Modified theoretical models of film condensation in horizontal microfin tubes
International Journal of Heat and Mass Transfer, 2001 The previously proposed theoretical models of film condensation in horizontal microfin tubes have been modified to describe the characteristics of condensing two-phase flow more accurately. The stratified flow regime and the annular flow regime were considered.
Wang, H. S., Honda, H., Nozu, S.
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Flow boiling of R452A: Heat transfer data, dry-out characteristics and a correlation [PDF]
, 2019 This paper presents an experimental investigation on two-phase heat transfer and dry-out occurrence for refrigerant R452A in a single horizontal circular stainless-steel tube having an internal diameter of 6.0 mm.
Mastrullo, R., Mauro, A. W., Viscito, L.
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A Multiscale Thermo-Fluid Computational Model for a Two-Phase Cooling System [PDF]
, 2014 In this paper, we describe a mathematical model and a numerical simulation method for the condenser component of a novel two-phase thermosyphon cooling system for power electronics applications.
Agostini, Francesco +5 more
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In-tube Evaporation Pressure-drop Characteristics of R290 and R404A
Zhileng xuebao, 2006 The experimental results of in-tube evaporation pressure-drop of R290 and R404A in the horizontal smooth tube and the horizontal microfin tube were compared with calculation results by Lockhart & Martinelli pressure-drop correlation,respectively.Moreover,
韩晓霞, 南晓红, 刘咸定
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Measurement of Condensation Heat Transfer and Pressure Drop for Zeotropic Mixture R-454C and its Components R-32 and R-1234yf in a Horizontal Microfin Tubes [PDF]
, 2021 This paper compares the condensation heat transfer and pressure drop for zeotropic refrigerant R454C and its individual components, R32 and R1234yf, in a horizontal microfin tube. The microfin tube has a 4 mm outer diameter, 0.18 mm wall thickness, and a
Fronk, Brian M., Matty, Ethan P.
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Experimental study of convective heat transfer of R32/R134a inside horizontal microfin tubes
Zhileng xuebao, 2003 Experimental study is reported for heat transfer in forced convective boiling of a nonazeotropic mixture of R32/R134a (25%Wt/75%Wt) inside both smooth and microfin tubes with internal spiral grooves.
吴志光, 马虎根, 蔡祖恢
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Two-phase heat transfer in small passages and microfinned surfaces - Fundamentals and applications [PDF]
, 2006 Micro channels and internally finned tubes are increasingly being utilized in the evaporators and condensers of refrigeration systems. The adoption of such geometries in the development of micro-cooling systems is first discussed in this paper.
Al-Dadah, RK, Karayiannis, TG, Rose, J
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Saturated R134a flow boiling inside a 4.3 mm inner diameter microfin tube [PDF]
, 2017 The refrigerant charge minimization in refrigerating and air-conditioning systems represents a challenging issue due to the new environmental national and international regulations.
DORETTI, LUCA +4 more
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Rekayasa MesinThe way to increase heat transfer is to use nanofluids and expand the heat transfer area. This research studied the thermal performance, convection heat change coefficient, and pressure drop in a double pipe heat exchanger experimentally in a vertically ...
Budi Kristiawan +4 more
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Investigation of an R134A Refrigerant/Iso 32 Polyol Ester Oil Mixture in Condensation [PDF]
, 2001 Air Conditioning and Refrigeration Project ...
Chato, J.C. +2 more
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