Contribution of the Air Conditioning System to Reduced Power Consumption in Cars
Document Number: 2008-21-0047
Date Published: October 2008
Author(s):
Thomas E. J. Heckenberger - Behr GmbH & Co. KG
Peter Kroner - Behr GmbH & Co. KG
Marcus Weinbrenner - Behr GmbH & Co. KG
Ralf Manski - Behr GmbH & Co. KG
Andreas Kemle - Behr GmbH & Co. KG
John M. Tepas - Behr America, Inc.
Abstract:
The car air conditioning system causes approximately 0.5 l/100 km excess fuel consumption on average. To meet future fuel consumption and emission regulations improvements in the AC system are called for. To consistently assess improvements in air conditioning power consumption, specific driving and temperature profiles are defined. It is shown that improvements can be achieved by: Better thermodynamic component and system design; Refrigerant expansion device sized for efficiency rather than maximum performance; and System control strategies such as variable air recirculation. Measurement of a refrigerant circuit on a system test bench reveal that the energy requirement for A/C can by reduced by 15% to 30% compared to current state-of-the-art AC system technologies. Only part of the presented measures are based on electronic controls however only the combination of all will lead to a significant reduction.
File Size: 251K
Product Status: In Stock
See other papers presented at Convergence 2008, October 2008, Detroit, MI, USA, Session: Energy Stewardship: The Efficient Generation and Consumption of Electrical Energy in Automobiles
Purchase more technical papers and save! With TechSelect,
you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
Learn more >
|
