Abstract
The method of determination of optimal working conditions of vertical ground heat exchanger for heat pump low temperature water heating system, providing minimum energy cost for heat production is presented in this article. It was determined that there is an optimum speed of a heat carrier to which minimum total cost of electricity for heating system in a whole corresponds when using vertical probes for heat pump heating system. The correlation between the characteristics of vertical ground heat exchanger (depth of the well, the intensity of selection of heat from the soil pipe diameter, the velocity of a heat carrier) in its optimal working conditions was found. It is shown that the optimum speed of a heat carrier in the lower circuit and relevant hydraulic loss depends on the depth of the well, the heat exchanger tube diameter and type of ground, weakly depend on the thermal characteristics of a heat carrier and are almost independent of temperature conditions of heat pump systems. The determined correlations for vertical ground heat exchanger characteristics can be used at the design stage of heat pump heating systems using ground heat for ensuring their maximum energy efficiency. thermal characteristics of a heat carrier and are almost independent of temperature conditions of heat pump systems. The determined correlations for vertical ground heat exchanger characteristics can be used at the design stage of heat pump heating systems using ground heat for ensuring their maximum energy efficiency.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
