1. bookVolume 29 (2019): Issue 1 (March 2019)
Journal Details
License
Format
Journal
eISSN
2450-8594
ISSN
2080-5187
First Published
26 Jun 2014
Publication timeframe
4 times per year
Languages
English
access type Open Access

Exergetic Diagnostics of A Gas-And-Steam Power Plant

Published Online: 15 Apr 2019
Volume & Issue: Volume 29 (2019) - Issue 1 (March 2019)
Page range: 1 - 17
Received: 07 Jan 2019
Journal Details
License
Format
Journal
eISSN
2450-8594
ISSN
2080-5187
First Published
26 Jun 2014
Publication timeframe
4 times per year
Languages
English
Abstract

Evaluation of thermodynamic efficiency of a power plant is usually performed using the method of so-called thermal diagnostics, based on energy balancing. Energetic analysis is however suitable only for a quantitative assessment and for comparing similar technologies. In order to properly assess the origins of energy losses in the given system, an exergetic analysis has to be applied. The paper describes the rules of exergetic diagnostics, which greatly extends the potential of classic thermal diagnostics. A calculation example of a combined cycle power plant is included. The example demonstrates the potential of exergetic diagnostics for locating exergy losses and explains the reasons for increased consumption of fuels by comparing two working conditions of the system: reference and operational.

Keywords

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