Influence of refrigerant charge variation on the performance of an automotive refrigeration system
Influence of refrigerant charge variation on the performance of an automotive refrigeration system
- New search for: Prölss, Katrin
- New search for: Schmitz, Gerhard
- New search for: Limperich, Dirk
- New search for: Braun, Marco
- New search for: Prölss, Katrin
- New search for: Schmitz, Gerhard
- New search for: Limperich, Dirk
- New search for: Braun, Marco
Refrigerant charge losses in an automotive air-conditioning system accumulated over a long period of time lead to inefficient operation. To identify characteristic steady-state behavior with respect to variable system charges an R134a refrigeration cycle is investigated experimentally and numerically. A closer look is taken at the receiver component, which is supposed to separate vapor from liquid and to balance changing refrigerant demands under different operating conditions. A clear receiver integrated in the experimental setup allows for a visual insight into its phase separation behavior and provides information used in the numerical model. Simulation and experimental results are compared in terms of measurable system variables. The receiver impact on those results as well as on the system's efficiency is discussed.
Document information
Influence of refrigerant charge variation on the performance of an automotive refrigeration system
Einfluss der Variation der Kühlmittelbeladung auf die Eigenschaften einer Fahrzeugklimaanlage
2006
8 Seiten, 6 Bilder, 1 Tabelle, 4 Quellen
Conference paper
English
Fahrzeugklimaanlage , Kältemittel , Verlustrate , stationäre Eigenschaft , Langzeitversuch , Betriebseigenschaft , numerische Analyse , Betriebsbedingung , Phasentrennung , Messgröße , Theorie-Experiment-Vergleich , Systemsimulation , Expansionsventil , Wärmetauscher , Expansionskammer , Verdampfer , Zweiphasenströmung , Charge (Beschicken)
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