Novel Approach towards Fuel Tank Heat Shield Design

Paper #:
  • 2017-01-0124

Published:
  • 2017-03-28
Abstract:
ABSTRACT Vehicle heat management has become a serious concern due to escalating under-hood and exhaust temperatures. Tight vehicle packaging caused by downsizing has further magnified this concern. In an automobile, fuel is stored in a metal or plastic container known as fuel tank. In addition to fuel storage, temperature inside fuel tank has to be maintained at a certain level to control high fuel evaporation rate and prevent deterioration of other systems part performance. In case of under-body fuel tank layout, fuel tank surface temperature is governed by engine, exhaust system layout and road loads. Mechanical shielding has been found to be an efficient defence to the heat management problem. However, what to shield, where to place the shield and the best shield material are major design challenges. This paper focuses on different approaches followed to reduce temperature on fuel tank surface by varying material, geometry & layout of heat insulators. Thermal Computational Fluid Dynamics (CFD) of different iterations was carried out and correlated with actual testing data to determine the most effective shielding arrangement between exhaust system and fuel tank. REFERENCES [1]. Colin Jordan, Dale Matkovich; "Fuel Tank Heat Shield Design" SAE Technical Paper - 902259 [2]. D. R. Bridge, R. Butler; "A multifunctional approach to supporting heat shield design and development" SAE Technical Paper - 971821 [3]. Rolf Karlsson, Paul Van Benthem, Monirul Islam; "Vehicle underbody thermal simulation using computational fluid dynamics" SAE Technical Paper - 1999-01-0579 [4]. Beate Zika Beyerlein, Peter, Scholzel, Luiz Mirara; "Acoustical effects on heat shields, operation temperatures, used material and solutions" SAE Technical Paper - 2010-36-0050 KEYWORDS Vehicle heat management, fuel tank, heat insulator, thermal CFD
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