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This issue of the newsletter reflects the progress achieved by the project between April 1st, 2021 until March 31st, 2022.
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GEO4CIVHIC Project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 792355.
The project will run for 48 months, from April, 1st, 2018, until March 31st, 2022.
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Overview of the existing very shallow and horizontal solutions
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Shallow geothermal energy can be defined as the heat output which is provided by a subsurface source like geothermal boreholes. However, this classification is not complete. Heat output as the extraction output (heating) is one aspect of shallow geothermal energy, an-other and lesser noticed one us the feed-in output (cooling), in which heat energy is dissipated into the ground (e.g. air conditioning of rooms in summer).
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Innovative hybrid high temperature Heat Pumps for renovated Civil and Historical Buildings for high and medium temperature terminals
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Ground Source Heat Pumps (GSHP) are considered of great interest in the field of building retrofit, as they represent an efficient renewable-based technology. However, it is necessary to increase their competitiveness in the market, as it is still held back by the high investment costs and their need for large spaces for the installation of the geothermal field.
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Prototype of the machine with low environmental impact refrigerant fluid
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The document presents the development and testing of an innovative high temperature hybrid heat pump for renovated civil and historical buildings. In the first part, a series of low GWP (<150) refrigerants is evaluated form the thermodynamic point of view in different heat pump cycles with the aim to select the most promising fluids as substitutes for R134a and R410A, the most used refrigerant at present, which have to be banned in the future due to their high GWP. In the second part, the document gives a description of the innovative hybrid heat pump, together with the results of the heat pump tests be performed at the CNR demo site in Padova.
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Second report on the results of pilot Facilities demonstration n.1 in Padua: performance of the novel co-axial probes
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The report specifically concerns the installation procedure as well as the performance of the novel plastic coaxial borehole heat exchanger developed in the context of EU-funded project GEOCOND and further tuned within T2.4 of GEO4CIVHIC project.
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Enriched GEO4CIVHIC database for geothermal retrofit
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The document presents the structure and content of the databases that have been developed, including: a DSS database, with information regarding the functioning of the system; a simulation database, with simulation data to be used in the calculations; a data model database, with information regarding the environment and the technologies that needs to be taken into account in the calculations; and additional information repositories, with data to be presented to the user.
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GEO4CIVHIC DSS for geothermal retrofit engine
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The document summarizes the implemented final architecture of the DSS for geothermal retrofit and describes the calculation that are performed by its engine.
The document presents the final overall system architecture and its main components which are articulated around three entities: a web interface to interact with the user, a set of databases to store information related to the calculations and the DSS engine where the calculations are performed. The document then focused on detailing the different calculation steps that are performed by the back-end engine. Those are organized around an input and output modules and in between calculations are performed with respect with climate, energy demand, geothermal system selection, and geothermal calculations.
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GEO4CIVHIC DSS for geothermal retrofit user manual
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The current document represents the user manual of the web-based Decision Support System developed in the project. The instructions for managing the user account, creating and configuring projects and easily following the different steps of the calculation process will be presented. The flexibility of the tool, which adapts to different levels of user expertise will also be shown. Finally, the document will give indications for the users to interpret the results provided by the website.
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Applications for support on field for workers on Geothermal field
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The document describes the tool “Drillability App”, developed in Task 4.4. This tool is developed to provide a holistic engineering solution to optimize installation and operation of GSHPs.
The aim of the GEO4CIVHIC project is to foster the retrofitting of civil and historical buildings by facilitating installation, reducing costs and increasing efficiency of the different components through shallow geothermal systems. This will be achieved, on one hand by improving drilling machines and methodology, optimizing GSHE design and materials, and using more compact and hybrid HPs for high and low temperature terminals.
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Application for support on field for workers on Geothermal field user manual
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This document presents the manual setup for the “Drillability Application”, which aims to help drillers and designers speed up and facilitate a preliminary geothermal plant feasibility analysis (preliminary evaluation of costs and related energy benefits), thus encouraging the work of designers and GSHE installers.
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Evaluation of performance in real demonstration facility No1
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This document is intended to provide a summary of all the preparatory activities for the Malta case study. In addition, a forward looking strategy is proposed for the smooth execution of the works in view of the interruptions caused by the COVID-19 pandemic.
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Performance evaluation in real demonstration site No 2: Angel’s Gate, Ferrara (Italy)
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The document describes the GEO4CIVHIC project solutions as implemented at the premises of the real site Angel’s Gate in the World Heritage property of Ferrara, City of the Renaissance, and its Po Delta (Italy) located in the geographical purview of the UNESCO Regional Bureau for Science and Culture in Europe.
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Evaluation of performance in real demonstration facility No 4 – Greystones, Ireland
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The deliverable describes the design, installation and monitoring of three of the GEO4CIVHIC project technologies installed in a historical residential house in Co. Wicklow. The house from the 1860s is a historical building and has limited scope for retrofit intervention measures to be applied. The task has designed and will install a 15kW high temperature ground source heat pump developed by Galletti/Hi-Ref to displace the use of a gas fired central heating system. The heat pump and the ancillary supporting equipment are to be installed in a new plant room located in the garage adjacent to the building. The source side of the system comprises the installation of...
