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      •   UMY Repository
      • 03. DISSERTATIONS AND THESIS
      • Students
      • Undergraduate Thesis
      • Faculty of Engineering
      • Department of Mechanical Engineering
      • View Item
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      EVALUASI UNJUK KERJA TERMAL PROSES DISCHARGING PADA PEMANAS AIR TENAGA SURYA THERMOSYPHON KAPASITAS 60 LITER YANG BERISI PHASE CHANGE MATERIAL

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      COVER (199.0Kb)
      HALAMAN JUDUL (887.0Kb)
      HALAMAN PENGESAHAN (636.1Kb)
      INTISARI (13.45Kb)
      BAB I (229.0Kb)
      BAB II (750.3Kb)
      BAB III (938.5Kb)
      BAB IV (2.583Mb)
      BAB V (7.954Kb)
      DAFTAR PUSTAKA (201.2Kb)
      LAMPIRAN (2.426Mb)
      Date
      2017-12-23
      Author
      MUHAMMAD, IQBAL
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      Abstract
      Solar water heater (SWH) is one of technology that uses solar energy as a source of energy. To this date, conventional SWH uses water as thermal energy storage. The use of water has deficiencies such as low energy density so that the volume is large. On the other hand, the phase change material (PCM) has a high energy density. In previous studies on SWH, the discharging process using discontinuous discharging method has not been specifically discussed so it is interesting studies. The purpose of this study was to analyze the characteristics of continuous discharging and discontinuous discharging on SWH containing PCM and investigating the ability of the 60 liters thermosyphon SWH tank system to produce hot shower requirements at the household scale. The study combines water as heat transfer fluid (HTF) and PCM as thermal storage together with water. The SWH system is positioned facing north to obtain maximum thermal radiation. Research begins with the process of charging followed by discharging process with 2 different methods. Continuous discharging research is carried out by throwing 2 LPMs of water in the TES tank into the environment constantly, while the discontinuous discharging is done by draining 4 LPM of water into the reservoir to produce a mixed temperature of 45 ° C and a volume of 20 liters per 15 minutes interval. The data taken during the charging process is the intensity of solar radiation, ambient temperature, temperature of HTF and PCM. The data recording was continued by recording the evolution of HTF and PCM temperatures during the discharging process, as well as creating a mixing table of hot and cold water in a discontinuous discharging process. The test results illustrate the rapid decrease in water temperature continuously using the continuous discharging method, while the use of discontinuous discharging method in SWH can increase the water temperature slowly. The average temperature of HTF can reach 60.94 ° C in sunny weather. In this condition, the tank can be used to meet the needs of hot water as much as 5 people with a temperature of 45 °C
      URI
      http://repository.umy.ac.id/handle/123456789/16776
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      • Department of Mechanical Engineering

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