Optimization of Thermodynamic Properties of R134a Vehicle Air Conditioning System with Internal Heat Exchanger
In theory, using internal heat exchanger in the R134a vehicle air conditioning system can improve the cooling performance significantly，but many experimental studies demonstrates that the internal heat exchanger has a negative effect on the safety of the system. Therefore the advantage and the disad...
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| Format: | Article |
| Language: | zho |
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Journal of Refrigeration Magazines Agency Co., Ltd.
2016-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2016.05.026 |
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| _version_ | 1850232841983492096 |
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| author | Yue Zhenyu Chen Huanxin Zhong Chang |
| author_facet | Yue Zhenyu Chen Huanxin Zhong Chang |
| author_sort | Yue Zhenyu |
| collection | DOAJ |
| description | In theory, using internal heat exchanger in the R134a vehicle air conditioning system can improve the cooling performance significantly，but many experimental studies demonstrates that the internal heat exchanger has a negative effect on the safety of the system. Therefore the advantage and the disadvantage trade off, which makes the merit not conspicuous. Aimed at this situation, the influence of different length of internal heat exchanger on the air conditioning system comprehensive performance is investigated in test bench in this paper. It shows that the adverse effects have certain relationships with the tube length on the basis of the experiments. In addition, this study also obtain a method to avoid adverse effects, by adjusting the expansion valve, condenser air flow and oil, which provides theoretical foundation for the matching of heat regeneration system. |
| format | Article |
| id | doaj-art-2fe28ea3d9904eac968e06b452bf0adc |
| institution | OA Journals |
| issn | 0253-4339 |
| language | zho |
| publishDate | 2016-01-01 |
| publisher | Journal of Refrigeration Magazines Agency Co., Ltd. |
| record_format | Article |
| series | Zhileng xuebao |
| spelling | doaj-art-2fe28ea3d9904eac968e06b452bf0adc2025-08-20T02:03:04ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392016-01-013766513530Optimization of Thermodynamic Properties of R134a Vehicle Air Conditioning System with Internal Heat ExchangerYue ZhenyuChen HuanxinZhong ChangIn theory, using internal heat exchanger in the R134a vehicle air conditioning system can improve the cooling performance significantly，but many experimental studies demonstrates that the internal heat exchanger has a negative effect on the safety of the system. Therefore the advantage and the disadvantage trade off, which makes the merit not conspicuous. Aimed at this situation, the influence of different length of internal heat exchanger on the air conditioning system comprehensive performance is investigated in test bench in this paper. It shows that the adverse effects have certain relationships with the tube length on the basis of the experiments. In addition, this study also obtain a method to avoid adverse effects, by adjusting the expansion valve, condenser air flow and oil, which provides theoretical foundation for the matching of heat regeneration system.http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2016.05.026heat regenerative cyclevehicle air conditioning systeminternal heat exchangerR134aoptimization |
| spellingShingle | Yue Zhenyu Chen Huanxin Zhong Chang Optimization of Thermodynamic Properties of R134a Vehicle Air Conditioning System with Internal Heat Exchanger Zhileng xuebao heat regenerative cycle vehicle air conditioning system internal heat exchanger R134a optimization |
| title | Optimization of Thermodynamic Properties of R134a Vehicle Air Conditioning System with Internal Heat Exchanger |
| title_full | Optimization of Thermodynamic Properties of R134a Vehicle Air Conditioning System with Internal Heat Exchanger |
| title_fullStr | Optimization of Thermodynamic Properties of R134a Vehicle Air Conditioning System with Internal Heat Exchanger |
| title_full_unstemmed | Optimization of Thermodynamic Properties of R134a Vehicle Air Conditioning System with Internal Heat Exchanger |
| title_short | Optimization of Thermodynamic Properties of R134a Vehicle Air Conditioning System with Internal Heat Exchanger |
| title_sort | optimization of thermodynamic properties of r134a vehicle air conditioning system with internal heat exchanger |
| topic | heat regenerative cycle vehicle air conditioning system internal heat exchanger R134a optimization |
| url | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2016.05.026 |
| work_keys_str_mv | AT yuezhenyu optimizationofthermodynamicpropertiesofr134avehicleairconditioningsystemwithinternalheatexchanger AT chenhuanxin optimizationofthermodynamicpropertiesofr134avehicleairconditioningsystemwithinternalheatexchanger AT zhongchang optimizationofthermodynamicpropertiesofr134avehicleairconditioningsystemwithinternalheatexchanger |