Stengler, Jana and Weiss, Julius and Linder, Marc (2019) Analysis of a Lab-Scale Heat Transformation Demonstrator Based on a Gas-Solid Reaction. Energies, 12 (2234). Multidisciplinary Digital Publishing Institute (MDPI). DOI: 10.3390/en12122234 ISSN 1996-1073
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Official URL: https://www.mdpi.com/1996-1073/12/12/2234
Abstract
Heat transformation based on reversible chemical reactions has gained significant interest due to the high achievable output temperatures. This specific type of chemical heat pump uses a reversible gas-solid reaction, with the back and forward reactions taking place at different temperatures: by running the exothermic discharge reaction at a higher temperature than the endothermic charge reaction, the released heat is thermally upgraded. In this work, we report on the experimental investigation of the hydration reaction of strontium bromide (SrBr2) with regard to its use for heat transformation in the temperature range from 180 °C to 250 °C on a 1 kg scale. The reaction temperature is set by adjusting the pressure of the gaseous reactant. In previous experimental studies, we found the macroscopic and microscopic properties of the solid bulk phase to be subject to considerable changes due to the chemical reaction. In order to better understand how this affects the thermal discharge performance of a thermochemical reactor, we combine our experimental work with a modelling approach. From the results of the presented studies, we derive design rules and operating parameters for a thermochemical storage module based on SrBr2.
Item URL in elib: | https://elib.dlr.de/127809/ | ||||||||||||
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Document Type: | Article | ||||||||||||
Title: | Analysis of a Lab-Scale Heat Transformation Demonstrator Based on a Gas-Solid Reaction | ||||||||||||
Authors: |
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Date: | 12 June 2019 | ||||||||||||
Journal or Publication Title: | Energies | ||||||||||||
Refereed publication: | Yes | ||||||||||||
Open Access: | Yes | ||||||||||||
Gold Open Access: | Yes | ||||||||||||
In SCOPUS: | Yes | ||||||||||||
In ISI Web of Science: | Yes | ||||||||||||
Volume: | 12 | ||||||||||||
DOI : | 10.3390/en12122234 | ||||||||||||
Publisher: | Multidisciplinary Digital Publishing Institute (MDPI) | ||||||||||||
ISSN: | 1996-1073 | ||||||||||||
Status: | Published | ||||||||||||
Keywords: | heat transformation; thermochemical reaction; chemical heat pump; thermal upgrade; gas-solid reaction | ||||||||||||
HGF - Research field: | Energy | ||||||||||||
HGF - Program: | Storage and Cross-linked Infrastructures | ||||||||||||
HGF - Program Themes: | Thermal Energy Storage | ||||||||||||
DLR - Research area: | Energy | ||||||||||||
DLR - Program: | E SP - Energy Storage | ||||||||||||
DLR - Research theme (Project): | E - Thermochemical Processes (Storage) | ||||||||||||
Location: | Stuttgart | ||||||||||||
Institutes and Institutions: | Institute of Engineering Thermodynamics > Thermal Process Technology | ||||||||||||
Deposited By: | Stengler, Jana | ||||||||||||
Deposited On: | 12 Jul 2019 13:04 | ||||||||||||
Last Modified: | 14 Dec 2019 04:24 |
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