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6 results on '"Integrated gasification combined cycle plants"'

1. A life cycle comparison of greenhouse emissions for power generation from coal mining and underground coal gasification.

Author

Hyder, Zeshan, Ripepi, Nino, and Karmis, Michael

Subjects
UNDERGROUND gasification of coal, COAL mining, POWER plants, GREENHOUSE gases research, GREENHOUSE gas mitigation
Abstract

Underground coal gasification (UCG) is an advancing technology that is receiving considerable global attention as an economic and environmentally friendly alternative for exploitation of coal deposits. UCG has the potential to decrease greenhouse gas emissions (GHG) during the development and utilization of coal resources. In this paper, the life cycle of UCG from in situ coal gasification to utilization for electricity generation is analyzed and compared with coal extraction through conventional coal mining and utilization in power plants. Four life cycle assessment models have been developed and analyzed to compare (greenhouse gas) GHG emissions of coal mining, coal gasification and power generation through conventional pulverized coal fired power plants (PCC), supercritical coal fired (SCPC) power plants, integrated gasification combined cycle plants for coal (Coal-IGCC), and combined cycle gas turbine plants for UCG (UCG-CCGT). The analysis shows that UCG is comparable to these latest technologies and in fact, the GHG emissions from UCG are about 28 % less than the conventional PCC plant. When combined with the economic superiority, UCG has a clear advantage over competing technologies. The comparison also shows that there is considerable reduction in the GHG emissions with the development of technology and improvements in generation efficiencies. [ABSTRACT FROM AUTHOR]

Published
2016
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2. Technical and economical evaluation of a high-temperature air heater intended for integrated gasification combined cycle unit

Author

Valtsev, N. V., Ryzhkov, A. F., Valtsev, N. V., and Ryzhkov, A. F.

Abstract

In this paper the costs of creating a high-temperature air heater intended for the integrated gasification combined cycle unit developed by the authors are estimated and are compared with a steam boiler. The results can be used not only in the further development of the integrated gasification combined cycle plant under consideration, but also be interesting to specialists involved in the development of various high-temperature heat exchangers. © 2020 Institute of Physics Publishing. All rights reserved.

Published
2020

3. Selecting the design of a high-temperature air heater for integrated gasification combined cycle

Author

Valtsev, N. V., Ryzhkov, A. F., Valtsev, N. V., and Ryzhkov, A. F.

Abstract

High temperature heat exchangers are needed in various energy technologies to increase their efficiency. The article is devoted to the optimization of the design of a high-temperature air heater used in the integrated gasification combined cycle plant, developed in Ural Federal University. In the air heater, air with a pressure of 2 MPa after the cycle compressor is heated by coal combustion to a temperature of 900°C before it is fed into the combustion chamber of a gas turbine. The air heater is developed as a pulverized coal fired boiler with air heating in tubular radiation-convection heating surfaces. The authors propose a new design of a high-temperature air heater, which allows reducing the cost of the expensive high-temperature part of the unit 1.8 times compared with the previous design. A computer simulation of the boiler section is carried out to verify the proposed design solutions. © Published under licence by IOP Publishing Ltd.

Published
2020

4. Selecting the design of a high-temperature air heater for integrated gasification combined cycle

Author

N. V. Valtsev and A. F. Ryzhkov

Subjects
HIGH TEMPERATURE, HIGH TEMPERATURE AIR, History, business.industry, COAL COMBUSTION, INTEGRATED GASIFICATION COMBINED CYCLE PLANTS, COMBINED CYCLE POWER PLANTS, ENERGY TECHNOLOGIES, GASIFICATION, COAL FIRED BOILERS, Air heater, Computer Science Applications, Education, COAL, DESIGN SOLUTIONS, AIR PREHEATERS, Integrated gasification combined cycle, Environmental science, Process engineering, business, PULVERIZED COALS, HIGH TEMPERATURE HEAT EXCHANGERS, INTEGRATED GASIFICATION COMBINED CYCLE
Abstract

High temperature heat exchangers are needed in various energy technologies to increase their efficiency. The article is devoted to the optimization of the design of a high-temperature air heater used in the integrated gasification combined cycle plant, developed in Ural Federal University. In the air heater, air with a pressure of 2 MPa after the cycle compressor is heated by coal combustion to a temperature of 900°C before it is fed into the combustion chamber of a gas turbine. The air heater is developed as a pulverized coal fired boiler with air heating in tubular radiation-convection heating surfaces. The authors propose a new design of a high-temperature air heater, which allows reducing the cost of the expensive high-temperature part of the unit 1.8 times compared with the previous design. A computer simulation of the boiler section is carried out to verify the proposed design solutions.

Published
2020

5. Technical and economical evaluation of a high-temperature air heater intended for integrated gasification combined cycle unit

Author

A F Ryzhkov and N V Valtsev

Subjects
HIGH TEMPERATURE AIR, History, business.industry, INTEGRATED GASIFICATION COMBINED CYCLE PLANTS, COMBINED CYCLE POWER PLANTS, THERMAL ENGINEERING, STEAM BOILER, BOILERS, GASIFICATION, ECONOMICAL EVALUATION, ENGINES, Air heater, Computer Science Applications, Education, Unit (housing), AIR PREHEATERS, Integrated gasification combined cycle, Environmental science, Process engineering, business, HIGH TEMPERATURE HEAT EXCHANGERS, INTEGRATED GASIFICATION COMBINED CYCLE
Abstract

In this paper the costs of creating a high-temperature air heater intended for the integrated gasification combined cycle unit developed by the authors are estimated and are compared with a steam boiler. The results can be used not only in the further development of the integrated gasification combined cycle plant under consideration, but also be interesting to specialists involved in the development of various high-temperature heat exchangers. © 2020 Institute of Physics Publishing. All rights reserved. The study was financially supported by the Russian Foundation for Basic Research (No. 14-08-01226).

Published
2020

6. Techno-Economic Assessment of Co-gasification of Coal-Petcoke and Biomass in IGCC Power Plants

Author

Sofia, Daniele, Giuliano, Aristide, and Barletta, Diego

Subjects
Techno-economic assessment, lcsh:Computer engineering. Computer hardware, Process simulation model, Combined cycle power plants, lcsh:TP155-156, Coal gasification, lcsh:TK7885-7895, Computer simulation, Local biomass, Economic feasibilities, Integrated gasification combined cycle plants, Carbon dioxide, Co-gasification, Economic feasibilities, Grape seeds, Industrial datum, Integrated gasification combined cycle plants, Local biomass, Process simulation model, Techno-economic assessment, Carbon dioxide, Coal gasification, Combined cycle power plants, Grape seeds, lcsh:Chemical engineering, Industrial datum, Co-gasification
Abstract

A process simulation model of the Integrated Gasification Combined Cycle (IGCC) plant of Elcogas was developed and validated with industrial data. The model was used to assess the technical and economic feasibility of the process co-fired with up to 20% by weight of two local biomass samples (olive husk and grape seed meal). Results indicate promising features of the process in the forthcoming scenario of more severe limitations to CO2 emissions.

Published
2013

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