Bozhko I. Combined heat pump system of heat supply based on ground heat exchangers

The dissertation is devoted to the solution of the actual problem – the study of the optimal operation of existing and development of new energy-efficient heat and water pump systems of heat supply. Based on the modeling, the feasibility of using horizontal ground heat exchangers of shallow (up to 2 m) occurrence in heat pump heat supply systems is substantiated. A complex of theoretical and experimental researches of their work in the composition of experimental heat pump heat supply systems is fulfilled. The optimal design of a horizontal ground heat exchanger and the condition of seasonal extraction of natural heat of soil are established. On the basis of the obtained results, a combined heat pump heat supply system was developed and implemented on the basis of ground heat exchangers and the joint work of low-temperature heating devices of various constructional designs was investigated. The method of calculation of the basic parameters of the horizontal ground collectors of shallow occurrence is developed. The use of ground heat exchangers in the air conditioning system for the restoration of the ground temperature in the summer period is proposed.