| Title |
Economic Feasibility of Various HVAC Systems for Commercial Building and Comparison of Energy Tariffs between Korea and USA |
| Authors |
고재윤(Jae-Yoon Koh) ; 박률(Yool Park) ; 서동현(Dong-Hyun Seo) |
| Keywords |
지열원 히트펌프 ; 생애주기비용분석 ; 투자회수기간 Ground source heat pump ; Life-cycle cost analysis ; Payback period |
| Abstract |
In this study, air conditioning systems include ground source heat pump (GSHP), are evaluated for economic feasibility. The building is modeled an air conditioned for 280kW scale. This analysis is compared with the energy tariff programs of Korea and USA. The objectives of this paper are to evaluate the cost-effectiveness of the GSHP and combined system using Life-Cycle Cost (LCC) analysis, and to carry out the sensitivity analysis of key parameters. The paper considered the cases including the base case of air source heat pump and the other two alternates for comparisons. The combined system is not only a cost-effective way to the low energy consumption but also a way to avoid a high initial investment. The variations of initial investment and energy rates give a significant effect on the total LCC and payback period. |