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Type of publication: research article
Type of publication (PDB): Straipsnis konferencijos medžiagoje Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or Scopus DB conference proceedings (P1a)
Field of Science: Mechanikos inžinerija / Mechanical Engineering (T009)
Author(s): Ziemelis, Imants;Putans, Henriks;Jasinskas, Algirdas;Kancevica, Liene
Title: Investigation of air heating solar collector with energy concentrator
Is part of: Engineering for rural development [elektroninis išteklius] : 15th international scientific conference, May 25-27, 2016: proceedings. Jelgava: Latvia University of Agriculture, 2016, Vol. 15
Extent: p. 312-317
Date: 2016
Keywords: Solar collector;Air heating;Solar radiation concentrator
Abstract: The paper discusses the procedures of development and experimental investigation of the solar collector for air heating, using a solar energy concentrator. The collector consists of the solar energy concentrator, made of polished stainless sheets bent according to parabola with total aperture area 3.6 m2. In the focus of the concentrator a heat absorber tube assembled from specific form separate aluminium elements with a wall density 0.15 mm and painted in black tarnished colour is placed. The form of absorber elements is creating a turbulent air flow in the absorber tube, which increases the heat exchange through its wall. By a centrifugal ventilator the air flow of changeable intensity in the absorber tube has been created. The electric motor of the ventilator was fed by direct current produced by an amorphous silicon flexible photovoltaic module. On sunny September 11, 2015 day the efficiency of the collector was 73.7 %. The heated air temperature increment reached 57.3 ºC. Such air can be used for room heating or drying needs
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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