Abstract
The excessive use of fossil fuels has led to global warming and air pollution. To solve these problems, interest in new renewable energy system (NRE system) has increased in recent years. In particular, photovoltaic, solar thermal heating, fuel cell and ground source heating system are actively implemented for achieving the zero energy building. Since the initial investment cost of the NRE system is quite expensive, it is necessary to conduct a feasibility study from the life cycle perspective. Therefore, this study aimed to develop the process for the implementation of NRE system in a building for the optimal design. This study was conducted with four steps: (i) establishing the basic information for the system installation; (ii) selecting key factors affecting system performances; (iii) making possible alternatives of the system installation; and (iv) selecting optimal system by considering environmental and economic effect. The proposed process could enable the final decision-maker to easily and accurately determine the optimal design of the NRE systems from the economic and environmental efficiency in the early design phase. The process could also be applied to any other NRE system and could be extended to any other country in the global environment.
Highlights
The story of the development and use of energy begins with the story of the human civilization.the fossil fuel deposits are limited and are expected to be depleted by this century
By conducting a multilateral analysis on the results of the energy simulation, the energy generation effect was evaluated by applying the FC systems as NRE systems
This study aimed to develop the process for the implementation of NRE system in a building for the optimal design by considering environmental and economic effects in South Korea
Summary
The story of the development and use of energy begins with the story of the human civilization. Besides the issue of energy supply and demand, the tremendous amount of fossil fuel usage has produced greenhouse gases (GHGs), and it has caused global warming around the world To cope with these problems, in 1997, 180 countries signed the Kyoto protocol which is an international agreement linked to the United Nations Framework Convention on Climate Change, which commits its parties by setting internationally binding emission reduction target [6,7,8,9,10]. The types of NRE micro-generation systems in South Korea include photovoltaic system (PV system), solar thermal energy system (STE system), fuel cell system (FC system), and ground source heat pump system (GSHP system) [25,26,27,28,29] These systems can replace the existing boiler/chiller system by supplying thermal and electric energy required in a building [30,31,32,33]. Reasonable NRE system by considering environmental and economic effects can be implemented to the target building and the implementation of NRE system can be promoted
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