Abstract
Reducing the energy consumption required for heating ventilation and air conditioning for passenger compartment is one of the key challenge for the thermal management system of electric vehicles to extend the driving range. Particularly at low ambient temperature the power demand for cabin heating increases and drains the battery capacity at the cost of the driving range. Due to the high air exchange rate of the vehicle cabin to the environment, a large share of the heated air is released unused into the environment via the rear exhaust vent as warm exhaust air. Consequently, the heat contained in the cabin air remains unused. A new approach considered in this study is to use the thermal energy in the cabin air as a heat source for a heat pump system to reduce the heating power required to heat the fresh intake air from the ambient. In vehicles with rear air-conditioning systems, the basic components, evaporator and fan, are already present. In this study, the potential of waste heat recovery from cabin exhaust air is demonstrated with the help of simulation and evaluated for various boundary conditions. Limiting effects on the performance are identified and critically discussed.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
European Commission Homepage. https://ec.europa.eu/clima/policies/transport/vehicles/regulation_en. Accessed 05 Jan 2021
Schüppel, F.: Optimierung des Heiz-und Klimakonzepts zur Reduktion der Wärme-und Kälteleistung im Fahrzeug. Cuvillier Verlag (2015)
Bellocchi, S., Guizzi, G.L., Manno, M., Salvatori, M., Zaccagnini, A.: Reversible heat pump HVAC system with regenerative heat exchanger for electric vehicles: analysis of its impact on driving range. Appl. Thermal Eng. 129, 290–305 (2018)
American Society of Heating, Refrigerating and Air-Conditioning Engineers: ASHRAE Handbook: Refrigeration systems and applications. American Society of Heating, Refrigerating and Air Conditioning Engineers (1986)
Okamoto, K., Aikawa, H., Ohmikawa, M., Hayashi, K.: Thermal management of a hybrid vehicle using a heat pump. No. 2019-01-0502. SAE Technical Paper (2019)
Eng, S., Temper, W.I.C.A., WILO, B.E., Granryd, E., Nilsson, T., Rolfsman, L.: Handbook on indirect refrigeration and heat pump systems
Milaković, S., Wiedemann, J., Haug, J., Hartinger, M., Maué, J., Rothfuss, J.: Holistic thermal management in electric vehicles. In: 16. Internationales Stuttgarter Symposium, pp. 1017–1040. Springer, Wiesbaden (2016)
Menken, J.C.: Thermomanagement im batteriebetriebenen Pkw unter Nutzung eines Kaltdampfprozesses mit Sekundärkreislaufsystem, vol. 115. Cuvillier Verlag (2016)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 Springer Fachmedien Wiesbaden GmbH, ein Teil von Springer Nature
About this paper
Cite this paper
Miyaji, N., Kleemann, J. (2021). Waste Heat Recovery from Cabin Exhaust Air by Use of Heat Pump. In: Bargende, M., Reuss, HC., Wagner, A. (eds) 21. Internationales Stuttgarter Symposium. Proceedings. Springer Vieweg, Wiesbaden. https://doi.org/10.1007/978-3-658-33466-6_8
Download citation
DOI: https://doi.org/10.1007/978-3-658-33466-6_8
Published:
Publisher Name: Springer Vieweg, Wiesbaden
Print ISBN: 978-3-658-33465-9
Online ISBN: 978-3-658-33466-6
eBook Packages: Computer Science and Engineering (German Language)