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Dive into the research topics where Geir Skjevrak is active.

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Featured researches published by Geir Skjevrak.


ieee pes asia-pacific power and energy engineering conference | 2012

Pelletizing and Combustion Behaviors of Wood Waste with Additives Mixing

Geir Skjevrak; Liang Wang; Øyvind Skreiberg; Michael Becidan

Pelletizing and combustion behaviors of wood waste with and without additive addition were investigated in this study. It was found that the wood waste pellets have a high potential for slag formation during combustion and can cause operational problems. With additives addition, no significant changes were observed regarding mechanical properties of the wood waste pellets. Sewage sludge addition was found to have positive effects on NOx and CO emissions during combustion. Both sewage sludge and marble sludge addition have evident influence on slag formation during combustion. Sewage sludge addition reduced the formed slag amount and sizes, and therefore improved the boiler operation. Marble sludge eliminated the slag formation during the wood waste pellets combustion.


Energy Procedia | 2012

A Critical Review on Additives to Reduce Ash Related Operation Problems in Biomass Combustion Applications

Liang Wang; Johan E. Hustad; Øyvind Skreiberg; Geir Skjevrak; Morten Grønli


Energy Policy | 2010

Norwegian households' perception of wood pellet stove compared to air-to-air heat pump and electric heating.

Bertha Maya Sopha; Christian A. Klöckner; Geir Skjevrak; Edgar G. Hertwich


Fuel Processing Technology | 2012

Sintering characteristics of sewage sludge ashes at elevated temperatures

Liang Wang; Geir Skjevrak; Johan E. Hustad; Morten Grønli


Biomass & Bioenergy | 2013

Economic sustainability for wood pellets production - a comparative study between Finland, Germany, Norway, Sweden and the US

Erik Trømborg; Tapio Ranta; Jörg Schweinle; Birger Solberg; Geir Skjevrak; Douglas G. Tiffany


Energy & Fuels | 2014

Investigation of Biomass Ash Sintering Characteristics and the Effect of Additives

Liang Wang; Geir Skjevrak; Johan E. Hustad; Øyvind Skreiberg


Fuel Processing Technology | 2011

The influence of storage and drying methods for Scots pine raw material on mechanical pellet properties and production parameters

Tore Filbakk; Geir Skjevrak; Olav Høibø; Janka Dibdiakova; Raida Jirjis


Energy & Fuels | 2011

Effects of Sewage Sludge and Marble Sludge Addition on Slag Characteristics during Wood Waste Pellets Combustion

Liang Wang; Geir Skjevrak; Johan E. Hustad; Morten Grønli


Energy Procedia | 2012

Effects of additives on barley straw and husk ashes sintering characteristics

Liang Wang; Geir Skjevrak; Johan E. Hustad; Morten Grønli; Øyvind Skreiberg


Archive | 2010

Compression rheology and physical quality of wood pellets pre-handled with four different conditions

Carlos Salas-Bringas; Tore Filbakk; Geir Skjevrak; Odd-Ivar Lekang; Olav Høibø; Reidar Barfod Schüller

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Johan E. Hustad

Norwegian University of Science and Technology

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Morten Grønli

Norwegian University of Science and Technology

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Olav Høibø

Norwegian University of Life Sciences

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Tore Filbakk

Norwegian Forest and Landscape Institute

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Carlos Salas-Bringas

Norwegian University of Life Sciences

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Janka Dibdiakova

Norwegian Forest and Landscape Institute

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Odd-Ivar Lekang

Norwegian University of Life Sciences

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