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세관 내 물의 대류비등 시 압력의 영향에 관한 실험적 연구
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | 홍군의 | - |
| dc.date.accessioned | 2017-02-22T06:23:46Z | - |
| dc.date.available | 2017-02-22T06:23:46Z | - |
| dc.date.issued | 2007 | - |
| dc.date.submitted | 56850-02-09 | - |
| dc.identifier.uri | http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002175279 | ko_KR |
| dc.identifier.uri | http://repository.kmou.ac.kr/handle/2014.oak/9463 | - |
| dc.description.abstract | Flow boiling heat transfer and pressure drop of water in a minichannel has been experimentally studied to investigate the effect of pressure. The results of experiments were compared with selected existing correlations. The experimental apparatus consists mainly of gear pump, flowmeter, pre-heater, pressurizer, condenser, and evaporator for control of water quality at the inlet of test section. The test section is a round minichannel of 1.73 mm inside diameter, made of 316 stainless steel. And the test section tube is heated by a direct DC current through the tube. The ranges of the major experimental parameters in this study are 100 kg/m2s of mass flux, 30～70 kW/m2 of heat flux and 0.0～0.3 of inlet vapor quality. The experimental result showed that the flow boiling heat transfer coefficients in a minichannel are in the range of 3～25 kW/m2K and they were affected by pressure and local mass quality while independent of heat flux. Flow boiling pressure drop was also affected by pressure. | - |
| dc.description.tableofcontents | 1 서론 = 1 1.1 연구배경 = 1 1.2 연구목적 = 2 2 선행연구 고찰 = 3 2.1 서론 = 3 2.2 대류비등 열전달 = 4 2.3 미니채널에서의 대류비등 열전달 = 9 2.3.1 실험연구 = 9 2.3.2 대류비등 열전달 상관식 = 12 2.3.3 2상유동 압력손실 상관식 = 16 2.4 선행연구 고찰 요약 = 18 3 실험장치 및 실험방법 = 31 3.1 실험장치 = 31 3.2 실험방법 = 36 3.2.1 단상유동 실험 = 36 3.2.2 대류비등 실험 = 36 3.3 데이터 처리 = 38 3.4 실험오차 분석 = 39 3.4.1 온도 측정 = 39 3.4.2 압력 측정 = 40 3.4.3 질량유속(Mass flux) = 41 3.4.4 열유속(Heat flux) = 42 3.4.5 열전달계수(Heat transfer coefficient) = 43 4 실험결과 및 고찰 = 56 4.1 단상유동 실험 = 56 4.2 대류비등 실험 = 57 4.2.1 대류비등 실험조건 = 57 4.3 대류비등 실험결과 = 57 4.3.1 열유속 및 건도변화에 따른 대류비등 열전달계수 = 57 4.3.2 작동압력 변화에 따른 대류비등 열전달계수 = 58 4.3.3 대류비등 압력손실 = 59 5 결론 = 66 참고문헌 = 67 | - |
| dc.language | kor | - |
| dc.publisher | 한국해양대학교 대학원 | - |
| dc.title | 세관 내 물의 대류비등 시 압력의 영향에 관한 실험적 연구 | - |
| dc.title.alternative | An Experimental Study of Flow Boiling in Water Flow through Minichannels : Effect of Pressure | - |
| dc.type | Thesis | - |
| dc.date.awarded | 2007-02 | - |
| dc.contributor.alternativeName | Hong | - |
| dc.contributor.alternativeName | Kun-Eui | - |
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