{"id":7859,"date":"2021-01-08T10:38:06","date_gmt":"2021-01-08T10:38:06","guid":{"rendered":"https:\/\/airtradecentre.com.tr\/?p=7859"},"modified":"2021-01-10T19:20:41","modified_gmt":"2021-01-10T19:20:41","slug":"kanatcikli-borulu-isi-degistirgeclerinde-boru-iz-takibi-ile-evaporator-ve-kondenser-hesaplamalari","status":"publish","type":"post","link":"https:\/\/www.airtradecentre.com\/tr\/kanatcikli-borulu-isi-degistirgeclerinde-boru-iz-takibi-ile-evaporator-ve-kondenser-hesaplamalari\/","title":{"rendered":"Kanat\u00e7\u0131kl\u0131 Borulu Is\u0131 De\u011fi\u015ftirge\u00e7lerinde Boru \u0130z takibi ile Evaporat\u00f6r ve Kondenser Hesaplamalar\u0131"},"content":{"rendered":"

\u00d6zet<\/h2>\n

Kanat\u00e7\u0131kl\u0131 borulu \u0131s\u0131 de\u011fi\u015ftirge\u00e7leri g\u00fcn\u00fcm\u00fczde end\u00fcstriyel ve ev tipi klimalarda yayg\u0131n olarak kullan\u0131lmaktad\u0131r. Ev tipi klimalar, VRF-VRV sistemleri, \u00e7at\u0131 tipi klima cihazlar\u0131, havuz nem alma cihazlar\u0131 ve klima santrallerindeki direkt genle\u015fmeli sistemler bu tip \u0131s\u0131 de\u011fi\u015ftirge\u00e7lerinin kullan\u0131ld\u0131\u011f\u0131 alanlara en yayg\u0131n \u00f6rneklerdir. Klima sistemlerinde genel olarak; i\u00e7 hava \u015fartland\u0131rma taraf\u0131nda kanat\u00e7\u0131kl\u0131-borulu \u0131s\u0131 de\u011fi\u015ftirge\u00e7leri kullan\u0131l\u0131rken, yo\u011fu\u015fturucu olarak kanat\u00e7\u0131kl\u0131-borulu ya da mikro kanall\u0131 e\u015fanj\u00f6rler kullan\u0131lmaktad\u0131r. Bu \u00e7al\u0131\u015fmada kanat\u00e7\u0131kl\u0131 borulu buharla\u015ft\u0131r\u0131c\u0131 ve yo\u011fu\u015fturucu hesaplamalar\u0131n\u0131n matematiksel modeli incelenmi\u015ftir. Ayr\u0131ca, kesit-kesit metoduna g\u00f6re, homojen ve homojen olmayan hava da\u011f\u0131l\u0131m\u0131n\u0131n, buharla\u015ft\u0131r\u0131c\u0131 ile yo\u011fu\u015fturucu devrelerindeki ak\u0131\u015fkan debilerine etkisi ve performans bilgileri irdelenmi\u015ftir.<\/span><\/p>\n

Anahtar kelimeler:<\/b> Kanat\u00e7\u0131kl\u0131 borulu \u0131s\u0131 de\u011fi\u015ftirgeci, evaporat\u00f6r, kondenser, HAD analizi, hava da\u011f\u0131l\u0131m\u0131, devreleme algoritmas\u0131<\/span><\/p>\n

Giri\u015f<\/span><\/h2>\n

Kanat\u00e7\u0131kl\u0131 borulu \u0131s\u0131 de\u011fi\u015ftirge\u00e7leri g\u00fcn\u00fcm\u00fczde end\u00fcstriyel ve ev tipi klimalarda yayg\u0131n olarak kullan\u0131lmaktad\u0131r. Ev tipi klimalar, VRF-VRV sistemleri, \u00e7at\u0131 tipi klima cihazlar\u0131, havuz nem alma cihazlar\u0131 ve klima santrallerindeki direkt genle\u015fmeli sistemler bu tip \u0131s\u0131 de\u011fi\u015ftirge\u00e7lerinin kullan\u0131ld\u0131\u011f\u0131 alanlara en yayg\u0131n \u00f6rneklerdir. Klima sistemlerinde genel olarak; i\u00e7 hava \u015fartland\u0131rma taraf\u0131nda kanat\u00e7\u0131kl\u0131-borulu \u0131s\u0131 de\u011fi\u015ftirge\u00e7leri kullan\u0131l\u0131rken, yo\u011fu\u015fturucu olarak kanat\u00e7\u0131kl\u0131-borulu ya da mikro kanall\u0131 e\u015fanj\u00f6rler kullan\u0131lmaktad\u0131r. Bu \u00e7al\u0131\u015fmada kanat\u00e7\u0131kl\u0131 borulu buharla\u015ft\u0131r\u0131c\u0131 ve yo\u011fu\u015fturucu hesaplamalar\u0131n\u0131n matematiksel modeli incelenmi\u015ftir. Ayr\u0131ca, kesit-kesit metoduna g\u00f6re, homojen ve homojen olmayan hava da\u011f\u0131l\u0131m\u0131n\u0131n, buharla\u015ft\u0131r\u0131c\u0131 ile yo\u011fu\u015fturucu devrelerindeki ak\u0131\u015fkan debilerine etkisi ve performans bilgileri irdelenmi\u015ftir.<\/span><\/p>\n

Matematiksel model<\/b><\/h2>\n

Kanat\u00e7\u0131kl\u0131 borulu \u0131s\u0131 de\u011fi\u015ftirgeci hesaplar\u0131nda, literat\u00fcrde 3 tip matematiksel model kullan\u0131lmaktad\u0131r; B\u00f6lge-b\u00f6lge (Zone by zone), boru-boru (tube by tube), kesit-kesit (segment by segment). B\u00f6lge-b\u00f6lge hesab\u0131nda, e\u015fde\u011fer boru dizilimi ve e\u015fit da\u011f\u0131l\u0131ml\u0131 hava ak\u0131m\u0131 t\u00fcm \u0131s\u0131 de\u011fi\u015ftirgeci sistemine uygulan\u0131rken, boru-boru ve kesit-kesit metodunda \u0131s\u0131 de\u011fi\u015ftirgecinin boru dizilimine g\u00f6re \u0131s\u0131 ge\u00e7i\u015fi, bas\u0131n\u00e7 kayb\u0131 ve kapasite hesaplar\u0131 yap\u0131lmaktad\u0131r. Dolay\u0131s\u0131yla boru-boru ve kesit-kesit metotlar\u0131nda her ak\u0131\u015fkan devresindeki bas\u0131n\u00e7 kayb\u0131, k\u00fctlesel debi ve faz de\u011fi\u015fim s\u0131cakl\u0131klar\u0131 ayr\u0131 ayr\u0131 hesaplanabilmektedir. Literat\u00fcrde Fisher ve ark. (Fischer, ve di\u011ferleri, 1988),\u00a0 ile Mullen ve Ark. (Mullen, ve di\u011ferleri, 1997), b\u00f6lge- b\u00f6lge metodunu kullan\u0131rken, boru-boru metodunu Domanski ve arkada\u015flar\u0131 (Domanski, ve di\u011ferleri, 1983)\u00a0 ile Liang ve arkada\u015flar\u0131 (Liang, ve di\u011ferleri, 1998) kullanm\u0131\u015f, kesit- kesit metodunu ise Jiang (Jiang, ve di\u011ferleri, 2006) ve arkada\u015flar\u0131 ile Ragazzi (Ragazzi, ve di\u011ferleri, 1991) gibi ara\u015ft\u0131mac\u0131lar tercih etmi\u015ftir. \u015eekil 2.1\u2019de 3 modelin \u015fematik g\u00f6rseli yer almaktad\u0131r. Bu \u00e7al\u0131\u015fmada boru yerle\u015fimini yapmak, farkl\u0131 hava ak\u0131\u015f profillerini kullanabilmek ve ak\u0131\u015fkan bas\u0131n\u00e7 kay\u0131plar\u0131n\u0131n faz de\u011fi\u015fim s\u0131cakl\u0131\u011f\u0131na etkisini de inceleyebilmek i\u00e7in kesit-kesit modeli kullan\u0131lm\u0131\u015ft\u0131r.<\/span><\/p>\n

