An experimental evaluation of R11 as a heat pump working fluid in comparison with some other working fluids
| Autor: | S. Devotta, S. E. Ogbeide, F.A. Holland, S. A. K. El-Meniawy, F.A. Watson |
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| Rok vydání: | 1983 |
| Předmět: |
High critical temperature
Renewable Energy Sustainability and the Environment Chemistry Thermal breakdown Energy Engineering and Power Technology Mechanical engineering Mechanics Standard deviation law.invention Refrigerant Fuel Technology Nuclear Energy and Engineering law Range (statistics) Working fluid Lubricant Heat pump |
| Zdroj: | International Journal of Energy Research. 7:129-135 |
| ISSN: | 1099-114X 0363-907X |
| DOI: | 10.1002/er.4440070205 |
| Popis: | A water to water heat pump specially designed and instrumented for research has been used to determine the actual coefficients of performance of R11 for condensing temperatures in the range 70°C to 104°C. 101 experimental points were obtained and these lie on a smooth curve with a standard deviation of 6.32 per cent. The results are compared with data previously obtained for R12, R22, R12B1 and R114 on the same equipment. R11 with its relatively high critical temperature of 198°C is potentially an attractive working fluid provided that it can be operated in conjunction with a lubricant which does not facilitate thermal breakdown. |
| Databáze: | OpenAIRE |
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