Yoomak, Suntiti
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Item type:Publication, Solar water heating in residential building(2019-07-01); ; ; Songsukthawan, PanapongThe electrical consumption has been rapidly increased in the past few decades. However, environment concern and depleting of fossil fuel lead to raise of alternative energy. One of the applications for solar energy that has gain significant attention is solar thermal for watering heating that can replace electricity. This paper aims to presents feasibility on solar water heating for residential building in Thailand. The analysis has been done on both energy performance and economic perspective using RETscreen software and Bangkok, Thailand as case study location in order to verify the feasibility of solar water heating application in residential building. The result has shown the potential of solar water heating system application in residential building as a replacement to conventional electrical water heating. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, The study of economic effects when different distributed generators (DG) connected to a distribution system(2018-06-25); This paper presents the study and analysis of an economic impact on distributed generator (DG) installation connected to the 22-kV distribution system of the Thanyaburi substation of Provincial Electricity Authority (PEA), Thailand, which covers 8.18 km of distribution line distance and has four BUS connected with DG. In order to determine the optimal size and type of DG, the DIgSILENT PowerFactory software is used to simulate the DG connected to the distribution system. The DG used in case studies has three types: solar power, wind power, and biomass; each type has a size varied from 1-8 MW. For economic evaluation, the indices of discount payback period (DPB) and internal rate of return (IRR) are employed. The results indicate that solar power and wind power which are high power generation can be more achievable economic performance than low power one due to better the ratio between investment costs and megawatts. However, the biomass distributed generation of 1 MW gives the best DPB (4.78 years) and IRR (25.27%), as well as more efficient in electrical generation than the solar power and wind power.