Sofie Osbeck
Swerea IVF AB, Mölndal, Sweden
Charlotte Bergek
Swerea IVF AB, Mölndal, Sweden
Anders Klässbo
Swerea IVF AB, Mölndal, Sweden
Patrik Thollander
Department of Management and Engineering, Linköping Univeristy, Linköping, Sweden
Simon Harvey
Department of Energy and Environment, Chalmers University of Technology, Göteborg, Sweden
Patrik Rohdin
Department of Management and Engineering, Linköping Univeristy, Linköping, Sweden
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http://dx.doi.org/10.3384/ecp110571700Published in: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden
Linköping Electronic Conference Proceedings 57:29, p. 1700-1707
Published: 2011-11-03
ISBN: 978-91-7393-070-3
ISSN: 1650-3686 (print), 1650-3740 (online)
A new challenge to reduce energy usage has emerged in Swedish industry because of increasing energy costs. Energy usage in the Swedish powder coating industry is about 525 GWh annually. This industry has a long and successful record of working towards reduced environmental impact. However; they have not given priority to energy saving investments. Electricity and LPG; for which end-user prices are predicted to increase by as much as 50 – 60% by 2020; are the main energy carriers used in the plants. This paper presents the results of two detailed industrial energy audits conducted with the aim of quantifying the energy efficiency potential for the Swedish powder coating industry. Energy auditing and pinch analysis methods were used to identify possible energy housekeeping measures and heat exchanging opportunities. The biggest users of energy within the plants are the cure oven; drying oven and pre-treatment units. The energy use reduction by the housekeeping measures is 8 – 19% and by thermal heat recovery an additional 8 – 13%. These measures result in an average energy cost saving of 25% and reduction of carbon dioxide emissions of 30%. The results indicate that the powder coating industry has a total energy efficiency potential of at least 20%.
