A New Control Approach on Positioning of Heat Exchangers in Automotive Front End Cooling Module

2018 International Conference on Recent Trends in Electrical, Control and Communication (RTECC) Pub Date : 2018-03-01 DOI:10.1109/RTECC.2018.8625689

S. Baskar, Doss S Prince Arockia

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Abstract

Conventionally in automotive vehicles the heat exchangers like condenser and radiator are placed in a 'one behind other' configuration. In such arrangement radiator fan has to work more to carry away the heat rejected by both heat exchangers and whenever the condenser heat transfer capacity becomes excess, the engine cooling performance gets deteriorated. In this work, CFD and analytical study have been carried out to investigate the relation between heat exchanger configuration and its thermal performance. The obtained results layout the foundation to develop a control unit which decides the condenser position to be in a configuration 'one behind other'(obo) or 'one below other'(obelo). It is recommended that 'obo' configuration does well at vehicle speed less than 30kmph and beyond that 'obelo' can be chosen. This control approach along with the Active Grille Shutter system will provide better engine cooling system performance and fuel economy. The availability of cooling air flow and top tank temperature are evaluated in the both configurations.

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汽车前端冷却模块换热器定位控制新方法

传统上，在汽车中，热交换器如冷凝器和散热器被放置在“一个后面”的配置中。在这种布置下，散热器风扇需要更多的工作来带走两个热交换器排出的热量，当冷凝器换热能力过剩时，发动机的冷却性能就会变差。本文采用CFD和分析方法研究了换热器结构与热工性能之间的关系。所得结果为开发一种控制单元奠定了基础，该控制单元可以决定冷凝器的位置是“一个后面”(obo)还是“一个下面”(obelo)。建议“obo”配置在车速低于30公里/小时时表现良好，超过30公里/小时时可以选择“obelo”配置。这种控制方法以及主动格栅百叶窗系统将提供更好的发动机冷却系统性能和燃油经济性。在两种配置下，对冷却气流的可用性和顶罐温度进行了评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 International Conference on Recent Trends in Electrical, Control and Communication (RTECC)

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