A passive thermal management system using a matrix of graphite phase change materials (PCM) suitable for cooling Lithium-Ion batteries in a plug-in hybrid electric vehicle (PHEV) is compared with that of active (forced air) cooling system. Numerical simulations for both systems were performed at different discharge rates, different operating and ambient temperatures. The results were compared with experimental results conducted for validating the model. The results show that at stressful conditions, i.e. at high discharge rates and at high operating or ambient temperatures (for example 40 to 45 deg C), air-cooling alone is not an adequate thermal management system to keep the temperature of the cell in the desirable operating range without expending significant fan power. On the other hand, the passive cooling system is able to meet the operating range requirements under these same stressful conditions without the need for additional fan power.
Passive thermal management system for plug-in hybrid and comparison with active cooling: Limitation of temperature rise and uniformity of temperature distribution
Passives Wärmemanagementssystem für Plug-In-Hybridfahrzeuge und Vergleich mit aktiver Kühlung: Begrenzung der Temperaturerhöhung und Gleichmäßigkeit der Temperaturverteilung
2008
12 Seiten, 10 Bilder, 1 Tabelle, 11 Quellen
Conference paper
English
experimentelle Untersuchung , Hybridfahrzeug , Kühlungskomponente , Kühlvorrichtung , Lithiumionenbatterie , Luftkühlung , Mikroverkapselung , numerische Simulation , passives Bauelement , Phasenübergangswerkstoff , Steckbaugruppe , Temperatursteuerung und -regelung , Vergleichsuntersuchung , Wärmemanagement
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