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Development of an oxy-fuel combustor with fuel preheating for regenerator system

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Abstract

This paper deals with the development of a regenerator system with oxy-fuel combustion that enables fuel preheating. Such a system would save input energy as its combustor configuration is designed to provide high fuel temperature. In this study, three different combustor configurations were first considered and numerically analyzed. The simulation results revealed that fuel temperature and the distributions of the mixed gases were affected by the configuration of the combustor. The regenerator system with fuel preheating combustor was then set up and demonstrated in a bench-scale test rig. The experimental results indicated that the fuel temperature increased to over 410°C and that the heat recovery ratio increased by 9.6%. Thus, it was shown that the application of fuel preheating could enhance the thermal efficiency in the regenerator system with oxy-fuel combustion.

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Authors and Affiliations

  1. Korea Institute of Energy Research, Daejeon, 305-343, Korea

    Sung Kook Hong, Dong Soon Noh & Eun Kyung Lee

  2. Korea Research Institute of Ships and Ocean Engineering, Daejeon, 305-343, Korea

    Kwan Gu Kang

  3. School of Mechanical Engineering, Chung-Ang University, Seoul, 156-756, Korea

    Hong Sun Ryou

Authors
  1. Sung Kook Hong
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  2. Kwan Gu Kang
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  3. Dong Soon Noh
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  4. Eun Kyung Lee
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  5. Hong Sun Ryou
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Corresponding author

Correspondence to Sung Kook Hong.

Additional information

Recommended by Associate Editor Jeong Park

Sung Kook Hong received the B.S. and M.S. degrees in mechanical engineering from Chung-Ang University, Korea in 1998 and 2000; the Ph.D. from Yonsei University, Korea in 2007. He is currently senior researcher at Korea Institute of Energy Research. His research interests include heat transfer problems at various energy systems such as heat exchanger, regenerator, fuel cell and gas turbine.

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Hong, S.K., Kang, K.G., Noh, D.S. et al. Development of an oxy-fuel combustor with fuel preheating for regenerator system. J Mech Sci Technol 29, 4555–4559 (2015). https://doi.org/10.1007/s12206-015-0954-8

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  • DOI: https://doi.org/10.1007/s12206-015-0954-8

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