Exergy optimization of parameters of a heat pump heating system

Abstract

Relevance: due to the fact that our country does not have its own production of heat pumps that meet modern world requirements, the Uzbek market offers products from foreign companies that produce similar equipment. At the same time, today the production of heat pumps in the world is subordinated, first of all, to the specific interests of the manufacturing countries (this refers not only to climatic features, but also to the level of applied construction technologies, architectural, planning and engineering solutions, the level of technology in the production of heat pump equipment, market needs and other factors). Therefore, the use of imported equipment and blind copying of foreign projects for the conditions of Uzbekistan can not only lead to suboptimal solutions. The feasibility of using heat pumps and the optimal modes of their operation for each specific facility can be determined only on the basis of completed thermodynamic and technical and economic calculations.

Aim: to show the possibility of using the thermoeconomic method to optimize the operating modes of a steam compression heat pump unit operating in an autonomous heating system of a municipal facility

Methods:. exergy analysis methods were used during development. When optimizing the parameters of heat pumps, the system of compiled equations was differentiated

Results: confirmed by calculation using the optimization model proposed on the basis of the exergy analysis method for the parameters of heat pumps when heating the premises of a building. An important advantage of the method is the accuracy of the thermodynamic calculation. Real calculations show that it is possible to take into account exergy losses during heat transfer through the elements of the system.