Browsing by Author "ff6e49b3-6c07-4e93-95fa-7c8cbf76e900"
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Application of nanoparticles in biofuels: an overview
Sekoai, Patrick T.; Ouma, Cecil Naphtaly Moro; Du Preez, Stephanus Petrus; Modisha, Phillimon; Engelbrecht, Nicolaas; Bessarabov, Dmitri G. (Elsevier, 2019)Biofuels are fast advancing as alternative sources of renewable energy due to their non-polluting features and cost-competitiveness in comparison to fossil fuels. However, in order to fast-track their development, focus ... -
Carbon dioxide methanation in a catalytic microchannel reactor
Engelbrecht, Nicolaas (North-West University (South Africa) , Potchefstroom Campus, 2017)The work reported in this dissertation demonstrated the practicality of a catalytic microchannel reactor for CO2 methanation implemented via the Sabatier reaction for potential power-to-gas applications. A combined ... -
A highly efficient autothermal microchannel reactor for ammonia decomposition: analysis of hydrogen production in transient and steady-state regimes
Engelbrecht, Nicolaas; Chiuta, Steven; Bessarabov, Dmitri G. (Elsevier, 2018)The experimental evaluation of an autothermal microchannel reactor for H2 production from NH3 decomposition is described. The reactor design incorporates an autothermal approach, with added NH3 oxidation, for coupled heat ... -
Steady-state and transient modelling of a microchannel reactor for coupled ammonia decomposition and oxidation
Schumacher, Kevin; Engelbrecht, Nicolaas; Everson, Raymond C.; Bessarabov, Dmitri G.; Friedl, Markus (Elsevier, 2019)A computational fluid dynamic (CFD) model was developed to describe the transient and steady-state behavior of NH3 decomposition in an experimental autothermal microchannel reactor. The effects of NH3 decomposition and NH3 ... -
Techn-economic assessment of power-to-methane and power-to-syngas business models for sustainable carbon dioxide utilization in coal-to-liquid facilities
Chiuta, Steven; Engelbrecht, Nicolaas; Human, Gerhard; Bessarabov, Dmitri G. (Elsevier Sci Ltd, 2016)The work reported in this paper aimed to evaluate and assess the technical and economic prospects of implementing a renewable-energy-based technology namely power-to-gas (PtG) for sustainable utilization of CO2 emissions ...