文档介绍：Solar aspects of papers
CONSTRUCTION AND OUT-DOOR TESTING OF A LOW COST, SOLAR COLLECTOR FABRICATED FROM PLASTIC “TIM” MATERIAL
L. Tóth, L. Horváth*, G. Mink *
Institute of Mechanical Engineering, Polytechnic of Dunaújváros, 2401 Dunaújváros, POBox 152, HUNGARY Tel: +36 25 551 100; Fax: +36 25 551 100; e-mail: ******@
*Research Laboratory of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, 1525 Budapest POBox 17, HUNGARY
Tel: +36 1 325 5992, Fax: +36 1 335 7892, e-mail: ******@
Abstract: The presently used, high quality solar collectors are designed to 6 bar pressure and for the use of antifreezing fluids as heat carriers. Their wide-spread application, however, is hindered in many countries, because their price is relatively high, it is about 200 euro/m2. It was assumed that from solar grade transparent insulation materials (TIMs) such atmospheric collectors can be fabricated that and do not need antifreezing material and might result in significant cost reduction in solar water heating.
In the present paper the results of the out-door testing of a plastic TIM collector of m2 area will be presented. The collector body is fabricated from 18 mm thick, three-walled polycarbonate structure with longitudinal channels between the walls. The two upper walls serve as double glazing. In the lower channels