Change search
ReferencesLink to record
Permanent link

Direct link
Livscykelanalys: Pelletspanna från kvänum energi
University of Skövde, School of Technology and Society.
University of Skövde, School of Technology and Society.
2012 (Swedish)Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
Abstract [en]

This study will identify the environmental impact in terms of carbon dioxide for a boiler house on behalf of Kvänum energi. The boiler central consists of a main building, which in turn contains multiple components such as boilers, pipes, etc, the boiler central uses pellets fuel. It also includes a silo and an ash container. The total weight of the boiler is about 63 tons. Each boiler has an output of 600 kW; the central includes three boilers with room for a fourth if necessary. The study has followed the ISO 14040 as far as it has been possible. The boiler central is manufactured at Kvänum Energi’s plant in Kvänum and then assembled on-site for the customer. When analyzing the system the entire product has been divided into smaller parts to make the analysis more manageable. The breakdown was made regarding the material. The conclusions from the calculations of emissions were that material was of greater importance to the environment than transportation. Design improvement proposal was mainly focused on materials and how any change of material would affect the environment and energy consumption. The ability to construct the building and silo in aluminum was investigated from the strength, price and environmental impact point of views. From design point of view, steel and aluminum are equivalent for the purpose, but in terms of cost, aluminum is more expensive. However the recycling option is significantly better for aluminum. EPS (Environmental Priority Strategies), which is a Swedish method developed for engineers at Volvo, was used for the calculation of environmental impact. When comparing steel and aluminum, the aluminum construction received a lower value regarding carbon dioxide i.e. better from an environmental perspective. The study includes a short survey on a transport to a fossil fuel dependent country, and it is investigated whether such a transport would be justified. The transport would be by boat and truck and the resulting emissions from the transport is about 1 ton of CO2. In the study, Lithuania has been chosen as an example because it has the same climate as in Sweden, i.e. a large need for heating during winter, and also because that Lithuania has a high dependence of oil and gas for heating.

Place, publisher, year, edition, pages
2012. , 51 p.
Keyword [sv]
Livscykelanalys Pellets Panncentral LCA Utsläpp Materialval CES
National Category
Other Mechanical Engineering
URN: urn:nbn:se:his:diva-6610OAI: diva2:565101
Subject / course
Mechanical Engineering
Educational program
Development Assistance Engineer
2012-11-06, G316, Högskolan i skövde, Skövde, 11:00
Available from: 2012-11-06 Created: 2012-11-06 Last updated: 2012-11-06Bibliographically approved

Open Access in DiVA

fulltext(2558 kB)337 downloads
File information
File name FULLTEXT01.pdfFile size 2558 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Junefjäll, JohanBäckerstam, Valentina
By organisation
School of Technology and Society
Other Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 337 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

Total: 234 hits
ReferencesLink to record
Permanent link

Direct link