THE ROLE OF INTERNAL HEAT EXCHANGER IN AN R744 VAPOR COMPRESSION SYSTEM IN THE HEAT PUMP MODE UNDER VARIOUS CONDITIONS
Само за регистроване кориснике
2022
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this paper, the role of the internal heat exchanger (IHX) in a reversible R744 vapor compression system in the heating mode was investigated experimentally and presented. At the first, the optimal refrigerant charge amount for both basic and the IHX systems was determined. Also, the control equations of HPF-maximizing high side pressure were developed and used for both systems. Then, well-tuned systems working at the optimal discharge pressure were compared in two scenarios under various conditions. The results of the experiments reveal the potential benefits of introducing IHX for the R744 system in the heating mode. The efficiency was improved by up to 10.5% by introducing the internal heat exchanger. Also, the benefits of IHX in the frosting conditions were discussed.
Извор:
Proceedings of 19th International Refrigeration and Air Conditioning Conference at Purdue, 2022Издавач:
- Purdue University, Ray W. Herrick Laboratories
Финансирање / пројекти:
- ACRC, University of Illinois, Urbana, Illinois, USA
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Černicin, Vladimir AU - Zhang, Wenying AU - Hrnjak, Pega PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/5665 AB - In this paper, the role of the internal heat exchanger (IHX) in a reversible R744 vapor compression system in the heating mode was investigated experimentally and presented. At the first, the optimal refrigerant charge amount for both basic and the IHX systems was determined. Also, the control equations of HPF-maximizing high side pressure were developed and used for both systems. Then, well-tuned systems working at the optimal discharge pressure were compared in two scenarios under various conditions. The results of the experiments reveal the potential benefits of introducing IHX for the R744 system in the heating mode. The efficiency was improved by up to 10.5% by introducing the internal heat exchanger. Also, the benefits of IHX in the frosting conditions were discussed. PB - Purdue University, Ray W. Herrick Laboratories C3 - Proceedings of 19th International Refrigeration and Air Conditioning Conference at Purdue T1 - THE ROLE OF INTERNAL HEAT EXCHANGER IN AN R744 VAPOR COMPRESSION SYSTEM IN THE HEAT PUMP MODE UNDER VARIOUS CONDITIONS UR - https://hdl.handle.net/21.15107/rcub_machinery_5665 ER -
@conference{ author = "Černicin, Vladimir and Zhang, Wenying and Hrnjak, Pega", year = "2022", abstract = "In this paper, the role of the internal heat exchanger (IHX) in a reversible R744 vapor compression system in the heating mode was investigated experimentally and presented. At the first, the optimal refrigerant charge amount for both basic and the IHX systems was determined. Also, the control equations of HPF-maximizing high side pressure were developed and used for both systems. Then, well-tuned systems working at the optimal discharge pressure were compared in two scenarios under various conditions. The results of the experiments reveal the potential benefits of introducing IHX for the R744 system in the heating mode. The efficiency was improved by up to 10.5% by introducing the internal heat exchanger. Also, the benefits of IHX in the frosting conditions were discussed.", publisher = "Purdue University, Ray W. Herrick Laboratories", journal = "Proceedings of 19th International Refrigeration and Air Conditioning Conference at Purdue", title = "THE ROLE OF INTERNAL HEAT EXCHANGER IN AN R744 VAPOR COMPRESSION SYSTEM IN THE HEAT PUMP MODE UNDER VARIOUS CONDITIONS", url = "https://hdl.handle.net/21.15107/rcub_machinery_5665" }
Černicin, V., Zhang, W.,& Hrnjak, P.. (2022). THE ROLE OF INTERNAL HEAT EXCHANGER IN AN R744 VAPOR COMPRESSION SYSTEM IN THE HEAT PUMP MODE UNDER VARIOUS CONDITIONS. in Proceedings of 19th International Refrigeration and Air Conditioning Conference at Purdue Purdue University, Ray W. Herrick Laboratories.. https://hdl.handle.net/21.15107/rcub_machinery_5665
Černicin V, Zhang W, Hrnjak P. THE ROLE OF INTERNAL HEAT EXCHANGER IN AN R744 VAPOR COMPRESSION SYSTEM IN THE HEAT PUMP MODE UNDER VARIOUS CONDITIONS. in Proceedings of 19th International Refrigeration and Air Conditioning Conference at Purdue. 2022;. https://hdl.handle.net/21.15107/rcub_machinery_5665 .
Černicin, Vladimir, Zhang, Wenying, Hrnjak, Pega, "THE ROLE OF INTERNAL HEAT EXCHANGER IN AN R744 VAPOR COMPRESSION SYSTEM IN THE HEAT PUMP MODE UNDER VARIOUS CONDITIONS" in Proceedings of 19th International Refrigeration and Air Conditioning Conference at Purdue (2022), https://hdl.handle.net/21.15107/rcub_machinery_5665 .