Models of Thermochemical Heat Storage

102 Pages·2018·4.518 MB·English

by  Christoph Lehmann,Olaf Kolditz,Thomas Nagel (auth.)

SPRINGER BRIEFS IN ENERGY
COMPUTATIONAL MODELING OF ENERGY SYSTEMS
Christoph Lehmann
Olaf Kolditz
Thomas Nagel
Models of
Thermochemical
Heat Storage
123
SpringerBriefs in Energy
Computational Modeling of Energy Systems
Series editors
Thomas Nagel, Helmholtz-Centre for Environmental Research GmbH—UFZ,
Leipzig, Germany
Haibing Shao, Helmholtz-Centre for Environmental Research GmbH—UFZ,
Leipzig, Germany
More information about this series at http://www.springer.com/series/15395
Christoph Lehmann Olaf Kolditz
(cid:129)
Thomas Nagel
Models of Thermochemical
Heat Storage
123
Christoph Lehmann ThomasNagel
Department ofEnvironmental Informatics Helmholtz Centre for Environmental
Helmholtz Centre for Environmental ResearchGmbH—UFZ
Research—UFZ Leipzig
Leipzig Germany
Germany
OlafKolditz
Helmholtz Centre for Environmental
Research—UFZ
Leipzig
Germany
ISSN 2191-5520 ISSN 2191-5539 (electronic)
SpringerBriefs inEnergy
Computational Modeling of EnergySystems
ISBN978-3-319-71521-6 ISBN978-3-319-71523-0 (eBook)
https://doi.org/10.1007/978-3-319-71523-0
LibraryofCongressControlNumber:2017959315
©TheAuthor(s)2018
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Preface
Thermal energy storage is of high strategic relevance for the establishment of a
sustainable energy system. The development of next-generation storage systems
like thermochemical solutions is accompanied by major scientific and engineering
challenges. Due to the complexity of the considered storage systems and the
exceptional efforts for the development of storage materials as well as for the
implementationoflarge-scaleexperiments,modellingandnumericalsimulationare
of outstanding importance for the prediction of the operational behaviour and the
optimization of thermochemical heat storage systems. The deployment of the
necessary simulation tools is thus one of the key research topics in the area
of thermal energy storage systems. These tools are intended to
(cid:129) satisfy the need to analyse the relevance of various physical and chemical
processes for the operation of the considered storage options,
(cid:129) assess potentials, risks and impacts of sustainable storage options including
economical and ecological aspects,
(cid:129) simulatecyclicprocessesinsorptionstoragesystemsandstoragefacilitiesbased
on reversible chemical bonds within a unified framework,
(cid:129) support the choice of highly efficient and stable materials for the constituents
oftheheatstoragesystemsincludingthemitigationofageingprocessesaswell
as capacity losses,
(cid:129) aid the design of storage units in order to achieve a high level of efficiency,
safety and sustainability.
Thisbookpresentsanintroductiontothecomputationalmodellingofthevarious
coupledmulti-physicalprocessesrelevanttothermochemicalheatstorageusingthe
open-source software OpenGeoSys (OGS). The material is mainly based on work
done in the framework of the NUMTHECHSTORE1 project and a collaboration
between the research programmes “Renewable Energies” and “Storage and
Cross-Linked Infrastructures” by the Helmholtz Association of German Research
1http://www.ufz.de/index.php?en=37528.
v
vi Preface
Centers.Thesoftwaredevelopmentisfurthermoretheresultofaclosecooperation
withintheOGScommunity(www.opengeosys.org). Thesevoluntarycontributions
are highly acknowledged.
This book is intended primarily for graduate students and applied scientists
working in the field of thermochemical heat storage in particular or nonisothermal
reactivetransportprocessesinpackedbedsingeneral,especiallythoseinterestedin
applyingafreelyavailableandcustomizable open-source simulation frameworkin
their research. As such, this book will be a valuable help in the training of
multi-physical modelling and provides an entry point to a modelling tool which is
expandable and highly flexible.
This tutorial is the fifth volume in the Springer series Computational Modeling
ofEnergySystems2thatpresentsapplicationsofcomputationalmodellinginenergy
sciences. Within this series, a sequel of contributions describes the application
of the simulation platform OGS to geotechnical applications in the energy sector
based on work performed in close cooperation with the Federal Institute for
Geosciences and Natural Resources (BGR)3:
(cid:129) Computational Geotechnics: Storage of Energy Carriers4 [Nag+17].
(cid:129) Computational Geotechnics: Deep Geological Repositories, Nagel et al.
(2018*).
It was preceded by three tutorials in the series covering the topic geothermal
energy
(cid:129) GeoenergyModelingI.GeothermalProcessesinFracturedPorousMedia5[Böt
+16],
(cid:129) Geoenergy Modeling II. Shallow Geothermal Systems6 [Sha+16],
(cid:129) Geoenergy Modeling III. Enhanced Geothermal Systems7 [Wat+17].
These contributions are related to a similar publication series in the field of
environmental sciences, namely
(cid:129) Computational Hydrology I: Groundwater Flow Modeling8 [Sac+15],
(cid:129) Computational Hydrology II9 [Sac+17],
(cid:129) OGS Data Explorer, Rink et al. (2017*).
(*approximate publication time)
2http://www.springer.com/series/15395.
3http://www.ufz.de/environmental-geotechnics.
4http://www.springer.com/de/book/9783319569604.
5http://www.springer.com/de/book/9783319313337.
6http://www.springer.com/de/book/9783319450551.
7http://www.springer.com/de/book/9783319465791.
8http://www.springer.com/de/book/9783319133348.
9http://www.springer.com/de/book/9783319528083.
Preface vii
This book is exceptional in comparison with the above contributions in at least
two ways: firstly, it is the only tutorial covering themes from the material sciences
and process engineering rather than a geoscientific topic. Secondly, it is the first
tutorial in this series using a completely new version of OpenGeoSys (OGS-6)
featuring new models, new numerical methods, state-of-the-art software engineer-
ing and code development approaches and many other innovations waiting to be
discovered.
Few books are without errors, and this book is likely no exception. Should you
discover errors that should be corrected, we would be grateful if you let us know
and help improve this book.
Leipzig, Germany Christoph Lehmann
September 2017 Olaf Kolditz
Thomas Nagel
Acknowledgements
We deeply acknowledge theOpenGeoSyscommunity for theircontinuoussupport
to the OpenGeoSys development activities. In connection with this book, in par-
ticular, we want to thank Lars Bilke and Tom Fischer for proofreading and Dmitri
Naumov for providing background information about the software development.
The authors would gratefully like to acknowledge the funding provided by the
Helmholtz Association ofGerman Research Centers viatheResearch Programmes
“Renewable Energies” and “Storage and Cross-Linked Infrastructures” as well as
the Helmholtz Initiating and Networking Fund through the NUMTHECHSTORE
project.Finally,ChristophLehmannwantstothankLuiseWagnerforherpatience
and for taking over many duties in the last few weeks.
ix
x Acknowledgements