Numerical Simulation of Refrigerant Flow Through Adiabatic Capillary Tube: A Comparison between Homogeneous Equilibrium Model (HEM), Delayed Equilibrium Model (DEM) and Improved Delayed Equilibrium Model (IDEM)

被引：0

作者：

Shaik, Abdul Qaiyum ^{[1
]}

Versteeg, Henk ^{[1
]}

机构：

[1] Univ Loughborough, Wolfson Sch Mech & Mfg Engn, Loughborough LE11 3TU, Leics, England

来源：

7TH INDUSTRIAL SIMULATION CONFERENCE 2009 | 2009年

关键词：

adiabatic capillary tubes; alternative refrigerants; metastable flow; numerical simulation; refrigeration and airconditioning; two-phase flow; MULTIPLE CHOKING PHENOMENON; ALTERNATIVE REFRIGERANTS; EXPANSION DEVICES; PERFORMANCE; BEHAVIOR;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

As the industries arc moving towards the alternatives to HCFC-22, more accurate and general calculation tools are required to predict the capillary tube performance using the new refrigerants. In the present paper, three different methods: Homogeneous Equilibrium Model (HEM), Delayed Equilibrium Model (DEM) and Improved Delayed Equilibrium Model (IDEM) are used to study the behaviour of the new refrigerant mixture R410A through an adiabatic capillary tube. The numerical results were compared with the experimental results of Sanzovo and Mattos (2003). The comparison showed that good agreement exists between the experimental and numerical pressure and temperature profiles along the capillary tube. Also, it was noticed that IDEM predicts the mass flow rate better in compare with that of HEM and DEM.

引用

页码：287 / 292

页数：6

共 26 条

[21]

SANZOVO FA, 2003, HVAC&R RES, V9, P33

[22] A study of the flow through capillary tubes tuned for a cooling circuit with saturated fluorocarbon refrigerants [J].

Vacek, Vaclav ;

Vins, Vaclav .

INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2007, 28 (05) :1490-1508

[23] Adiabatic capillary tube expansion devices: A comparison of the homogeneous flow and the separated flow models [J].

Wong, TN ;

Ooi, KT .

APPLIED THERMAL ENGINEERING, 1996, 16 (07) :625-634

[24] Evaluation of capillary tube performance for CFC-12 and HFC-134A [J].

Wong, TN ;

Ooi, KT .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 1996, 23 (07) :993-1001

[25] Numerical and experimental investigations on the performance of coiled adiabatic capillary tubes [J].

Zhou, GB ;

Zhang, YF .

APPLIED THERMAL ENGINEERING, 2006, 26 (11-12) :1106-1114

[26]

2002, STANDARD REFERENCE D

← 1 2 3 →