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Long-Term Operation Strategies Case Studies for Combined Heat and Power

[+] Author Affiliations
E. E. B. Gomes, C. Olmos, A. L. Polyzakis, P. Pilidis

Cranfield University, Bedfordshire, UK

Paper No. IMECE2011-63359, pp. 685-692; 8 pages
  • ASME 2011 International Mechanical Engineering Congress and Exposition
  • Volume 4: Energy Systems Analysis, Thermodynamics and Sustainability; Combustion Science and Engineering; Nanoengineering for Energy, Parts A and B
  • Denver, Colorado, USA, November 11–17, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5490-7
  • Copyright © 2011 by ASME


In the next years Distributed Poly-generation Systems are expected to play an increasingly important role in the electricity infrastructure and market. The successful spread of small-scale generation either connected to the distribution network or on the customer side of the meter depends on diverse issues, such as the possibilities of technical implementation, resource availability, environmental aspects, and regulation and market conditions. The aim of this study is to develop an economical and parametric analysis of a Distributed Generation System based on gas turbines able to satisfy the energy demand of a typical Hotel complex. Here we show the economic performance of six cases combining different designs and regimes of operation. The software Turbomatch, the gas turbine performance code of Cranfield University, was used to simulate the off-design performance of the engines in different ambient and load conditions. A clear distinction between cases running at full load and following the load could be observed in the results. Full load regime can give a shorter return on the investment than following the load. Despite of CHP systems currently are not economically attractive, in the future this scenario may change due to the environmental regulations and unavailability of low price fuel for large centralised power stations. CHP has a significant potential but requires favourable legislative and fair energy market conditions to successfully increase its share in the power generation market.

Copyright © 2011 by ASME



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