Exergy Analysis of Operating Lignite Fired Thermal Power Plant

Ganapathy, T.; Alagumurthi, N.; Gakkhar, R.P.; Murugesan, K.

doi:10.25103/jestr.021.23

Cited by 67 publications

(34 citation statements)

References 17 publications

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“…The specific physical exergy, ex ph is exergy due to the differences in the temperature and pressure of a system with respect to the reference environment [27]: it can be expressed by Equation (10) thus:…”

Section: Exergy Analysismentioning

confidence: 99%

Exergy Analysis of Solid Fuel-Fired Heat and Power Plants: A Review

2017

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Abstract:The growing demand for energy is particularly important to engineers with respect to how the energy produced by heat and power plants can be used efficiently. Formerly, performance evaluation of thermal power plants was done through energy analysis. However, the energy method does not account for irreversibilities within the system. An effective method to measure and improve efficiency of thermal power plant is exergy analysis. Exergy analysis is used to evaluate the performance of a system and its main advantage is enhancement of the energy conversion process. It helps identify the main points of exergy destruction, the quantity and causes of this destruction, as well as show which areas in the system and components have potential for improvements. The current study is a comprehensive review of exergy analyses applied in the solid fuels heat and power sector, which includes coal, biomass and a combination of these feedstocks as fuels. The methods for the evaluation of the exergy efficiency and the exergy destruction are surveyed in each part of the plant. The current review is expected to advance understanding of exergy analysis and its usefulness in the energy and power sectors: it will assist in the performance assessment, analysis, optimization and cost effectiveness of the design of heat and power plant systems in these sectors.

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Section: Exergy Analysismentioning

confidence: 99%

Exergy Analysis of Solid Fuel-Fired Heat and Power Plants: A Review

2017

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“…Kotas [4] explained in this work the concept of exergy used to define criteria of performance of thermal plant. Ganapathy et al [5] studied with an exergy analysis performed on an operating 50 MW thermal power unit. The distribution of the exergy losses in several plant components during the real time plant running conditions has been assessed to locate the process irreversibility.…”

Section: Introductionmentioning

confidence: 99%

A Theoretical Investigation of Efficiency Enhancement in Thermal Power Plants

Karri¹

2012

MME

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The need to operate a boiler efficiently in today's environment is at the top of many plant owners and operators lists. Unfortunately, operating a boiler efficiently and meeting local emission regulations do not always go hand in hand. However, advances in boiler system design and technology have made this a much more achievable task. The potential for energy improvements and cost savings is substantial when considered that most boilers operating today are performing at efficiencies that are less than 70 percent. The performance calculation and rectification measures are essential for performance evaluation and efficiency enhancement. Since the efficiency decreases from time to time it is required to find out the losses occurring in boiler using proper methodology. The environmental issues and economy are the secondary factors to be considered after finding the losses. Due to increase in fuel price and demand in more energy requirement in everyday life, proper utilization of materials and resources are necessary. This present deals with the aim of estimating the heat losses occurring in thermal power plant boilers and hence finding suitable ways for reducing it, hence allowing plants to achieve more performance, sustainability and cost-effective maintenance operation of a steam system.

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“…Ganapathy et al [7] studied with an exergy analysis performed on an operating 50 MWe unit of lignite fired steam power plant at Thermal Power Station-I, Neyveli Lignite Corporation Limited, Neyveli, Tamil Nadu, India. The distribution of the exergy losses in several plant components during the real time plant running conditions has been assessed to locate the process irreversibility.…”

Section: Coal Fired Thermal Power Plantsmentioning

confidence: 99%