Pengaruh Diameter Pipa Absorber Bahan Tembaga Terhadap Kinerja Parabolic Trough Collector (Ptc)

Yumsani, Nandia Dwi (2021) Pengaruh Diameter Pipa Absorber Bahan Tembaga Terhadap Kinerja Parabolic Trough Collector (Ptc). Diploma thesis, Politeknik Negeri Jember.

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Abstract

Parabolic Trough Collector uses copper absorber pipe with various diameters (9.5 mm, 12.7 mm and 19.05 mm) with a length of 1 m absorber pipe. The choice of diameter on the absorber pipe is expected to increase the efficiency and maximum temperature produced. This Parabolic Trough Collector has a focal point of 12cm using an aluminium plate reflector with a size of 50 cm x 70 cm with a thickness of 0.3 mm. The test was carried out on the roof of the Engineering Building, Jember State Polytechnic with 3 repetitions. The highest water temperature was found at a diameter of 9.5 mm at 63.2°C at 12.10 WIB while the highest average efficiency value was found at a diameter of 9.5 mm producing 14.28%. This efficiency value is influenced by several factors, including solar irradiation, outlet and inlet temperature differences, and mass flow rate. The highest total average heat transfer rate is at a diameter of 9.5 mm at 42.3 W. Kata Kunci: Parabolic Trough Collector,Pipe Absorber, Diameter, Efficiency, Heat transfer

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