mdh.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Snökyla för is och komfort: Möjligheter att använda snö för komfortkyla och isproduktion vid Rocklundas idrottsarenor
Mälardalen University, School of Business, Society and Engineering.
2017 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The idea of snow cooling in this case is to save snow from winter to summer and to use it for air conditioning and for saving energy in the production of ice in hockey arenas. Today in Sweden, snow power on a large scale is used only on one place, the hospital in Sundsvall. There you’ll find a pond with 70 000 m3 of snow. The melt water in the pond is heated up while cooling down warm air from the hospital, before circulating back to the pond where it regains a low temperature passing through the snow. The idea was to examine the possibility to use such a system in Västerås, at the multiple sports arenas at Rocklunda, partly for air conditioning and partly for ice production. This work was made possible through gathering information on snow storage and on the Sundsvall snow cooling plant, by interviewing people with insight in the Sundsvall hospital and Rocklunda sports arenas and by calculating the electricity consumption, necessary amount of snow and making an LCC-analysis. For air conditioning the melt water would be used like in Sundsvall but for ice production the melt water would be used for condensing the cooling media in the heat pump at a lower temperature then it would do while cooling with air or river water during summer. Annual electricity savings of 120 and 154 MWh for the arenas were made for 2016 and 2017 when using the snow for ice production. For the air conditioning the saving were estimated to around 55 MWh per year. A snow dispatch hatch in one of the hockey arenas made an alternative to a full-scale snow cooling system. Using this hatch for temporal snow power could save up to 62 MWh per year when used for ice production and 38 MWh when used for air conditioning. The estimated costs for construction of said system proved to be too expensive for making a full-scale snow power system a reality. For ice production a storage of 103 000 m3 of snow was needed which made for a result of -57 MSEK in the LCC-analysis. For the air conditioning alone, a storage of 6 000 m3 was needed which made for a result of -4.2 MSEK. The snow dispose hatch, even without the need of snow storage, resulted in -5.9 MSEK for ice production and -1.6 MSEK for air conditioning. With more thoroughly estimations of the investment costs, together with global warming and thus bigger potential for saving energy, this might be a promising investment in the future.

Place, publisher, year, edition, pages
2017. , p. 84
Keywords [en]
snow cooling, air condition, ice production, free cooling, nature cooling, cooling machine, melt water
Keywords [sv]
snökyla, komfortkyla, isproduktion, frikyla, naturkyla, kylmaskin, smältvatten
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:mdh:diva-37481OAI: oai:DiVA.org:mdh-37481DiVA, id: diva2:1167370
Subject / course
Energy Engineering
Presentation
2017-12-15, R1-302, Högskoleplan 1, Västerås, 08:45 (Swedish)
Supervisors
Examiners
Available from: 2018-01-14 Created: 2017-12-18 Last updated: 2018-01-14Bibliographically approved

Open Access in DiVA

fulltext(20840 kB)15 downloads
File information
File name FULLTEXT01.pdfFile size 20840 kBChecksum SHA-512
971f8a53754893985fb2a3f957f79297f4bdb03e934428e1b9f7a0573e88acafe831dbcc0583bb9065f845003ecc4b670289e28ba642830d3ae4fabfab66969d
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Vera Ibanez, Anatole
By organisation
School of Business, Society and Engineering
Energy Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 15 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 32 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf