EVALUATION OF HEAT LOSS COEFFICIENTS IN SOLAR FLAT PLATE COLLECTORS

摘要: Flat Plate Collector (FPC) is widely used for domestic hot-water, space heating/drying and applications requiring fluid temperature less than 100 o C. The absorber plate of the FPC transfers solar energy to liquid flowing in tubes. flow can takes place due thermosyphon effect or by forced convection. However, certain absorbed lost atmosphere higher plate. collector efficiency dependent on which turn nature inside tube, insolation, ambient temperature, top loss coefficient, emissivity glass cover, slope, etc. objective present work evaluate coefficient considering these aspects flat both theoretically experimentally. A test setup fabricated experiments conducted study under laboratory conditions.