한국해양대학교

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LNG냉열이용 부유식 냉동 및 발전 복합플랜트 설계에 관한 연구

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dc.contributor.advisor 도덕희 -
dc.contributor.author 이명호 -
dc.date.accessioned 2019-12-16T02:45:31Z -
dc.date.available 2019-12-16T02:45:31Z -
dc.date.issued 2017 -
dc.identifier.uri http://repository.kmou.ac.kr/handle/2014.oak/11497 -
dc.identifier.uri http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002380366 -
dc.description.abstract Base on the energy diversification policy, Korea Gas Corporation started to import LNG from Indonesia in October 1986, and supplied natural gas to Gyeongin area through commercial operation of Pyeongtaek LNG terminal and imported from Malaysia in September 1991 also from July 1993 began to supplying to the Central area and also to the Yeongnam and Honam area. After that, commercial operation was started at the Incheon LNG terminal and the gas was supplied to the Busan area. In the first decade since importing, LNG annual use amount is 17 million tons, the amount used every year increases, the basic fuel for catering and heating necessary for daily routine for the first time in 20 years has changed from briquettes and oil to city gas. In order to reduce the volume of NG, liquefy the temperature to -162 ° C, transport it to the LNG carrier, store it in the LNG storage tank of Incheon, Pyeongtaek, Tongyoung and Gwangyang terminal and then supply to consumers after revaporizing it. Methane, which is the main component of natural gas used as city gas, supplies high energy of 13,000 kcal/kg in the combustion process, so it plays a role as an excellent energy source, and to supply it to customers, LNG using a seawater type carburetor to heat to normal temperature NG, 200 kcal/kg of cold heat which is 2.5 times higher than the heat of ice melting which is the core heat source of ice heat storage is discarded to the sea. The theoretical method for recovering the LNG cold which is discarded in this manner can use -155℃ cold heat generated in the vaporization process of LNG for liquefaction separation of air, released after liquefaction separation -130'C cold heat used for low temperature crushing of waste tires -100'C cold heat is used for metal forming and freezing warehouse and ice making and the cold heat generated after ice making can be supplied to cold heat required for cooling. For this reason, academia and related companies have made great efforts, but in Korea, it is possible to use cold energy only if it is adjacent to the piping system supplied from the LNG receiving terminal. Due to the geopolitical restriction, it is judged that it can not recover the huge amount of cold heat released in the process of converting to gas and it is not economical. However, in this study, we will focus on not only solving the above problems but also being able to recover enormous LNG cold heat if it is adjacent to the LNG supplier and the utilization recipient of LNG cold energy, I decided to do research on a freezing warehouse using LNG cold energy. In the neighboring areas of the island of Indonesia, which is a producer and exporter of LNG, the existing mechanical compression refrigeration system is used for freezing fisheries such as tuna, which is a high quality fish family. In addition, LNG vaporization system is installed and NG is supplied to power production facilities reaching 100MW. Therefore, a new concept, floating type Combined Cold storage and Power generator(CCP). This supply quick freezing warehouse using LNG cold energy and electricity from power generators using vaporized NG installed in the barge to Southeast Asia including Indonesia. -
dc.description.tableofcontents Abstract X 제1장 서 론 1 1.1 천연가스와 LNG의 역사 2 1.2 냉장고의 역사 3 1.3 연구 배경LNG생산시스템 5 제2장 LNG생산과 냉열의 활용 8 2.1 LNG생산시스템 10 2.1.1 가스 처리시스템 10 2.1.2 액화공정 13 2.2 LNG냉열의 활용 19 2.2.1 LNG냉열이용 발전사업 19 2.2.2 LNG냉열이용 공기액화 분리사업 26 2.2.3 LNG냉열이용 저온 분쇄사업 29 2.2.4 액화탄산 및 드라이아이스 사업 30 2.2.5 냉동 및 냉장창고사업 31 2.2.6 LNG냉열이용 지역냉방 35 2.2.7 기타 냉열이용 기술현황 37 2.3 LNG생산기지 냉열이용 현황 39 2.3.1 천연가스 생산프로세스 39 2.3.2 생산기지 냉열이용 가능량 40 2.3.3 국내의 냉열 이용사례 42 제3장 LNG냉열이용 부유식 냉동창고 설계 43 3.1 기존 압축시스템과 냉열이용시스템 43 3.1.1 기존 압축시스템 43 3.1.2 LNG냉열이용 냉동창고 44 3.1.3 LNG냉열이용 냉동창고의 장단점 45 3.1.4 LNG냉열이용의 국내여건 45 3.2 부유식 압축 냉동시스템 모델 47 3.2.1 기본 모델의 개요 47 3.2.2 부유식 압축 냉동시스템 48 3.3 LNG 냉열이용 부유식 냉동시스템 75 3.3.1 LNG 열교환기의 가용 냉열 75 3.3.2 기본모델의 설계 개요 82 3.3.3 적용시스템 모델 1 84 3.3.4 적용시스템 모델 2 91 3.3.5 적용시스템 모델 3 102 3.3.6 적용시스템 모델 4 112 3.4 기관실 유틸리티 시스템 122 3.4.1 발전 시스템 122 3.4.2 보조기계 시스템 123 3.5 펌프 룸 시스템 124 3.5.1 LNG 공급 시스템 125 3.5.2 브라인 공급 시스템 126 3.5.3 온도 제어 시스템 127 3.6 예시모델의 특징 128 3.7 상황별 LNG 소요량 변화 132 3.7.1 냉동 물량변화에 따른 LNG 소요량 132 3.7.2 외기온도 변화에 따른 LNG 소요량 134 3.8 적용모델의 경제성 평가 137 3.8.1 기계식 압축냉동시스템의 생산비용 137 3.8.2 LNG 냉열시스템의 생산비용 137 3.9 본 과제의 결과요약 138 제4장 결 론 139 감사의 글 141 참고문헌 142 부 록 147 -
dc.format.extent xi, 150 p. -
dc.language kor -
dc.publisher 한국해양대학교 대학원 -
dc.rights 한국해양대학교 논문은 저작권에 의해 보호받습니다. -
dc.title LNG냉열이용 부유식 냉동 및 발전 복합플랜트 설계에 관한 연구 -
dc.type Dissertation -
dc.date.awarded 2017-08 -
dc.contributor.alternativeName Lee Myoung-Ho -
dc.contributor.department 대학원 냉동공조공학과 -
dc.contributor.affiliation 한국해양대학교 일반대학원 -
dc.description.degree Doctor -
dc.subject.keyword "LNG, Methane, City gas, Cold energy, Vaporizer, Metal forming, Refrigeration crushing, Grid, CCP" -
dc.title.translated A Study on Floating type Combined Cold Storage and Power Plant using LNG Cold Energy -
dc.contributor.specialty LNG냉열에너지 -
dc.identifier.holdings 000000001979▲000000007040▲000002380366▲ -
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