Performance evaluation of an oxy-coal-fired power generation system : thermodynamic evaluation of power cycle = 순산소 석탄 연소 발전 시스템의 성능 평가 : 동력사이클의 열역학적 해석

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Power generation systems based on the oxy-coal combustion with carbon dioxide capture and storage (CCS) capability are being proposed and discussed lately. Although a large number of lab scale studies for oxy-coal power plant have been made, studies of pilot scale or commercial scale power plant are not enough. Only a few publicized demonstration projects for oxy-coal power plant are introduced recently. The proposed systems are evolving and various alternatives are to be comparatively evaluated. This paper presents a proposed approach for performance evaluation of a commercial 100MWe class power plant, which is currently being considered for ‘retrofitting’ for the demonstration of the concept. The system is configurated based on design-operating conditions and proper assumptions. System components to be included in the discussion are listed. Part division and methods are suggested as an approach for system configuration and for verifying main variables. Evaluation criteria in terms of performance are summarized based on the system heat and mass balance and simple performance parameters, such as the fuel to power efficiency and brief introduction of the second law analysis. Also gas composition is identified for additional analysis to impurities in the system including the purity of oxygen and unwanted gaseous components of nitrogen, argon and oxygen in air separation unit and $CO_2$ processing unit. Cases are selected for comparative evaluation, based on the site-specific requirements. With limited information available, preliminary evaluation is attempted for the cases.
Advisors
Choi, Sang-Minresearcher최상민researcher
Description
한국과학기술원 : 기계공학전공,
Publisher
한국과학기술원
Issue Date
2010
Identifier
418939/325007  / 020073356
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학전공, 2010.2, [ viii, 85 p. ]

Keywords

performance evaluation; GateCycle; heat and mass balance; Oxy-coal-fired power plant; exergy analysis; 엑서지 해석; 성능 평가; 게이트사이클; 열 및 물질 정산; 순산소 석탄 연소 발전 시스템

URI
http://hdl.handle.net/10203/45782
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=418939&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
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