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Определение факторов, влияющих на общий коэффициент теплопотерь в вакуумном U-образном солнечном тепловом коллекторе

Figure 1 - Comparing the effect of the thermal emissivity between the exterior surface of the inner glass tube (ƹ5​) and the interior surface of the outer glass tube (ƹ6​) on the total heat loss coefficient

Comparing the effect of the thermal emissivity between the exterior surface of the inner glass tube (ƹ5​) and the interior surface of the outer glass tube (ƹ6​) on the total heat loss coefficient