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Energioptimering hos Freezing Food AB: Fallstudie i luftväxling och värmeöverföring
Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
2017 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
Abstract [sv]

Arbetet handlade om att utreda energibehovet till följd av en industriport mellan ett fryslager och en utlastningsterminal, samt utreda om anläggningens golvvärme kan arbeta med sänkt temperatur för att minska uppvärmingen av fryslagret, båda delarna med syftet att identifiera energiförluster och kunna sänka energiåtgången.

Energiförlusten till följd av porten identifierades genom uppmätning av luftflöden för att sedan beräknas över ett år med hjälp av en teoretisk modell. För att undersöka golvvärmens driftsparametrar gjordes en litteraturstudie för att bestämma ifall det vore tillrådligt att sänka dess arbetstemperatur.

Slutsatsen blev att portens öppetvarande under år 2016 resulterade i omkring 145MWh i rent termisk energiförlust. Anläggningens vattenburna golvvärme drivs vid cirka 10-12°C vilket är enligt praxis och att en förändring av temperaturen därför inte kan rekommenderas.

Abstract [en]

This thesis was examining the energy demand due to an industrial gate dividing a freezer warehouse and it’s adjacent loading bay, as well as determining whether the facility’s sub-floor heating could be operated at a lower temperature setting in order to decrease the heat transfer into the freezer, both of which with the purpose to identify energy losses and possibly lower the total energy demand.

The energy losses due to the gate were identified by measuring airflow and then calculate the loss over a whole year by means of a theoretical model. To examine the operating parameters of the sub-floor heating, a literature study was conducted in order to determine whether it would be feasible to lower its temperature.

The conclusion was that the opening of the gate during year 2016 resulted in about 145MWh of purely thermal energy loss. The facility’s waterborne sub-floor heating is operated at around 10-12°C, which is according to practice, and a change of temperature cannot be recommended.

Place, publisher, year, edition, pages
2017. , p. 21
Keywords [en]
Freezer warehouse, airflow, sub-floor heating, energy loss
Keywords [sv]
Fryslager, luftflöde, termisk drivkraft, energiförlust
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:lnu:diva-62610OAI: oai:DiVA.org:lnu-62610DiVA, id: diva2:1091356
External cooperation
Freezing Food Småland Öland AB
Subject / course
Chief Engineer
Educational program
Marine Engineering Programme (4 years) with onboard practical training placement, 180 credits
Supervisors
Examiners
Available from: 2017-05-03 Created: 2017-04-26 Last updated: 2017-05-03Bibliographically approved

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CiteExportLink to record
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