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Meng Zhao, Mingshan Wei. Optimization and Evaluation of a Vehicular Exhaust Heat Recovery System[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2018, 27(4): 527-534. doi: 10.15918/j.jbit1004-0579.17114
Citation: Meng Zhao, Mingshan Wei. Optimization and Evaluation of a Vehicular Exhaust Heat Recovery System[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2018, 27(4): 527-534.doi:10.15918/j.jbit1004-0579.17114
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Optimization and Evaluation of a Vehicular Exhaust Heat Recovery System

doi:10.15918/j.jbit1004-0579.17114
  • 1.

    School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;Beijing Institute of Space Launch Technology, Beijing 100076, China

  • 2.

    School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China

  • Received Date:2017-10-28
    Abstract
  • Exhaust waste heat recovery system based on organic Rankine cycle (ORC) has been considered as an effective method to achieve energy conservation and emissions reduction of engine. The performance of adiesel engine with an on-board ORC exhaust heat recovery system was evaluated through simulations in this study. The combined system was optimized through controlling the exhaust gas mass flow rate entering the ORC system. The models of the engine with ORC system were developed in GT-suite and Simulink environment. The validation results showed high accuracy of the models. The performance of the system recovering heat from different exhaust gas mass flow rates was evaluated. The comparative analysis of the performance between the optimized and un-optimized system was also presented. The results indicated that the exhaust gas mass flow rate had significant effects on the system performance. Integration with the on-board ORC system could effectively improve the engine power performance.The power output of the engine-ORC combined system with optimization had further improvement, and the maximum improvement could reach up to 1 16.kW.
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