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Biberach University of Applied Sciences– Institute for Building and Energy Systems (HBC-IGE)
At the Institute for Building and Energy Systems (IGE) at Biberach University of Applied Sciences (HBC), research on shallow geothermal heating and cooling is conducted for almost 20 years. As early as 2001, a special test building at the university, the "Technikum Gebäudeklimatik", was put into operation, which has a test field for shallow geothermal energy and heat pumps. The results of the R&D projects are reflected in particular in technical books and design methods and programmes (distribution: several hundred users), are partly incorporated in the german VDI 4640 guideline and are disseminated in planner training courses. Prof. Dr.-Ing. R. Koenigsdorff is a member of the german VDI Guidelines Committee VDI 4640, the Baden-Württemberg State Research Centre for Geothermal Energy (LFZG) and the Baden-Württemberg Center of Applied Research (BW-CAR).In the joint project, HBC-IGE is working on the topic of multifunctional modelling for dimensioning and characterisation of shallow geothermal systems and is thus mainly involved in the subprojects 1.1 In-situ-System-TRT, 1.2 Development of a method and measuring device for the characterisation of trench collectors, 4.1 Extension of consistent modelling, 4.2 Extension of the functionality of the model library and 4.3 Adaptation of the design models to real and future heat load profiles.
Project team:
Prof. Dr.-Ing. Roland Koenigsdorff is chairman of the german VDI guidelines committee VDI 4640 "Thermal use of the subsurface" as well as a member of the federal state research center geothermics (Landesforschungszentrum Geothermie LFZG) Baden-Württemberg and the Baden-Württemberg Center of Applied Research (BW-CAR), the network for professors with strong research skills at the universities of applied sciences (HAW) in this federal state. One of his main fields of work is systems for the extraction and use of geothermal energy, in particular so-called LowEx buildings and LowEx energy systems (LowEx: low energy) with shallow geothermal heating and cooling. R&D projects on this have been carried out under his leadership at IGE for almost 20 years.
M.Sc. Fabian Neth completed his Master's degree in Building and Energy Systems at Biberach University of Applied Sciences in 2017 and then worked for two years as head of development and product management at a medium-sized company in the field of heat storage and water heating. 2019 he started working at Biberach University of Applied Sciences and has so far focused on the transfer of software for dimensioning energy systems and components. In the QEWSplus project, Mr Neth is in charge of subproject 1.1.
M.Sc. Adinda Van de Ven successfully completed her Master's degree in Building Climate Control at Biberach University of Applied Sciences in 2014. After 1.5 years of industrial experience as a refrigeration engineer, she returned to Biberach University of Applied Sciences to dedicate herself to research focussing on geothermal energy and the associated modelling. In the previous project QEWS II (www.qews2.de, https://www.tib.eu/de/suchen/id/TIBKAT:1749194961/Qualit%C3%A4tssicherung-bei-Erdw%C3%A4rmesonden-II-mit-Beteiligung?cHash=af2726c562cb2479acea30dd9730f5b5 ) she worked on subproject 5 "Development and implementation of consistent design models for near-surface geothermal plant systems (GEOSYST+).
Burkhardt GmbH
in progress
Project team:
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EIFER – European Institute for Building and Energy Systems
EIFER's strong interdisciplinarity covers a wide range of topics and it has great experience in the implementation of application-oriented
and technical issues and solutions. Numerous ongoing European and national projects include innovative solutions, e.g. in the field of
hydrogen technologies, heating networks and monitoring solutions, as well as the investigation of special forms for the use of geothermal
energy, such as heat pipes (deep geothermal CO2 boreholes, de-Ice pipe) and mega-earth basket spiral solutions (EMERGE), a main field of
activity was the research and development of backfilling materials for borehole heat exchangers (BHE). Furthermore, questions of quality
assurance for BHEs were central fields of activity. Within the framework of these research projects, laboratory, pilot plant and field
tests were carried out. In accordance with the objectives of the research projects, extensive monitoring systems are implemented and
geophysical measurement methods are used in the test fields. In addition, the determination of thermal subsurface properties by means of
TRT and ERGT is a central issue.
