Performance assessment of supercritical power plant based oil fuel under sliding-pressure operation

IF 1.1 4区工程技术 Q4 ENERGY & FUELS

International Journal of Exergy Pub Date : 2023-01-01 DOI:10.1504/ijex.2023.129807

Karim Abd El Hakam A. Mohamed, Ali A.M. Hassan, Hussein M. Maghrabie

引用次数: 2

Abstract

Energetic and exergetic analyses of a 626 MWe supercritical power plant-based mazout oil-fired are carried out to assess the system's performance. The energy losses and exergy destruction are evaluated for each system component using real actual data. The results show that the boiler is the primary source of irreversibility with 88.62% of the total exergy destruction. The intermediate pressure turbine maintains an exergy efficiency of 97% at 100%-load. Moreover, the maximum thermal efficiency is achieved at 100%-full load by 44.85% whereas, the maximum overall exergy efficiency of 40% is acquired at the maximum continuous rate condition of 105%-load.

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滑压工况下超临界电厂燃油性能评价

对一个626 MWe超临界电厂的燃油系统进行了能量和火用分析，以评估系统的性能。利用实际数据对系统各组成部分的能量损失和火用破坏进行了评估。结果表明:锅炉是不可逆性的主要来源，占总火用损失的88.62%;中压水轮机在100%负荷时保持97%的火用效率。在满负荷100%时热效率最高，达到44.85%;在满负荷105%的最大连续速率工况下，总火用效率最高，达到40%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Exergy 物理-能源与燃料

CiteScore

2.10

自引率

15.40%

发文量

107

审稿时长

6 months

期刊介绍： IJEX is dedicated to providing an interdisciplinary platform for information and ideas in the field of exergy and thermodynamic optimisation. It publishes a wide range of original, high-quality research papers, and ancillary features, spanning activities from fundamental research to industrial applications. IJEX covers aspects of exergy analysis of engineering and non-engineering systems and processes in a large variety of disciplines, ranging from mechanical engineering to physics and chemical engineering to industrial ecology. Topics covered include: -Thermodynamic systems -Energy-related applications -Process optimisation -Energy systems, policies, planning -Exergy/environment modelling -Exergetic life cycle assessment -Industrial ecology -Sectoral exergy utilisation -Waste exergy emissions -Second-law efficiency -Thermo- and exergo-economics -Exergy in sustainable development -Criticisms of and problems with use of exergy -Entropy generation minimisation -Constructal theory and design