A numerical investigation of the refrigerant maldistribution from a header towards parallel channels in an evaporator of automotive air conditioning system
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2012
Authors
Stevanović, VladimirCucuz, Stojan
Carl-Meissner, Waldemar
Maslovarić, Blaženka
Milivojević, Sanja
Article (Published version)
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Show full item recordAbstract
Evaporators in automotive air conditioning are designed as compact heat exchangers with the aim to cool outside air for the widest possible range of weather conditions. Under low operating loads a non-uniformity of the refrigerant liquid and gas phase distribution from the evaporator headers towards the evaporating channels leads to a decrease of the evaporator efficiency and a temperature stratification in the exit stream of cooled air. This malfunction is investigated by numerical simulations and analyses with the Computational Multi-Fluid Dynamic code. The applied numerical approach is validated for available experimental conditions. In order to eliminate the air exit temperature stratification, numerical experiments are performed with design changes of the evaporator header and the effectiveness of applied measures is demonstrated.
Keywords:
Two phase flow / Maldistribution / HeaderSource:
International Journal of Heat and Mass Transfer, 2012, 55, 13-14, 3335-3343Publisher:
- Pergamon-Elsevier Science Ltd, Oxford
Funding / projects:
- Visteon Deutschland GmbH
- Advanced analytical, numerical and analysis methods of applied fluid mechanics and complex systems (RS-MESTD-Basic Research (BR or ON)-174014)
DOI: 10.1016/j.ijheatmasstransfer.2012.02.071
ISSN: 0017-9310
WoS: 000304785900002
Scopus: 2-s2.0-84859378974
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Mašinski fakultetTY - JOUR AU - Stevanović, Vladimir AU - Cucuz, Stojan AU - Carl-Meissner, Waldemar AU - Maslovarić, Blaženka AU - Milivojević, Sanja PY - 2012 UR - https://machinery.mas.bg.ac.rs/handle/123456789/1426 AB - Evaporators in automotive air conditioning are designed as compact heat exchangers with the aim to cool outside air for the widest possible range of weather conditions. Under low operating loads a non-uniformity of the refrigerant liquid and gas phase distribution from the evaporator headers towards the evaporating channels leads to a decrease of the evaporator efficiency and a temperature stratification in the exit stream of cooled air. This malfunction is investigated by numerical simulations and analyses with the Computational Multi-Fluid Dynamic code. The applied numerical approach is validated for available experimental conditions. In order to eliminate the air exit temperature stratification, numerical experiments are performed with design changes of the evaporator header and the effectiveness of applied measures is demonstrated. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - International Journal of Heat and Mass Transfer T1 - A numerical investigation of the refrigerant maldistribution from a header towards parallel channels in an evaporator of automotive air conditioning system EP - 3343 IS - 13-14 SP - 3335 VL - 55 DO - 10.1016/j.ijheatmasstransfer.2012.02.071 ER -
@article{ author = "Stevanović, Vladimir and Cucuz, Stojan and Carl-Meissner, Waldemar and Maslovarić, Blaženka and Milivojević, Sanja", year = "2012", abstract = "Evaporators in automotive air conditioning are designed as compact heat exchangers with the aim to cool outside air for the widest possible range of weather conditions. Under low operating loads a non-uniformity of the refrigerant liquid and gas phase distribution from the evaporator headers towards the evaporating channels leads to a decrease of the evaporator efficiency and a temperature stratification in the exit stream of cooled air. This malfunction is investigated by numerical simulations and analyses with the Computational Multi-Fluid Dynamic code. The applied numerical approach is validated for available experimental conditions. In order to eliminate the air exit temperature stratification, numerical experiments are performed with design changes of the evaporator header and the effectiveness of applied measures is demonstrated.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "International Journal of Heat and Mass Transfer", title = "A numerical investigation of the refrigerant maldistribution from a header towards parallel channels in an evaporator of automotive air conditioning system", pages = "3343-3335", number = "13-14", volume = "55", doi = "10.1016/j.ijheatmasstransfer.2012.02.071" }
Stevanović, V., Cucuz, S., Carl-Meissner, W., Maslovarić, B.,& Milivojević, S.. (2012). A numerical investigation of the refrigerant maldistribution from a header towards parallel channels in an evaporator of automotive air conditioning system. in International Journal of Heat and Mass Transfer Pergamon-Elsevier Science Ltd, Oxford., 55(13-14), 3335-3343. https://doi.org/10.1016/j.ijheatmasstransfer.2012.02.071
Stevanović V, Cucuz S, Carl-Meissner W, Maslovarić B, Milivojević S. A numerical investigation of the refrigerant maldistribution from a header towards parallel channels in an evaporator of automotive air conditioning system. in International Journal of Heat and Mass Transfer. 2012;55(13-14):3335-3343. doi:10.1016/j.ijheatmasstransfer.2012.02.071 .
Stevanović, Vladimir, Cucuz, Stojan, Carl-Meissner, Waldemar, Maslovarić, Blaženka, Milivojević, Sanja, "A numerical investigation of the refrigerant maldistribution from a header towards parallel channels in an evaporator of automotive air conditioning system" in International Journal of Heat and Mass Transfer, 55, no. 13-14 (2012):3335-3343, https://doi.org/10.1016/j.ijheatmasstransfer.2012.02.071 . .