 <\/p>\n

\"Matematiksel<\/a>

Matematiksel Model<\/p><\/div>\n

1.1 Is\u0131 transferi hesaplamalar\u0131<\/b><\/h2>\n

Is\u0131 transferi hesaplamalar\u0131nda iki metot kullan\u0131lmaktad\u0131r; \u0510-NTU ve LMTD (Incorpera, ve di\u011ferleri, 2006). LMTD metodunda ak\u0131\u015fkan \u00e7\u0131k\u0131\u015f s\u0131cakl\u0131\u011f\u0131 hesaba iteratif giri\u015f parametresi olarak girilirken, \u0510-NTU metodunda \u00e7\u0131k\u0131\u015f s\u0131cakl\u0131\u011f\u0131 girilmesine gerek yoktur. Dolay\u0131s\u0131yla \u0510-NTU metodu hesaplama zaman performans\u0131 i\u00e7in daha uygun bir metottur. Bu \u00e7al\u0131\u015fmada \u0131s\u0131 transfer hesab\u0131nda \u0510-NTU metodu, kanat\u00e7\u0131k veriminde ise Schmidt metodu (Schmidt, 1949) kullan\u0131lm\u0131\u015ft\u0131r. Kuru y\u00fczeyler i\u00e7in a\u015fa\u011f\u0131daki form\u00fcller kullan\u0131l\u0131rken \u0131slak y\u00fczeyler i\u00e7in\u00a0 Harms ve arkada\u015flar\u0131n\u0131n (Harms, ve di\u011ferleri, 2003) olu\u015fturdu\u011fu modifiye edilmi\u015f form\u00fcller kullan\u0131lm\u0131\u015ft\u0131r.<\/span><\/p>\n

\"Is\u0131<\/a>

Is\u0131 transferi hesaplamalar\u0131<\/p><\/div>\n

Ak\u0131\u015fkan taraf\u0131 \u0131s\u0131 transfer katsay\u0131s\u0131 ve bas\u0131n\u00e7 kayb\u0131<\/b><\/h2>\n

Literat\u00fcrde, yo\u011fu\u015fma ve buharla\u015fma safhalar\u0131 i\u00e7in geli\u015ftirilmi\u015f bir\u00e7ok ampirik form\u00fcl bulunmaktad\u0131r. Bu \u00e7al\u0131\u015fmada, validasyon aral\u0131\u011f\u0131 geni\u015f ve ak\u0131\u015fkan k\u00fctlesel debisine g\u00f6re ak\u0131\u015f profillerinin en detayl\u0131 incelendi\u011fi Thome ve arkada\u015flar\u0131n\u0131n geli\u015ftirdi\u011fi yo\u011fu\u015fma (Thome, ve di\u011ferleri, 2003)\u00a0 ve buharla\u015fma (Thome, ve di\u011ferleri, 2005) form\u00fclleri kullan\u0131lm\u0131\u015ft\u0131r. Tek faz da ise Gnelski\u2019nin geli\u015ftirdi\u011fi form\u00fcller kullan\u0131lm\u0131\u015ft\u0131r. (Gnielinski, 1976)<\/span><\/p>\n

\"buhar

\u015eekil 2.\u00a0 40<\/span>\u00b0<\/span> C\u2019de R134 a gaz\u0131 boru i\u00e7 \u00e7ap\u0131:8 mm\u2019de buhar oran\u0131 ve ak\u0131\u015fkan k\u00fctlesel h\u0131z\u0131na g\u00f6re ak\u0131\u015f profilleri <\/span>(Thome, ve di\u011ferleri, 2003)<\/span><\/i><\/p><\/div>\n

\"Ak\u0131\u015f

\u015eekil 3.\u00a0 Yo\u011fu\u015fma ak\u0131\u015f tipine g\u00f6re kuruluk a\u00e7\u0131lar\u0131 tan\u0131m\u0131 <\/span>(Thome, ve di\u011ferleri, 2003)<\/span><\/i><\/p><\/div>\n

 <\/p>\n

Ak\u0131\u015fkan bas\u0131n\u00e7 kayb\u0131 \u00fc\u00e7 ana kola ayr\u0131lmaktad\u0131r; S\u00fcrt\u00fcnme, yer \u00e7ekimi ve h\u0131zlanma kaynakl\u0131. En bask\u0131n olan ise s\u00fcrt\u00fcnmeye dayal\u0131 olan elamand\u0131r. S\u00fcrt\u00fcnmeye dayal\u0131 bas\u0131n\u00e7 kayb\u0131nda buharla\u015fma durumunda yine Thome ve arkada\u015flar\u0131n\u0131n (Thome, ve di\u011ferleri, 2007) geli\u015ftirmi\u015f oldu\u011fu form\u00fcller kullan\u0131l\u0131rken, yo\u011fu\u015fmada Souza ve arkada\u015flar\u0131n\u0131n (Souza, ve di\u011ferleri, 1992) geli\u015ftirmi\u015f oldu\u011fu form\u00fcller kullan\u0131lm\u0131\u015ft\u0131r. Tek fazl\u0131 durumda da Ragazzi ve arkada\u015flar\u0131n\u0131n geli\u015ftirmi\u015f oldu\u011fu form\u00fcller kullan\u0131lm\u0131\u015ft\u0131r.\u00a0<\/span><\/p>\n

\"Formul\"<\/p>\n

Hava taraf\u0131 \u0131s\u0131 transfer katsay\u0131s\u0131 ve bas\u0131n\u00e7 kayb\u0131<\/b><\/h2>\n

Kanat\u00e7\u0131kl\u0131 borulu \u0131s\u0131 de\u011fi\u015ftirge\u00e7lerinde d\u00fcz, dalgal\u0131, louver ve slit kanat\u00e7\u0131k olarak d\u00f6rt farkl\u0131 kanat\u00e7\u0131k tipi kullan\u0131lmaktad\u0131r. Kanat\u00e7\u0131k yap\u0131lar\u0131 de\u011fi\u015ftik\u00e7e \u0131s\u0131 transferi ve bas\u0131n\u00e7 kayb\u0131 katsay\u0131lar\u0131 de\u011fi\u015fmektedir. Bu \u00e7al\u0131\u015fmada dalgal\u0131 kanat\u00e7\u0131k yap\u0131s\u0131 baz al\u0131nm\u0131\u015f ve bunun i\u00e7in Wang ve arkada\u015flar\u0131n\u0131n (Wang, ve di\u011ferleri, 2002) Colburn J ve fan s\u00fcrt\u00fcnme fakt\u00f6r\u00fcne g\u00f6re geli\u015ftirmi\u015f oldu\u011fu form\u00fcller kullan\u0131lm\u0131\u015ft\u0131r. Katsay\u0131lar her kesit i\u00e7in farkl\u0131 hava giri\u015f \u00e7\u0131k\u0131\u015f ko\u015fullar\u0131nda, t\u00fcm e\u015fanj\u00f6r y\u00fczeyi i\u00e7in hesaplanm\u0131\u015ft\u0131r.<\/span><\/p>\n

