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Heat Pipe Science and Technology, An International Journal

ISSN Print: 2151-7975
ISSN Online: 2151-7991

Archives: Volume 1, 2010 to Volume 8, 2017

Heat Pipe Science and Technology, An International Journal

DOI: 10.1615/HeatPipeScieTech.v6.i3-4.80
pages 205-215

EXPERIMENTAL INVESTIGATIONS OF ALUMINUM THERMOSYPHONS FOR A PHOTOVOLTAIC THERMAL MODULE

Sergey Khairnasov
Heat Pipes Laboratory, Heat and Power Department, National Technical University of Ukraine "KPI", 709, 6 Politekhnichna Str, Kiev, 03056, Ukraine
Boris Rassamakin
Heat Pipes Laboratory, Heat and Power Department, National Technical University of Ukraine "KPI", 709, 6 Politekhnichna Str, Kiev, 03056, Ukraine
Dmytro Kozak
Heat Pipes Laboratory, Heat and Power Department, National Technical University of Ukraine "KPI", 709, 6 Politekhnichna Str, Kiev, 03056, Ukraine

ABSTRACT

The paper presents an approach to the design of aluminum profile thermosyphons (APT) for the facade integrated photovoltaic thermal module (PVT). The profiles for aluminum grooved heat pipes are used as APT's shells. In this case, APTs perform a complex role: they simultaneously serve as an absorbing surface, as highly thermal conductive device, and as a cooling system for photovoltaic cells. The maximum heat transport capacity and thermal resistance of APTs intended for use in PVT collectors are shown. Researches were conducted for the APTs with outer diameters of 8.1 mm, 10 mm, and 14 mm; tilt angles changed within the range 5−90°, and the temperatures changed from 20°C to 80°C. Also, the work presents the results of research which showed that the efficiency of PVT based on APTs with parameter X = (0.02−0.06) K·m2/W is 0.35−0.60. Besides, the PVT can further produce electricity of up to 135 W/m2 and maximum heat output of up to 457 W/m2 at the incident solar radiation of 900 W/m2. Experimental test was carried out on the mock-up of a facade PVT collector with dimensions 1340 × 500 mm. Such a design of the PVT collector could be easily integrated into building constructions.


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