Ground Source Heat Pumps cost analysis in moderate climate

Date Issued
2019
Author(s)
Abstract
A debate is taken up on whether it is economically preferential to install Ground Source Heat Pumps (GSHPs), Renewable Energy Systems, instead of Air Source Heat Pumps (ASHPs). To this end, a typical house heating/cooling load for moderate climates is chosen and the thermal response of Ground Heat Exchangers (GHEs) of GSHPs and their characteristics – based on experimental data and CFD-model simulations in FlexPDE – are discussed. The results indicate that with greater difference between the inlet GSHP temperature water and the ground, a higher heat rejection is observed. The GSHP capacity over the input power operating temperature is affected by the fluid temperature entering the Heat Pump, affecting the system cost as more GHE boreholes may be needed for reducing the temperature. A cost analysis is thus presented for different-length GSHP systems and a comparison of the total energy savings is obtained versus highly competitive inverter technology ducted series ASHP systems.
Subjects

Ground Source Heat Pu...

GHE cost analysis in ...

Air Source Heat Pumps...

File(s)
Thumbnail Image
Name

2019 Aresti et al. 2 WAMS.pdf

Size

426.57 KB

Format

Adobe PDF

Checksum (MD5)

e76ee54d40dcac77c94de80f23a3959c

Thumbnail Image
Name

WAMS2019-pc.pdf

Size

48.84 KB

Format

Adobe PDF

Checksum (MD5)

73593aea6a418b57bfeb4062a100d69e