| Summary: | 碩士 === 國立高雄應用科技大學 === 模具工程系 === 104 === This study is mainly using TRNSYS software and inputs the TMY2 weather data of Kaohsiung, Taiwan to simulate the hot water temperature output from flat-plane solar collector and evacuated tube solar collector. Observing the hot water temperature if make LiBr-H2O reaction, driven the absorption chiller, we can therefore choose trade-off design by evaluating coefficient of performance (C.O.P.).
The mainly simulation three sets of collector area: 20m2, 60m2, 100m2, storage volume 3 m3, mass flow rate 1 kg/s, and time from April to September. For the study, the hot water temperature allowable range of absorption chiller is from 70℃ to 95℃, the cooling water temperature is 24℃, and chilled water temperature is 6.7℃.
When collector area is 20m2, average hot water output temperature is 73.33℃ from flat-plane solar collector, and 87.1℃ from evacuated tube solar collector. When cooling water temperature at 24℃, the C.O.P. will rise as hot water temperature increasing, but it will slow down after 77℃. The C.O.P. of flat-plane solar collector case is about 0.774, and it is about 0.778 in evacuated tube solar collector case.
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