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Evaluation of efficiency and viability of installations in individual retrofitted buildings
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The document analyzes, based on the data obtained from monitoring real demonstration sites and the simulated modifications carried out on virtual sites, the energy efficiency improvements in the proposed installations. In order to demonstrate the feasibility of the energy improvements of these new solutions, the specific implementation costs for each of them (in €/m2 for residential buildings and/or €/m3 for non-residential buildings), the specific energy consumption before and after renovation, the percentage of extra-costs due to uncertainties (on the building envelope, on the H&C system, on the GSHP system) and average SCOP and SEER for each solution (high or low temperature terminal) will be evaluated in the report and organized into specific templates. For the analysis in the report, a distinction will be made between civil and historical buildings.
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The report aims to present the LCA results of the project developments in order to highlight the GEO4CIVHIC achievements in environmental terms. LCA activities are cross-sectorial and are directly connected to most of the project activities.
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GEO4CIVHIC Dissemination Events
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Events happened between
April 1st, 2021 – March 31st, 2022
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On-line training course and dissemination event – organized by SUPSI (Switzerland) on April 15th, 2021
Event organized in collaboration with teaching & research staff from University of Padova (Italy) and Svizzera Energia for presenting some results of the GEO4CIVHIC EU funded project. The event was attended by 26 participants.
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Video published by Geoserv
As part of the Energy Show 2021 – the main conference in Ireland organized each year by The Sustainable Energy Authority of Ireland (only online this year) – Geoserv has published a short video to publicize the GEO4CIVHIC technologies and the case study sites in Ireland.
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ENERSTOCK 2021, 9-11 June 2021, Ljubljana, Slovenia
Dr. Burkhard Sanner presented a poster and gave a speech on the topic: “Opportunities for BTES in existing buildings – ideas and first results from project GEO4CIVHIC“.
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On-line conference “Alternative energy sources, materials and technologies (AESMT’21)” - June 14-15, 2021, Ruse, Bulgaria
Oral presentation: “European and municipal scale drillability maps: a tool to identify the most suitable methods to install Borehole HeatExchange (BHE) probes”
Authors: A. Galgaro, A. Carrera, E. Di Sipio,G. Dalla Santa, A. Ramos Escudero, J. M.Cuevas, R. Pasquali, B. Sanner, A.Bernardi
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Webinar “Geothermal systems for building conditioning in urban environment” – organized by UNIPD – DG on June 24th, 2021
The webinar was held in cooperation with Centro Levi Cases (a research center affiliated to UNIPD) and UGI (Italian Geothermal Union)
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European Researchers’ Night 2021 – organized by CNR ITC in Padova on Sept. 24th, 2021
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World Geothermal Congress in Reykjavik (Iceland) - October 25th, 2021
Dr. Adriana Bernardi (CNR) and Mr. Luc Pockele (RED) presented the GEO4CIVHIC Project in a virtual session of the congress, alongside other EU financed projects.
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Key Energy 2021 Fair in Rimini (Italy)
26 to 29 October 26th-29th, 2021
CNR-ISAC disseminated information about the GEO4CIVHIC project.
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International Conference “World Heritage City Lab: Sustainable Development Practices for Urban Heritage” - organized by UNESCO in Kyiv and online on 30 November 2021.
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Final conference in the ITRES Project – Febr. 25th, 2022, organized by the University of Bucharest
ITRES is the acronym for “Innovative Teaching methods for tomorrow’s Renewable Energy Specialists”.
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EGEC webinar - ETIP on Deep Geothermal Working Group 4: Heating & Cooling Systems - March 31st, 2022
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COORDINATOR
1. INSTITUTE OF ATMOSPHERIC SCIENCES AND CLIMATE
NATIONAL RESEARCH COUNCIL (CNR – ISAC)
CONSIGLIO NAZIONALE DELLE RICERCHE NATIONAL RESEARCH COUNCIL (CNR)
Corso Stati Uniti 4, 35127 Padova, Italy www.isac.cnr.it
Contact person: Adriana Bernardi, a.bernardi@isac.cnr.it
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12. SOCIETATEA ROMANA GEOEXCHANGE
(SRG – RGS)
Bdul Pache Protopopescu 66 Sector 2, Bucharest 021414, Romania
www.geoexchange.ro
Contact person:
Robert Gavriliuc,
robertgavriliuc@yahoo.com
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13. CENTRE FOR RENEWABLE ENERGY SOURCES
AND SAVING (CRES)
Marathonos 19th Km, Pikermi 19009, Greece
www.cres.gr
Contact person:
Dimitrios Mendrinos,
dmendrin@cres.gr
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20. SCUOLA UNIVERSITARIA PROFESSIONALE
DELLA SVIZZERA ITALIANA (SUPSI)
Stabile Le Gerre, Manno 6928, Switzerland
www.supsi.ch
Contact person:
Sebastian Pera,
sebastian.pera@supsi.ch
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