https://www.mdu.se/

mdu.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
Energieffektivisering av belysning för växthusodling
Mälardalen University, School of Business, Society and Engineering.
2021 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This case study investigates how the biomass changes depending on changes made to the time interval for the lights and the distance between the crops and light. The study is split in three different cases and each case consists of three batches. The different baches have three different heights between the light and the crops and the heights being used is 55, 110 and 165cm. The light interval in the first case was 12 hours, 6 hours for case 2 and 3 hours for the last case. 

Case 1 had an average biomass weight of 28,5 g, for batches 1-3 and the light interval was twelve hours. In case 1 and 2 the pea plants looked healthy and green but in case 2 the plants were taller, and the leaves had widened more. Case 2 had an average biomass weight of     55,5 g, for batches 4-6 when the interval of the lights was 6 hours. The last case generated the most biomass of all the cases with an average of 102,5 g for batches 7-9, and the plants was completely yellow. Case 2 compared to case 1 gave double biomass yield for the same amount of energy used. One-way Anova determined that it was not any statistically significant difference between the batches but, however, it was for the different cases. 

Place, publisher, year, edition, pages
2021. , p. 44
Keywords [sv]
Belysningsintervall, Biomassa, LED-belysning, Gula ärtor, Vertikalodling
National Category
Food Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-54721OAI: oai:DiVA.org:mdh-54721DiVA, id: diva2:1564869
External cooperation
Veponic AB
Subject / course
Energy Engineering
Supervisors
Examiners
Available from: 2021-06-22 Created: 2021-06-13 Last updated: 2021-06-22Bibliographically approved

Open Access in DiVA

fulltext(2381 kB)128 downloads
File information
File name FULLTEXT01.pdfFile size 2381 kBChecksum SHA-512
8281b8d40135d1de2d04d655f5263668b00f63da42af275cc635f0d51c37d8cb8fa14f4d3e744a7b03a31859eb305922b7313a67d02977671f4877ae2b94492e
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Petrov, Peter
By organisation
School of Business, Society and Engineering
Food Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 128 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: 192 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