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Assessment of geothermal assisted coal-fired power generation using an Australian case study

Abstract

Highlights: • Systematic techno-economic analyses of GAPG system completed for Australian conditions. • Greater utilisation efficiency of both geothermal and fossil fuel resources was achieved. • Reference maps developed to predict conditions when hybrid plant outperforms two stand-alone plants. • Carbon tax and RECs rates of 40 $/tonne and 60 cents/kW h are adequate. • HDR resources should be located no further than 20 km from the plant. - Abstract: A systematic techno-economic analysis of geothermal assisted power generation (GAPG) was performed for a 500 MW unit of a typical coal-fired power plant located at the upper Hunter region of New South Wales, Australia. Specifically, the GAPG viability and performance was examined by investigating the impacts of reservoir temperature, resource distance, hybridisation scheme, and economic conditions including carbon tax and Renewable Energy Certificates (REC). The process simulation package, Aspen HYSYS, was employed for all simulation purposes. Thermodynamically, GAPG system was found to increase the power output of the plant by up to 19% under the booster mode whilst in fuel saving mode the coal consumption reduced by up to 0.3 million tonne/year decreasing the Green House Gas (GHG) emission by up to 15% (0.6 million tonne/year). Economic analyses showed that  More>>
Authors:
Zhou, Cheng; [1]  Doroodchi, Elham; [2]  Moghtaderi, Behdad [1] 
  1. Priority Research Centre for Energy, Discipline of Chemical Engineering, School of Engineering, Faculty of Engineering and Built Environment, The University of Newcastle, Callaghan, NSW 2308 (Australia)
  2. Priority Research Centre for Advanced Particle Processing and Transport, Discipline of Chemical Engineering, School of Engineering, Faculty of Engineering and Built Environment, The University of Newcastle, Callaghan, NSW 2308 (Australia)
Publication Date:
Jun 01, 2014
Product Type:
Journal Article
Resource Relation:
Journal Name: Energy Conversion and Management; Journal Volume: 82; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Subject:
29 ENERGY PLANNING, POLICY AND ECONOMY; CARBON; COMPARATIVE EVALUATIONS; ECONOMIC ANALYSIS; HOUSES; HYBRID SYSTEMS; PERFORMANCE; POWER GENERATION; POWER PLANTS; RENEWABLE ENERGY SOURCES; RESERVOIR TEMPERATURE
OSTI ID:
22319200
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0196-8904; CODEN: ECMADL; Other: PII: S0196-8904(14)00203-9; TRN: GB15R2011025402
Availability:
Available from http://dx.doi.org/10.1016/j.enconman.2014.03.011
Submitting Site:
INIS
Size:
page(s) 283-300
Announcement Date:
Mar 31, 2015

Citation Formats

Zhou, Cheng, Doroodchi, Elham, and Moghtaderi, Behdad. Assessment of geothermal assisted coal-fired power generation using an Australian case study. United Kingdom: N. p., 2014. Web. doi:10.1016/J.ENCONMAN.2014.03.011.
Zhou, Cheng, Doroodchi, Elham, & Moghtaderi, Behdad. Assessment of geothermal assisted coal-fired power generation using an Australian case study. United Kingdom. doi:10.1016/J.ENCONMAN.2014.03.011.
Zhou, Cheng, Doroodchi, Elham, and Moghtaderi, Behdad. 2014. "Assessment of geothermal assisted coal-fired power generation using an Australian case study." United Kingdom. doi:10.1016/J.ENCONMAN.2014.03.011. https://www.osti.gov/servlets/purl/10.1016/J.ENCONMAN.2014.03.011.
@misc{etde_22319200,
title = {Assessment of geothermal assisted coal-fired power generation using an Australian case study}
author = {Zhou, Cheng, Doroodchi, Elham, and Moghtaderi, Behdad}
abstractNote = {Highlights: • Systematic techno-economic analyses of GAPG system completed for Australian conditions. • Greater utilisation efficiency of both geothermal and fossil fuel resources was achieved. • Reference maps developed to predict conditions when hybrid plant outperforms two stand-alone plants. • Carbon tax and RECs rates of 40 $/tonne and 60 cents/kW h are adequate. • HDR resources should be located no further than 20 km from the plant. - Abstract: A systematic techno-economic analysis of geothermal assisted power generation (GAPG) was performed for a 500 MW unit of a typical coal-fired power plant located at the upper Hunter region of New South Wales, Australia. Specifically, the GAPG viability and performance was examined by investigating the impacts of reservoir temperature, resource distance, hybridisation scheme, and economic conditions including carbon tax and Renewable Energy Certificates (REC). The process simulation package, Aspen HYSYS, was employed for all simulation purposes. Thermodynamically, GAPG system was found to increase the power output of the plant by up to 19% under the booster mode whilst in fuel saving mode the coal consumption reduced by up to 0.3 million tonne/year decreasing the Green House Gas (GHG) emission by up to 15% (0.6 million tonne/year). Economic analyses showed that for a typical HDR resource with a reservoir temperature about 150 °C located within a 5 km radius from the power plant, the GAPG system becomes economically competitive to the stand-alone fossil fuel based plant when minimum carbon tax and RECs rates of 40 $/tonne and 60 cents/kW h are introduced. The figure of merit analyses comparing GAPG system with both stand-alone fossil fuel and stand-alone geothermal plants showed that an economically feasible GAPG system requires the use of HDR resources located no further than 20 km from the plants. Reference maps were also developed to predict suitable conditions for which the hybrid plant outperforms the stand-alone plants.}
doi = {10.1016/J.ENCONMAN.2014.03.011}
journal = {Energy Conversion and Management}
volume = {82}
journal type = {AC}
place = {United Kingdom}
year = {2014}
month = {Jun}
}