Heat transfer correlation for a refrigerant mixture in a vertical helical coil evaporator
| Autor: | Lal Mohan Dhasan, Sekhar Joseph Santhappan, B. Raja |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Materials science
flow boiling Renewable Energy Sustainability and the Environment lcsh:Mechanical engineering and machinery R-134a Shell (structure) Thermodynamics M09 Heat transfer coefficient heat transfer coefficient Refrigerant Electromagnetic coil Heat transfer helical coil lcsh:TJ1-1570 Tube (fluid conveyance) Composite material Evaporator Nucleate boiling |
| Zdroj: | Thermal Science, Vol 13, Iss 4, Pp 197-206 (2009) |
| ISSN: | 2334-7163 0354-9836 |
| DOI: | 10.2298/tsci0904197r |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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