In the joint project QEWSplus EIFER is working on the subprojects 1.2 Development of a method and measuring device for the characterisation of trench collectors, 1.3 Analysis and optimisation of short time-backfill-check TRTs and other innovative BHE measurement methods, 2 Further development of the emulated borehole heat exchanger (E-BHE) to check TRT devices, 3.1 Filtration characteristics of BHE backfilling materials, 3.4 Backfill material quality check for BHEs under real conditions, 3.5 New backfilling concept for BHE´s.
Project team:
Dr. Petra Huttenloch
M.Sc. Linda Schindler
Dr. Simon Schüppler
Dr. Roman Zorn
Fraunhofer – Institute for Solar Energy Systems (ISE)
Founded in 1981, Fraunhofer ISE and its approximately 1300 employees are committed to a sustainable, economic, secure and socially fair
energy supply system based on renewable energies. Within the framework of the main research areas of energy efficiency, energy generation,
energy distribution and energy storage, it creates the technical prerequisites for an efficient and environmentally friendly energy supply,
both in industrialised and in newly industrialising and developing countries.
The Thermal Systems and Buildings (TSB) department has been involved in the development, measurement and optimisation of electrically and thermally driven refrigeration or heat pump systems for many years, both in national and international R&D projects and in direct cooperation with companies.
Fraunhofer ISE is working on the following subprojects:
SP 1.1 In-situ-system-TRT, 1.2 Development of a method and measuring device for the characterization of trench collectors, 1.3 Analysis and optimisation of short time-backfill-check TRTs and other innovative BHE measurement methods, SP 2 Further development of the emulated borehole heat exchanger (E-BHE) to check TRT devices, 3.2 Determination oft he hydraulic permeability of system samples, 3.3 Realistic combination of investigation aspects of filtration effects, and 3.4 Backfill material quality check for BHEs under real conditions.
Project team:
Dipl.-Ing. (FH) Björn Nienborg has been researching energy-efficient and renewable heating and cooling systems at Fraunhofer ISE for over 10 years and leads the addressed QEWSplus subprojects there.
Hans G. Hauri KG Mineralstoffwerke
Hans G. Hauri KG Mineralstoffwerke is an owner-managed family business dedicated to the extraction and refinement of various types of rock.
Since 2008, special hydraulic binders based on the natural pozzolana phonolite have been produced for the geothermal sector to ensure
optimum heat transfer for borehole heat exchangers. During the development of the ZEO-Therm product range, attention was and is paid to
achieving not only optimal workability of the product but also good usage properties in the geothermal system. Ensuring environmental
compatibility and continuous quality assurance and of course monitoring are a matter.
New mixtures are developed in the laboratory with the aim of optimising durability (e.g. sulphate resistance), workability and also environmentally friendly production.
In the joint project QEWSplus Hans G. Hauri Mineralstoffwerke is providing the test area for the boreholes as well as a part of the thermally enhanced grouting material for the backfilling of the boreholes and is therefore mainly involved in subproject 3.4 Backfill material quality check for BHEs under real conditions.
Project team:
As a managing director and sales manager, Techn. Dipl.-Betriebswirt (FH) Frank Hauri has many years of experience in the commercial support of geothermal construction sites and its requirements.
B. Sc. Alexander Kugler has been working for Hauri since 2016 as an office and field sales representative among others for the geothermal product departement. Before that, he studied geology at the Albert Ludwig University in Freiburg and at the KIT in Karlsruhe.
H.S.W. GmbH
Since the end of the 1990s, H.S.W. GmbH has been increasingly dealing with shallow geothermal applications as part of applied geology. In
2002, a separate "Geothermal Energy" department was established, which has already been involved in numerous projects and research projects.
