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한국생물환경조절학회 / v.2, no.1, 1993년, pp.1-8 
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지하수를 이용한 양액냉각시스템 개발에 관한 기초연구
( A Fundamental Study on the Nutrient Solution Cooling System Utilizing Ground Water ) |
| 남상운;손정익;김문기; 서울대학교 농업생명과학대학 농공학과;서울대학교 농업생명과학대학 농공학과;서울대학교 농업생명과학대학 농공학과;
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| 초 록 |
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| Experimental and theoretical analyses were carried out to investigate the heat exchange characteristics of the nutrient solution cooling system utilizing ground water. The material of heat exchanger used in the experiment was polyethylene and the cross-flow type was adapted in which nutrient solution was mixed and ground water unmixed. For the exchanger surface area of 0.33$m^2$ and flow rates of ground water of 1-6$ell$/min, NTU(number of transfer units) and effectiveness of experimental heat exchanger were 0.1-0.45 and 10-35％, respectively. Therefore these results showed that the hydroponic greenhouse of 1,000$m^2$(300 pyong) with the ground water of 10$m^2$/day could cover about 55-70％ of maximum cooling load in summer. |
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| 키워드 |
| 양액냉각;지하수;직교류방식;유효성;전달단위수;수경온실;nutrient solution cooling;ground water;cross-flow exchanger;effectiveness;NTU;hydroponic greenhouse; |
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생물환경조절학회지 / v.2, no.1, 1993년, pp.1-8
한국생물환경조절학회
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199311922403937)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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