Experimental investigation of the effects of mini-channel and flow arrangement on thermohydraulic performance of a shell and tube heat exchanger

Murat Ünverdi; Mehmet Senan Yılmaz; Hasan Küçük

Makale detayları

Experimental investigation of the effects of mini-channel and flow arrangement on thermohydraulic performance of a shell and tube heat exchanger

Yazarlar:

Murat Ünverdi | Mehmet Senan Yılmaz | Hasan Küçük

Yayıncı:

Gazi University

Ana Başlıklar:

Makine Mühendisliği (Diğer)

Dergi:

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi Vol.40 Issue 3, pp.2029-2046

Belge Tipi:

Makale

Yayın Tarihi:

8/2025

Belge Dili:

Türkçe

Document ID (Org No.):

2001345044

pISSN:

1300-1884

Anahtar kelimeler:

Özet:

 Mini-channels MCs encountered in natural biological structures are becoming widespread in technological applications. In heat and mass transfer systems using MCs, compactness can be increased, and the size, volume and amount of working fluid can be reduced. In order to enhance the heat transfer using MCs, the changes in the overall heat transfer coefficient OHTC and pressure drop with counter and co-current parallel flow arrangements in the shell and tube mini-channel heat exchanger ST-MC-HX were experimentally investigated. In addition, the experimental results of the ST-MC-HX are compared with those of the shell and tube heat exchangers ST-HXs from the literature. Furthermore, the operating limits of the ST-MC-HX were determined with the performance index . The counter flow experimental OHTCs vary between 1750-3950 Wm2K, while co-current flow experimental OHTCs vary between 1270-3675 Wm2K. The OHTCs of the ST-MC-HX are 25 higher on average than those in the literature. However, the use of MC increased the pressure drops. According to the performance index of the ST-MC-HX, the operating limits are 5000.

 Mini-channels MCs encountered in natural biological structures are becoming widespread in technological applications. In heat and mass transfer systems using MCs, compactness can be increased, and the size, volume and amount of working fluid can be reduced. In order to enhance the heat transfer using MCs, the changes in the overall heat transfer coefficient OHTC and pressure drop with counter and co-current parallel flow arrangements in the shell and tube mini-channel heat exchanger ST-MC-HX were experimentally investigated. In addition, the experimental results of the ST-MC-HX are compared with those of the shell and tube heat exchangers ST-HXs from the literature. Furthermore, the operating limits of the ST-MC-HX were determined with the performance index . The counter flow experimental OHTCs vary between 1750-3950 Wm2K, while co-current flow experimental OHTCs vary between 1270-3675 Wm2K. The OHTCs of the ST-MC-HX are 25 higher on average than those in the literature. However, the use of MC increased the pressure drops. According to the performance index of the ST-MC-HX, the operating limits are 5000.

 Mini-channels MCs encountered in natural biological structures are becoming widespread in technological applications. In heat and mass transfer systems using MCs, compactness can be increased, and the size, volume and amount of working fluid can be reduced. In order to enhance the heat transfer using MCs, the changes in the overall heat transfer coefficient OHTC and pressure drop with counter and co-current parallel flow arrangements in the shell and tube mini-channel heat exchanger ST-MC-HX were experimentally investigated. In addition, the experimental results of the ST-MC-HX are compared with those of the shell and tube heat exchangers ST-HXs from the literature. Furthermore, the operating limits of the ST-MC-HX were determined with the performance index . The counter flow experimental OHTCs vary between 1750-3950 Wm2K, while co-current flow experimental OHTCs vary between 1270-3675 Wm2K. The OHTCs of the ST-MC-HX are 25 higher on average than those in the literature. However, the use of MC increased the pressure drops. According to the performance index of the ST-MC-HX, the operating limits are 5000.

 Doğal biyolojik yapılarda karşılaşılan mini kanallar MKlar, teknolojik uygulamalarda yaygınlaşmaktadır. MKlarla ısı ve kütle geçişi sistemlerinde kompaktlık artırılarak boyut, hacim ve aracı akışkan miktarı azaltılabilmektedir. MKlarla ısı geçişinin iyileştirilmesi amacıyla gövde borulu mini kanallı ısı değiştiricide GB-MK-ID zıt yönlü ve aynı yönlü paralel akış düzenlemeleriyle toplam ısı geçiş katsayısındaki TIGK ve basınç düşümündeki değişimler deneysel araştırılmıştır. Ayrıca GB-MK-IDnin deneysel sonuçları literatürden gövde borulu ısı değiştiricilerin GB-ID deneysel sonuçlarıyla karşılaştırılmıştır. Bunun yanı sıra performans indeksiyle  GB-MK-IDnin işletme limitleri belirlenmiştir. Zıt yönlü TIGKları 1750-3950 Wm2K aralığında değişirken, aynı yönlü deneysel TIGKları 1270-3675 Wm2K aralığında değişmektedir. GB-MK-IDnin TIGKları literatürdeki GB-IDlere göre ortalama 25 daha yüksektir. Ancak MK kullanmak basınç düşümlerini artmıştır. GB-MK-IDnin performans indeksine göre işletme limitleri 5000.

Makale detayları

Experimental investigation of the effects of mini-channel and flow arrangement on thermohydraulic performance of a shell and tube heat exchanger

Yazarlar:

Murat Ünverdi | Mehmet Senan Yılmaz | Hasan Küçük

Yayıncı:

Gazi University

Ana Başlıklar:

Makine Mühendisliği (Diğer)

Dergi:

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi Vol.40 Issue 3, pp.2029-2046

Belge Tipi:

Makale

Yayın Tarihi:

8/2025

Belge Dili:

Türkçe

Document ID (Org No.):

2001345044

pISSN:

1300-1884

Shell and tube heat exchanger, mini channel, flow arrangement, overall heat transfer coefficient, pressure dropGövde borulu ısı değiştirici

mini kanal

akış düzenlemesi

toplam ısı geçiş katsayısı

basınç düşümü

Sayı

Makale detayları

Experimental investigation of the effects of mini-channel and flow arrangement on thermohydraulic performance of a shell and tube heat exchanger

Yazarlar: Murat Ünverdi | Mehmet Senan Yılmaz | Hasan Küçük

Yayıncı: Gazi University

Ana Başlıklar: Makine Mühendisliği (Diğer)

Dergi: Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi Vol.40 Issue 3, pp.2029-2046

Belge Tipi: Makale

Yayın Tarihi: 8/2025

Belge Dili: Türkçe

Document ID (Org No.): 2001345044

pISSN: 1300-1884

Shell and tube heat exchanger, mini channel, flow arrangement, overall heat transfer coefficient, pressure dropGövde borulu ısı değiştirici

mini kanal

akış düzenlemesi

toplam ısı geçiş katsayısı

basınç düşümü

Sayı

Yazarlar:

Murat Ünverdi | Mehmet Senan Yılmaz | Hasan Küçük

Yayıncı:

Gazi University

Ana Başlıklar:

Makine Mühendisliği (Diğer)

Dergi:

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi Vol.40 Issue 3, pp.2029-2046

Belge Tipi:

Makale

Yayın Tarihi:

8/2025

Belge Dili:

Türkçe

Document ID (Org No.):

2001345044

pISSN:

1300-1884