liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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
Värmestrålning i ugn för hushållsbruk, modellering – simulering - experiment
Linköping University, Department of Electrical Engineering. Linköping University, The Institute of Technology.
2005 (Swedish)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesisAlternative title
Heat radiation in ovens for domestic use, modeling – simulation - experiment (English)
Abstract [sv]

I många mikrovågsugnar finns grillelement som kan färgsätta matens yta. Vissa kommande modeller av mikrovågsugnar planeras vara utan roterande tallrik och maten blir då stillastående. Därför måste grillelementen och tillhörande reflektorer optimeras så värmestrålningen om möjligt blir jämnt fördelad i ugnen. Syftet med examensarbetet är att undersöka hur värmestrålningen i ugnarna kan beräknas så optimeringar kan göras. Värmestrålningen i en befintlig mikrovågsugn har simulerats och mätts. Simuleringarna och mätningarna visar att värmestrålningens fördelning bör kunna beräknas med tillräcklig noggrannhet då quartzglasen som omger grillelementens värmetrådar försummas, reflektionerna ansätts som diffusa och ytorna ansätts som grå. Väggarnas emissionstal har troligen mindre betydelse för strålningsfördelningen, men påverkar den absoluta strålningen.

Abstract [en]

In many microwave ovens are grill elements, which give color to the food surface. Some future models of microwave ovens are designed with no turning table and the food will therefore be stationary. The grill elements and their reflectors must therefore be optimized so the heat radiation if possible will be evenly distributed in the oven. The purpose of this work is to examine how the heat radiation in the ovens can be calculated, thus the optimization can be carried out. The heat radiation in an existing microwave oven has been simulated and measured. The simulations and measurements show that the distribution of the heat radiation should be calculated with sufficient accuracy when the quartz glass that surrounds the filament of the grill element is neglected, reflections are assumed to be diffuse and the surfaces are assumed to be mathematically grey. The emissivities of the surfaces

Place, publisher, year, edition, pages
2005. , 41 + 3 bilagor p.
Keyword [sv]
Värmeöverföring, värmestrålning, mikrovågsugn, hushållsugn, ugn, grillelement, Femlab, Radtherm, Fluent, Matlab
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-100124ISRN: LiTH-IKP-Ex--04/2181--SEOAI: oai:DiVA.org:liu-100124DiVA: diva2:659823
Subject / course
Applied Thermodynamics and Fluid Mechanics
Available from: 2013-10-28 Created: 2013-10-28 Last updated: 2013-10-28Bibliographically approved

Open Access in DiVA

fulltext(967 kB)67 downloads
File information
File name FULLTEXT01.pdfFile size 967 kBChecksum SHA-512
8c0e28f0bf9723e2e2e523c08baf54c2ea5f5d53200fef34875972f81da1238fd38f177b0df493d9e944cdcb2ec219dbf78d8b2c401a88176a40b8dbca6b8018
Type fulltextMimetype application/pdf

By organisation
Department of Electrical EngineeringThe Institute of Technology
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 67 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: 86 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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