INFLUENCE OF CONSTRUCTION OF TRANSPARENT COVERING ON EFFICIENCY OF CONCRETE HEAT TREATMENT IN SHUTTERING FORMS WITH USING SOLAR ENERGY

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Abstract


The shuttering forms, equipped by inventory frames with transparent cover, are the simple solar energy equipment for heat treatment of reinforced concrete elements during their manufacturing at the plants. They are similar with solar collectors by their design and thermal-physical processes, taking place in them, with difference that the heat sink is hardening concrete. The research results of influence of transparent cover construction on efficiency of concrete heat treatment in shuttering forms with employment of solar energy in different climatic conditions are given in the article. The volume of energy, consumed and lost by concrete during its direct heating by solar energy in the simple solar energy equipment like solar collector, depends on the transparent cover construction. Under other same conditions, the increase of cover layers affects its transparency, which is characterized by the solar energy transmittance, but in this case, it reduces heat losses in environment, which are characterized by the coefficient of heat losses through transparent cover. One-layer and two-layer transparent covers are chosen for assessment of efficiency of heat treatment of concrete elements, because the increase of cover layers more than two reduces intensity of the heat sink warming in the daytime and it is accepted by scientists in solar energy field as pointless. Optimal number of transparent material layers in cover construction is determined based on energy assessment in result of thermal- physical calculation and experimental research. The economic losses for production of transparent cover due to the increase of its layers are taken into account in addition with energy assessment


DMITRY D KOROTEEV

Principal contact for editorial correspondence.
koroteev_dd@rudn.university
Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation 6 Miklukho-Maklaya Street, Moscow, 117198, Russian Federation

Candidate of Technical Science, Associate Professor of department of architecture and civil engineering, Peoples' Friendship University of Russia (RUDN University). Scientific interests: technology of concrete works, heat treatment of concrete and reinforced concrete elements.

MAKHMUD KHARUN

kharun_m@rudn.university
Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation 6 Miklukho-Maklaya Street, Moscow, 117198, Russian Federation

Candidate of Technical Science, Associate Professor, of department of architecture and civil engineering, Peoples' Friendship University of Russia (RUDN University). Scientific interests: modified concretes on composite binders

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