Geothermal energy, which is one of renewable energy sources, is the internal heat of the
Earth. Currently in Poland hydrogeothermal resources are utilized, for which the energy …

Rare earth elements (REE) have been recognised as critical raw materials, crucial for many
clean technologies. As the gap between their global demand and supply increases, the …

The concept of borehole heat exchanger (BHE) field exploitation is described, along with
problems regarding the sustainability of heat resources in rock masses. A BHE field …

The study presents an evaluation of the possibility of using Class C fly ash for the synthesis
of faujasite (Type X) and tschernichite (Type A) type zeolite materials. In order to obtain the …

The effects of geothermal brine salinity on optimal operating parameters of an organic
Rankine cycle (ORC) power plant are investigated. For a more comprehensive …

Waters located at greater depths usually exhibit high mineral content, which necessitates the
use of closed systems, ie re-injecting them into the formation after recovering the heat. This …

Grout is normally used in borehole heat exchangers, in part for separating different water
layers. Grout can also enhance heat transfer with the ground when it has high thermal …

The Podhale geothermal system, located in the southern, mountainous part of Poland, is the
most valuable reservoir of geothermal waters discovered in the country to date and the one …

The paper presents an innovative approach to freshwater production using geothermal
aquifers as a water and energy source. The main parameters which can potentially influence …

Availability of and adequate accessibility to freshwater and energy are two key technological
and scientific problems of global significance. At the end of the 20th century, the deficit of …