Comparison of the Straight Adiabatic Capillary Tube Expansion Devices Used in Refrigeration Systems Operating With Refrigerants R134a and R1234yf-Reference-Cited by-同舟云学术

Comparison of the Straight Adiabatic Capillary Tube Expansion Devices Used in Refrigeration Systems Operating With Refrigerants R134a and R1234yf

Published:2016-02-03 Issue:2 Volume:8 Page:
ISSN:1948-5085
Container-title:Journal of Thermal Science and Engineering Applications
language:en
Short-container-title:

Author:

Harish Kruthiventi S. S.¹,Venkatarathnam G.¹

Affiliation:

1. Refrigeration and Air Conditioning Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai 600036, India e-mail:

Abstract

Capillary tube expansion devices are used extensively in small refrigeration and unitary air conditioning systems. R1234yf is likely to replace R134a in the next few years in many small refrigeration systems worldwide because of the new environmental regulations being proposed. In this paper, we compare the length and diameter of capillary tube required when R134a and R1234yf are used in a typical small refrigeration system. The minimum diameter of the capillary tube required has been estimated using the speed of sound of the refrigerant leaving the capillary tube in the two-phase state. The two-phase speed of sound routine developed by us can be used with both pure fluids and mixtures.

Publisher

ASME International

Subject

Fluid Flow and Transfer Processes,General Engineering,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/thermalscienceapplication/article-pdf/doi/10.1115/1.4032366/6335908/tsea_008_02_021015.pdf

Reference22 articles.

1. Experimental Investigation of the Performance of R22, R407C and R410A in Several Capillary Tubes for Air-Conditioners;Int. J. Refrig.,2002

2. Theory and Use of the Capillary Tube Expansion Device;Refrig. Eng.,1948

3. A Visual and Photographic Study of the Inception of Vaporization in Adiabatic Flow;ASME Basic Eng.,1964

4. Melo, C., 1992, “Modeling Adiabatic Capillary Tubes: A Critical Analysis,” International Refrigeration and Air Conditioning Conference, pp. 113–123.

5. An Homogeneous Model for Adiabatic Capillary Tubes;Appl. Therm. Eng.,1998

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