Temperatures and Heat Flows in a Soil Enclosing a Slinky Horizontal Heat Exchanger

Energies

Pavel Neuberger¹  Radomír Adamovský² 

[1] Department of Mechanical Engineering, Faculty of Engineering, Czech University of Life Sciences Prague, Kamýcká 129, 165 21 Prague-Suchdol, Czech Republic;

关键词: heat pump;    heat-transfer fluid;    ethanol;    heating season;    thermal characteristics;    energy consumption;    specific energy;   

DOI  :  10.3390/en7020972

来源: mdpi

【 摘 要 】

Temperature changes and heat flows in soils that host “slinky”-type horizontal heat exchangers are complex, but need to be understood if robust quantification of the thermal energy available to a ground-source heat pump is to be achieved. Of particular interest is the capacity of the thermal energy content of the soil to regenerate when the heat exchangers are not operating. Analysis of specific heat flows and the specific thermal energy regime within the soil, including that captured by the heat-exchangers, has been characterised by meticulous measurements. These reveal that high concentrations of antifreeze mix in the heat-transfer fluid of the heat exchanger have an adverse impact on heat flows discharged into the soil.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.