100% 에너지자립 제로에너지주택을 위한 비용효과적 신재생 설비시스템 최적구성에 관한 연구 Cost-Effective Optimal Configuration of Renewable Energy Equipment System for 100% Self Sufficient Zero Energy House
최민주
(Dept. of Architectural Engineering, Hanbat National Univ.)
,
백영민
(Dept. of Architectural Engineering, Hanbat National Univ.)
,
윤종호
(Dept. of Architectural Engineering, Hanbat National Univ.)
Purpose: The domestic thermal insulation standard value has significantly increased to realize the Zero Energy House and many passive houses or zero energy houses are being built recently. Passive technology, which is represented by high thermal insulation and high density, shows relatively stable i...
Purpose: The domestic thermal insulation standard value has significantly increased to realize the Zero Energy House and many passive houses or zero energy houses are being built recently. Passive technology, which is represented by high thermal insulation and high density, shows relatively stable implementation by development of building materials and accumulated construction experience. On the other hand, there are not matured technologies for heating and cooling, hot water supply and ventilation including new and renewable energy. This study investigated the possibility of constructing optimal renewable energy and facilities system in terms of cost and effectiveness for zero energy houses that can achieve 100% of energy independence rate at current level. Method: The target building is a single story house with a floor area of $100m^2$ located in Gyeonggi-do. Outer wall and roof floor are composed of 200mm SIP (Structural Insulation Panel) structure and window is vacuum window with $U=0.5w/m^2^{\circ}C$. As a building equipment, this study considered following systems: ground source heat pump (GSHP), air source heat pump (ASHP), electric heating boiler (EHB), electric cable heating (ECH), electric air conditioner (EAC), solar domestic hot water system (DHWS), and solar PV. Finally, this study selected four combinations of systems (GSHP, ASHP+EAC, EHB+EAC, ECH+EAC) for the investigation. Result: This study assumed that all the loads in the building are covered by electric energy, and the calculation of the annual energy cost was based on the current electric charge system. Therefore, all loads are supplied by domestic electricity except GSHP. In addition, this study assumed that all renewable energy facilities for 100% energy self-reliance are supplied by solar power and then calculated the capacity to cover all household electricity with PV to derive the range of required PV capacity. Finally, this study calculated the initial investment cost range for each system configuration and the investment payback period, and determined the cost effective system configuration.
Purpose: The domestic thermal insulation standard value has significantly increased to realize the Zero Energy House and many passive houses or zero energy houses are being built recently. Passive technology, which is represented by high thermal insulation and high density, shows relatively stable implementation by development of building materials and accumulated construction experience. On the other hand, there are not matured technologies for heating and cooling, hot water supply and ventilation including new and renewable energy. This study investigated the possibility of constructing optimal renewable energy and facilities system in terms of cost and effectiveness for zero energy houses that can achieve 100% of energy independence rate at current level. Method: The target building is a single story house with a floor area of $100m^2$ located in Gyeonggi-do. Outer wall and roof floor are composed of 200mm SIP (Structural Insulation Panel) structure and window is vacuum window with $U=0.5w/m^2^{\circ}C$. As a building equipment, this study considered following systems: ground source heat pump (GSHP), air source heat pump (ASHP), electric heating boiler (EHB), electric cable heating (ECH), electric air conditioner (EAC), solar domestic hot water system (DHWS), and solar PV. Finally, this study selected four combinations of systems (GSHP, ASHP+EAC, EHB+EAC, ECH+EAC) for the investigation. Result: This study assumed that all the loads in the building are covered by electric energy, and the calculation of the annual energy cost was based on the current electric charge system. Therefore, all loads are supplied by domestic electricity except GSHP. In addition, this study assumed that all renewable energy facilities for 100% energy self-reliance are supplied by solar power and then calculated the capacity to cover all household electricity with PV to derive the range of required PV capacity. Finally, this study calculated the initial investment cost range for each system configuration and the investment payback period, and determined the cost effective system configuration.
Ju-Hyung Lee, A Study on Thermal Performance of Passive House, Ulsan University Master Thesis , 2016
Hyo-Mun Lee, Evaluation of Power Performance Loss Elements depending on ambient Condition of BIPV System, Hanbat National University Master Thesis, 2015
Jong-Ho Yoon, Technical Approach Method for Zero Energy Building and the Integration of RE Systems, Journal of The Architectural Institute of Korea, Vol.58, No. 3, 2014, pp32~37
"Solar Pro" www.lapsys.co.jp
Jong-Ho Yoon, ZEB Technology Status and Implications through Metering Case of 6 Zero Energy Houses in Jukdong, Daejeon ,Journal of The Korea Green Building Council, Vol.16, No. 4, 2014, pp38~52
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