Soil Borehole Thermal Energy Storage (SBTES) 2D Experimental-Numerical Study

Current study is aimed at better understanding of coupled heat and mass transfer on Soil Borehole Thermal Energy Storage (SBTES) systems. The study was started by performing a series of 2D experiments using the apparatus shown in following figures. The tank was instrumented with moisture and temperature sensors and heat was applied using two aluminum plates located in two sides of soils. Data collected from experiments on different soils was later used to develop a numerical model.

sample result of numerical model
Following figure shows a sample result of numerical model (convective and conductive heat fluxes). This model can be utilized to investigate the influence of different hydraulic and thermal parameterizations on SBTES system efficiency
heat fluxes

SBTES 3D Experimental-Numerical Study

Followed by 2D tests, laboratory tests will be performed using an intermediate three dimensional tank as shown below.

tank tank filling up with water
Preliminary simulation of heat transfer in 3D tank (1/4 of the domain)
Above: Preliminary simulation of heat transfer in 3D tank (1/4 of the domain)