gas turbine cogeneration Articles
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Sensitivity analysis of component efficiencies on performance of a gas turbine cogeneration system
The performance of a 1000 kW gas-turbine cogeneration system was evaluated in terms of performance measures, such as net power, exergy efficiency of the system, and the unit costs of electricity and steam. The efficiencies of some components that have a significant affect on the performance were taken as physical variables. Sensitivity was evaluated by introducing parameters, defined as the ratio ...
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An appraisal method of exergy cost minimisation for co-generation systems
This study introduces an exergy cost-minimisation appraisal method for a simple gas turbine co-generation system. Optimisation of a gas turbine co-generation system of the electric output class of 17 MW is examined for a variety of turbine inlet temperatures of 950–1,300°C. An optimum value of the turbine inlet temperature exists for exergy cost minimisation and is estimated to be 1,200°C since ...
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Thermodynamic evaluation of gas turbines for cogeneration applications
In this paper, the first and second laws of thermodynamics have been utilised to evaluate the performance of intercooled reheat regenerative gas turbine cogeneration plant. The effects of overall pressure ratio, cycle temperature ratio, pressure losses, and process steam pressure on energetic and exergetic efficiencies have been investigated. The results indicate that most of the exergy ...
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Climate Change-Driven Market Opportunities for Combined-Cycle Gas Turbines
Combined-cycle gas turbine cogeneration technology is currently enjoying wide popularity due to a variety of technological, environmental, and financial performance advantages relative to other technologies, specifically boilers. While the environmental performance advantages of this technology have focused on emissions of regulated air pollutants, such as sulfur oxides and nitrogen oxides, ...
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`Climate Change-Driven Market Opportunities for Combined-Cycle Gas Turbines,` presented at the AWMA 2001 Conference & Exhibition
Abstract Combined-cycle gas turbine cogeneration technology is currently enjoying wide popularity due to a variety of technological, environmental, and financial performance advantages relative to other technologies, specifically boilers. While the environmental performance advantages of this technology have focused on emissions of regulated air pollutants, such as sulfur oxides and nitrogen ...
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The effect of elevated inlet air temperature and relative humidity on Gas Turbine cogeneration system: exergy assessment
This research aims to quantify the exergy destructions of Gas Turbine (GT) cogeneration system under different inlet air temperatures and humidity. Three different cogeneration schemes were examined in this research: conventional GT, GT-Single Pressure HRSG and GT-Dual Pressure HRSG. A parametric study was carried out in terms of exergy destruction and second-law efficiency. The exergy ...
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A Structured Approach to Steam System Improvement through Utility System Design and Optimisation
Optimal operation of site utility systems is becoming an increasingly important part of any successful business strategy as environmental, legislative and commercial pressures grow. A reliable steam model allows a clear understanding of the system and of any operational constraints. It can also be used to determine the true cost of improvement projects, relating any changes in steam demand back ...
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12MWe combined heat and power plant plant renovation - Case Study
OWNER Societe De Cogeneration Picardie Socopic OPERATOR Dalkia Groupe EDF LOCATION Amiens, France PRODUCT Mars 100 Gas Turbine CUSTOMER VALUE Improved Energy Efficiency Quick Pay Back on Investment Societe De Cogeneration Picardie Socopic (SO.COPIC) is a producer and distributor of steam and air conditioning. SO.COPIC was searching for the right solution to renovating their old and oversized ...
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Energy conservation and electricity sector liberalisation in the Netherlands and the UK: case studies on the development of cogeneration of heat and power, wind energy and demand-side management as energy conservation options
In this article, the development of combined heat and power, wind energy and demand-side management in the UK and the Netherlands are compared. It is examined to what extent these developments are determined by liberalisation of the electricity sector in both countries. The analysis suggests that unbundling of generation and distribution, rather than privatisation or introduction of competition ...
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Technical and economic analyses of a hydrogen-fed gas turbine with steam injection and co-generation
Enel has been working on a hydrogen programme dealing with both hydrogen production and uses. The first phase deals with a hydrogen-fed, gas turbine-based co-generative cycle, in which steam injection in the gas turbine itself is adopted in order to couple high process efficiencies with very low nitrous oxide emissions. This paper presents the main results of the co-generative cycle thermodynamic ...
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