Use of the waste heat from the chillers for the heating of Läkerol Arena in Gävle
Every day, huge amounts of energy are used by all sectors of the economy. From transport to industries, energy constitutes the base of development and people’s way of living. Besides, the energetic demand of millions of individuals must be satisfied with resources that are in constant depletion whil...
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ftupcatalunyair:oai:upcommons.upc.edu:2099.1/25569 2024-09-15T18:11:41+00:00 Use of the waste heat from the chillers for the heating of Läkerol Arena in Gävle Mata González, Jaume Högskolan i Gävle Forsberg, Roland 2013 application/pdf http://hdl.handle.net/2099.1/25569 eng eng Universitat Politècnica de Catalunya Högskolan I Gävle http://hdl.handle.net/2099.1/25569 Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Open Access Àrees temàtiques de la UPC::Energies::Termoenergètica::Termotècnia Waste heat Heat recovery Heat -- Radiation and absorption Calor residual Calor -- Recuperació Calor -- Radiació i absorció Bachelor thesis 2013 ftupcatalunyair 2024-07-25T10:57:41Z Every day, huge amounts of energy are used by all sectors of the economy. From transport to industries, energy constitutes the base of development and people’s way of living. Besides, the energetic demand of millions of individuals must be satisfied with resources that are in constant depletion while the consumption is growing at a 2% rate every year. The consequence of such increase is that in the last decade energy costs have risen extremely fast. Societies must now find a way of maintaining the actual social-economic growth whilst reducing the energy demand in order to ensure sustainable development. Ice hockey arenas in Sweden have an average energy consumption of more than 1000 MWh per year, and around 42% of the total is used by the refrigeration system to cool the rink surface. The core of these units is the chiller, a machine that removes heat from a cold refrigerant and as a product of this chilling process, waste heat is generated. This energy can be exhausted to the environment or recovered for heating purposes. The main aim of this study is to investigate the uses given to the waste heat in Läkerol Arena, in Gävle. Some alternatives have been proposed and analysed in order to diminish the amount of rejected heat. Other objectives set in this project are to examine the possibility of reducing the dependence on district heating and to determine the efficacy of insulating the ground below the heating pipes that prevent permafrost. Nowadays the heat recovery system is used to preheat tap water until 30ºC and then up to 60ºC, to warm the air sent to the main rink area and to prevent the creation of permafrost in the ground below the main arena. The unused energy is sent to ambient with six big fans placed on the roof. The first additional use for waste heat proposed in this study is to design a heating system just for the resurfacing water. The current method in Läkerol Arena is to mix hot tap water with cold water. The problem is that the first one is three times more expensive than the second, so ... Bachelor Thesis Ice permafrost Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
institution |
Open Polar |
collection |
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
op_collection_id |
ftupcatalunyair |
language |
English |
topic |
Àrees temàtiques de la UPC::Energies::Termoenergètica::Termotècnia Waste heat Heat recovery Heat -- Radiation and absorption Calor residual Calor -- Recuperació Calor -- Radiació i absorció |
spellingShingle |
Àrees temàtiques de la UPC::Energies::Termoenergètica::Termotècnia Waste heat Heat recovery Heat -- Radiation and absorption Calor residual Calor -- Recuperació Calor -- Radiació i absorció Mata González, Jaume Use of the waste heat from the chillers for the heating of Läkerol Arena in Gävle |
topic_facet |
Àrees temàtiques de la UPC::Energies::Termoenergètica::Termotècnia Waste heat Heat recovery Heat -- Radiation and absorption Calor residual Calor -- Recuperació Calor -- Radiació i absorció |
description |
Every day, huge amounts of energy are used by all sectors of the economy. From transport to industries, energy constitutes the base of development and people’s way of living. Besides, the energetic demand of millions of individuals must be satisfied with resources that are in constant depletion while the consumption is growing at a 2% rate every year. The consequence of such increase is that in the last decade energy costs have risen extremely fast. Societies must now find a way of maintaining the actual social-economic growth whilst reducing the energy demand in order to ensure sustainable development. Ice hockey arenas in Sweden have an average energy consumption of more than 1000 MWh per year, and around 42% of the total is used by the refrigeration system to cool the rink surface. The core of these units is the chiller, a machine that removes heat from a cold refrigerant and as a product of this chilling process, waste heat is generated. This energy can be exhausted to the environment or recovered for heating purposes. The main aim of this study is to investigate the uses given to the waste heat in Läkerol Arena, in Gävle. Some alternatives have been proposed and analysed in order to diminish the amount of rejected heat. Other objectives set in this project are to examine the possibility of reducing the dependence on district heating and to determine the efficacy of insulating the ground below the heating pipes that prevent permafrost. Nowadays the heat recovery system is used to preheat tap water until 30ºC and then up to 60ºC, to warm the air sent to the main rink area and to prevent the creation of permafrost in the ground below the main arena. The unused energy is sent to ambient with six big fans placed on the roof. The first additional use for waste heat proposed in this study is to design a heating system just for the resurfacing water. The current method in Läkerol Arena is to mix hot tap water with cold water. The problem is that the first one is three times more expensive than the second, so ... |
author2 |
Högskolan i Gävle Forsberg, Roland |
format |
Bachelor Thesis |
author |
Mata González, Jaume |
author_facet |
Mata González, Jaume |
author_sort |
Mata González, Jaume |
title |
Use of the waste heat from the chillers for the heating of Läkerol Arena in Gävle |
title_short |
Use of the waste heat from the chillers for the heating of Läkerol Arena in Gävle |
title_full |
Use of the waste heat from the chillers for the heating of Läkerol Arena in Gävle |
title_fullStr |
Use of the waste heat from the chillers for the heating of Läkerol Arena in Gävle |
title_full_unstemmed |
Use of the waste heat from the chillers for the heating of Läkerol Arena in Gävle |
title_sort |
use of the waste heat from the chillers for the heating of läkerol arena in gävle |
publisher |
Universitat Politècnica de Catalunya |
publishDate |
2013 |
url |
http://hdl.handle.net/2099.1/25569 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_relation |
http://hdl.handle.net/2099.1/25569 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Open Access |
_version_ |
1810449271421403136 |