Combining direct ground cooling with ground-source heat pumps and district heating: Borehole sizing and land area requirements
Journal article, 2022

This article studies the potential combination of direct ground cooling (DGC) with district heating (DH) and ground source heat pumps (GSHP) to compare the required borehole depths and needed drilling areas. It also examines two different borehole sizing approaches to optimize investment costs and drilling areas. The results show that the required borehole depths in most cases are shorter for the DGC and DH combination than for the DGC and GSHP combination. It is also demonstrated that the optimal range of borehole outlet temperatures could be chosen based on the trade-off between borehole installation and terminal units’ costs.

Borehole sizing

Cold climates

Optimization

Ground-source heat pump (GSHP)

Ground heat exchanger

Direct ground cooling

Author

Taha Arghand

Chalmers, Architecture and Civil Engineering, Building Services Engineering

Saqib Javed

Lund University

Jan-Olof Dalenbäck

Chalmers, Architecture and Civil Engineering, Building Services Engineering

Geothermics

0375-6505 (ISSN)

Vol. 106 102565

Subject Categories

Energy Engineering

Other Environmental Engineering

Energy Systems

DOI

10.1016/j.geothermics.2022.102565

More information

Latest update

10/27/2023