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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Broyda Vladimir Aronovich candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 Dorofeenko Nikolay Sergeevich design engineer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it LLC Production Enterprise «TechVent» The organization address: 421001, Russia, Kazan, Nigmatullina st., 1/47
Title of the articleEfficiency of direct free cooling in an air conditioning system for rooms with significant heat input
Abstract.Problem statement. Free cooling (FC) in the air conditioning system reduces the energy consumption of the compressors of the refrigeration machine, saves the life of the compressors, its widespread implementation is an urgent task. The area of rational use of direct free cooling substantially depends on: the characteristics of the local climate, the requirements for the microclimate of the room, and the heat input to the room in a significant part of the year. The purpose of the study is to identify the effectiveness of direct free cooling, based on a calculation based on generally available climatological information, taking into account the operation of an air cooler, steam humidifier, main fans, performed for the annual cycle of operation of the air conditioning system. Results. The main results of the study are in the proposed method for assessing the energy efficiency of direct free cooling and the calculations for different climatic regions of Russia, confirming its high efficiency and, therefore, the feasibility of use. Conclusions. The significance of the results obtained for the construction industry lies in the fact that the use of free cooling systems together and instead of engine cooling systems with a fairly wide range of microclimate requirements is possible for different climatic zones. It is suitable for a large group of rooms with heat and can significantly reduce energy costs for air conditioning.
Keywords.conditioning, free cooling, energy consumption, power, efficiency.
For citations:Broyda V.A., Dorofeenko N.S. Efficiency of direct free cooling in an air conditioning system for rooms with significant heat input // Izvestiya KGASU. 2019. №4(50) P.279-287.


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