Affiliation:
1. Peter the Great St. Petersburg Polytechnic University
Abstract
THE RELEVANCE of the research lies in the need to use waste heat, which is a byproduct of the operation of energy machines, to increase the efficiency of their operation. Using the example of introducing a system for recovering condensation heat and using it in an air heating system, the possibility of beneficial use of waste heat generated by refrigeration machines used to freeze the ice arena of a sports complex was confirmed.TARGET. Development of a system for recycling the condensation heat of refrigeration machines to use waste heat when organizing air heating of a building.METHODS. Study of engineering systems for the possibility of beneficial use of low-grade heat. Organization of a system for recycling the condensation heat of refrigeration machines in a sports complex. Installation of a measuring stand, including, among other things, a heat meter, a heat calculator, a controller for transferring measurement results to a personal computer, carrying out the necessary calculations, their subsequent processing and analysis.RESULTS. At a facility with constant operation of refrigeration machines and a need for heating, a condensation heat recovery system has been introduced. The possibility of implementing the proposed system without long-term downtime of the main equipment is shown.CONCLUSION. The introduction of a condensation heat recovery system increased the energy efficiency of the system, which allowed for 2.6 million rubles. reduce utility bills of the heat supply organization, as well as reduce thermal pollution of the environment by at least 1.4 GW per year.
Publisher
Kazan State Power Engineering University
Reference16 articles.
1. Simbirev O.V. Prospects for modernizing heating and ventilation systems of buildings. Colloquium-journal. No. 13-2(37)-2019. pp. 207–208.
2. Lekomtsev P.L., Isupov R.Yu. Increasing the energy efficiency of cold storage / AgroEcoInfo. – 2021. No. 3(45). DOI 10.51419/20213312.
3. Isupov R.Yu. Methods for regulating the performance of air-cooled condensers in industrial refrigeration units // Materials of the XX All-Russian Scientific and Practical Conference of Young Scientists, Graduate Students and Specialists “Young Scientists - Agro-Industrial Complex of the Far East”. – 2020. pp. 22-27.
4. Kondrashov, A. Energy conservation and the use of the heat of refrigeration of ice arenas to heat the school of figure skating of St. Petersburg / A. Kondrashov, M. Egorov // Journal of Physics: Conference Series: 5th International Workshop on Heat/Mass Transfer Advances for Energy Conservation and Pollution Control, IWHT 2019, Novosibirsk, August 13–16, 2019. – Novosibirsk: Institute of Physics Publishing, 2019. – P. 012063. – DOI 10.1088/1742-6596/1369/1/012063.
5. Korotkii I.A., Neverov E.N., Prib I.A. and others. Design solutions for a refrigeration machine with condensation heat recovery // Refrigeration equipment. – 2020. No. 6. P. 30-33.