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Dynamic modelling of geothermal heat pump system coupled with positive-energy building

Vittoria Battaglia, Laura Vanoli, Clara Verde, Perumal Nithiarasu Orcid Logo, Justin Searle Orcid Logo

Energy, Volume: 284, Start page: 128557

Swansea University Authors: Perumal Nithiarasu Orcid Logo, Justin Searle Orcid Logo

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DOI (Published version): 10.1016/j.energy.2023.128557

Abstract

During the last decades, several studies have shown that heat pumps are a promising solution to reach the European Union targets on climate change mitigation, since they satisfy the energy needs for heating, cooling and hot water production employing a single device and using a significant share of...

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Published in: Energy
ISSN: 0360-5442
Published: Elsevier BV 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa64366
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However, the full exploitation of the energy-saving potential of heat pumps is a difficult task for designers to achieve, as several factors, such as the variability of outdoor climatic conditions, the control logic of the system and the system configuration, influence the energy performance. High Coefficient of Performance (COP) and low environmental impact make Ground Source Heat Pump (GSHP) systems one of the most suitable technologies for the heating and cooling services, to promote the decarbonization of the building sector, especially in urban areas. The objective of this study is to assess a range of strategies for heat pump systems to achieve optimal performance that can be fully utilized. To do this, the authors analyse the performance of a ‘positive’ office building, located in Swansea University Bay, which is already featured with renewable energy technologies for electricity and heat generation: an integrated photovoltaic roof to generate electricity and a wall-photovoltaic thermal system. The current configuration (‘baseline scenario’) of the building-plant system was modelled in TRNSYS 17 environment and the influence of different parameters on the energy performances was studied. To complement the already high use of renewables the authors propose an alternative scenario for the Active Office Building integrating the use of geothermal heat pumps with the existing systems. 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spelling v2 64366 2023-09-04 Dynamic modelling of geothermal heat pump system coupled with positive-energy building 3b28bf59358fc2b9bd9a46897dbfc92d 0000-0002-4901-2980 Perumal Nithiarasu Perumal Nithiarasu true false 0e3f2c3812f181eaed11c45554d4cdd0 0000-0003-1101-075X Justin Searle Justin Searle true false 2023-09-04 CIVL During the last decades, several studies have shown that heat pumps are a promising solution to reach the European Union targets on climate change mitigation, since they satisfy the energy needs for heating, cooling and hot water production employing a single device and using a significant share of renewable energy. However, the full exploitation of the energy-saving potential of heat pumps is a difficult task for designers to achieve, as several factors, such as the variability of outdoor climatic conditions, the control logic of the system and the system configuration, influence the energy performance. High Coefficient of Performance (COP) and low environmental impact make Ground Source Heat Pump (GSHP) systems one of the most suitable technologies for the heating and cooling services, to promote the decarbonization of the building sector, especially in urban areas. The objective of this study is to assess a range of strategies for heat pump systems to achieve optimal performance that can be fully utilized. To do this, the authors analyse the performance of a ‘positive’ office building, located in Swansea University Bay, which is already featured with renewable energy technologies for electricity and heat generation: an integrated photovoltaic roof to generate electricity and a wall-photovoltaic thermal system. The current configuration (‘baseline scenario’) of the building-plant system was modelled in TRNSYS 17 environment and the influence of different parameters on the energy performances was studied. To complement the already high use of renewables the authors propose an alternative scenario for the Active Office Building integrating the use of geothermal heat pumps with the existing systems. By comparing the two scenarios on an energy and environmental point of view, it was possible to assess an 11% decrease in primary energy consumption, leading to a corresponding 11% reduction in greenhouse gas (GHG) emissions. Journal Article Energy 284 128557 Elsevier BV 0360-5442 Heat pumps, Ground Source Heat Pump, GSHP, greenhouse gas emissions, positive-energy building 1 12 2023 2023-12-01 10.1016/j.energy.2023.128557 http://dx.doi.org/10.1016/j.energy.2023.128557 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2023-10-10T14:15:59.1380057 2023-09-04T11:39:41.8373560 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Vittoria Battaglia 1 Laura Vanoli 2 Clara Verde 3 Perumal Nithiarasu 0000-0002-4901-2980 4 Justin Searle 0000-0003-1101-075X 5 64366__28435__47a6ad25a6cd435fabcd515e0bb19273.pdf 64366.pdf 2023-09-04T11:44:43.1144500 Output 5864974 application/pdf Version of Record true © 2023 The Author(s). Published by Elsevier Ltd. Distributed under the terms of a Creative Commons Attribution 4.0 License (CC BY 4.0). true eng http://creativecommons.org/licenses/by/4.0/
title Dynamic modelling of geothermal heat pump system coupled with positive-energy building
spellingShingle Dynamic modelling of geothermal heat pump system coupled with positive-energy building
Perumal Nithiarasu
Justin Searle
title_short Dynamic modelling of geothermal heat pump system coupled with positive-energy building
title_full Dynamic modelling of geothermal heat pump system coupled with positive-energy building
title_fullStr Dynamic modelling of geothermal heat pump system coupled with positive-energy building
title_full_unstemmed Dynamic modelling of geothermal heat pump system coupled with positive-energy building
title_sort Dynamic modelling of geothermal heat pump system coupled with positive-energy building
author_id_str_mv 3b28bf59358fc2b9bd9a46897dbfc92d
0e3f2c3812f181eaed11c45554d4cdd0
author_id_fullname_str_mv 3b28bf59358fc2b9bd9a46897dbfc92d_***_Perumal Nithiarasu
0e3f2c3812f181eaed11c45554d4cdd0_***_Justin Searle
author Perumal Nithiarasu
Justin Searle
author2 Vittoria Battaglia
Laura Vanoli
Clara Verde
Perumal Nithiarasu
Justin Searle
format Journal article
container_title Energy
container_volume 284
container_start_page 128557
publishDate 2023
institution Swansea University
issn 0360-5442
doi_str_mv 10.1016/j.energy.2023.128557
publisher Elsevier BV
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
url http://dx.doi.org/10.1016/j.energy.2023.128557
document_store_str 1
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description During the last decades, several studies have shown that heat pumps are a promising solution to reach the European Union targets on climate change mitigation, since they satisfy the energy needs for heating, cooling and hot water production employing a single device and using a significant share of renewable energy. However, the full exploitation of the energy-saving potential of heat pumps is a difficult task for designers to achieve, as several factors, such as the variability of outdoor climatic conditions, the control logic of the system and the system configuration, influence the energy performance. High Coefficient of Performance (COP) and low environmental impact make Ground Source Heat Pump (GSHP) systems one of the most suitable technologies for the heating and cooling services, to promote the decarbonization of the building sector, especially in urban areas. The objective of this study is to assess a range of strategies for heat pump systems to achieve optimal performance that can be fully utilized. To do this, the authors analyse the performance of a ‘positive’ office building, located in Swansea University Bay, which is already featured with renewable energy technologies for electricity and heat generation: an integrated photovoltaic roof to generate electricity and a wall-photovoltaic thermal system. The current configuration (‘baseline scenario’) of the building-plant system was modelled in TRNSYS 17 environment and the influence of different parameters on the energy performances was studied. To complement the already high use of renewables the authors propose an alternative scenario for the Active Office Building integrating the use of geothermal heat pumps with the existing systems. By comparing the two scenarios on an energy and environmental point of view, it was possible to assess an 11% decrease in primary energy consumption, leading to a corresponding 11% reduction in greenhouse gas (GHG) emissions.
published_date 2023-12-01T14:16:00Z
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