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Theoretical analysis of the optimal configuration of co-generation systems and competitiveness of heating/cooling technologies

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  • Akisawa, Atsushi
  • Miyazaki, Takahiko
  • Kashiwagi, Takao

Abstract

This study aims at exploiting optimal configurations of technologies combined with co-generation theoretically based on a linear optimization model. With the objective function defining primary energy consumption to be minimized, optimal solutions are derived analytically. They describe the technological configurations as well as associated conditions depending on their final energy demand. An interesting finding is that the essential parameters to determine the configurations are heat, cooling and steam demands normalized by power demand. The optimal solutions are also applied to investigate the competitiveness of co-generation related technologies. The optimal solutions yield critical conditions theoretically, which is useful to understand the priority of the technologies. A sensitivity analysis numerically indicates that absorption chillers can be superior to compression chillers even though the former has lower COP than the latter. Actual data of various types of co-generation are also examined to show the practical competitiveness.

Suggested Citation

  • Akisawa, Atsushi & Miyazaki, Takahiko & Kashiwagi, Takao, 2010. "Theoretical analysis of the optimal configuration of co-generation systems and competitiveness of heating/cooling technologies," Energy, Elsevier, vol. 35(10), pages 4071-4078.
    • Handle: RePEc:eee:energy:v:35:y:2010:i:10:p:4071-4078
    DOI: 10.1016/j.energy.2010.06.015
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    References listed on IDEAS

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    Cited by:

    1. Myat, Aung & Thu, Kyaw & Kim, Young Deuk & Saha, Bidyut Baran & Choon Ng, Kim, 2012. "Entropy generation minimization: A practical approach for performance evaluation of temperature cascaded co-generation plants," Energy, Elsevier, vol. 46(1), pages 493-521.
    2. Keirstead, James & Samsatli, Nouri & Shah, Nilay & Weber, Céline, 2012. "The impact of CHP (combined heat and power) planning restrictions on the efficiency of urban energy systems," Energy, Elsevier, vol. 41(1), pages 93-103.

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