Coal combined-cycle plant with working medium heating in gas-turbine cycle in periodic regenerative heat exchangers

The authors consider the technique based on application of air heated in periodic regenerative ceramic heat exchangers by coal powder combustion products as a gas-turbine working medium to be rather promising for being studied. In this case the working medium can be heated to essentially higher temp...

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Main Authors: A. M. Kler, E. A. Tyurina, A. S. Mednikov
Format: Article
Language:Russian
Published: Tomsk Polytechnic University 2009-06-01
Series:Известия Томского политехнического университета: Инжиниринг георесурсов
Subjects:
Online Access:http://izvestiya-tpu.ru/archive/article/view/1157
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author A. M. Kler
E. A. Tyurina
A. S. Mednikov
author_facet A. M. Kler
E. A. Tyurina
A. S. Mednikov
author_sort A. M. Kler
collection DOAJ
description The authors consider the technique based on application of air heated in periodic regenerative ceramic heat exchangers by coal powder combustion products as a gas-turbine working medium to be rather promising for being studied. In this case the working medium can be heated to essentially higher temperatures than at coal combustion in the pressurized fluidized bed. Here only a small amount of ash contained in the coal combustion products settles in the ceramic heat exchanger and then penetrates into the heated air. It allows supporting high air temperature before the turbine at an acceptable level of ash concentration at gas turbine inlet. To substantiate the efficiency of this technique the authors have developed the technological scheme of coal-fired combined cycle plant with gas-turbine cycle working medium heated in periodic regenerative heat exchangers; the mathematical models of regenerative ceramic heat exchangers with cylindrical conduits and coal-fired combined cycle plant were developed. The paper introduces the results based on a detailed mathematical model of the optimization technical and economic studies of coal-fired combined cycle plant with gas-turbine cycle working medium heated in periodic regenerative heat exchangers.
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spelling doaj.art-60963408990f48acb624dcbe22892a952023-06-03T21:13:14ZrusTomsk Polytechnic UniversityИзвестия Томского политехнического университета: Инжиниринг георесурсов2500-10192413-18302009-06-013234Coal combined-cycle plant with working medium heating in gas-turbine cycle in periodic regenerative heat exchangersA. M. KlerE. A. TyurinaA. S. MednikovThe authors consider the technique based on application of air heated in periodic regenerative ceramic heat exchangers by coal powder combustion products as a gas-turbine working medium to be rather promising for being studied. In this case the working medium can be heated to essentially higher temperatures than at coal combustion in the pressurized fluidized bed. Here only a small amount of ash contained in the coal combustion products settles in the ceramic heat exchanger and then penetrates into the heated air. It allows supporting high air temperature before the turbine at an acceptable level of ash concentration at gas turbine inlet. To substantiate the efficiency of this technique the authors have developed the technological scheme of coal-fired combined cycle plant with gas-turbine cycle working medium heated in periodic regenerative heat exchangers; the mathematical models of regenerative ceramic heat exchangers with cylindrical conduits and coal-fired combined cycle plant were developed. The paper introduces the results based on a detailed mathematical model of the optimization technical and economic studies of coal-fired combined cycle plant with gas-turbine cycle working medium heated in periodic regenerative heat exchangers.http://izvestiya-tpu.ru/archive/article/view/1157coal combined-cycle plantceramic heat exchangermathematical modelingoptimization studies
spellingShingle A. M. Kler
E. A. Tyurina
A. S. Mednikov
Coal combined-cycle plant with working medium heating in gas-turbine cycle in periodic regenerative heat exchangers
Известия Томского политехнического университета: Инжиниринг георесурсов
coal combined-cycle plant
ceramic heat exchanger
mathematical modeling
optimization studies
title Coal combined-cycle plant with working medium heating in gas-turbine cycle in periodic regenerative heat exchangers
title_full Coal combined-cycle plant with working medium heating in gas-turbine cycle in periodic regenerative heat exchangers
title_fullStr Coal combined-cycle plant with working medium heating in gas-turbine cycle in periodic regenerative heat exchangers
title_full_unstemmed Coal combined-cycle plant with working medium heating in gas-turbine cycle in periodic regenerative heat exchangers
title_short Coal combined-cycle plant with working medium heating in gas-turbine cycle in periodic regenerative heat exchangers
title_sort coal combined cycle plant with working medium heating in gas turbine cycle in periodic regenerative heat exchangers
topic coal combined-cycle plant
ceramic heat exchanger
mathematical modeling
optimization studies
url http://izvestiya-tpu.ru/archive/article/view/1157
work_keys_str_mv AT amkler coalcombinedcycleplantwithworkingmediumheatingingasturbinecycleinperiodicregenerativeheatexchangers
AT eatyurina coalcombinedcycleplantwithworkingmediumheatingingasturbinecycleinperiodicregenerativeheatexchangers
AT asmednikov coalcombinedcycleplantwithworkingmediumheatingingasturbinecycleinperiodicregenerativeheatexchangers