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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao LUTPubarrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
LUTPub
2007
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Energiankäytön tehostamispotentiaalit UPM-Pelloksen vaneritehtailla

Authors: Niilola, Antti;

Energiankäytön tehostamispotentiaalit UPM-Pelloksen vaneritehtailla

Abstract

UPM-Pelloksen vaneritehtaat muodostavat Euroopan suurimman vanerintuotantoyksiköntuotantokapasiteetilla mitattuna. Pelloksen vaneritehtailla on kolme eri tehdasta yhdellä tehdasalueella. Vaneritehtaiden viilunkuivaus on hyvin merkittävä primäärienergian kuluttaja. Tehtaiden prosessienergian saannista huolehtii Järvi-Suomen Voiman voimalaitos. Viilunkuivaajien poistokaasuista jalauhteista saadaan talteen merkittävästi sekundäärienergiaa. Sekundäärienergia kulutetaan pääosin hautomoaltaalla tukkien haudontaan. Tukkien haudonta pyritäänhoitamaan lähes kokonaan sekundäärienergialla. Primäärihöyryä tarvitaan altaalle kuitenkin huoltoseisakkien aikana. Tässä diplomityössä tutustutaan vanerin valmistuksen prosessiin Pelloksen vaneritehtailla. Työssä kartoitetaan tehtaiden prosessien, hautomoaltaan ja voimalaitoksen välisiä energiavirtauksia. Työn tarkoituksena on saada selville mahdollisia hyödyntämättömiä potentiaaleja tehtaiden energiankäytössä. Työssä pohditaan myös mahdollisia eri tapoja energiankäytön tehostukselle. Voimalaitoksen höyrykuorma on kuivauskoneiden kulutuksesta riippuen ajoittain voimakkaasti vaihtelevaa. Höyrykuorman vaihtelu aiheuttaa ongelmia voimalaitoksen tuotannolle. Työssä pohditaan höyrykuorman tasausmahdollisuutta muun muassa höyryakun avulla. UPM-Pellos Plywood Mills is the largest plywood producing unit in Europe measured by productivity. The production unit includes three different plywood mills. Veneer drying process is very significant energy consumer. Energy consumption at Pellosniemi is taken care by power plant of Järvi-Suomen Voima. Noticeable amount of secondary energy is recovered from veneer drying machines exhaust air and condensate. Recovered secondary energy is mostly used at the log heating pool. The aim is to use only secondary energy at the pool. Primary steam energy is although needed, when the factories are stopped for maintenance work. This Master's thesis studies briefly plywood manufacturing at Pellosniemi. Research work is concentrated to energy flows between the plywood factories, the power plant and the log heating system. One meaning of this work is to find out unused energy potential from energy systems. Also improvements to secondary energy usage are studied. Power plant steam load fluctuates, because the veneer drying machines steamconsumption changes. Varying steam load causes problems to the production of the power plant. This work studies possibility to balance steam load fluctuation for example with a steam accumulator.

Country
Finland
Keywords

viilun kuivaus, scrubber, steam accumulator, plywood factory, lämmöntalteenotto, balancing steam load, log heating, höyryakku, vaneritehdas, veneer drying, heat recovery, skrubberi, vanerin tuotanto, tukkien haudonta, secondary energy, höyrykuorman tasaus, sekundäärienergia

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