\"\"<\/p>\n

Wang ve arkada\u015flar\u0131n\u0131n olu\u015fturdu\u011fu form\u00fcller a\u015fa\u011f\u0131daki gibi ge\u00e7erlilik alan\u0131na sahiptir.<\/span><\/p>\n

\"\"<\/p>\n

\"\u015eekil

\u015eekil 4. Dalgal\u0131 kanat\u00e7\u0131kl\u0131 geometrik parametreler (Wang, 2000)<\/p><\/div>\n

 <\/p>\n

Boru dizilimi<\/h2>\n

Kanat\u00e7\u0131kl\u0131 borulu sistemlerin kapasite hesaplamalar\u0131nda boru iz takibi b\u00fcy\u00fck \u00f6nem ta\u015f\u0131maktad\u0131r. Literat\u00fcrde, Domanski ve Jiang gibi ara\u015ft\u0131rmac\u0131lar\u0131n boru iz takibi yapmak i\u00e7in geli\u015ftirdi\u011fi ve \u201cJunction Tube Matrix\u201d olarak adland\u0131rd\u0131\u011f\u0131 matriks sistemler bulunmaktad\u0131r (Jiang, ve di\u011ferleri, 2006) (Domanski, P. A.; Yashar, D., 2004). \u015eekil 5\u2019de elektrik devre analizine benzer yap\u0131da incelenmi\u015f bir devreleme sisteminin \u00f6rne\u011fi verilmi\u015ftir. \u015eekil 5\u2019te ak\u0131\u015fkan\u0131n y\u00f6nleri sayfa i\u00e7ine ve d\u0131\u015f\u0131na g\u00f6re tarif edilmi\u015f olup, \u00e7izgilerlerle de borulardan ge\u00e7i\u015f noktalar\u0131 (kuruve yerleri) belirtilmi\u015ftir. Ak\u0131\u015fkan 1 ve 5. borulardan ge\u00e7i\u015f yap\u0131p, 2 ve 6. borular\u0131 takip ederek 3 boruda birle\u015fmi\u015f, 7,4 ve 8 nolu borular\u0131 takip ederek ak\u0131\u015fkan devreden \u00e7\u0131km\u0131\u015ft\u0131r. Bu \u00f6rnekten yola \u00e7\u0131k\u0131larak, bu \u00e7al\u0131\u015fmada da devredeki ak\u0131\u015fkan borulara giri\u015f s\u0131ralamas\u0131 ve y\u00f6nleri tarif edilmi\u015f ve iz takibi yap\u0131lm\u0131\u015ft\u0131r. Boru iz takibi ile;<\/p>\n

    \n
  1. Ak\u0131\u015fkan faz durumu ve bas\u0131n\u00e7 kay\u0131plar\u0131 her devre i\u00e7in hesaplanabilir.<\/li>\n
  2. Ak\u0131\u015fkan debisi her devre i\u00e7in ayr\u0131 ayr\u0131 hesaplanabilir.<\/li>\n
  3. Farkl\u0131 devrelerde, farkl\u0131 ak\u0131\u015fkan tipleri ile kapasite hesaplanabilir.<\/li>\n
  4. Borular \u00fczerinden ge\u00e7en havan\u0131n homojen olmad\u0131\u011f\u0131 durumlarda hesaplamalar yap\u0131labilir.<\/li>\n<\/ol>\n

    Bu \u00e7al\u0131\u015fmada da her boru \u00fczerinden ge\u00e7en hava miktar\u0131 HAD analizine g\u00f6re yorumlan\u0131p, homojen olmad\u0131\u011f\u0131 duruma g\u00f6re hava debisi de\u011fi\u015fkenli\u011fi sa\u011flanm\u0131\u015ft\u0131r. Her devrenin her borusundaki segmentlerde, ak\u0131\u015fkan\u0131n fiziksel durumuna ba\u011fl\u0131 olarak \u0131s\u0131 transfer ve bas\u0131n\u00e7 kayb\u0131 hesaplar\u0131 yap\u0131larak sim\u00fclasyon tamamlanm\u0131\u015ft\u0131r.<\/p>\n

    \"\"

    \u015eekil 5. Ayr\u0131\u015fma ve birle\u015fme boru dizilimi elektrik analojisi (Jiang, ve di\u011ferleri, 2006)<\/p><\/div>\n

    Santral Kesitinde Is\u0131 De\u011fi\u015ftirgeci \u00dczerinden Ge\u00e7en Hava Ak\u0131\u015f\u0131n\u0131n HAD Analizi<\/b><\/h2>\n

    Bu \u00e7al\u0131\u015fmada 1200×925 mm i\u00e7 kesite sahip bir santralin hava da\u011f\u0131l\u0131m\u0131 FDS (Versiyon 6.5.2) program\u0131nda incelenmi\u015ftir. Hava debisi 8325 m<\/span>3<\/span>\/h olan bir fan ile emi\u015f hatt\u0131ndaki bir \u0131s\u0131 de\u011fi\u015ftirgeci 3 boyutlu olarak sim\u00fcle edilmi\u015ftir. Yandan tam merkezde al\u0131nan kesitte, \u0131s\u0131 de\u011fi\u015ftirgecinin \u00fcst ve alt b\u00f6lgelerinde hava h\u0131z\u0131n\u0131n 0,25-1 m\/s, orta taraflar\u0131nda ise\u00a0 2,5-3 m\/s oldu\u011fu g\u00f6zlemlenmi\u015ftir. Sim\u00fclasyondaki matematiksel parametreler Tablo 1\u2019de, sim\u00fclasyon modellemesi \u015eekil 6\u2019da, sim\u00fclasyon \u00e7\u0131kt\u0131s\u0131 ise \u015eekil 7\u2019de belirtilmi\u015ftir. Havan\u0131n fiziksel \u00f6zellikleri 1 atm bas\u0131n\u00e7, 20<\/span>\u00b0<\/span>C s\u0131cakl\u0131kta al\u0131nm\u0131\u015f ve yo\u011funlu\u011fu 1,2kg\/m<\/span>3<\/span> olarak kabul edilmi\u015ftir. HAD analizinde mesh say\u0131s\u0131ndan ba\u011f\u0131ms\u0131zla\u015ft\u0131rma yap\u0131lmam\u0131\u015ft\u0131r.<\/span><\/p>\n

    Tablo 1. HAD analizi girdileri<\/span><\/p>\n\n\n\n\n\n\n\n\n\n
    Santral i\u00e7 kesiti<\/span><\/td>\nmm<\/span><\/td>\n1200×925<\/span><\/td>\n<\/tr>\n
    Is\u0131 de\u011fi\u015ftirgeci kesiti<\/span><\/td>\nmm<\/span><\/td>\n1090×815<\/span><\/td>\n<\/tr>\n
    Hava debisi<\/span><\/td>\nm<\/span>3<\/span>\/h<\/span><\/td>\n8325<\/span><\/td>\n<\/tr>\n
    Santral i\u00e7 hava h\u0131z\u0131<\/span><\/td>\nm\/s<\/span><\/td>\n2,083<\/span><\/td>\n<\/tr>\n
    Is\u0131 de\u011fi\u015ftirgeci hava h\u0131z\u0131<\/span><\/td>\nm\/s<\/span><\/td>\n2,603<\/span><\/td>\n<\/tr>\n
    Batarya i\u00e7i mesh yo\u011funlu\u011fu<\/span><\/td>\n<\/td>\n1,25 mm<\/span>2<\/span> de 1 nokta<\/span><\/td>\n<\/tr>\n
    Santral i\u00e7i mesh yo\u011funlu\u011fu<\/span><\/td>\n<\/td>\n31,25 mm<\/span>2<\/span> de 1 nokta<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

