Solar Gain in the Buildings of Unconventional Shape

An account the solar heat gain of the rooms from the sky through the light apertures is an important stage in the determining the energy efficiency class of buildings. This issue has been studied in sufficient detail for rooms and light apertures of a conventional shape (rectangular rooms and light apertures). The article proposes principles for determining solar heat gains for rooms and light apertures of unconventional shape. A classification of unconventional objects and their elements is proposed. Heat gains from scattered solar radiation were determined using the mathematical apparatus of point calculus. For the main variants of structural forms there have been developed point equations which form the field of scanning points.The elementary values of solar heat gains were determined within the boundaries of the elementary pyramids, the vertices of which are located at the calculated points, and their faces pass through three or four adjacent scanning points on the surface of the light aperture. The sum of all elementary values gives the total value of solar heat gain entering an unconventional room through an unconventional light aperture.