Absorption refrigeration system utilizing engine exhaust gas for bulk gas carriers = 대형 가스 수송선을 위한 엔진 배가스 활용 흡수식 냉동시스템

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This study demonstrated the feasibility of an absorption refrigeration system (ARS) that is capable of utilizing the engine exhaust gas of bulk gas carriers as the heat source and generating cooling source either for reliquefaction of the boil-off gas or for heating, ventilating and air conditioning (HVAC). The ARS employed an $NH_3/H_2O$ mixture as the refrigerant solution. The process was designed and simulated using the properties of the exhaust gas from the commercially available engines. The coefficient of performance increased with the temperature of the generated cooling source. A decrease in the engine load resulted in a decrease in the exhaust flow rate and, consequently, in a decrease in the cooling capacity. Although the exhaust temperature reached its minimum near the normal continuous rating, the dependence of the cooling capacity on the engine load was not significantly affected. A case study for a liquefied natural gas (LNG) carrier verified that the refrigeration system afforded a sufficient cooling capacity to satisfy both the required work and the temperature level needed for reliquefaction of the boil-off gas (BOG).
Advisors
Chang, Dae-Junresearcher장대준researcher
Description
한국과학기술원 : 해양시스템공학전공,
Publisher
한국과학기술원
Issue Date
2011
Identifier
468009/325007  / 020093048
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 해양시스템공학전공, 2011.2, [ v, 42 p. ]

Keywords

증발가스 재액화; 폐열; 배가스; 흡수식 냉동; 대형 가스 수송선; bulk gas carriers; BOG reliquefaction; waste heat; exhaust gas; absorption refrigeratioin

URI
http://hdl.handle.net/10203/47178
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=468009&flag=dissertation
Appears in Collection
OSE-Theses_Master(석사논문)
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