     <\/p>\n

    \"\u015eekil

    \u015eekil 6. HAD analizi modellemesi (1- Fan sac\u0131, 2-Fan, 3- Is\u0131 De\u011fi\u015ftirgeci)<\/p><\/div>\n

    \"\"

    \u015eekil 7. HAD analizi ile kesit i\u00e7erisindeki \u0131s\u0131 degi\u015ftirgecinin \u00fczerinden ge\u00e7en hava da\u011f\u0131l\u0131m\u0131 g\u00f6rsel<\/p><\/div>\n

     <\/p>\n

    \"\"

    \u015eekil 8. HAD analizi \u0131s\u0131 de\u011fi\u015ftirgeci \u00f6n y\u00fczeyi<\/p><\/div>\n

     <\/p>\n

    \"\"

    \u015eekil 9. HAD analizi ile \u0131s\u0131 de\u011fi\u015ftirgeci \u00f6n y\u00fczeyindeki hava da\u011f\u0131l\u0131m\u0131<\/p><\/div>\n

     <\/p>\n

    Tablo 2. Modellenen \u0131s\u0131 de\u011fi\u015ftirgeci notasyonu<\/span><\/p>\n\n\n\n\n\n\n\n\n\n
    Boru enine mesafe<\/span><\/td>\nmm<\/span><\/td>\n25<\/span><\/td>\n<\/tr>\n
    Boru dikine mesafe<\/span><\/td>\nmm<\/span><\/td>\n22<\/span><\/td>\n<\/tr>\n
    Boru \u00e7ap\u0131<\/span><\/td>\nin\u00e7<\/span><\/td>\n3\/8<\/span><\/td>\n<\/tr>\n
    Lamel boyu<\/span><\/td>\nmm<\/span><\/td>\n980<\/span><\/td>\n<\/tr>\n
    Lamel aral\u0131\u011f\u0131<\/span><\/td>\nmm<\/span><\/td>\n5<\/span><\/td>\n<\/tr>\n
    Boru say\u0131s\u0131<\/span><\/td>\n\u00a0<\/span><\/td>\n32<\/span><\/td>\n<\/tr>\n
    S\u0131ra say\u0131s\u0131<\/span><\/td>\n\u00a0<\/span><\/td>\n6<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Buharla\u015ft\u0131r\u0131c\u0131 ve Yo\u011fu\u015fturucu Sim\u00fclasyonu<\/b><\/h2>\n

    Fan \u00f6n\u00fcndeki bir \u0131s\u0131 de\u011fi\u015ftirgeci \u00fczerinden ge\u00e7en hava ak\u0131\u015f\u0131 sim\u00fcle edilmi\u015f ve \u0131s\u0131 de\u011fi\u015ftirgecinin \u00fczerindeki hava da\u011f\u0131l\u0131m\u0131n\u0131n homojen olmad\u0131\u011f\u0131 belirtilmi\u015ftir. Homojen olmayan hava da\u011f\u0131l\u0131m\u0131 ya da farkl\u0131 pas say\u0131lar\u0131na sahip devrelerde ak\u0131\u015fkan debileri farkl\u0131l\u0131klar g\u00f6stermektedir. Bu da so\u011futucu ak\u0131\u015fkan\u0131n \u0131s\u0131 de\u011fi\u015ftirgecinin her kesidinde ayr\u0131 buharla\u015fma ya da yo\u011fu\u015fma s\u0131cakl\u0131\u011f\u0131nda \u00e7al\u0131\u015fmas\u0131na sebep olmaktad\u0131r. Bu \u00e7al\u0131\u015fma da her devrede so\u011futucu ak\u0131\u015fkan\u0131n takip etti\u011fi yol, sim\u00fclasyon program\u0131na tan\u0131t\u0131lm\u0131\u015f, hava da\u011f\u0131l\u0131m\u0131n\u0131n e\u015fit oldu\u011fu ve olmad\u0131\u011f\u0131 durumlar g\u00f6z \u00f6n\u00fcne al\u0131narak hesaplamalar yap\u0131lm\u0131\u015ft\u0131r.\u00a0<\/span><\/p>\n

    Buharla\u015ft\u0131r\u0131c\u0131 ve Yo\u011fu\u015fturucu Girdileri<\/b><\/h2>\n

    Bu \u00e7al\u0131\u015fmada kullan\u0131lan buharla\u015ft\u0131r\u0131c\u0131 ve yo\u011fu\u015fturucu geometrik \u00f6zellikleri Tablo 3\u2019te\u00a0 verilmi\u015ftir.\u00a0 \u015eekil 10\u2019da ise hava ak\u0131\u015f y\u00f6nleri ile her devreye y\u00f6nelik boru giri\u015f-\u00e7\u0131k\u0131\u015f y\u00f6nleri tarif edilmi\u015ftir. Boru iz takibinde \u2018Z\u2019 tipi devreleme kullan\u0131lm\u0131\u015f, so\u011futucu ak\u0131\u015fkan olarak R410A se\u00e7ilmi\u015ftir.<\/span><\/p>\n

    Tablo 3. Buharla\u015ft\u0131r\u0131c\u0131 ve yo\u011fu\u015fturucu geometrik \u00f6zellikleri<\/span><\/p>\n

