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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국농공학회 한국농공학회논문집 한국농공학회논문집 제51권 제6호
발행연도
2009.1
수록면
45 - 52 (8page)

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This study was conducted in the process that the basic plan of the formation of the thermal energy complex in the Iwon reclaimed land of Taean was being made. Targeting for the large-sized greenhouse to be made in this area, it examined the cooling and heating load and the amount of ventilation, and also analyzed the economic efficiency of heating. The research results are as per the below: The minimum ambient temperature of this area was measured on January 7, 2001, which was -18.7 ℃, and the maximum ambient temperature of this area was measured on July 24, 1994, which was 36.7 ℃. The maximum heating load was 39,011 MJ/h, but the date when the maximum heating load was not consistent with the date when the minimum temperature was measured. The maximum cooling load was 88,562MJ/h, It was approximately 2.3 times of the maximum heating load, which was measured at 14:00 hours on September 4, 2000. The maximum amount of ventilation heat was 138,639MJ/h. Assuming the rate of solar heat use as 10 %, 20 %, 50 %, and 100 %, the total sum of cost-benefit would be ₩-193,450,000, ₩-634,930,000, ₩-3,372,960,000, and ₩-9,850,420,000, respectively 20 years later. The break-even point of the geothermal heat pump would be about 4 years for 10 % use, about 3 years for 20 % or 50% use, and approximately 6 years for 100% use. It was found that 50 % use would be most advantageous. In case two systems are combined, the break-even point will be 10 years, 8 years, and 11years respectively.

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