EXPERIMENTAL STUDIES OF THE THERMAL REGIME OF THE HYDROTHERMAL HEAT PUMP SYSTEM

Keywords: groundwater, heat pump, hydrothermal system, aquifer, low potential water energy

Abstract

Groundwater is a highly efficient source of renewable low-potential energy, but the effective use of such systems depends largely on the preliminary study of the geological structure of the mountain range and the hydrogeological parameters of the aquifer. The aim of the study is to determine the dependence of technical and economic indicators of the hydrothermal heat pump system on the hydrogeological parameters of the aquifer. The main hydrogeological parameters that affect the thermal regime of the hydrothermal heat pump system are determined in the work. The hydrothermal experimental heat pump system developed and constructed at the Institute of Renewable Energy of the National Academy of Sciences of Ukraine is presented. It consists of a heat pump and two wells through, which water circulation from the underground horizon to the heat pump is provided. The method of conducting research is described. The description of the characteristics of the measuring equipment installed on the hydrothermal heat pump system and developed by the author of the interactive dispatching system based on the software product ESM (Engineering Systems Manager) using FBD programming language (Function Block Diagram/Continuous Function Chart), which was used to build the data system obtained in the process of conducting this research work. The results of the conducted experimental researches are given. The analysis of efficiency and investment attractiveness of the hydrothermal system is performed, where the low-potential thermal energy of the aquifer water is used as a renewable primary source of thermal energy for the heat pump operation. It is substantiated that the existing hydrothermal heat pump systems are not always adapted to the operating conditions and location of the facility and there is no method of designing hydrothermal heat pump systems, methods of preliminary hydrogeological studies of the area planned for installation of these systems. It is determined that further experimental studies of the influence of flow rate and dynamic level of the well on the stability and efficiency of the hydrothermal heat pump system are promising. Ref. 16, tab. 1, fig. 5.

Author Biography

О. Zurian , Institute of Renewable Energy of the National Academy of Sciences of Ukraine 02094, 20А Hnata Khotkevycha St., Kyiv, Ukraine.

img13.pngAuthor information:  Researcher of the Department of Geothermal Energy of the Institute of Renewable Energy of the National Academy of Sciences of Ukraine. Candidate of Technical Sciences.
Education: : Stavropol Higher Military Engineering Academy of Communication. Specialty: engineer of radiocommunication. He defended his dissertation: "Environmentally safe renewable heat sources" in 2016 at V.N. Karazina Kharkiv National University
Research area: renewable energy, unconventional hydrocarbon deposits, environmental safety.
Publications: more than 70 scientific publications, including 3 monographs and 20 author’s patents for inventions and utility models.

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Published
2021-12-25
How to Cite
Zurian О. (2021). EXPERIMENTAL STUDIES OF THE THERMAL REGIME OF THE HYDROTHERMAL HEAT PUMP SYSTEM. Vidnovluvana Energetika, (4(67), 77-89. https://doi.org/10.36296/1819-8058.2021.4(67).77-89