     <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    A\u00e7\u0131klama<\/b><\/td>\nKondenser<\/b><\/td>\nEvaporator<\/b><\/td>\nBr<\/b><\/td>\n<\/tr>\n
    S\u0131ra Say\u0131s\u0131<\/span><\/td>\n4<\/span><\/td>\n4<\/span><\/td>\nad<\/span><\/td>\n<\/tr>\n
    T\u00fcp say\u0131s\u0131<\/span><\/td>\n18<\/span><\/td>\n12<\/span><\/td>\nad<\/span><\/td>\n<\/tr>\n
    Lamel boyu<\/span><\/td>\n920<\/span><\/td>\n800<\/span><\/td>\nmm<\/span><\/td>\n<\/tr>\n
    Boru et kal\u0131nl\u0131\u011f\u0131<\/span><\/td>\n0,4<\/span><\/td>\n0,35<\/span><\/td>\nmm<\/span><\/td>\n<\/tr>\n
    Boru d\u0131\u015f \u00e7ap\u0131<\/span><\/td>\n9,52<\/span><\/td>\n9,52<\/span><\/td>\nmm<\/span><\/td>\n<\/tr>\n
    Boru enine mesafe<\/span><\/td>\n22<\/span><\/td>\n22<\/span><\/td>\nmm<\/span><\/td>\n<\/tr>\n
    Boru y\u00fcksekli\u011fine mesafe<\/span><\/td>\n25<\/span><\/td>\n25<\/span><\/td>\nmm<\/span><\/td>\n<\/tr>\n
    Devre say\u0131s\u0131<\/span><\/td>\n3<\/span><\/td>\n6<\/span><\/td>\n<\/td>\n<\/tr>\n
    Lamel kal\u0131nl\u0131\u011f\u0131<\/span><\/td>\n0,1<\/span><\/td>\n0,1<\/span><\/td>\nmm<\/span><\/td>\n<\/tr>\n
    Lamel aras\u0131<\/span><\/td>\n2,1<\/span><\/td>\n2,1<\/span><\/td>\nmm<\/span><\/td>\n<\/tr>\n
    Kanat\u00e7\u0131k tipi<\/span><\/td>\nDalgal\u0131<\/span><\/td>\nDalgal\u0131<\/span><\/td>\n<\/td>\n<\/tr>\n
    Dalga \u00fc\u00e7gen enine mesafesi<\/span><\/td>\n6,24<\/span><\/td>\n6,24<\/span><\/td>\nmm<\/span><\/td>\n<\/tr>\n
    Dalga a\u00e7\u0131s\u0131<\/span><\/td>\n9,2<\/span><\/td>\n9,2<\/span><\/td>\nDerece<\/span><\/td>\n<\/tr>\n
    Dalga y\u00fcksekli\u011fi<\/span><\/td>\n1<\/span><\/td>\n1<\/span><\/td>\nmm<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Tablo 4. Buharla\u015ft\u0131r\u0131c\u0131 ve yo\u011fu\u015fturucu ak\u0131\u015fkan-hava giri\u015f de\u011ferleri<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
    Yo\u011fu\u015fturucu\u00a0<\/span><\/td>\nAk\u0131\u015fkan giri\u015f s\u0131cakl\u0131\u011f\u0131<\/span><\/td>\n\u00b0C<\/span><\/td>\n80<\/span><\/td>\n<\/tr>\n
    Ak\u0131\u015fkan giri\u015f faz de\u011fi\u015fim s\u0131cakl\u0131\u011f\u0131<\/span><\/td>\n\u00b0C<\/span><\/td>\n50<\/span><\/td>\n<\/tr>\n
    Ak\u0131\u015fkan debisi<\/span><\/td>\nkg\/h<\/span><\/td>\n275<\/span><\/td>\n<\/tr>\n
    Hava debisi<\/span><\/td>\nm<\/span>3<\/span>\/h<\/span><\/td>\n4000<\/span><\/td>\n<\/tr>\n
    Hava giri\u015f ko\u015fullar\u0131<\/span><\/td>\n\u00b0C\/%RH<\/span><\/td>\n35\/40<\/span><\/td>\n<\/tr>\n
    Buharla\u015ft\u0131r\u0131c\u0131\u00a0<\/span><\/td>\nAk\u0131\u015fkan giri\u015f buhar oran\u0131<\/span><\/td>\n%<\/span><\/td>\n0,29<\/span><\/td>\n<\/tr>\n
    Ak\u0131\u015fkan giri\u015f faz de\u011fi\u015fim s\u0131cakl\u0131\u011f\u0131<\/span><\/td>\n\u00b0C<\/span><\/td>\n6<\/span><\/td>\n<\/tr>\n
    Ak\u0131\u015fkan debisi<\/span><\/td>\nkg\/h<\/span><\/td>\n275<\/span><\/td>\n<\/tr>\n
    Hava debisi<\/span><\/td>\nm<\/span>3<\/span>\/h<\/span><\/td>\n2000<\/span><\/td>\n<\/tr>\n
    Hava giri\u015f ko\u015fullar\u0131<\/span><\/td>\n\u00b0C\/%RH<\/span><\/td>\n27\/50<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \"\"

    \u015eekil 10. Sim\u00fclasyonda kullan\u0131lan \u0131s\u0131 de\u011fi\u015ftirge\u00e7lerinin devrelemesi<\/p><\/div>\n

    Buharla\u015ft\u0131r\u0131c\u0131 ve Yo\u011fu\u015fturucu Hava Da\u011f\u0131l\u0131m\u0131n\u0131n Kapasiteye Etkisi<\/b><\/h2>\n

    Homojen hava da\u011f\u0131l\u0131m\u0131n\u0131n ger\u00e7ekle\u015fti\u011fi \u0131s\u0131 de\u011fi\u015ftirge\u00e7lerinde so\u011futucu ak\u0131\u015fkan, her devrede birebir ayn\u0131 fiziksel de\u011fi\u015fimi sa\u011flamaktad\u0131r. Homojen olmayan hava ak\u0131\u015f\u0131nda ise, so\u011futucu ak\u0131\u015fkan, \u0131s\u0131 de\u011fi\u015ftirge\u00e7lerinin her devresinde farkl\u0131 fiziksel \u00f6zelliklerle devrelerden \u00e7\u0131kmaktad\u0131r. Tablo 5\u2019te \u0131s\u0131 de\u011fi\u015ftirge\u00e7lerine giren hava debilerinin oranlar\u0131 havan\u0131n ilk girdi\u011fi borulara g\u00f6re HAD anailizinden de \u00e7\u0131kan sonu\u00e7lar baz al\u0131narak yakla\u015f\u0131k olarak verilmi\u015ftir. Devre ve boru adetleri sebebiyle hesaplama sonu\u00e7 raporu uzun \u00e7\u0131kt\u0131lara sahip olaca\u011f\u0131ndan, HAD analizinde ger\u00e7ek bir \u00f6rnek sim\u00fcle edilirken, sim\u00fclasyon program\u0131nda, daha k\u00fc\u00e7\u00fck geometrilere sahip \u0131s\u0131 de\u011fi\u015ftirge\u00e7leri kullan\u0131lm\u0131\u015f ve hava ak\u0131\u015f\u0131na referans olmas\u0131 amac\u0131yla HAD analizi sonu\u00e7lar\u0131 kullan\u0131lm\u0131\u015ft\u0131r. Hava da\u011f\u0131l\u0131m\u0131 yakla\u015f\u0131k de\u011ferleri atan\u0131rken ilk borulara de\u011fer atanm\u0131\u015f ve arkas\u0131ndaki borular\u0131n, ilk s\u0131radaki borulardaki hava da\u011f\u0131l\u0131m oranlar\u0131na benzer olaca\u011f\u0131 kabul edilmi\u015ftir.<\/span><\/p>\n

