Helical Capillary Tube Sizing Charts for All Mixture Ratios of R125, R134a and R32

被引：10

作者：

Pirompugd, Worachest ^{[1
]}

Wongwises, Somchai ^{[2
]}

机构：

[1] Burapha Univ, Dept Mech Engn, Fac Engn, Saensook 20131, Chonburi, Thailand

[2] King Mongkuts Univ Technol Thonburi Bangmod, Fluid Mech Thermal Engn & Multiphase Flow Res Lab, Dept Mech Engn, Fac Engn, Bangkok 10140, Thailand

来源：

INTERNATIONAL JOURNAL OF AIR-CONDITIONING AND REFRIGERATION | 2016年 / 24卷 / 04期

关键词：

Alternative refrigerant; capillary tube sizing chart; helical capillary tube;

D O I：

10.1142/S201013251650022X

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This research presents two helical capillary tube sizing charts for R407C and R410A, two correction charts for another tube size, and a correction chart for all mixture ratios of R125, R134a and R32. These charts are obtained from the homogeneous flow model including the effect of gravitational force. It is verified by comparison with experimental data obtained from the published literature. From the model, the sizing charts for a diameter of 1.63 mm, length of 2.03 m, and helix diameter of 500mm are developed. Two charts for size correction are also developed. The first one is for tube diameter of 0.5-5mm and length of 0.25-10 m. The second one is for helix diameter of 20-1000 mm. Finally, one more chart for mixture ratio correction is proposed. This chart can be applied to all mixture ratios of R125, R134a and R32.

引用

页数：13

共 31 条

[1] Pressure drop correlations for flow through regular helical coil tubes [J].

Ali, S .

FLUID DYNAMICS RESEARCH, 2001, 28 (04) :295-310

[2]

Bittle R. R., 1994, ASHRAE T, V100, P52

[3] Experimental study on R-134a refrigeration system using a two-phase ejector as an expansion device [J].

Chaiwongsa, Praitoon ;

Wongwises, Somchai .

APPLIED THERMAL ENGINEERING, 2008, 28 (5-6) :467-477

[4] Effect of throat diameters of the ejector on the performance of the refrigeration cycle using a two-phase ejector as an expansion device [J].

Chaiwongsa, Praitoon ;

Wongwises, Somchai .

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2007, 30 (04) :601-608

[5]

CHEN ZH, 1990, ASHRAE TRAN, V96, P550

[6] NUMERICAL AND EXPERIMENTAL INVESTIGATION OF THE FLOW CHARACTERISTICS OF R134a FLOWING THROUGH ADIABATIC HELICAL CAPILLARY TUBES [J].

Chingulpitak, Sukkarin ;

Kaew-On, Jatuporn ;

Wongwises, Somchai .

INTERNATIONAL JOURNAL OF AIR-CONDITIONING AND REFRIGERATION, 2012, 20 (04)

[7] A comparison of flow characteristics of refrigerants flowing through adiabatic straight and helical capillary tubes [J].

Chingulpitak, Sukkarin ;

Wongwises, Somchai .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2011, 38 (03) :398-404

[8] Effects of coil diameter and pitch on the flow characteristics of alternative refrigerants flowing through adiabatic helical capillary tubes [J].

Chingulpitak, Sukkarin ;

Wongwises, Somchai .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2010, 37 (09) :1305-1311

[9] Two-phase flow model of refrigerants flowing through helically coiled capillary tubes [J].

Chingulpitak, Sukkarin ;

Wongwises, Somchai .

APPLIED THERMAL ENGINEERING, 2010, 30 (14-15) :1927-1936

[10] An empirical correlation and rating charts for the performance of adiabatic capillary tubes with alternative refrigerants [J].

Choi, J ;

Kim, Y ;

Chung, JT .

APPLIED THERMAL ENGINEERING, 2004, 24 (01) :29-41

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