Today, the range of services offered by the "Geothermal Energy" department covers all planning phases according to german Official Scale of
Fees for Services by Architects and Engineers (i.e. HOAI). In the meantime, the department has specialised in many technical services in
the field of geothermal energy that are relevant to licensing law. For example, in cooperation with the IGF Rostock office, several
measuring devices have been developed which are used to verify design-relevant thermophysical subsurface parameters by means of geothermal
response tests. Furthermore, special services such as the creation of 3D subsurface models and the performance of thermohydrodynamic
simulations can be provided.
In the joint project, H.S.W. GmbH is mainly working on the subprojects 1.3 Analysis and optimisation of short time-backfill-check TRTs and other innovative BHE measurement methods, 2 Further development of the emulated borehole heat exchanger (E-BHE) to check TRT devices and 4.1 Extension of consistent modelling.
Project team:
Dipl.-Ing. Jens-Uwe Kühl has many years of experience in the field of shallow geothermal energy as managing director of H.S.W. GmbH, which is why he is a publicly appointed and sworn expert in the field of shallow geothermal energy by the Rostock Chamber of Industry and Commerce and a consulting engineer for the M-V Chamber of Engineers. He is also a certified building energy consultant (HWK). He is a member of the expert committee on shallow geothermal energy of the German Geothermal Energy Association and a board member of the State Association of Renewable Energies in M-V.
Karlsruhe Institute of Technology – Institute of Applied Geosciences
The Institute for Applied Geosciences (AGW) - Engineering Geology of KIT has been active in various research projects in the field of
shallow geothermal energy and urban heat islands since 2001. In more than 20 research projects, basic research as well as applied questions
have been realised and made accessible to the public in scientific papers. In addition, the results of the investigations are included in
the german VDI 4640 guideline and the LQS EWS guideline of the federal state of Baden-Württemberg. The AGW and EIFER jointly operate the
geothermal laboratory in which special test facilities are developed on a laboratory scale, pilot plant scale and field scale in order to
be able to answer specific questions in the field of geothermal energy.
In the QEWSplus research project, the KIT-AGW is involved in the subprojects 1.2 Development of a method and measuring device for the characterization of trench collectors, 1.3 Analysis and optimisation of short time-backfill-check TRTs and other innovative BHE measurement methods, 3.1 Filtration characteristics of BHE backfilling materials, 3. 2 Determination of the hydraulic permeability of system samples, 3.3 Realistic combination of investigation aspects of filtration effects, 3.4 Backfill material quality check for BHEs under real conditions and 3.5 New backfilling concept for BHE´s worked on together with the project partners.
Project team:
M.Sc. Anna Albers completed her Master's degree in Applied Geosciences at RWTH Aachen University in 2018, specialising in geophysics, hydrogeology and engineering geology. Since 2021, she has been working as a research assistant in the KIT Engineering Geology Group on heat transport in borehole heat exchangers, including the determination of thermal conductivity.
Prof. Dr. Philipp Blum
M.Sc. Helena Fuchs completed her studies in Applied Geosciences at the Karlsruhe Institute of Technology in 2016 and has since been working as a research assistant at the Institute of Applied Geosciences. In the QEWS II project , she worked in subproject 3.2 on a feasibility study for the use of ultrasonic probes to check the system leakproofness of borehole heat exchangers. In the QEWSplus project, she is continuing this work in subproject 1.3 and is involved in the development of a thermal borehole probe.
Prof. Dr. Frank Schilling
Dr. Hagen Steger has been a scientific employee and laboratory manager at KIT-AGW Engeneering geologiy for over 20 years. At the beginning of his scientific career, he worked on projects in the field of electrokinetic soil remediation. For about 20 years, his focus has been on shallow geothermal projects. Here, his additional training as an electrician helps him to carry out ERGTs, as well as to develop experimental setups and monitoring systems. He is also a member of the german VDI Guidelines Committee VDI 4640 Sheet 6.
Solites
Solites works in all areas of solar and sustainable thermal energy systems that contribute significantly to CO2 emission reduction. As a
research institute in the Steinbeis network, the focus of the work is on innovative and new technologies for which no state of the art yet
exists or where this needs to be adapted to new problems.
