新安装的高温热泵示范装置与高温矿井热能储存装置概览

IF 3.5 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Refrigeration-revue Internationale Du Froid Pub Date : 2024-08-08 DOI:10.1016/j.ijrefrig.2024.08.002

Arianna Passamonti , Paola Bombarda , Alexander Cohr Pachai , Stefan Klein , Clemens Schneider , Rolf Bracke

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引用次数: 0

摘要

为此，在位于波鸿的弗劳恩霍夫能源研究所（Fraunhofer IEG Institute）开发了高温热泵（HTHPs）示范装置，并将其与季节性高温矿井热能储存（MTES）相结合。通过将小型淹没式煤矿（MTES）中的矿井水与太阳能抛物面槽式集热器（SPTCs）以及为波鸿南部地区供热（DH）电网服务的高温热泵系统相连接，展示了该技术的可行性，从而实现了上述目标。MTES 的水量估计约为 20000 立方米，可用作 500 千瓦 HTHP 系统的季节性蓄水，当环境温度低于或等于 -10°C 时，该系统可达到现有 DH 电网所需的 120°C 供热温度。在夏季运行期间，热量从 SPTCs 注入 MTES，以获得 60°C 的矿井水温度；在冬季运行期间，热量通过 HTHP 抽取，直到采暖季结束时矿井水达到 12°C 的未加热温度。

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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.

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来源期刊

International Journal of Refrigeration-revue Internationale Du Froid 工程技术-工程：机械

CiteScore

7.30

自引率

12.80%

发文量

363

审稿时长

3.7 months

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.