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Thermoeconomic Approach to the Analysis of Energy System Control Strategies

[+] Author Affiliations
Vittorio Verda, Giorgia Baccino

Politecnico di Torino, Torino, Italy

Paper No. IMECE2010-39166, pp. 619-625; 7 pages
doi:10.1115/IMECE2010-39166
From:
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 5: Energy Systems Analysis, Thermodynamics and Sustainability; NanoEngineering for Energy; Engineering to Address Climate Change, Parts A and B
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4429-8
  • Copyright © 2010 by ASME

abstract

In this paper a thermoeconomic approach is applied to the dynamic model of a Power System in order to investigate the effects of the control system on the primary energy consumption. To achieve this objective, various control strategies are compared when variations of the operation condition, due to some internal or external causes, are produced. Those variations causes the intervention of the control system, which rearranges the operating condition in order to have the controlled quantities within acceptable ranges. Generally the plant efficiency changes, depending on the selected strategy. A microturbine is considered as the case study. The analysis here proposed allows one to quantify the effect of the control on the performance variation of the components. The approach associates an exergetic cost and a thermoeconomic cost to the control system operation, which expresses the additional resource (primary energy and economic resources) consumptions that may be associated to the control. The impact on the initial and final steady states as well as the transient evolution are considered.

Copyright © 2010 by ASME

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