Solites' range of services includes basic and applied research, project development, technical concept development, system simulation, design and optimisation of complex thermal systems, planning, tendering, contract award and construction support, commissioning, operational optimisation, measurement data analysis and evaluation, as well as support and advice on policy implementation and market development.
In the joint project, Solites is mainly working on subproject 3, which deals with unresolved issues relating to the quality of the backfilling of borehole heat exchangers. With a more precise description of the processes that occur during the drilling and backfilling of boreholes, confidence in the technology is strengthened and thus contributing to the realisation of the heat transition is made.
Project team:
Dipl.-Ing. Tim Theophil graduated in geotechnical engineering and mining with a specialisation in drilling technology and fluid mining from the TU Bergakademie Freiberg in 2018. In his diploma thesis, he already dealt with the filtration effects of backfilling material during the backfilling of borehole heat exchangers and has since been working on the topic of quality assurance in the backfilling of borehole heat exchangers in the QEWS II and QEWSplus projects. He is also involved in the simulation of large-scale thermal storage and studies on the conversion to heat supply by renewable sources.
M.Sc. Yannick Reduth completed his studies in Applied Geosciences at KIT in 2019, specialising in geothermal energy and structural geology. In the EWS-tech II and QEWS II projects, he was already able to gain experience with quality assurance in the backfilling of borehole heat exchangers during his studies. Thematically, he is continuing this topic in the QEWSplus project and is also working on FEM simulations of heat extraction and injection into the shallow subsurface.
ZAE Bayern – Bavarian Center for Applied Energy Research
Founded in 1991, ZAE Bayern works at the interface between knowledge-based basic research and applied industrial research. Under the
guiding principle "Excellent Energy Research - Excellent Implementation", it realises complete innovation packages that build on synergies
between generation, storage and efficiency measures. For more than 25 years, ZAE Bayern has been conducting R&D projects in the field of
shallow geothermal energy, especially with borehole heat exchangers for ground-coupled heat pumps or seasonal heat storage systems. For
example, ZAE Bayern realised a hybrid storage system consisting of borehole heat exchangers and an earth basin storage. The measurement
procedure of the thermal response test has been offered as a measurement service by ZAE Bayern since 2001. With the large-scale test stand,
the hydraulic permeability of the borehole heat exchanger system sample under freeze-thaw conditions are being investigated at ZAE Bayern
for more than 10 years. The IEA ECES Annex 21 "Thermal Response Test"
(https://iea-es.org/wp-content/uploads/public/IEA_ECES_ANNEX_21_FINAL_REPORT.pdf)
and the IEA ECES Annex 27 "Quality Management in Design, Construction and Operation of Borehole Systems"
(https://iea-es.org/wp-content/uploads/public/IEA-ECES-ANNEX-27-Final-Report-20201118.pdf)
were managed by ZAE Bayern.
In the joint project, ZAE Bayern is focusing on subproject 1.1 In-situ-system-TRT, 1.2 Development of a method and measuring device for the characterization of trench collectors, 1.3 Analysis and optimisation of short time-backfill-check TRTs and other innovative BHE measurement methods, 2 Further development of the emulated borehole heat exchanger (E-BHE) to check TRT devices, 3. 2 Determination oft he hydraulic permeability of system samples, 3.3 Realistic combination of investigation aspects of filtration effects and 3.4 Backfill material quality check for BHEs under real conditions.
Project team:
Dipl.-Ing. Hanne Karrer is deputy group leader of the Solar Energy and Geothermal Energy group at ZAE Bayern and secretary of the Energy Storage Technology Collaboration Programme of the International Energy Agency (IEA ES TCP). She successfully completed her degree in mechanical engineering at the Technical University of Munich in 2014 and has been working at ZAE Bayern since then. She was the coordinator of the predecessor project QEWS II (www.qews2.de, https://www.tib.eu/de/suchen/id/TIBKAT:1749194961/Qualit%C3%A4tssicherung-bei-Erdw%C3%A4rmesonden-II-mit-Beteiligung?cHash=af2726c562cb2479acea30dd9730f5b5) and worked on subproject 1 "Procedure for the verification of measurement equipment for thermal response tests". In the QEWSplus project, Hanne Karrer is in charge of subproject 2 "Further development of the emulated borehole heat exchanger (E-BHE) to check TRT devices".
