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Analysis of thermotechnical parameters of air-water heat pump as a part of the radiator system of heat supply of the administrative building

100%

Basok B. , Nedbailo O. , Bozhko I. , Marteniuk V.

tom Vol. 6, nr 3

97--103

The description of original technical decision of using heat pump for heating part of administrating building is described. The hydraulic connection scheme has been developed and selection of heat devices was made for it. The energy efficiency for using heat pump in heating season is analyzed. Based on the obtained experimental data, the coefficient of performance of the heat pump was calculated for the above mode of operation of the heat supply system. With such indicators, a significant saving of thermal energy is achieved in comparison with the use of a centralized heat supply system.

A Two-dimensional Numerical Model of Heat Exchange in the Soil Massif During the Operation of a Shallow Horizontal Soil Heat Exchanger

88%

Basok B. , Pavlenko A. , Nedbailo O. , Bozhko I. , Moroz M.

tom Tom 25

274--281

The current article uses a two-dimensional numerical model to represent the results of theoretical studies of the heat exchange in the soil massif during the operation of a shallow horizontal soil heat exchanger. The analysis of literature sources showed that one of the important conditions for the effective operation of a shallow-soil heat exchange is its rational design parameters, such as the total length of the pipeline, the diameter of the pipe, the distance between the axis of the adjacent pipes, the depth of the heat exchanger placement, etc. A two-dimensional heat exchange model in the soil mass was developed, which made it possible to investigate the operation of a shallow horizontal soil heat exchanger. It was found that the step between the axis of the adjacent pipes of the multi-loop heat exchanger, which is 0.95 m, is optimal when creating a shallow horizontal soil heat exchanger in the soil conditions of Kyiv.