    Tablo 5. Buharla\u015ft\u0131r\u0131c\u0131 ve yo\u011fu\u015fturucudaki borulara hava giri\u015f oranlar\u0131<\/span><\/p>\n\n\n\n\n\n
    Boru numaras\u0131<\/td>\n1<\/td>\n2<\/td>\n3<\/td>\n4<\/td>\n5<\/td>\n6<\/td>\n7<\/td>\n8<\/td>\n9<\/td>\n10<\/td>\n11<\/td>\n12<\/td>\n13<\/td>\n14<\/td>\n15<\/td>\n16<\/td>\n17<\/td>\n18<\/td>\n<\/tr>\n
    Yo\u011fu\u015fturucu hava debisi oran\u0131<\/td>\n0,7<\/td>\n0,7<\/td>\n0,7<\/td>\n0,9<\/td>\n0,9<\/td>\n0,9<\/td>\n1,3<\/td>\n1,3<\/td>\n1,3<\/td>\n1,3<\/td>\n1,3<\/td>\n1,3<\/td>\n1<\/td>\n1<\/td>\n1<\/td>\n0,8<\/td>\n0,8<\/td>\n0,8<\/td>\n<\/tr>\n
    Buharla\u015ft\u0131r\u0131c\u0131 hava debisi oran\u0131<\/td>\n0,8<\/td>\n0,8<\/td>\n0,9<\/td>\n0,9<\/td>\n1,3<\/td>\n1,3<\/td>\n1,5<\/td>\n1,5<\/td>\n0,8<\/td>\n0,8<\/td>\n0,7<\/td>\n0,7<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Tablo 6. Homojen ve homojen olmayan hava da\u011f\u0131l\u0131m\u0131 etkisindeki yo\u011fu\u015fturucudan,i\u015f ak\u0131\u015fkan\u0131 \u00e7\u0131k\u0131\u015f ko\u015fullar\u0131 ve kapasite\u00a0<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n
    Yo\u011fu\u015fturucu<\/b><\/td>\n<\/tr>\n
    Hava da\u011f\u0131l\u0131m\u0131<\/span><\/td>\nDevre no<\/span><\/td>\nKapasite<\/span><\/td>\n\u00c7\u0131k\u0131\u015f buhar oran\u0131<\/span><\/td>\n\u00c7\u0131k\u0131\u015f yo\u011fu\u015fma s\u0131cakl\u0131\u011f\u0131<\/span><\/td>\nA\u015f\u0131r\u0131 so\u011futma s\u0131cakl\u0131\u011f\u0131<\/span><\/td>\nK\u00fctlesel debi<\/span><\/td>\n<\/tr>\n
    \u00a0<\/span><\/td>\n\u00a0<\/span><\/td>\nkW<\/span><\/td>\n%<\/span><\/td>\n\u00b0C<\/span><\/td>\n\u00b0C<\/span><\/td>\nkg\/h<\/span><\/td>\n<\/tr>\n
    Homojen olmayan<\/span><\/td>\n1.devre<\/span><\/td>\n4,44<\/span><\/td>\n0,030962<\/span><\/td>\n49,3<\/span><\/td>\n0<\/span><\/td>\n88,01<\/span><\/td>\n<\/tr>\n
    2.devre<\/span><\/td>\n5,56<\/span><\/td>\n0<\/span><\/td>\n49,3<\/span><\/td>\n9,8<\/span><\/td>\n97,35<\/span><\/td>\n<\/tr>\n
    3.devre<\/span><\/td>\n4,75<\/span><\/td>\n0<\/span><\/td>\n49,3<\/span><\/td>\n2,4<\/span><\/td>\n89,63<\/span><\/td>\n<\/tr>\n
    Kollekt\u00f6r \u00e7\u0131k\u0131\u015f\u0131<\/span><\/td>\n14,75<\/span><\/td>\n0<\/span><\/td>\n49,3<\/span><\/td>\n3,52<\/span><\/td>\n275<\/span><\/td>\n<\/tr>\n
    Homojen<\/span><\/td>\n\u00a0<\/span><\/td>\n15,03<\/span><\/td>\n1<\/span><\/td>\n49,3<\/span><\/td>\n5,3<\/span><\/td>\n275<\/span><\/td>\n<\/tr>\n
    Fark<\/span><\/td>\n\u00a0<\/span><\/td>\n1,90%<\/span><\/td>\n\u00a0<\/span><\/td>\n\u00a0<\/span><\/td>\n50,57%<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Tablo 7. Homojen ve homojen olmayan hava da\u011f\u0131l\u0131m\u0131 etkisindeki buharla\u015ft\u0131r\u0131c\u0131dan, ak\u0131\u015fkan \u00e7\u0131k\u0131\u015f ko\u015fullar\u0131 ve kapasite<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Buharla\u015ft\u0131r\u0131c\u0131<\/b><\/td>\n<\/tr>\n
    Hava da\u011f\u0131l\u0131m\u0131<\/span><\/td>\nDevre no<\/span><\/td>\nKapasite<\/span><\/td>\n\u00c7\u0131k\u0131\u015f buhar oran\u0131<\/span><\/td>\n\u00c7\u0131k\u0131\u015f buharla\u015fma s\u0131cakl\u0131\u011f\u0131<\/span><\/td>\nA\u015f\u0131r\u0131 k\u0131zd\u0131rma s\u0131cakl\u0131\u011f\u0131<\/span><\/td>\nK\u00fctlesel debi<\/span><\/td>\n<\/tr>\n
    \u00a0<\/span><\/td>\n\u00a0<\/span><\/td>\nkW<\/span><\/td>\n%<\/span><\/td>\n\u00b0C<\/span><\/td>\n\u00b0C<\/span><\/td>\nkg\/h<\/span><\/td>\n<\/tr>\n
    Homojen olmayan<\/span><\/td>\n1<\/span><\/td>\n2,33<\/span><\/td>\n0,981267<\/span><\/td>\n5,55<\/span><\/td>\n0<\/span><\/td>\n58,4<\/span><\/td>\n<\/tr>\n
    2<\/span><\/td>\n2,47<\/span><\/td>\n1<\/span><\/td>\n5,55<\/span><\/td>\n4,55<\/span><\/td>\n58,33<\/span><\/td>\n<\/tr>\n
    3<\/span><\/td>\n2,61<\/span><\/td>\n1<\/span><\/td>\n5,55<\/span><\/td>\n13,31<\/span><\/td>\n57,81<\/span><\/td>\n<\/tr>\n
    4<\/span><\/td>\n2,63<\/span><\/td>\n1<\/span><\/td>\n5,55<\/span><\/td>\n13,66<\/span><\/td>\n58,17<\/span><\/td>\n<\/tr>\n
    5<\/span><\/td>\n2,33<\/span><\/td>\n0,981267<\/span><\/td>\n5,55<\/span><\/td>\n0<\/span><\/td>\n58,4<\/span><\/td>\n<\/tr>\n
    6<\/span><\/td>\n2,24<\/span><\/td>\n0,950337<\/span><\/td>\n5,54<\/span><\/td>\n0<\/span><\/td>\n58,88<\/span><\/td>\n<\/tr>\n
    Kollekt\u00f6r \u00e7\u0131k\u0131\u015f\u0131<\/span><\/td>\n14,61<\/span><\/td>\n1<\/span><\/td>\n5,55<\/span><\/td>\n2,2<\/span><\/td>\n350<\/span><\/td>\n<\/tr>\n
    Homojen<\/span><\/td>\n\u00a0<\/span><\/td>\n14,82<\/span><\/td>\n1<\/span><\/td>\n5,55<\/span><\/td>\n10,52<\/span><\/td>\n350<\/span><\/td>\n<\/tr>\n
    Fark<\/span><\/td>\n\u00a0<\/span><\/td>\n1,44%<\/span><\/td>\n\u00a0<\/span><\/td>\n\u00a0<\/span><\/td>\n378,18%<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Tablo 6 ve 7\u2019de g\u00f6r\u00fcld\u00fc\u011f\u00fc \u00fczere yo\u011fu\u015fturucu ve buharla\u015ft\u0131r\u0131c\u0131da hava ak\u0131\u015f\u0131n\u0131n\u0131n homojen ya da homojen olmamas\u0131 durumlar\u0131na g\u00f6re so\u011futucu ak\u0131\u015fkan\u0131n \u00e7\u0131k\u0131\u015f ko\u015fullar\u0131 de\u011fi\u015fmektedir. Homojen hava da\u011f\u0131l\u0131ml\u0131 yo\u011fu\u015fturucu da a\u015f\u0131r\u0131 so\u011futma miktar\u0131 5,3\u00b0C iken, homojen olmayan hava da\u011f\u0131l\u0131m\u0131nda bu de\u011fer 3,52\u00b0C\u2019d\u0131r. Buharla\u015ft\u0131r\u0131c\u0131 da ise homojen hava da\u011f\u0131l\u0131m\u0131nda a\u015f\u0131r\u0131 k\u0131zd\u0131rma miktar\u0131 10,52\u00b0C iken, homojen olmayan hava da\u011f\u0131l\u0131m\u0131nda bu de\u011fer 2,2\u00b0C olmaktad\u0131r.\u00a0<\/span><\/p>\n

