Browsing by Author "Tuomivaara, Olli"

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  • Metsäteollisuuden lietteiden kuivaus energiantuotantoon
    (2008) Tuomivaara, Olli
     Insinööritieteiden ja arkkitehtuurin tiedekunta | Bachelor's thesis
  • Pyrolyysiöljy lämmöntuotannossa
    (2010) Tuomivaara, Olli
     School of Engineering | Master's thesis
    Pyrolysis oil can be produced from various biomass sources. Numerous processes have been developed to produce it but all of them are based on thermal pyrolysis of biomass. This master thesis is about pyrolysis oil in heat production. Main objectives of this study were to define technical requirements of pyrolysis oil in heat production and make economic estimates about the competitiveness of pyrolysis oil compared to other heating fuels. In technical study, the main focus was to find out the special requirements for pyrolysis oil in logistics and heating applications. The research methods used in this thesis are literature review, interviews and field tests of pyrolysis oil in Masala heating plant in Kirkkonummi. Plant is owned and operated by Fortum Power and Heat Oy. The main objectives were achieved within this thesis. Technical requirements for generating heat with pyrolysis oil were defined and developed during the thesis work. The ongoing project, in which this master thesis was written, will continue in the fall of 2010. In the economic evaluation, a model was created to estimate the competitiveness of heat generated from pyrolysis oil compared to other heat generation methods. The model was based on an example investment study in which a plant using heavy fuel was converted to use pyrolysis oil.