Arianna Passamonti , Paola Bombarda , Alexander Cohr Pachai , Stefan Klein , Clemens Schneider , Rolf Bracke
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and in the winter operation, the heat is extracted through the HTHP until the mine water reaches the unheated temperature of 12°C at the end of the heating season.</p><p>A literature review of the main components of the plant, the description of the installed system parts and performed tests are reported, along with the results of the successfully executed tests.</p></div>","PeriodicalId":14274,"journal":{"name":"International Journal of Refrigeration-revue Internationale Du Froid","volume":null,"pages":null},"PeriodicalIF":3.5000,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0140700724002706/pdfft?md5=8bd13f34fa4a473178ad7788989d99e8&pid=1-s2.0-S0140700724002706-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Overview of a newly-installed high-temperature heat pump demonstrator coupled with high-temperature mine thermal energy storage\",\"authors\":\"Arianna Passamonti , Paola Bombarda , Alexander Cohr Pachai , Stefan Klein , Clemens Schneider , Rolf Bracke\",\"doi\":\"10.1016/j.ijrefrig.2024.08.002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The research aims to prove that renewable energy sources in the heating sector can enable the energy transition towards European and German CO<sub>2</sub> reduction targets.</p><p>To do so, at the premises of the Fraunhofer IEG Institute in Bochum a demonstrator for high-temperature heat pumps (HTHPs), coupled with seasonal high-temperature mine thermal energy storage (MTES), was developed.</p><p>The goal is achieved by demonstrating the feasibility of the technology by connecting mine water present in a small flooded coal colliery (MTES) to solar parabolic trough collectors (SPTCs) and also to a HTHP system that serves the local district heating (DH) grid of Bochum south.</p><p>The MTES, with an estimated water volume of approximately 20000 m<sup>3</sup> is employed as seasonal storage for a 500 kW HTHP system that can reach a supply temperature of 120°C, as needed by the existing DH grid when the ambient temperature is lower or equal to -10°C.</p><p>During the summer operation, the heat is injected into the MTES from the SPTCs to obtain a mine water temperature of 60°C; 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Overview of a newly-installed high-temperature heat pump demonstrator coupled with high-temperature mine thermal energy storage
The research aims to prove that renewable energy sources in the heating sector can enable the energy transition towards European and German CO2 reduction targets.
To do so, at the premises of the Fraunhofer IEG Institute in Bochum a demonstrator for high-temperature heat pumps (HTHPs), coupled with seasonal high-temperature mine thermal energy storage (MTES), was developed.
The goal is achieved by demonstrating the feasibility of the technology by connecting mine water present in a small flooded coal colliery (MTES) to solar parabolic trough collectors (SPTCs) and also to a HTHP system that serves the local district heating (DH) grid of Bochum south.
The MTES, with an estimated water volume of approximately 20000 m3 is employed as seasonal storage for a 500 kW HTHP system that can reach a supply temperature of 120°C, as needed by the existing DH grid when the ambient temperature is lower or equal to -10°C.
During the summer operation, the heat is injected into the MTES from the SPTCs to obtain a mine water temperature of 60°C; and in the winter operation, the heat is extracted through the HTHP until the mine water reaches the unheated temperature of 12°C at the end of the heating season.
A literature review of the main components of the plant, the description of the installed system parts and performed tests are reported, along with the results of the successfully executed tests.
期刊介绍：
The International Journal of Refrigeration is published for the International Institute of Refrigeration (IIR) by Elsevier. It is essential reading for all those wishing to keep abreast of research and industrial news in refrigeration, air conditioning and associated fields. This is particularly important in these times of rapid introduction of alternative refrigerants and the emergence of new technology. The journal has published special issues on alternative refrigerants and novel topics in the field of boiling, condensation, heat pumps, food refrigeration, carbon dioxide, ammonia, hydrocarbons, magnetic refrigeration at room temperature, sorptive cooling, phase change materials and slurries, ejector technology, compressors, and solar cooling.
As well as original research papers the International Journal of Refrigeration also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of discussion and controversy. Other features include forthcoming events, conference reports and book reviews.
Papers are published in either English or French with the IIR news section in both languages.
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