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Fjärrvärmedriven komfortkyla: En teknoekonomisk analys av småskalig absorptionskyla
2016 (Swedish)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The purpose of this report is to investigate the technical and economic potential with small scale absorptions chillers (<200 kW cooling capacity). The investigation is done though a life cycle cost analysis comparing absorption chillers to compressor chillers of equal cooling capacity. The analysis includes costs for installation, maintenance/operation and energy (heat/electricity). The emphasis is put on the conditions present in Västerås, and customers connected to the district heating network. The results are presented in the form of a number of different case studies. Including a large- and small scale business, and an apartment complex. A special case detailing the cost at which district heating would have to be made available in order to reach break-even with a compressor chiller is also presented.The default case studies are evaluated with a district heating price of 75 SEK/MWh and an electricity price of 700 SEK/MWh. The results show that for a machine size of 70 kW, absorptions chillers have a life cycle cost that is 60 000 to 360 000 SEK higher compared to a compressor chiller. For the apartment complex with an 18 kW absorption chiller had a life cycle cost that is 60 000 to 300 000 SEK higher compared to a compressor chiller. The cost analysis showed that district heating would have to be offered at a price point of around 50 SEK/MWh during the period May through September, in order to make machine sizes around 125 kW break even with a compressor chiller. That according to the most favorable price model used in the project.The conclusions of the project are that small scale absorptions chillers are unlikely to be able to compete with compressor chillers from a cost perspective. An investment in absorption cooling should perhaps be valued from other viewpoints, such as its ability of tying customers to the district heating network.

Place, publisher, year, edition, pages
2016. , 44 p.
Keyword [en]
Keyword [sv]
Teknik, Teknoekonomisk, absorptionskyla, livscykelanalys
URN: urn:nbn:se:ltu:diva-44935Local ID: 2adaef76-a222-465c-8d00-c986fd9c0098OAI: diva2:1018214
Subject / course
Student thesis, at least 30 credits
Educational program
Sustainable Energy Engineering, master's level
Validerat; 20160615 (global_studentproject_submitter)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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