Thermal Properties Model for the New Refrigerant HFO-1234yf
Based on Peng-Robinson general state equation, combined with group contribution principle and a polynomial method, the thermal state model of the new LGWP refrigerant HFO-1234yf was established and validated with required accuracy. By using the computer programming, the state models were solved by a...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Refrigeration Magazines Agency Co., Ltd.
2012-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2012.05.037 |
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| Summary: | Based on Peng-Robinson general state equation, combined with group contribution principle and a polynomial method, the thermal state model of the new LGWP refrigerant HFO-1234yf was established and validated with required accuracy. By using the computer programming, the state models were solved by a mathematic software and a complete thermal properties of refrigerant were obtained. The thermal properties of HFO-1234yf were compared with R417A and R134a, and the results showed that the saturated vapor pressure and the specific heat capacity under constant pressure of HFO-1234yf has a similar performance with R134a. Both The saturated vapor pressure of both HFO-1234yf and R134a are lower than R417A, and the saturated state enthalpy of HFO-1234yf is lower than R417A, which would lead that the HFO-1234yf system can not have a higher performance coefficient. The models could act as a theoretical basis for the application of HFO-1234yf in automotive air conditioning and fixed refrigeration equipment. |
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| ISSN: | 0253-4339 |