Audit Energy and Developing Photovoltaic (PV) Model for Refrigeration Laboratory Building Application

Wirajati, I Gusti Agung Bagus and Santosa, I Dewa Made Cipta and Muliati, Ni Kadek (2017) Audit Energy and Developing Photovoltaic (PV) Model for Refrigeration Laboratory Building Application. In: 2nd International Joint Conference on Science and Technology (IJCST) 2017, 27-28 September 2017, Bali-Indonesia.

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Abstract

Based on National energy policy, Blueprint National energy management 2005-2025 and Bali clean energy forum recommendation that building should be doing save energy efforts and apply renewable energy. Strategy and efforts to decrease energy consumption in building significantly can be done if the energy demand profile is known. Furthermore, depend on the audit energy result (energy demand) so it can be designed and analysis a photovoltaic model with good accuracy. As we known that in tropical countries such as Indonesia, the solar energy will be very beneficial because the peak energy load of the building occurs during the day where the use of the dominant energy of air conditioning system (AC) and at the same intensity of sunlight radiation is high. While at night most of the commercial building, such as laboratory are not used so that no operational use of energy and solar cell energy will not contribute because there is no sunlight. More specifically, Bali State Polytechnic as a leading institution in green building concept research should be more aggressive to conduct research in this field. This research will be carried out in two stages: energy building utility assessment /audit and photovoltaic application design. Detailed data retrieval will be conducted and the assessment is done by zoning and statistical analysis method, where the building is divided into several zones based on the difference of cooling load. Measurements will be conducted on room and environment temperature and humidity, power consumption of each building utilities, the intensity of radiation and sunlight temperature to get a detailed profile every hour of the day. Thus, it can be mapped profile of building energy usage so that it can be formulated efforts to get energy saving from the building and then can be planned the use of photovoltaic (PV) with Building Integrated Photovoltaic (BIPV) system. The output energy calculation method adopts the calculation model developed by RET Screen, the analysis is done by Life Cycle Cost (LCC) and Life Cycle Assessment (LCA) method, so that it will be get the right model from solar energy

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