Design and Optimisation of Cooling System for Tracked Vehicle Powerpack

  • Jayesh Namjoshi Product and Technology Development Centre (Defence & Aerospace), Larsen & Toubro Limited, Mumbai
  • Sachin Wagle Product and Technology Development Centre (Defence & Aerospace), Larsen & Toubro Limited, Mumbai
  • Murtuza Kundawala Product and Technology Development Centre (Defence & Aerospace), Larsen & Toubro Limited, Mumbai
  • Manoj Srivastava Product and Technology Development Centre (Defence & Aerospace), Larsen & Toubro Limited, Mumbai
Keywords: Tracked vehicle, Military vehicle, Cooling system, Radiator, Charged air cooler, Hydraulic oil cooler, Powerpack, Numerical analysis, Simulation, Digital prototype

Abstract

Military tracked vehicles are deployed in severe environmental and loading conditions during military operations. The space availability and high heat rejection sources makes the cooling system design a challenging task by offering little margin in design parameters. Prime aspects of the design methodology, i.e. packaging of cooling system aggregates in available space, optimising air flow, numerical simulation and also the evaluation of cooling system performance on a test bench in simulated vehicle conditions and during field trials are presented. During preliminary design stage virtual prototyping approach was adopted which helped to make critical decisions earlier in the development stage before physical prototyping. Further, sensitivity study of size of heat exchangers, layout of fan-heat exchangers and its effect on overall system resistance was studied. Data from field trials were gathered and analysed. A good correlation of thermal data from field trials in collaboration with CVRDE and data evaluated based on numerical simulations is established. This approach and close correlation between the theoretical and field data will be helpful in achieving all future developments of tracked vehicle powerpacks, first time right.

Author Biographies

Jayesh Namjoshi, Product and Technology Development Centre (Defence & Aerospace), Larsen & Toubro Limited, Mumbai
Mr Jayesh Namjoshi obtained Master’s in Mechanical Engineering with specialisation in product development from Jonkoping University, Sweden in year 2008. He is currently Manager - Product and Technology Development Centre (Defence & Aerospace), L&T Limited. He is associated with Analytical and Experimental Techniques Group in the department. His main areas of interests are thermal management, optimisation and advanced analytical techniques for new product development.
Sachin Wagle, Product and Technology Development Centre (Defence & Aerospace), Larsen & Toubro Limited, Mumbai
Mr Sachin Wagle holds Mechanical Engineering Master’s from Pune University in year 2005. He is Manager- Product and Technology Development Centre (Defence & Aerospace), L&T and is Technical Lead- Armored Systems which is a subgroup of guns, Missiles and armored systems BU. He is SAE member and his main interest areas are armored system, powertrain, suspension, reliability.
Murtuza Kundawala, Product and Technology Development Centre (Defence & Aerospace), Larsen & Toubro Limited, Mumbai
Mr Murtuza Kundawala, obtained his Master’s in Mechanical Design from IIT Bombay in 2009 and is currently DGM- Product and Technology Development Centre (Defence and Aerospace), L&T and heading the design group for guns and armored systems. His main areas of interest are armored systems, electro-optics, robotics and mechatronic systems.
Manoj Srivastava, Product and Technology Development Centre (Defence & Aerospace), Larsen & Toubro Limited, Mumbai
Mr Manoj Srivastava, Post Graduate in Mechanical Engineering with specialisation in CAD-CAM from Gujarat University in year 2001, is currently DGM– PTDC (Defence and Aerospace), L&T and heading Advanced Analytical and Experimental Techniques Group. He is a member of Nuclear Society of India. His main areas of interests are shock and vibrations, hydrodynamics and propulsion system.
Published
2017-06-30
How to Cite
Namjoshi, J., Wagle, S., Kundawala, M., & Srivastava, M. (2017). Design and Optimisation of Cooling System for Tracked Vehicle Powerpack. Defence Science Journal, 67(4), 390-395. https://doi.org/10.14429/dsj.67.11538
Section
Special Issue Papers