    Sonu\u00e7lar<\/b><\/h2>\n

    Bu \u00e7al\u0131\u015fmada, end\u00fcstriyel ve ev tipi \u0131s\u0131 pompas\u0131 cihazlar\u0131nda en \u00e7ok kullan\u0131lan kanat\u00e7\u0131kl\u0131 borulu \u0131s\u0131 de\u011fi\u015ftirge\u00e7lerinin piyasada kullan\u0131lan se\u00e7im programlar\u0131ndan farkl\u0131 olarak, sim\u00fclasyonu yap\u0131lm\u0131\u015ft\u0131r. Buharla\u015ft\u0131r\u0131c\u0131 ve yo\u011fu\u015fturucu olarak iki \u0131s\u0131 de\u011fi\u015ftirgecinde ak\u0131\u015fkan durumu sim\u00fcle edilmi\u015f, homojen ve homojen olmayan hava da\u011f\u0131l\u0131mlar\u0131na g\u00f6re ak\u0131\u015fkan\u0131n fiziksel \u00f6zellikleri irdelenmi\u015ftir. Homojen olmayan hava da\u011f\u0131l\u0131m\u0131na sahip \u0131s\u0131 de\u011fi\u015ftirgecinin kapasitesi, homojen olan duruma g\u00f6re %2 metrebesinde farkl\u0131l\u0131k g\u00f6stermi\u015ftir. Bu fark, havan\u0131n homojen olmayan da\u011f\u0131l\u0131mdaki de\u011ferlerin d\u00fczensizlik formuna g\u00f6re art\u0131\u015f g\u00f6sterecektir. Hava ak\u0131\u015f\u0131n\u0131n homojene yak\u0131n oldu\u011fu durumda ise sistem performans\u0131 artacak ve verimlilik de\u011ferleri \u00fczerinde art\u0131\u015f g\u00f6zlenecektir.<\/span><\/p>\n

    Kaynaklar<\/b><\/h3>\n

    ARI. 2001.<\/b> Forced-circulation air-cooling and air-heating coils, ARI standard 410. <\/span><\/i>Virginia\u00a0: Air-conditioning and refrigeration institute, 2001.<\/span><\/p>\n

    Condensation in horizontal tubes, part 2: new heat transfer model based on flow regimes. <\/span><\/i>Thome, J.R., Hajal, J.E. ve Cavallini, A. 2003.<\/b> 2003, International journal of heat and mass transfer, s. 3365-3387.<\/span><\/p>\n

    Domanski, P. A. ve Didion, D. 1983.<\/b> Computer Modeling of the Vapor compression cycle with constant flow are expansion device. 1983, Cilt 155.<\/span><\/p>\n

    Domanski, P. A.; Yashar, D. 2004.<\/b> An optimized design of finned tube evaporators using the learnable evolution model. 2004, s. 201-211.<\/span><\/p>\n

    Emerson.<\/b> [\u00c7evrimi\u00e7i] https:\/\/climate.emerson.com\/documents\/zp-r410a-scroll-compressors-range-en-gb-4763438.pdf.<\/span><\/p>\n

    Finite circular fin method for wavy fin-and-tube heat exchangers under fully and partially wet surface conditions. <\/span><\/i>Pirompugd, W., Wang, C. C. ve Wongwises, S. 2008.<\/b> 2008, International Journal of Heat and Mass Transfer, s. 4002-4017.<\/span><\/p>\n

    Fischer, S.K., Rice, C.K. ve Jackson, W.L. 1988.<\/b> The Oak ridge heatpump design model: Mark III version program documentation. <\/span><\/i>bas\u0131m yeri bilinmiyor\u00a0: Oak Ridge Natioanal Laborotory, 1988.<\/span><\/p>\n

    Frascold.<\/b> [\u00c7evrimi\u00e7i] https:\/\/www.frascold.it\/public\/files\/files\/FCAT250_02_EN.pdf.<\/span><\/p>\n

    Gnielinski, V. 1976.<\/b> New equation for heat and mass transfer in turbulent pipe and channel flow. 1976, pp. 359-368.<\/span><\/p>\n

    Harms, T. M., Groll, E. A. ve Braun, J.E. 2003.<\/b> Accurate charge inventory modeling for unitary air conditioners. 2003.<\/span><\/p>\n

    Incorpera, Frank P., ve di\u011ferleri. 2006.<\/b> Heat Exchangers. <\/span>Fundementals of heat and mass transfer. <\/span><\/i>bas\u0131m yeri bilinmiyor\u00a0: Daniel Sayre, 2006, s. 686-706.<\/span><\/p>\n

    Jiang, H., Vikrant, A. ve Radermacher, R. 2006.<\/b> CoilDesigner: a general-purpose simulation and design tool for air-to-refrigerant heat exchangers. 2006.<\/span><\/p>\n

    Kakac, S. 2002.<\/b> Heat Transfer Enhancement of Heat Exchangers. 2002, s. 141-162.<\/span><\/p>\n

    Liang, S. Y., Wong, T. N. ve Nanyang. 1998.<\/b> Study of refrigerant circuitry of evaporator coils with a distrubuted simulation model. 1998.<\/span><\/p>\n

    McQuiston, F.C. and Parker. 1994.<\/b> Heating, Ventilating, and Air-conditioning,4th ed. Chapter 14. 1994, s. 571.<\/span><\/p>\n

    Mullen, C.E., ve di\u011ferleri. 1997.<\/b> Development and validation of a room air conditioning simulation model. 1997.<\/span><\/p>\n

    Pirompugd, W. ve C.C. Wang, S. Wongwises. 2009.<\/b> A review on reduction method for heat and mass transfer characteristics of fin and tube heat exchangers under dehumidifying conditions. 2009, s. 2370-2378.<\/span><\/p>\n

    Pirompugd, W. ve Wongwises, S. 2016.<\/b> Actual dry-bulb temperature and equivalent dry-bulb temperature methods for wavy fin-and-tube heat exchangers with dehumidification. 2016, s. 675-685.<\/span><\/p>\n

    Pirompugd, W., Wang, C.C. ve Wongwises, S. 2015.<\/b> The new mathematical models for plain fin and tube heat exchangers with dehumidification. 2015, s. 1-11.<\/span><\/p>\n

    Ragazzi, F. ve Pedersen, C.O. 1991.<\/b> Modular based computer simulation of an air cooled condenser. 1991.<\/span><\/p>\n

    Schmidt, ThE. 1949.<\/b> Heat transfer calculations for extended surfaces. 1949, s. 351-357.<\/span><\/p>\n

    Shah, R. K. ve Sekulic, D. P. 2003.<\/b> Fundemantals of heat exchanger design. <\/span><\/i>2003.<\/span><\/p>\n

    Souza, A. L., ve di\u011ferleri. 1992.<\/b> Pressure drop during two-phase flow of refrigerants in horizontal smooth tubes. 1992.<\/span><\/p>\n

    Thome, J.R. ve L. Wotjan, T. Ursenbacher. 2005.<\/b> Investigation of flow boiling in horizontal tubes: Part I A new diabatic two-phase flow pattern map. 2005, s. 2955-2969.<\/span><\/p>\n

    \u2014. 2005.<\/b> Investigation of flow boiling in horizontal tubes: Part II Development of a new heat transfer model for stratified-wavy, dryout and mist flow regimes. 2005, s. 2970-2985.<\/span><\/p>\n

    Thome, J.R. ve Quiben, J.M. 2007.<\/b> Flow pattern based two-phase frictional pressure drop model for horizontal tubes, Part II: New phenomenological model. 2007, s. 1060-1072.<\/span><\/p>\n

    \u2014. 2007.<\/b> Flow pattern based two-phase frictional pressure drop model for horizontal tubes. Part I: Diabatic and adiabatic experimental study. 2007, s. 1049-1059.<\/span><\/p>\n

    Thome, J.R., Hajal, J.E. ve Cavallini, A. 2003.<\/b> Condensation in horizontal tubes, part 1: two phase flow pattern map. 2003, s. 3349-3363.<\/span><\/p>\n

