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GM 냉동기를 이용한 공기 액화시스템의 예냉이 공기액화에 미치는 영향 연구
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | 박동훈 | - |
| dc.date.accessioned | 2017-02-22T02:21:43Z | - |
| dc.date.available | 2017-02-22T02:21:43Z | - |
| dc.date.issued | 2008 | - |
| dc.date.submitted | 2008-01-07 | - |
| dc.identifier.uri | http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002174279 | ko_KR |
| dc.identifier.uri | http://repository.kmou.ac.kr/handle/2014.oak/8273 | - |
| dc.description.abstract | In this study, the experiments was carried out to investigate the effect of LN2 precooling temperature of 288K, 243K, 213K, 173K at 1 ~ 4bar of air liquefaction system. Experimental appratus on the air liquefaction system by using the LN2 precooling with direct cooling was designed and equiped. It was consisted of an air compressor, a GM refrigerator, liquefaction vessels, a liquid nitrogen precooler, and a vacuum pump. In case of the cooling without load, the temperature of GM refrigerator was decreased to 24K at 1st stage and 7K at 2nd stage, which meaned that the liquefaction vessel was well insulated and the cooling system was high performance. The experimental results showed that while increasing air pressure and decreasing the precooling temperature, the cool-down time was decreased significantly, and the cumulative liquefaction rate was increased about 22%. Also FOM was increased as increasing air pressure and decreasing the precooling temperature. | - |
| dc.description.tableofcontents | 1. 서 론 1 1.1. 연구 배경 1 1.2. 연구 목적 3 2. 이론적 배경 5 2.1. 액화천연가스의 물리적 특성 5 2.2. 공기의 특성 7 2.3. 공기액화 이론 9 2.3.1. 공기액화의 기본 원리 9 2.3.2. 일반 공기액화 사이클 11 2.3.2.1. Linde 사이클 12 2.3.2.2. Claude 사이클 13 2.3.2.3. 공기 액화 분리 시스템 14 2.3.3. 본 연구의 공기 액화공정 18 2.3.3.1. 이론적 액화공정 해석 18 2.3.3.2. GM 냉동기의 작동원리 24 2.3.3.3. 본 연구의 액화공정 27 2.4. 선행연구 고찰 28 3. 공기액화 실험장치 및 실험방법 34 3.1. 실험장치 34 3.2. 실험방법 45 4. 실험결과 및 고찰 46 4.1. 무부하 성능특성 46 4.2. 압력변화에 따른 액화 공기의 유량 특성 48 4.3. 액체질소(LN2) 예냉에 따른 액화량 변화 55 4.4. 압력과 예냉온도에 따른 압축일률 산정 64 5. 결 론 66 참 고 문 헌 68 | - |
| dc.language | kor | - |
| dc.publisher | 한국해양대학교 대학원 | - |
| dc.title | GM 냉동기를 이용한 공기 액화시스템의 예냉이 공기액화에 미치는 영향 연구 | - |
| dc.title.alternative | A study on the precooling effect of air liquefaction system by using a GM refrigerator | - |
| dc.type | Thesis | - |
| dc.date.awarded | 2008-02 | - |
| dc.contributor.alternativeName | PARK DONG HOON | - |
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