This section provides downloads and links to articles, papers, reports and diagrams, plus relevant and related guides.  

The project deliverables will also be accessible here, and shall be added to whilst the project progresses.

MODEL AND VALIDATION OF A MULTI-FAMILY BUILDING 'HAUS M' USING MODELICA

File size: 3mb

Model and Validation of a Multi-family Building 'Haus M' Using Modelica

Authors: Josué Borrajo Bastero, Eline Himpe, Martin Ménard, Anne Caminade, Jelle Laverge

At the Building Simulation Conference 2019 http://buildingsimulation2019.org/  1-4 September, Rome, our University of Ghent partners, Josué Borrajo Bastero and Rana Mahmoud presented UGent and Lemon Consult's research related to hybridGEOTABS. The adjacent paper is from Josué's presentation, "Model and Validation of a Multi-family Building 'Haus M' Using Modelica"

Rana presenting a paper: “A Modelling Approach to Reduce the Simulation Time of Building Stock Models”

 

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A MODELLING APPROACH TO REDUCE THE SIMULATION TIME OF BUILDING STOCK MODELS

File size: 761kb

A Modelling Approach to Reduce the Simulation Time of Building Stock Models

Authors: Rana Mahmoud, Eline Himpe, Marc Delghust, Jelle Laverge

At the Building Simulation Conference 2019 http://buildingsimulation2019.org/  1-4 September, Rome, our University of Ghent partners, Josué Borrajo Bastero and Rana Mahmoud presented UGent and Lemon Consult's research related to hybridGEOTABS. The adjacent paper is from Rana's presentation: “A Modelling Approach to Reduce the Simulation Time of Building Stock Models”

Josué's presentation, also in Publications is "Model and Validation of a Multi-family Building 'Haus M' Using Modelica"

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MODEL AND VALIDATION OF A MULTI-FAMILY BUILDING ‘HAUS M’ USING MODELICA POSTER

File size: 981kb

Model and Validation of a Multi-family Building ‘Haus M’ Using Modelica

At the Building Simulation Conference 2019 http://buildingsimulation2019.org/  1-4 September, Rome, our University of Ghent partners, Josué Borrajo Bastero and Rana Mahmoud presented UGent and Lemon Consult's research related to hybridGEOTABS. The adjacent poster is from Josué's presentation, "Model and Validation of a Multi-family Building 'Haus M' Using Modelica"

Download the Poster here

THERMAL COMFORT IN A GEOTABS HOME FOR THE ELDERLY

File size: 9mb

Claudia Leliveld

Supervisor: Prof. dr. ir.-arch. Jelle Laverge
Counsellors: Dr. ir.-arch. Eline Himpe, Prof. Ongun Berk Kazanci (Danish Technical University), Dr. ir. Rick Kramer (Maastricht University), Prof. ir. Wim Boydens

Abstract
GEOTABS buildings use geothermal energy to heat and cool the building by use of a heat exchanger and heat pump. This energy efficient method can possibly partly give an answer to the changing climate. The thermally activated building system (TABS) are hydronic pipes embedded in the building structure that exchange heat to and from the surrounding concrete in order to heat or cool the rooms. This type of radiant heating and cooling should at the same time provide a comfortable thermal environment. As this system uses moderate supply temperatures and large surfaces for heat exchange, it is expected to be able to create a rather uniform indoor environment for a long time. This technology is up to now mostly present in offices, but research is going on in order to implement it in more types of buildings. This thesis wants to examine if GEOTABS and elderly homes can form a good combination. Therefore research is first done to find what thermal comfort is and how it can be established. In addition, information is looked for to see if elderly experience thermal comfort the same way as younger people or not. In a new elderly home that uses GEOTABS, measurements are done and questionnaires are gathered to gain insight in the existing thermal environment and the experience of the residents. This data is then compared to the stated benefits of TABS concerning thermal comfort and to the design criteria of thermal comfort models. Multiple advantages of radiant heating and cooling systems could be recognised and above all most of the elderly felt comfortable in the elderly home. Nevertheless some improvements can still be made to create an even more comfortable environment. Based on all this information it can be confirmed that GEOTABS are suitable for use in elderly homes.

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EXPERIMENTAL COMPARISON OF RADIANT CEILING PANELS AND CEILING PANELS CONTAINING PHASE CHANGE MATERIAL (PCM)

File size: 927kb

Authors: Dragos-Ioan Bogatu, Eleftherios Bourdakis, Ongun Berk Kazanci and Bjarne W. Olesen 

CLIMA 2019 Conference 27 May 2019, Romania

Two commercially available ceiling panels, one metal and one gypsum incorporating microencapsulated PCM were compared experimentally to determine their limitations and ability to provide an adequate indoor thermal environment. The experiments took place from February to May 2018 in a climate chamber at the Technical university of Denmark. In total, seven scenarios were evaluated, five with active cooling, where the flow rate and solar heat gains were varied, and two without. Results showed that according to EN 15251:2007, the RCPs maintained the best indoor thermal environment for 91 % of occupancy time in Category III – operative temperature between 22 oC and 27 oC, and 75 % in Category II – operative temperature between 23 oC and 26 oC, for a 140 kg/h flow rate and the reference solar heat gains. Alternatively, the PCM panels maintained Category III for only 48 % of the time, while only 30 % in Category II for a 220 kg/h flow rate and the reference solar heat gains. The PCM panel presented the ability to store the heat for a later time. However, the PCM panels’ solution proved inadequate in terms of heat storage capacity, pipe positioning and thermal conductivity while improvements are required in order to employ them in new and renovated buildings. 

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ESTIMATION OF LOAD DURATION CURVES FROM GENERAL BUILDING DATA IN THE BUILDING STOCK USING DYNAMIC BES-MODELS

File size: 665kb

Authors: Rana M. Mahmoud, Mohsen Sharifi, Eline Himpe, Marc Delghust and Jelle Laverge

CLIMA 2019 Conference 27 May 2019, Romania

Modelling and simulation of building stock is a valuable source of information for investigating the feasibility of implementing new heating and cooling system technologies. Some of these technologies have oversizing problem as the designers rely on their experience and previous knowledge. Building stock modelling can provide a solution for more accurate designing process. However, some of the current building stock modelling methods uses a representative building which can exclude whole ranges of the different combinations of building geometry and physical properties that can be crucial for heating and cooling load estimation. Therefore, we developed a methodology that allows faster and accurate building energy simulation (BES) multizone models from general building information of the whole building stock that is able to estimate load duration. This will help engineers and designers to decide on the system sizing at the early design stages. This paper presents first, the process of generating dynamically heating and cooling load duration curves by using BES-models from general geometrical data of the building stock. Second, we examine the process on a sample of the building stock where geometrical and physical parameters were varied. The workflow of the process has worked successfully, generating heating and cooling duration curves for 14 case studies. We observed that heating and cooling loads are highly influenced by different combinations of parameters. High glazing percentage affects highly the heat losses, thus more heating loads. Besides, for a west oriented building, the high glazing percentage combined with high internal gains can be the reason for significant cooling loads. In next steps, we are going to extend the current methodology to cover different building typologies within different climates across Europe.

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