설계자료와 모니터링 자료 분석을 통한 지열히트펌프의 지열에너지 이용량 비교
A Comparison of Geothermal Energy Utilized by GSHP between Real Monitoring Data and the Design Criteria
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We analyze the heating and cooling energy loads of the buildings in the geothermal utilization report submitted to Korea Energy Management Corporation (KEMCO) and extract the capacity factor (CF) according to building types. The estimated geothermalenergy through the World Geothermal Congress (WGC) criteria based on the CF is compared with the heating energy load of the building. It is also compared with the values predicted by means of statistics used in Korea which are annually published as the New & Renewable Energy Statistics. The geothermal heating energy estimated by means of WGC criterion is 91% of the designed thermal load of the buildings. But the estimated average heating geothermal energy predicted by means of statistics used in Korea is 307% of the designed load of the buildings. We also compared monitoring results of a ground source heat pump (GSHP) system from 24 January to 14 September 2014 with the design data of the geothermal utilization report submitted to KEMCO. The energy produced by the GSHP system under operation is analyzed and is compared with the values predicted by means of statistics used in Korea. The designed energy load of the building is just 48% of the estimated energy by the means of statistics of Korea. The energy produced in the load part and source part is 59% and 36% of the estimated energy, respectively. Therefore, it is needed to devise a reasonable criterion of estimating geothermal energy production through GSHP system in Korea.
Abstract
We analyze the heating and cooling energy loads of the buildings in the geothermal utilization report submitted to Korea Energy Management Corporation (KEMCO) and extract the capacity factor (CF) according to building types. The estimated geothermalenergy through the World Geothermal Congress (WGC) criteria based on the CF is compared with the heating energy load of the building. It is also compared with the values predicted by means of statistics used in Korea which are annually published as the New & Renewable Energy Statistics. The geothermal heating energy estimated by means of WGC criterion is 91% of the designed thermal load of the buildings. But the estimated average heating geothermal energy predicted by means of statistics used in Korea is 307% of the designed load of the buildings. We also compared monitoring results of a ground source heat pump (GSHP) system from 24 January to 14 September 2014 with the design data of the geothermal utilization report submitted to KEMCO. The energy produced by the GSHP system under operation is analyzed and is compared with the values predicted by means of statistics used in Korea. The designed energy load of the building is just 48% of the estimated energy by the means of statistics of Korea. The energy produced in the load part and source part is 59% and 36% of the estimated energy, respectively. Therefore, it is needed to devise a reasonable criterion of estimating geothermal energy production through GSHP system in Korea.
참고문헌 (20)
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