보육시설에 적용된 진공관식 태양열 급탕 시스템의 하절기 에너지성능 실증평가
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Renewable energy systems are expected to play a significant role in resolving issues of energy resource depletion and climate change by using infinite and clean natural energy. In this study, we carried out the performance evaluation on energy production and use of solar water heating system installed in a nursery school in summer season. The results showed the energy savings expected from the application of the solar water heating systems despite the irregular energy production due to the effect of the weather. As a result, the energy production of the solar water heating system was greatly dependent on the weather conditions and solar radiation. Collector efficiency refers to the changing production of the collector by the solar radiation, which is affected by the weather conditions, and the collector efficiency curve shows the variations, for which the solar radiation was the greatest influencing factor. Hence, solar hot water system the hot-water load of the building and the weather conditions, and a long-term empirical assessment of this relationship is needed.