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A thermodynamic analysis of a novel high efficiency reciprocating internal combustion engine—the isoengine

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  • Coney, M.W.
  • Linnemann, C.
  • Abdallah, H.S.

Abstract

A novel concept for a high efficiency reciprocating internal combustion engine (the isoengine) is described and its cycle is analysed. The highly turbocharged engine configuration, which is intended primarily for on-site and distributed power generation, has a predicted electrical output of 7.3 MW. It has the option for co-generation of up to 3.2 MW of hot water at 95 °C supply temperature. The maximum net electrical plant efficiency is predicted to be about 60% on diesel fuel and 58% on natural gas. The key to the high electrical efficiency is the quasi-isothermal compression of the combustion air in cylinders, which are separate from the power cylinders. This achieves a significant saving in compression work and allows the recovery of waste heat back into the cycle, mainly from the exhaust gas by means of a recuperator. The construction of a first 3 MWe prototype isoengine has been completed and its testing has begun. Relevant test results are expected in the near future.

Suggested Citation

  • Coney, M.W. & Linnemann, C. & Abdallah, H.S., 2004. "A thermodynamic analysis of a novel high efficiency reciprocating internal combustion engine—the isoengine," Energy, Elsevier, vol. 29(12), pages 2585-2600.
    • Handle: RePEc:eee:energy:v:29:y:2004:i:12:p:2585-2600
    DOI: 10.1016/j.energy.2004.05.014
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    Cited by:

    1. Morgan, Robert & Dong, Guangyu & Panesar, Angad & Heikal, Morgan, 2016. "A comparative study between a Rankine cycle and a novel intra-cycle based waste heat recovery concepts applied to an internal combustion engine," Applied Energy, Elsevier, vol. 174(C), pages 108-117.
    2. Goyal, Harsh & Panthi, Niraj & AlRamadan, Abdullah S. & Cenker, Emre & Magnotti, Gaetano, 2023. "Analysis of energy flows and emission characteristics of conventional diesel and isobaric combustion in an optical engine with laser diagnostics," Energy, Elsevier, vol. 269(C).
    3. Taylor, Alex M.K.P., 2008. "Science review of internal combustion engines," Energy Policy, Elsevier, vol. 36(12), pages 4657-4667, December.
    4. Dong, Guangyu & Morgan, Robert E. & Heikal, Morgan R., 2016. "Thermodynamic analysis and system design of a novel split cycle engine concept," Energy, Elsevier, vol. 102(C), pages 576-585.
    5. Zhang, Xinjing & Xu, Yujie & Zhou, Xuezhi & Zhang, Yi & Li, Wen & Zuo, Zhitao & Guo, Huan & Huang, Ye & Chen, Haisheng, 2018. "A near-isothermal expander for isothermal compressed air energy storage system," Applied Energy, Elsevier, vol. 225(C), pages 955-964.
    6. Simon A. Harvey & Konstantina Vogiatzaki & Guillaume de Sercey & William Redpath & Robert E. Morgan, 2021. "Starting to Unpick the Unique Air–Fuel Mixing Dynamics in the Recuperated Split Cycle Engine," Energies, MDPI, vol. 14(8), pages 1-20, April.
    7. Buonomano, Annamaria & Calise, Francesco & d’Accadia, Massimo Dentice & Palombo, Adolfo & Vicidomini, Maria, 2015. "Hybrid solid oxide fuel cells–gas turbine systems for combined heat and power: A review," Applied Energy, Elsevier, vol. 156(C), pages 32-85.
    8. Dong, Guangyu & Morgan, Robert & Heikal, Morgan, 2015. "A novel split cycle internal combustion engine with integral waste heat recovery," Applied Energy, Elsevier, vol. 157(C), pages 744-753.
    9. Jaya Madana Gopal & Giovanni Tretola & Robert Morgan & Guillaume de Sercey & Andrew Atkins & Konstantina Vogiatzaki, 2020. "Understanding Sub and Supercritical Cryogenic Fluid Dynamics in Conditions Relevant to Novel Ultra Low Emission Engines," Energies, MDPI, vol. 13(12), pages 1-25, June.

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