Studi Simulasi Numerik Dan Eksperimental Unjuk Kerja Kolektor Surya V-Groove Absorber Dengan Penambahan Obstacle Berbentuk Segitiga Yang Disusun Secara Sejajar

Arieffani, Febry (2011) Studi Simulasi Numerik Dan Eksperimental Unjuk Kerja Kolektor Surya V-Groove Absorber Dengan Penambahan Obstacle Berbentuk Segitiga Yang Disusun Secara Sejajar. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Solar energy is one of the alternative and renewable energy sources that produces no pollutants. It is very easy to obtain, inexpensive, and plentiful, especially in countries located on the equator, such as Indonesia. The use of solar energy can be applied to many things, one of which is drying using a solar collector. To make a solar air heater more economical, its thermal efficiency should be increased. One effort to achieve this is to improve the heat transfer coefficient between the absorber and the fluid by increasing the convection heat transfer coefficient through the creation of turbulence in the heat transfer area. This can be achieved by creating disturbances in the airflow below the absorber through the addition of obstacles. The use of obstacles increases turbulence but also increases pressure drop. Therefore, it is necessary to determine the optimum spacing and size of the obstacles through numerical simulations using Gambit 2.2.30 and Fluent 6.2.16. The modeling results showed that the optimum obstacle size was M with a spacing of 1e. Experiments were then conducted using this obstacle. The solar collector system used a V-groove absorber collector with the addition of triangular obstacles made of zinc. Data collection was conducted by varying the fluid velocity by adjusting the flow rate to 0.5 m/s, 0.6 m/s, and 0.7 m/s, with data collection conducted between 10:30 AM and 12:30 PM. The cover glass and absorber temperatures, UL, and Qloss in the solar collector with obstacles were lower than those in the solar collector without obstacles. The useful energy and efficiency of the solar collector with obstacles were greater than those of the solar collector without obstacles. The highest useful energy of 42.14 W was achieved by the solar collector with obstacles on July 2, 2011, at 11:50 AM with a fluid inlet velocity of 0.7 m/s. The highest efficiency of the solar collector with obstacles was 8.21%, achieved on July 2, 2011, at 10:50 AM with a fluid inlet velocity of 0.7 m/s. The performance of the V-groove solar collector with the addition of obstacles was better than that of the V-groove solar collector without additional obstacles.

Item Type:	Thesis (Other)
Additional Information:	RSM 621.472 Ari s
Uncontrolled Keywords:	solar collector, v-groove absorber, aligned triangular obstacel, the total heat transfer coefficient, useful energy, the efficiency of the collector.
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ810.5 Solar energy
Divisions:	Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	magang .
Date Deposited:	21 Sep 2026 04:59
Last Modified:	21 Sep 2026 04:59
URI:	http://repository.its.ac.id/id/eprint/144732

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