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논문 기본 정보

자료유형
학술대회자료
저자정보
Li Xuesong (경상대학교) HyoMJin Jeong (경상대학교) HanShik Chung (경상대학교)
저널정보
한국동력기계공학회 한국동력기계공학회 학술대회 논문집 2009年度 秋季學術大會 論文集
발행연도
2009.11
수록면
286 - 297 (12page)

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초록· 키워드

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The research goal was to develop a new solar water heater system (SWHS) that used a solar bubble pump instead of an electric pump. The pump was powered by the steam produced from an evacuated tube collector. Therefore, heat could be transferred downward from the collector to a hot water storage tank. The designed system consisted of two sets of heat-pipe evacuated tube collectors, a solar bubble pump installed at an upper level and a water storage tank with a heat exchanger at a lower level. Discharge heads of 1 and 5 m were tested. The bubble pump could operate at the collector temperature of about 90-100oC and vapor gage pressure of 0.8 - 0.9 bar. It was found that water circulation within the SWHS depending on the incident solar intensity and system discharge head. Experimental investigations are conducted to obtain the system thermal efficiencies from the hourly, daily and long-term performance tests. The thermal performance of the proposed system is compared with conventional solar water heaters. Results show that the proposed system achieves system characteristic efficiency 10% higher than that of the conventional systems use electric pump if take the consumption of electric power into account. And the former is a zero carbon system.

목차

Abstract
1. Introduction
2. Experimental setup
3. System operation
4. System analysis
5. Results and discussion
Notation
Acknowledgement
Reference

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