Over the last few decades, great deals on ground-source heat pumps (GSHPs) have been
broadly addressed. Various systems of GSHP have been employed worldwide for …

Thermo-physical properties of the ground play a vital role in heat transfer of ground heat
exchangers (GHE) of ground source heat pump (GSHP) systems. Design and planning of …

There is sparse peer-reviewed literature on the biochar effects on the thermal properties of
soils although they play an important role in the soil energy balance and resulting …

The thermal conductivity of soils is a key factor in calculating soil heat transfer and analyzing
temperature fields of geotechnical engineering in cold regions. We measured the thermal …

In recent years, with the development of geothermal resources, the thermal conductivity of
soil has become a research hotspot. In this study, the thermal conductivity measured by the …

Soil thermal conductivity is largely influenced by soil water content and state of aggregation.
The aim of this study was to compare measured and model-predicted thermal conductivity …

The soil moisture contents affect significantly the soil thermal properties and consequently
the thermal efficiency of shallow geothermal systems. This effect becomes more complex to …

Soils have a variety of mineral compositions. Although a number of thermal conductivity
models have been developed for soils, few quantitatively investigated the effect of mineral …

Accurate predictions of soil thermal conductivity k are strongly influenced by the volumetric
fraction of quartz, Θq, data for which are very scarce. This paper reveals a new approach to …

The thermal conductivities of compacted bentonite and a bentonite–sand mixture were
measured to investigate the effects of dry density, water content and sand fraction on the …