RAY ABSORPTION ABILITY BY PREMISES WITH INSOLATION PASSIVE HEATING SYSTEM

The results of research were presented on the calculation expressions to define values of absorptance (α hp ) and reduced-absorptance (τ te α hp ) of premises with insolation passive heating systems (IPHS). When the research, premise IPHS considered as flat-plate solar collector, which has a greater thickness of air layer between the translucent coating and light-absorbing panel. It is assumed that the flux density of solar radiation passing through the translucent enclosure and entering inside the heated premises, isotropically distributed over the surfaces of the elements of its interior due to multiple internal reflection. From the results of researches was proposed calculation expressions to determine (α hp ) and (τ te α hp ) of premises with IPHS and presented a practical example of their implementation.

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