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Energies 2017, 10(1), 11; doi:10.3390/en10010011

Generic Combined Heat and Power (CHP) Model for the Concept Phase of Energy Planning Process

1
Department of Mechanical and Process Engineering, Offenburg University of Applied Sciences, Badstr. 24, 77652 Offenburg, Germany
2
Graduate School KleE, University of Freiburg, Georges-Koehler-Allee 106, 79110 Freiburg im Breisgau, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Tariq Al-Shemmeri
Received: 7 November 2016 / Revised: 7 December 2016 / Accepted: 9 December 2016 / Published: 23 December 2016
View Full-Text   |   Download PDF [904 KB, uploaded 23 December 2016]   |  

Abstract

Micro gas turbines (MGTs) are regarded as combined heat and power (CHP) units which offer high fuel utilization and low emissions. They are applied in decentralized energy generation. To facilitate the planning process of energy systems, namely in the context of the increasing application of optimization techniques, there is a need for easy-to-parametrize component models with sufficient accuracy which allow a fast computation. In this paper, a model is proposed where the non-linear part load characteristics of the MGT are linearized by means of physical insight of the working principles of turbomachinery. Further, it is shown that the model can be parametrized by the data usually available in spec sheets. With this model a uniform description of MGTs from several manufacturers covering an electrical power range from 30 k W to 333 k W can be obtained. The MGT model was implemented by means of Modelica/Dymola. The resulting MGT system model, comprising further heat exchangers and hydraulic components, was validated using the experimental data of a 65 k W MGT from a trigeneration energy system. View Full-Text
Keywords: energy planning; combined heat and power (CHP); micro gas turbine (MGT); parametrization; dimensioning energy planning; combined heat and power (CHP); micro gas turbine (MGT); parametrization; dimensioning
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Gopisetty, S.; Treffinger, P. Generic Combined Heat and Power (CHP) Model for the Concept Phase of Energy Planning Process. Energies 2017, 10, 11.

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