한국해양대학교

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선박의 배기가스 폐열을 이용한 흡수식 냉동시스템의 선박 적용에 관한 연구

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dc.contributor.advisor 오철 -
dc.contributor.author 송인웅 -
dc.date.accessioned 2019-12-16T02:49:28Z -
dc.date.available 2019-12-16T02:49:28Z -
dc.date.issued 2018 -
dc.identifier.uri http://repository.kmou.ac.kr/handle/2014.oak/11593 -
dc.identifier.uri http://kmou.dcollection.net/common/orgView/200000011771 -
dc.description.abstract A study on the application of the absorption type refrigeration system using exhaust gas waste heat of ship to the ship was carried out. There is an unusual climate all over the world, and global warming is the main cause. There are various discussions on the idea that global warming is the cause of greenhouse gas, but there is a close correlation between the increase of greenhouse gas and the increase of global temperature. Efforts are being made to reduce greenhouse gas emissions globally as the awareness of greenhouse gases and global warming increases. In the case of ships, the waste heat recovery system can be operated to improve efficiency and reduce greenhouse gas emissions. And confirmed the effect of increasing energy efficiency of ship and reduction of greenhouse gas through A Study on the Ship’s Thermal Efficiency Improvement by the ORC Power Generation System by Temperature Difference between Exhaust Heat and Sea Water. We considered additional efficiency improvement method after the ORC power generation system using exhaust gas waste heat. The absorption refrigeration system using waste heat was constructed, and the optimization method and the application of the ship were carried out. A double effect absorption refrigeration system was designed using the HYSYS process design program and simulations were conducted to check the coefficient of performance and refrigeration capacity. As a result of simulation by inputting arbitrary temperature, pressure, and flow rate to the designed system, the results were obtained with a coefficient of performance of 0.48 and a freezing capacity of 185.5kW. The working fluid of the system was ammonia and water. In order to optimize the system, the temperature of the exhaust gas supplied to the generator, the flow rate of the working fluid supplied to the generator, and the temperature of the cooling seawater supplied to the condenser were selected as parameters. The simulation results show that each parameter is changed and it affects the coefficient of performance. Then, simulation was performed by applying a combination of three parameters. Through the optimization process, the grade coefficient of performance could be improved to 0.58. For reference, the refrigeration capacity of 73kW was obtained. The optimized absorption refrigeration system was applied to the BOG re-liquefaction system of the LPG carrier. The BOG re-liquefaction system of the LPG carrier was simplified by using HYSYS, and the refrigeration load was used in the BOG cooling process. As a result, energy savings of 16.5kW were confirmed. Through this study, we confirmed the efficiency improvement after the ORC power generation system using exhaust gas waste heat. This study is expected to be useful for improving the energy efficiency of ship in industrial field. -
dc.description.tableofcontents 1. 서 론 1 1.1 연구 배경 1 1.1.1 온난화에 따른 기후 변화 1 1.1.2 신 기후체제 6 1.2 종래의 연구 11 1.2.1 선박의 친환경 기술 11 1.2.2 선박 폐열 회수 시스템 13 1.2.3 폐열을 이용한 ORC 발전 시스템 20 2. 선박 주기관 폐열을 활용한 흡수식 냉동 시스템 설계 24 2.1 흡수식 냉동 시스템의 이론 24 2.1.1 시스템의 개요 24 2.1.2 시스템의 원리 25 2.1.3 시스템의 열 계산과 성적계수 27 2.1.4 다단 흡수식 냉동 시스템 30 2.2 배기가스 폐열을 활용한 흡수식 냉동 시스템 설계 31 2.2.1 흡수식 냉동 시스템의 필요성 31 2.2.2 시스템 설계 32 2.2.3 시스템 해석 38 2.2.4 시스템 성능 43 3. 2중 효용 흡수식 냉동 시스템의 최적화 45 3.1 발생기에 공급되는 배기가스 온도의 영향 45 3.2 발생기에 공급되는 용액의 유량에 따른 영향 49 3.3 응축기로 공급되는 해수 온도의 영향 53 3.4 시스템의 최적화를 위한 시뮬레이션 57 3.5 최적화된 시스템의 용량의 확대 66 4. 배기가스 폐열을 이용한 흡수식 냉동 시스템의 선박 적용 70 4.1 적용 분야 70 4.2 액화석유가스운반선의 증발가스 재액화시스템에 적용 73 4.2.1 개요 73 4.2.2 시뮬레이션을 통한 전력 소비량 비교 76 5. 결 론 80 -
dc.language kor -
dc.publisher 한국해양대학교 해사산업대학원 -
dc.rights 한국해양대학교 논문은 저작권에 의해 보호받습니다. -
dc.title 선박의 배기가스 폐열을 이용한 흡수식 냉동시스템의 선박 적용에 관한 연구 -
dc.type Dissertation -
dc.date.awarded 2018-02 -
dc.contributor.alternativeName Song, In Ung -
dc.contributor.department 해사산업대학원 기관공학과 -
dc.contributor.affiliation 한국해양대학교 해사산업대학원 기관공학과 -
dc.description.degree Master -
dc.subject.keyword 선박 폐열, 선박 적용, 에너지 절감, 온실가스 감축, 흡수식 냉동시스템 -
dc.title.translated A Study on Ship Application of Absorption Refrigeration System Using Exhaust Waste Heat from Ship -
dc.identifier.holdings 000000001979▲200000000139▲200000011771▲ -
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선박의 배기가스 폐열을 이용한 흡수식 냉동시스템의 선박 적용에 관한 연구.pdf Download

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