Experimental study on heat transfer of thermally developing and developed, turbulent, horizontal pipe flow of dilute air-solids suspensions

1997 ◽  
Vol 33 (1-2) ◽  
pp. 109-120 ◽  
Author(s):  
T. Aihara ◽  
K. Yamamoto ◽  
K. Narusawa ◽  
T. Haraguchi ◽  
M. Ukaku ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Pipe Flow ◽  
Horizontal Pipe

Pressure-drop reduction and heat-transfer deterioration of slush nitrogen in horizontal pipe flow

Cryogenics ◽  
2011 ◽  
Vol 51 (10) ◽  
pp. 563-574 ◽  
Author(s):  
Katsuhide Ohira ◽  
Kei Nakagomi ◽  
Norifumi Takahashi
Keyword(s):  
Heat Transfer ◽  
Pressure Drop ◽  
Pipe Flow ◽  
Horizontal Pipe ◽  
Heat Transfer Deterioration

scholarly journals Experimental Study of HFE 7000 Refrigerant Condensation in Horizontal Pipe Minichannels

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6886
Author(s):  
Małgorzata Sikora ◽  
Tadeusz Bohdal ◽  
Karolina Formela
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Heat Transfer Coefficient ◽  
Pressure Drop ◽  
Transfer Coefficient ◽  
Flux Density ◽  
Mass Flux ◽  
Internal Diameter ◽  
Two Phase ◽  
Horizontal Pipe

This article presents the results obtained from our own experimental investigations on heat exchange and pressure drop during the condensation flow of the HFE 7000 refrigerant in pipe minichannels with an internal diameter of di = 1.2–2.5 mm. The influence of vapor quality x and the mass flux density G on the two-phase flow pressure drops and heat transfer is presented. The tests were performed for the mass flux density range of G = 110–4700 kg/m2s, saturation inlet temperature of Ts = 36–43 °C and heat flux density of q = 1 ÷ 20 kW/m2. The pressure drop characteristics and heat transfer coefficient as a function of the internal diameter of minichannels are illustrated. The results of experimental research on the heat transfer coefficient and two-phase pressure drop are compared with correlations developed by other authors. The best accuracy has a comparison of experimental study with correlation of Rahman-Kariya-Miyara et al. and Mikielewicz et al.

Sign in / Sign up

Export Citation Format

Share Document