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Design and Development of Innovative Protracted-Finned Counter Flow Heat Exchanger (PFCHE) for an Engine WHR and Its Impact on Exhaust Emissions

Author

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  • Rajesh Ravi

    (Department of Automobile Engineering, Madras Institute of Technology, Anna University, Tamil Nadu 600044, India)

  • Senthilkumar Pachamuthu

    (Department of Automobile Engineering, Madras Institute of Technology, Anna University, Tamil Nadu 600044, India)

Abstract

This article describes and evaluates an Organic Rankine Cycle (ORC) for waste heat recovery system both theoretically as well as experimentally. Based on the thermodynamic analysis of the exhaust gas temperature identified at different locations of the exhaust manifold of an engine, the double-pipe, internally–externally protruded, finned counter flow heat exchanger was innovatively designed and installed in diesel engine for exhaust waste heat recovery (WHR). The tests were conducted to find the performance of heat recovery system by varying the fin geometries of the heat exchanger. The effect of heat exchanger on emission parameters is investigated and presented in this work. The experimental results demonstrated that the amount of heat transfer rate, the effectiveness of heat exchange rand the brake thermal efficiency improved with an increase in length and number of the fins. A significant reduction was observed in all major emissions after the implementation of catalytic-coated, protracted finned counter flow heat exchanger. It also demonstrated the possibility of electric power production using steam turbo-electric-generator setup driven by the recovered exhaust heat energy.

Suggested Citation

  • Rajesh Ravi & Senthilkumar Pachamuthu, 2018. "Design and Development of Innovative Protracted-Finned Counter Flow Heat Exchanger (PFCHE) for an Engine WHR and Its Impact on Exhaust Emissions," Energies, MDPI, vol. 11(10), pages 1-19, October.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:10:p:2717-:d:174995
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    References listed on IDEAS

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    Cited by:

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    2. Baidya, Durjoy & de Brito, Marco Antonio Rodrigues & Ghoreishi-Madiseh, Seyed Ali, 2020. "Techno-economic feasibility investigation of incorporating an energy storage with an exhaust heat recovery system for underground mines in cold climatic regions," Applied Energy, Elsevier, vol. 273(C).
    3. Shehryar Ishaque & Man-Hoe Kim, 2019. "Seasonal Performance Investigation for Residential Heat Pump System with Different Outdoor Heat Exchanger Designs," Energies, MDPI, vol. 12(24), pages 1-22, December.
    4. Di Battista, D. & Fatigati, F. & Carapellucci, R. & Cipollone, R., 2019. "Inverted Brayton Cycle for waste heat recovery in reciprocating internal combustion engines," Applied Energy, Elsevier, vol. 253(C), pages 1-1.
    5. Thanigaivelan Vadivelu & Lavanya Ramanujam & Rajesh Ravi & Shivaprasad K. Vijayalakshmi & Manoranjitham Ezhilchandran, 2022. "An Exploratory Study of Direct Injection (DI) Diesel Engine Performance Using CNSL—Ethanol Biodiesel Blends with Hydrogen," Energies, MDPI, vol. 16(1), pages 1-13, December.
    6. Ravi, Rajesh & Pachamuthu, Senthilkumar & Kasinathan, Padmanathan, 2020. "Computational and experimental investigation on effective utilization of waste heat from diesel engine exhaust using a fin protracted heat exchanger," Energy, Elsevier, vol. 200(C).
    7. Pei Lu & Zheng Liang & Xianglong Luo & Yangkai Xia & Jin Wang & Kaihuang Chen & Yingzong Liang & Jianyong Chen & Zhi Yang & Jiacheng He & Ying Chen, 2023. "Design and Optimization of Organic Rankine Cycle Based on Heat Transfer Enhancement and Novel Heat Exchanger: A Review," Energies, MDPI, vol. 16(3), pages 1-34, January.

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