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Technical and operational performance of a small-scale comined heat-and-power (CHP) plant

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  • Smith, M.A.
  • Few, P.C.
  • Twidell, J.W.

Abstract

This paper deals with the technical, economic and environmental performance of a 40 kWe CHP plant, located within the Queens Building at De Montfort University. Conventional analysis gives the overall efficiency as 77% with a 7.1 year payback period. By examining the thermal and casual gains, a novel alternative analysis gives an effective plant efficiency of 104%. Environmental analysis shows that the CHP-generated energy produces half the carbon dioxide emissions of separately imported electricity and heat from a boiler plant. The scheduling of plant utilisation has an effect on thermal efficiency due to thermal capacitance. The economic and environmental benefits of small-scale CHP plants are demonstrated.

Suggested Citation

  • Smith, M.A. & Few, P.C. & Twidell, J.W., 1995. "Technical and operational performance of a small-scale comined heat-and-power (CHP) plant," Energy, Elsevier, vol. 20(12), pages 1205-1214.
    • Handle: RePEc:eee:energy:v:20:y:1995:i:12:p:1205-1214
    DOI: 10.1016/0360-5442(95)00073-P
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    Cited by:

    1. Badami, M. & Casetti, A. & Campanile, P. & Anzioso, F., 2007. "Performance of an innovative 120kWe natural gas cogeneration system," Energy, Elsevier, vol. 32(5), pages 823-833.
    2. Badami, M. & Mura, M. & Campanile, P. & Anzioso, F., 2008. "Design and performance evaluation of an innovative small scale combined cycle cogeneration system," Energy, Elsevier, vol. 33(8), pages 1264-1276.
    3. Salta, Myrsine & Polatidis, Heracles & Haralambopoulos, Dias, 2011. "Industrial combined heat and power (CHP) planning: Development of a methodology and application in Greece," Applied Energy, Elsevier, vol. 88(5), pages 1519-1531, May.
    4. Smith, M. A. & Few, P. C., 2001. "Domestic-scale combined heat-and-power system incorporating a heat pump: analysis of a prototype plant," Applied Energy, Elsevier, vol. 70(3), pages 215-232, November.
    5. Badami, M. & Mura, M., 2010. "Exergetic analysis of an innovative small scale combined cycle cogeneration system," Energy, Elsevier, vol. 35(6), pages 2535-2543.

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