| Title |
A Case Study on Economic Analysis of a Solar Water Heating System and a Ground Source Heat Pump System Applied to a Military Building |
| Authors |
Lee, Jong-Chan ; Park, Young-Ho ; Lee, Ghang ; Lee, Sang-Ho |
| Keywords |
New-Renewable Energy Sources ; RETScreen ; Welfare Facility in Military |
| Abstract |
This study is to analyze the performance of SWH(Solar Water Heating) and GSHP(Ground Source Heat Pump) systems by evaluating their energy efficiency and LCC(Life Cycle Cost) as being applied to the ○○hall as a selected building in the Army. The ○○hall, used as bathrooms, dining rooms, accommodations and offices, has reinforced concrete structure system with three floors above the ground and one underground, and its total floor area is approximately 2,917㎡. Two energy simulations are conducted to predict the yearly cooling and heating energy of the selected building: One is for analysis of an air-conditioning energy consumption using the e-Quest program, and another is for two new-renewable energy facilities as a water heating source using the RETScreen. The installed capacity of two new-renewable energy facilities is determined according to the 5% level of total standard construction cost. As a briefly result, SWH system is more energy-effective than GSHP system. Considering the break-even point, it is expected that SWH can take only 3 years 11 months to pay for itself in savings while the investment of GSHP can be recovered in more than 16 years 6 months. |