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Thermoeconomic approach for the analysis of control system of energy plants

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 and on the economic costs of the product. To achieve this objective, various control strategies are compared when variations of the operation condition, due to some internal or external causes, are produced. These variations cause 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. This can be usefully applied to improve energy system operation acting on the control system, both in the off-design steady states and transient operations. In  More>>
Authors:
Verda, Vittorio; [1]  Baccino, Giorgia [1] 
  1. Department of Energy Engineering, Polytechnic of Turin, C.so Duca degli Abruzzi 24, 10129 Turin (Italy)
Publication Date:
May 15, 2012
Product Type:
Journal Article
Resource Relation:
Journal Name: Energy (Oxford); Journal Volume: 41; Journal Issue: 1; Conference: ECOS 2010: 23. international conference on efficiency, cost, optimization, simulation and environmental impact of energy systems, Lausanne (Switzerland), 14-17 Jun 2010; Other Information: Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Subject:
29 ENERGY PLANNING, POLICY AND ECONOMY; COMPARATIVE EVALUATIONS; CONTROL SYSTEMS; ENERGY ANALYSIS; ENERGY CONSUMPTION; ENERGY EFFICIENCY; ENERGY MODELS; FUEL CONSUMPTION; OPERATION; POWER SYSTEMS; STEADY-STATE CONDITIONS; TRANSIENTS; VARIATIONS
OSTI ID:
22203781
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0360-5442; CODEN: ENEYDS; Other: PII: S0360-5442(11)00557-3; TRN: GB12R5761024693
Availability:
Available from http://dx.doi.org/10.1016/j.energy.2011.08.027
Submitting Site:
INIS
Size:
page(s) 38-47
Announcement Date:
Mar 17, 2014

Citation Formats

Verda, Vittorio, and Baccino, Giorgia. Thermoeconomic approach for the analysis of control system of energy plants. United Kingdom: N. p., 2012. Web. doi:10.1016/J.ENERGY.2011.08.027.
Verda, Vittorio, & Baccino, Giorgia. Thermoeconomic approach for the analysis of control system of energy plants. United Kingdom. doi:10.1016/J.ENERGY.2011.08.027.
Verda, Vittorio, and Baccino, Giorgia. 2012. "Thermoeconomic approach for the analysis of control system of energy plants." United Kingdom. doi:10.1016/J.ENERGY.2011.08.027. https://www.osti.gov/servlets/purl/10.1016/J.ENERGY.2011.08.027.
@misc{etde_22203781,
title = {Thermoeconomic approach for the analysis of control system of energy plants}
author = {Verda, Vittorio, and Baccino, Giorgia}
abstractNote = {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 and on the economic costs of the product. To achieve this objective, various control strategies are compared when variations of the operation condition, due to some internal or external causes, are produced. These variations cause 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. This can be usefully applied to improve energy system operation acting on the control system, both in the off-design steady states and transient operations. In the particular application considered in this paper, reductions of about 8% in fuel consumption and 5% in the total costs are achieved. Concerning transient operation, it is shown that the control system can produce large variation in the operation costs.}
doi = {10.1016/J.ENERGY.2011.08.027}
journal = {Energy (Oxford)}
issue = {1}
volume = {41}
journal type = {AC}
place = {United Kingdom}
year = {2012}
month = {May}
}