SEASONAL HEATING CAPACITY AND THERMAL EFFICIENCY OF FLAT SOLAR WATER HEATING COLLECTORS MADE OF TRANSLUCENT PLASTICS WITH BOTTOM ABSORPTION OF RADIATION
Keywords:
seasonal heating capacity, thermal efficiency, capacitive solar radiation absorber, bottom absorption beamAbstract
The article presents a method for processing the results of experimental studies of the daily amount of useful heat accumulated in a capacious receiver of flat solar water heating collectors with bottom absorption of solar radiation and insulated with flat bases. The calculated expression and the results of comparative experimental studies in full-scale conditions of the temperature
regime and thermal efficiency of the above solar collectors located horizontally in the meridional direction along the cardinal directions, i.e. the long axis of the flat base of the collectors is directed from east to west.
As is known, the methods of thermal testing of solar collectors with flow-through radiation receivers, due to their low inertia compared to collectors with capacious receivers, are not acceptable for their testing.
Due to the fact that it is useful in a solar collector with capacious receivers-absorbed and converted into low potential heat from solar energy radiation accumulates during daylight hours. To process the measurement results of the main experimental data, we have improved and applied an integral method based on the use of average daily (or averaged over a certain period of daylight)
values of the measured parameters and the corresponding thermal characteristics.
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