HEAT TRANSFER CORRELATION FOR A REFRIGERANT MIXTURE IN A VERTICAL HELICAL COIL EVAPORATOR

被引：10

作者：

Balakrishnan, Raja ^{[2
]}

Santhappan, Joseph Sekhar ^{[1
]}

Dhasan, Mohan Lal ^{[3
]}

机构：

[1] St Xaviers Catholic Coll Engn, Dept Mech Engn, Chunkankadai 629809, India

[2] Indian Inst Technol Madras, IIITD&M Kancheepuram, Chennai, Tamil Nadu, India

[3] Anna Univ, Coll Engn, Dept Mech Engg, Chennai 600025, Tamil Nadu, India

来源：

THERMAL SCIENCE | 2009年 / 13卷 / 04期

关键词：

flow boiling; helical coil; heat transfer coefficient; R-134a; M09; DOMESTIC REFRIGERATORS; PRESSURE-DROP; NATURAL-CONVECTION; ENERGY EFFICIENCY; 2-PHASE FLOW; TUBES; ALTERNATIVES; HFC134A; SURFACE; CFC12;

D O I：

10.2298/TSCI0904197R

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The flow boiling heat transfer study of R-134a/R-290/R-600a refrigerant mixture is carried out in a vertical helical evaporator test section. The test section is immersed in an agitated ethylene glycol-water bath maintained at constant temperature. An aluminum test section with a height of 0.22 m, tube inside diameter of 6 35 mm, outside diameter of 8 mm and coil length of 8 m is used. The influences of various operating parameters such as evaporating temperature, bath temperature, and refrigerant composition on the heat transfer coefficient are investigated experimentally. Using the same experimental results the shell side flow boiling heat transfer coefficient correlation in helical evaporator is also evolved.

引用

页码：197 / 206

页数：10

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