Blar i Institutt for maskin- og marinfag på forfatter "Lümmen, Norbert"
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Biowaste to hydrogen or Fischer-Tropsch fuels by gasification – A Gibbs energy minimisation study for finding carbon capture potential and fossil carbon displacement on the road
Lümmen, Norbert; Røstbø, Erlend Velken (Journal article; Peer reviewed, 2020)To reach its greenhouse gas emission reduction goals, Norway needs a shift away from the use of fossil fuels in the transport sector. The production potential and efficiency of Fischer-Tropsch biofuels and hydrogen from ... -
Comparison of organic Rankine cycle concepts for recovering waste heat in a hybrid powertrain on a fast passenger ferry
Lümmen, Norbert; Nygård, Erlend; Koch, Peter Edgar; Nerheim, Lars Magne (Journal article; Peer reviewed, 2018)The possibilities of recovering waste heat from the exhaust gas and other waste heat sources from a 900 kW fast passenger ferry Diesel engine by means of an organic Rankine cycle (ORC) were investigated. The recovered ... -
Linear Modelling of the Mass Balance and Energy Demand for a Recirculating Aquaculture System
Ayuso Virgili, Gerard; Jafari, Leila; Lande-Sudall, David; Lümmen, Norbert (Peer reviewed; Journal article, 2023)This work seeks to understand the predominant drivers affecting energy demand for a recirculating aquaculture system (RAS) by developing a numerical model in Matlab coupled with Aspen HYSYS and validating against measurement ... -
Supplying hydrogen vehicles and ferries in Western Norway with locally produced hydrogen from municipal solid waste
F. Renkel, Maria; Lümmen, Norbert (Journal article; Peer reviewed, 2018)Gibbs free energy minimization has been used to estimate the hydrogen production potential of air gasification of the wet organic fractions of municipal solid waste available in the Bergen region in Western Norway. The aim ... -
Thermo-economic study of waste heat recovery from condensing steam for hydrogen production by PEM electrolysis
Lümmen, Norbert; Karouach, Assma; Tveitan, Stine (Journal article; Peer reviewed, 2019)The hydrogen production potential and cost from waste heat recovered from condensing steam in a combined heat and power facility has been calculated. Two different concepts for using the recovered energy by an organic ...