Choosing an effective heat recovery scheme in the ventilation system of the underground parking of a shopping mall

Energy saving is an important task for the conservation of natural resources, which is relevant for all sectors of the national economy of developed countries. One of the main methods of energy saving is the use of secondary energy resources in utility systems of buildings, including the use of various types of heat exchangers as heat recovery units of the discharged ventilation air. However, the issue of effective use of heat recovery units in the climatic conditions of Russia, especially for the South Ural region, has not been sufficiently studied. The research conducted by the authors is aimed at developing methods for evaluating the efficiency and appropriateness of heat recovery in ventilation systems of various buildings with reference to climatic conditions. The paper considers the issues of improving the energy efficiency of ventilation systems in an underground single-level parking lot for 250 parking spaces in a shopping mall with a total area of 10200 m2 in the city of Magnitogorsk.