Enhancing the performance of vehicle cooling modules using diffusers

In this work, numerical results focused on the enhancement of water-air heat exchanger thermal performance are presented. New designs consisting of using diffusers between the front end openings of the vehicle and the first exchanger facing the airflow are suggested. The diffuser will reduce the vel...

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Main Authors:	H. El Hage, C. Castelain, J. Faraj, F. Hachem, M. Ramadan, M. Khaled
Format:	Article
Language:	English
Published:	Elsevier 2018-03-01
Series:	Case Studies in Thermal Engineering
Subjects:	Diffuser Energy consumption Cooling module Heat exchanger Thermal performance Air velocity uniformity
Online Access:	http://www.sciencedirect.com/science/article/pii/S2214157X17302368

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spelling	doaj-f10d41dbf07749ddb13be7751af3db592020-11-24T20:59:49ZengElsevierCase Studies in Thermal Engineering2214-157X2018-03-0111C12012410.1016/j.csite.2018.01.006Enhancing the performance of vehicle cooling modules using diffusersH. El Hage0C. Castelain1J. Faraj2F. Hachem3M. Ramadan4M. Khaled5Energy and Thermo-Fluid Group, School of Engineering, International University of Beirut BIU, Beirut, LebanonHeat Transfer and Energy Group, Polytech’Nantes, University of Nantes, Nantes, FranceEnergy and Thermo-Fluid Group, School of Engineering, International University of Beirut BIU, Beirut, LebanonEnergy and Thermo-Fluid group, School of Engineering, Lebanese International University LIU, Bekaa, LebanonEnergy and Thermo-Fluid Group, School of Engineering, International University of Beirut BIU, Beirut, LebanonEnergy and Thermo-Fluid Group, School of Engineering, International University of Beirut BIU, Beirut, LebanonIn this work, numerical results focused on the enhancement of water-air heat exchanger thermal performance are presented. New designs consisting of using diffusers between the front end openings of the vehicle and the first exchanger facing the airflow are suggested. The diffuser will reduce the velocity magnitude but over a larger area through the exchanger. This will reduce the air velocity non-uniformity upstream the exchanger and then increase its thermal performance. An in-house code is established to evaluate the thermal performance of the exchanger based on known parameters; namely, the ratio of the area of the air inlet opening to the area of the exchanger, the distance between the air inlet opening and the first exchanger at its downstream, the angle of the diffuser, and the water and air mass flow rates. It was shown that the thermal performance of the exchanger can be enhanced by up to 67% when the diffuser is present depending on the configuration.http://www.sciencedirect.com/science/article/pii/S2214157X17302368DiffuserEnergy consumptionCooling moduleHeat exchangerThermal performanceAir velocity uniformity
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	H. El Hage C. Castelain J. Faraj F. Hachem M. Ramadan M. Khaled
spellingShingle	H. El Hage C. Castelain J. Faraj F. Hachem M. Ramadan M. Khaled Enhancing the performance of vehicle cooling modules using diffusers Case Studies in Thermal Engineering Diffuser Energy consumption Cooling module Heat exchanger Thermal performance Air velocity uniformity
author_facet	H. El Hage C. Castelain J. Faraj F. Hachem M. Ramadan M. Khaled
author_sort	H. El Hage
title	Enhancing the performance of vehicle cooling modules using diffusers
title_short	Enhancing the performance of vehicle cooling modules using diffusers
title_full	Enhancing the performance of vehicle cooling modules using diffusers
title_fullStr	Enhancing the performance of vehicle cooling modules using diffusers
title_full_unstemmed	Enhancing the performance of vehicle cooling modules using diffusers
title_sort	enhancing the performance of vehicle cooling modules using diffusers
publisher	Elsevier
series	Case Studies in Thermal Engineering
issn	2214-157X
publishDate	2018-03-01
description	In this work, numerical results focused on the enhancement of water-air heat exchanger thermal performance are presented. New designs consisting of using diffusers between the front end openings of the vehicle and the first exchanger facing the airflow are suggested. The diffuser will reduce the velocity magnitude but over a larger area through the exchanger. This will reduce the air velocity non-uniformity upstream the exchanger and then increase its thermal performance. An in-house code is established to evaluate the thermal performance of the exchanger based on known parameters; namely, the ratio of the area of the air inlet opening to the area of the exchanger, the distance between the air inlet opening and the first exchanger at its downstream, the angle of the diffuser, and the water and air mass flow rates. It was shown that the thermal performance of the exchanger can be enhanced by up to 67% when the diffuser is present depending on the configuration.
topic	Diffuser Energy consumption Cooling module Heat exchanger Thermal performance Air velocity uniformity
url	http://www.sciencedirect.com/science/article/pii/S2214157X17302368
work_keys_str_mv	AT helhage enhancingtheperformanceofvehiclecoolingmodulesusingdiffusers AT ccastelain enhancingtheperformanceofvehiclecoolingmodulesusingdiffusers AT jfaraj enhancingtheperformanceofvehiclecoolingmodulesusingdiffusers AT fhachem enhancingtheperformanceofvehiclecoolingmodulesusingdiffusers AT mramadan enhancingtheperformanceofvehiclecoolingmodulesusingdiffusers AT mkhaled enhancingtheperformanceofvehiclecoolingmodulesusingdiffusers
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Enhancing the performance of vehicle cooling modules using diffusers

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