EVALUATION OF THE HEAT POTENTIAL OF THE UPPER LAYERS OF THE EARTH ON THE TERRITORY OF UKRAINE

• Date: 2018
• Author Affiliations: Yu. Morozov — Institute of Renewable Energy, NAS of Ukraine; V. Velychko — Institute of Renewable Energy, NAS of Ukraine; I. Kushnir — Institute of Renewable Energy, NAS of Ukraine
• Keywords: keywords
• Main Authors: Morozov, Yu., Velychko, V., Kushnir, I.
• Format: Article
• Language: Ukrainian
• Published: Institute of Renewable Energy National Academy of Sciences of Ukraine 2018
• Subjects: vertical well; mountain range; upper layers of the earth; heat pump; thermal potential.
• Online Access: https://ve.org.ua/index.php/journal/article/view/184
• Journal Title: Vidnovluvana energetika

The analysis of the main provisions of the EU normative documents and legislative acts of Ukraine concerning the assignment ofheat pumps to equipment that uses renewable energy sources and the choice of criteria for such assignment is carried out. Consideredthe minimum allowable value of the average calculated seasonal coefficient of usefulness (efficiency). The calculated values ofthe efficiency of energy systems of the EU and Ukraine are presented for comparison. These indicators correspond to heat pumps,which are used as a source of low-temperature energy for the heat of the upper layers of the Earth. An analysis of the hydrogeologicaland geothermal conditions of the upper layers of the Earth with a depth of 300 m for the purpose of their use for geothermal heatsupply with the use of heat pumps. Data were taken into account for the area of development of public land and the area of Ukraine'scities. The temperatures of the surface layers of the Earth to a depth of 300 m were taken on the basis of data of their actual measurement.The data on the water content on the territory of Ukraine up to a depth of 300 m is given, which should be taken into accountwhen developing the technologies of the systems of extraction of heat of the upper layers of the Earth, which should be as closeas possible to the systems with water sealing, which allows the safe use of the resources of the surface layers of the Earth. The issueof increasing the lifespan of the system for the production of low-potential heat is considered, it is considered expedient to carry outits work by restoring the natural temperature field. It is proposed to carry out the restoration of the natural temperature fieldthrough the use of accumulated heat in air-conditioning systems with the use of reversible heat pumps in the non-heated period of theyear. The initial data and assumptions for estimating the thermal potential of the upper layers of the Earth, which can be used forgeothermal heat supply with the use of heat pumps, are considered. The potential of the heat of the upper layers of the Earth, takinginto account the area of the suburban area of the cities of Ukraine at a depth of 300 m, is estimated at 26,8 million tons of conditionalfuel (187.8 million Gcal).