Journal
APPLIED ENERGY
Volume 91, Issue 1, Pages 439-450Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2011.10.017
Keywords
Vehicle underhood; Car cooling module; Heat exchangers; Hear transfer enhancement; Fan; Car underhood aerothermal management
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We report here experimental results focused on the optimization of vehicle underhood cooling module. These results constitute the basis for a new approach of controlling the cooling module positioning according to the engine energy requirements. Measurements are carried out on a simplified vehicle body designed based on the real vehicle front block. We report here velocity and temperature measurements by Particle Image Velocimetry (Ply), by Laser Doppler Velocimetry (LDV) and by thermocouples. The underhood of the simplified body is instrumented by 59 surface and fluid thermocouples. Measurements are carried out for conditions simulating both the slowdown and the thermal soak phases with the fan in operation. Different fan rotational speeds, radiator water flow and underhood geometries have been experimented. The ultimate aim is to apply the new control approach to a real vehicle so as to reduce the energy delivered to the pump and compressor and therefore to reduce the vehicle fuel consumption. (C) 2011 Elsevier Ltd. All rights reserved.
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