Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modeling of Oil Retention in the Suction Line and Evaporator of Air-Conditioning Systems
This paper presents a general method for computing the oil retained in the suction line and evaporator of an air-conditioning system. For the suction line, a new semi-empirical correlation for the interfacial shear stress friction factor is presented. The correlation agrees closely with experimental results for conventional refrigerants and CO2 and extends to and merges with previous correlations available in the literature. The correlated friction factor is within 26% relative error as compared to experimental data. In the evaporator, oil retention volume was computed by using the Premoli et al. (1971) void fraction model and applying heat transfer and pressure drop correlations for refrigerant/oil mixtures. As a result, oil retention was predicted within 21% average relative error.
Modeling of Oil Retention in the Suction Line and Evaporator of Air-Conditioning Systems
This paper presents a general method for computing the oil retained in the suction line and evaporator of an air-conditioning system. For the suction line, a new semi-empirical correlation for the interfacial shear stress friction factor is presented. The correlation agrees closely with experimental results for conventional refrigerants and CO2 and extends to and merges with previous correlations available in the literature. The correlated friction factor is within 26% relative error as compared to experimental data. In the evaporator, oil retention volume was computed by using the Premoli et al. (1971) void fraction model and applying heat transfer and pressure drop correlations for refrigerant/oil mixtures. As a result, oil retention was predicted within 21% average relative error.
Modeling of Oil Retention in the Suction Line and Evaporator of Air-Conditioning Systems
Radermacher, Reinhard (Autor:in) / Cremaschi, Lorenzo (Autor:in) / Schwentker, Robert Andrew (Autor:in)
HVAC&R Research ; 12 ; 35-56
01.01.2006
22 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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