Change search
ReferencesLink to record
Permanent link

Direct link
Energiteknisk utredning vid Boliden Rönnskär: Temperaturökning på svavelsyraverkets fjärrvärmeproduktion
2015 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Rönnskärverken is part of Boliden Mineral AB and is located on the coast outside of Skellefteå. Rönnskär receives raw materials from mines and electronic scrap to produce mainly copper, but also gold, silver, zinc and lead. In addition byproducts of sulfur dioxide and sulfuric acid are produced from the metal production. Besides this waste heat from processes is collected and produces steam and district heating. The steam is used to keeping boilers warm and in certain processes and production of district heating for local heating at Rönnskärsverken and consumers in Skelleftehamn and Ursviken. In the current situation waste heat from some processes is used and in addition to these, there are additional sources of heat that can be taken advantage of. Among these are the waste heat in a chimney connected to the sulfuric acid production and a cooler linked to the sea.This report deals with an investigation of the effect on Rönnskär’s steam- and district heating grid that a temperature increase on the produced district heating provides. The effects of two proposals on the utilization of the waste heat from a chimney tied to the sulfuric acid production and a proposal with the use of water vapor from the steam grid were investigated and compared economically.The investigation showed that one of the proposals, which uses waste heat from the chimney and a reduction in thermal cooling of heat with sea water, is of the examined proposals more advantageous from a financial perspective. This proposal corresponds to a saving of approximately 681 m3 oil of the type fuel oil 5 per year and is calculated to repay its investment cost within 6 months.

Place, publisher, year, edition, pages
2015. , 60 p.
Keyword [en]
Keyword [sv]
Teknik, Energiteknik, högskoleingenjör, utredning
URN: urn:nbn:se:ltu:diva-58304Local ID: ee3f1df4-8477-40c4-a54a-7dad7e7185ccOAI: diva2:1031692
External cooperation
Subject / course
Student thesis, at least 15 credits
Educational program
Energy Engineering, bachelor's level
Validerat; 20151113 (global_studentproject_submitter)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

Open Access in DiVA

fulltext(2731 kB)0 downloads
File information
File name FULLTEXT02.pdfFile size 2731 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search outside of DiVA

GoogleGoogle Scholar
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

ReferencesLink to record
Permanent link

Direct link