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Ecological and energy aspects of using the combined solar collectors for low-energy houses

Stepan Shapoval1, Pavlo Shapoval2, Vasyl Zhelykh1, Ostap Pona1, Nadiya Spodyniuk1, Bogdan Gulai1, Olena Savchenko1, Khrystyna Myroniuk1
1 Department of Heat and Gas Supply, and Ventilation, Lviv Polytechnic National University, 12, S. Bandera St., 79013 Lviv, Ukraine 2 Department of Analytical Chemistry, Lviv Polytechnic National University, 12, S. Bandera St., 79013 Lviv, Ukraine
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The promising environmentally friendly solar heating systems are based on the combined solar collector, in which the absorber made of constructive material of low-energy house was described. The usage of the combined absorber with an external protection of low-energy house ensures sufficient efficiency of combined solar collector and reduces its cost. Three-factor planning matrix with the factors interaction was developed. Analytical and graphical dependencies of efficiency of the combined solar collector with a transparent coating and without it on the angle of incidence and intensity of heat flow were shown. The efficiency of transparent coating which protects the absorber of solar collector was researched. Ecological effect of using the combined solar collector was calculated.

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