Dipl. Ing (FH) Peter Osgyan will replace Hanne Karrer as deputy group leader of the Solar Energy and Geothermal Energy group. He successfully completed his degree in mechanical engineering 2008 at the University for Applied Science in Regensburg and additional in 2011 his degree in Energy and Process Technology at the Technical University Munich. During this time, he was already working as a research assistant at ZAE. He was involved in projects like QEWS, QEWS II and PIATHERM.
During the parental leave of Hanne Karrer, Peter Osgyan takes over her work in the Projekt QEWSplus and will manage the subproject 2 "Further development of the emulated borehole heat exchanger (E-BHE) to check TRT devices".
M.Sc. Martin Fuchs is a research associate in the Solar Energy and Geothermal Energy group at ZAE Bayern. He completed a bachelor's and master's degree in mechanical engineering with a focus on energy technology at OTH Regensburg from 2015 to 2021. In the QEWSplus project, Mr. Fuchs works in sub-project 1.1.
Dipl. Ing (FH) Michael Kainzlsperger graduated in micro and precision mechanics at Munich University of Applied Sciences in 2005 and has been working as a research assistant at ZAE-Bayern since 2006. Most recently in the Heat Storage Systems group as head of the ZAE-ST HT-TES subproject. Since the beginning of 2021 he has been working in the Solar Energy and Geothermal Energy group. In the QEWSplus project, Mr Kainzlsperger is in charge of subproject 1.2.
B.Sc. Micha Pinnekamp completed his bachelor's degree in Engineering Science at the Technical University of Munich in 2019 with his bachelor's thesis at ZAE Bayern. As part of the predecessor project QEWS II in subproject 2, he was involved in laboratory work and the evaluation of measurement data, as well as investigating the exact causes and correlations of sidewall leakage at the pipe in borehole heat exchanger systems. He is a research associate in the System Development group and is entrusted with the management of subproject 3.2 as well as the joint subproject 3.3 of Solites and ZAE Bayern.
Dr. rer. nat. Jens M. Kuckelkorn is group leader of the System Development group at ZAE Bayern. His broad subject expertise as a geologist with a PhD ranges from deep geothermal energy and shallow geothermal energy to energy supply systems and buildings. After his studies at the LMU Munich, he worked in hydrogeology from 1991 and has been involved with borehole heat exchangers since 1995. With his 18 years of work at ZAE Bayern and his work in the research projects QEWS, QEWS II and QEWSplus, he is an expert in this field, especially on the sealing of borehole heat exchangers. With these years of experience, he contributes to the committee of the german guideline VDI 4640, Sheet 6, among other things. In QEWSplus he is involved in SP 3.2 and SP 3.3.
B.Sc. Lukas Pendzich has been at ZAE Bayern for over 12 years, having written his bachelor's thesis there as part of the QEWS research project. He studied geology at the LMU Munich and is a research associate in the System Development group. In QEWS and QEWS II he was significantly involved in the development and planning, sample production, test set-up, test execution and evaluation. His support in SP 3.2 and SP 3.3 of QEWSplus is enriched by his great experience, especially in laboratory activities.
M.Eng. Andreas Bayer is a research assistant in the System Development group and a PhD student / research associate in the Thermal Energy Storage group at ZAE Bayern. He completed a master's degree in Building Services Engineering at Munich University of Applied Sciences and has been at ZAE Bayern for 10 years. He has been a partner at Bayer + Bayer Ingenieure Partnerschaft since 2014. In QEWSplus he is involved in subprojects 3.2 and 3.3.
