Exergy analysis of modified-supercritical power plant with solar assisted feedwater heating and CO<SUB align="right">2 capture

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.2023.130944

Rajesh Kumar, Sujit Karmakar

引用次数: 1

Abstract

Solar energy is the most readily available energy in India, which can be utilised in coal-fired thermal power plants for feedwater heating and Monoethanolamine (MEA) for MEA regeneration in post-combustion CO2 capture unit. The present study deals with 4-E (energy, exergy, environment, and economic) analysis of a 500 MWe Supercritical (SupC) coal-based thermal power plant with solar-assisted feedwater heating and MEA regeneration in CO2 capture unit. Results show that the plant efficiency is improved by 8.2% points, and the coal consumption rate is reduced by 18%. The levelised cost of electricity (LCoE) generation is increased to INR 6, and the cost for CO2 avoided is INR 3607 per tonne of CO2.

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采用太阳能辅助给水加热和CO<SUB align="right">2捕集的改进型超临界电厂的火用分析

太阳能是印度最容易获得的能源，可用于燃煤热电厂的给水加热和燃烧后二氧化碳捕集装置的单乙醇胺再生。本研究涉及一个500兆瓦超临界(SupC)煤基热电厂的4-E(能源、能源、环境和经济)分析，该电厂采用太阳能辅助给水加热和二氧化碳捕集装置的MEA再生。结果表明，电厂效率提高8.2%，煤耗率降低18%。发电的平准化成本(LCoE)增加到6印度卢比，每吨二氧化碳的二氧化碳减排成本为3607印度卢比。

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