Abstract
3 JSC NIIMosstroy, Moscow, Russia Abstract: This paper reports the results of study on the effectiveness of using low-grade ground heat in heat pump systems under the climatic conditions of Russia. The study was performed to collect data for using the software package INSOLAR.GSHP.12, which simulates the non-stationary thermal conditions of ground source heat pumps (GSHPs) over several years of operation.The described study was performed with the financial support of the Ministry of Education and Science of Russia. Contract ID RFMEFI57914X0026.
Highlights
Ground source heat pumps (GHSPs) are widely used in regions with moderate climates [1]
During ground source heat pumps (GSHPs) operation, the body of soil surrounding the ground heat exchanger is subject to multiple freezing and thawing events
The method allows for obtaining a solution regarding a new function that represents the impact of the heat sinks on the natural soil's thermal conditions and equals the difference between the natural soil's temperatures and the temperatures of soil containing heat sinks. Using this method for simulating the thermal conditions of low-grade ground heat gathering systems enables the bypass of the difficulties associated with the approximation of external impacts on the heat collection system as well as the use of data regarding the soil's natural thermal conditions obtained from weather stations
Summary
Ground source heat pumps (GHSPs) are widely used in regions with moderate climates [1]. Using this method for simulating the thermal conditions of low-grade ground heat gathering systems enables the bypass of the difficulties associated with the approximation of external impacts on the heat collection system as well as the use of data regarding the soil's natural thermal conditions obtained from weather stations The method makes it possible to partially take into account the whole range of factors Average monthly ground temperatures at a depth of 16 m for several Russian cities [0 C]
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