    \u2014. 2003.<\/b> Condensation in horizontal tubes, part 2: new heat transfer model based on flow regimes. 2003, s. 3365-3387.<\/span><\/p>\n

    Wang, C. C. 1999.<\/b> On the airside performance of fin and tube heat exchangers. 1999, s. 141-162.<\/span><\/p>\n

    \u2014. 2000.<\/b> Recent progress on the air side performance of fin and tube heat exchangers. 2000, s. 57-84.<\/span><\/p>\n

    Wang, C.C. ve Y.M. Hwang, Y. Lin. 2002.<\/b> Empirical correlations for heat transfer and flow friction characteristics of herringbone wavy fin and tube heat exchangers. 2002, s. 673-680.<\/span><\/p>\n

    Wang, C.C., Hsieh, Y. ve Lin, Y. 1997.<\/b> Performance of plate finned tube heat exchangers under dehumidifying conditions. 1997, s. 109-117.<\/span><\/p>\n

    Wang, C.C., Lin, Y. ve Lee, C.J. 1999.<\/b> Heat and momentum transfer for compact louvered fin and tube heat exchangers in wet conditions. 1999, s. 3443-3452.<\/span><\/p>\n

    Wang, C.C., ve di\u011ferleri. 1999.<\/b> Airside Performance of Herringbone Fin-and-Tube Heat. 1999, s. 1225-1230.<\/span><\/p>\n

    Wang, C.C., ve di\u011ferleri. 2001.<\/b> Parametric study of the air ide performance of slit fin and tube heat exchangers in wet conditions. 2001, s. 1111-1121.<\/span><\/p>\n

    Zivi, S.M. 1964.<\/b> Estimation of steady state steam void fraction by means of the principle minimum entropy production. 1964, s. 247-251.<\/span><\/p>\n

     <\/p>\n

    Soykan Ya\u015far \/Makine Y\u00fcksek M\u00fchendisi<\/b><\/p>\n

    \u0130stanbul Teknik \u00dcniversitesi Gemi \u0130n\u015f. ve Gemi Mak. M\u00fchendisli\u011fi b\u00f6l\u00fcm\u00fcnden 2012 y\u0131l\u0131nda mezun olmu\u015ftur. Ard\u0131ndan 2019 y\u0131l\u0131nda IYTE Makine M\u00fchendisli\u011fi y\u00fcksek lisans program\u0131n\u0131 bitirmi\u015ftir. 6 y\u0131l \u0130mbat So\u011futma A.\u015e\u2019 de ArGe m\u00fchendisli\u011fi yapm\u0131\u015ft\u0131r. Temmuz 2019\u2019dan beri ATC A.\u015e\u2019 de Proje,Planlama ve Arge b\u00f6l\u00fcmlerini koordine etmektedir.<\/span><\/p>\n

    Artur Altunkeser\/Makine M\u00fchendisi<\/b><\/p>\n

    1971 \u0130stanbul do\u011fumludur. 1993 y\u0131l\u0131nda Bo\u011fazi\u00e7i \u00dcniversitesi Makine M\u00fchendisli\u011fi B\u00f6l\u00fcm\u00fcnden lisans derecesini alm\u0131\u015ft\u0131r. 1995 y\u0131l\u0131nda Bo\u011fazi\u00e7i \u00dcniversitesinde MBA yapm\u0131\u015ft\u0131r. ATC Air Trade -Centre kurucu orta\u011f\u0131d\u0131r. Evli ve bir k\u0131z \u00e7ocuk babas\u0131d\u0131r.\u00a0<\/span><\/p>\n

    Orhan Altunkaynak\/Makine M\u00fchendisi<\/b><\/p>\n

    Sel\u00e7uk \u00dcniversitesi Makine M\u00fchendisli\u011fi b\u00f6l\u00fcm\u00fcnden 2016 y\u0131l\u0131nda mezun olmu\u015ftur. 21 Mart 2016\u2019dan beri ATC A.\u015e\u2019 de Teknik ve Sat\u0131\u015f M\u00fchendisi olarak Jet Fanl\u0131 Otopark Havaland\u0131rma sistemleri alan\u0131nda \u00e7al\u0131\u015fmaktad\u0131r.\u00a0<\/span><\/p>\n

    Do\u00e7. Dr. Erdal \u00c7ETK\u0130N\u00a0<\/b><\/p>\n

    Doktora derecesini Duke \u00dcniversitesi Makine M\u00fchendisli\u011fi ve Malzeme Bilimleri b\u00f6l\u00fcm\u00fcnden 2013 y\u0131l\u0131nda Termo-Aki\u015fkan alan\u0131ndan alm\u0131\u015ft\u0131r. 2013 y\u0131l\u0131ndan itibaren \u0130zmir Y\u00fcksek Teknoloji Enstit\u00fcs\u00fc Makine M\u00fchendisli\u011fi B\u00f6l\u00fcm\u00fc\u2019nde \u00f6\u011fretim \u00fcyesi olarak g\u00f6rev yapmaktad\u0131r. Termo-Aki\u015fkan alan\u0131nda otuza yak\u0131n uluslararas\u0131 hakemli dergilerde yay\u0131nlanmis makalesi, be\u015f adet patent ba\u015fvurusu bulunmaktad\u0131r. \u00c7e\u015fitli uluslararas\u0131 dergilerin edit\u00f6r kurullar\u0131nda g\u00f6rev almaktad\u0131r.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

    \u00d6zet Kanat\u00e7\u0131kl\u0131 borulu \u0131s\u0131 de\u011fi\u015ftirge\u00e7leri g\u00fcn\u00fcm\u00fczde end\u00fcstriyel ve ev tipi klimalarda yayg\u0131n olarak kullan\u0131lmaktad\u0131r. Ev tipi klimalar, VRF-VRV sistemleri, \u00e7at\u0131 tipi klima cihazlar\u0131, havuz nem alma cihazlar\u0131 ve klima santrallerindeki direkt genle\u015fmeli sistemler bu tip \u0131s\u0131 de\u011fi\u015ftirge\u00e7lerinin kullan\u0131ld\u0131\u011f\u0131 alanlara en yayg\u0131n \u00f6rneklerdir. Klima sistemlerinde genel olarak; i\u00e7 hava \u015fartland\u0131rma taraf\u0131nda kanat\u00e7\u0131kl\u0131-borulu \u0131s\u0131 de\u011fi\u015ftirge\u00e7leri kullan\u0131l\u0131rken, yo\u011fu\u015fturucu […]<\/p>\n","protected":false},"author":1,"featured_media":7886,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[69],"tags":[],"class_list":["post-7859","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-makaleler"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.airtradecentre.com\/tr\/wp-json\/wp\/v2\/posts\/7859","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.airtradecentre.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.airtradecentre.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.airtradecentre.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.airtradecentre.com\/tr\/wp-json\/wp\/v2\/comments?post=7859"}],"version-history":[{"count":10,"href":"https:\/\/www.airtradecentre.com\/tr\/wp-json\/wp\/v2\/posts\/7859\/revisions"}],"predecessor-version":[{"id":7887,"href":"https:\/\/www.airtradecentre.com\/tr\/wp-json\/wp\/v2\/posts\/7859\/revisions\/7887"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.airtradecentre.com\/tr\/wp-json\/wp\/v2\/media\/7886"}],"wp:attachment":[{"href":"https:\/\/www.airtradecentre.com\/tr\/wp-json\/wp\/v2\/media?parent=7859"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.airtradecentre.com\/tr\/wp-json\/wp\/v2\/categories?post=7859"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.airtradecentre.com\/tr\/wp-json\/wp\/v2\/tags?post=7859"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}