Fundamental studies have been carried out experimentally and theoretically on the magnesiothermic reduction of silica with different Mg/SiO2 molar ratios (1–4) in the temperature range of 1073 to 1373 K with different reaction times (10–240 min). Due to the kinetic barriers occurring in...
Manual removal of burrs on castings introduces health, safety, and environmental concerns. Automated removal of highly variable casting burrs could improve safety, but requires a solution based on robots, smart sensors, and advanced algorithms to tackle the problem in a flexible and cost-effective...
The increasing demand for sustainable food can partly be solved by the production of aquatic species in recirculating aquaculture systems (RAS). In the Norwegian aquaculture industry, Atlantic salmon (Salmo salar) is often hatched and grown in freshwater RAS until the fish develops into smolt, by...
There has been an increase in the use of Recirculating Aquaculture Systems (RAS) to produce Atlantic salmon smolts (Salmo salar). However, concerns have been raised regarding the environmental pollution associated with aquaculture wastewater. RAS water contains substantial amounts of inorganic...
As wild-caught fish become scarce, feed ingredients for farming fish, such as salmon, are increasingly sourced from agricultural plants that depend on mineral fertilizers. Since these fish are naturally carnivorous, they have difficulty digesting the phosphorus in plant-based feed. So additional...
Introduction: Sustainable growth of the salmon aquaculture industry is highly dependent on the availability of new feed resources as well as improved management and utilization of waste streams from production. Polychaetes are capable of recapturing and recycling valuable biomolecules contained in...
Industry programs have been a method of lifting the competence of especially Small and Medium Sized Enterprises (SMEs) that otherwise would not be interested or could not afford such efforts. In this paper we present a case study of four Norwegian SMEs that participated in a Lean Production based...
We investigate the effect of hydrogen enrichment on the non-linear response and saturation of premixed methane/hydrogen flames submitted to acoustic forcing. The thermal power is kept fixed to preserve the nozzle velocity whilst increasing the flame speed through hydrogen enrichment. The flame...
Twenty years of careful recordings of SF6 inventories and emissions from a large switch-gear population show that by implementing appropriate measures, annual emission rates as low as 0.2% can be achieved. Key words: sulfur hexafluoride, emissions, high-voltage switchgear, global warming...
Hydrogen could gradually replace fossil fuels, mitigating the human impact on the environment. However, equipment exposed to hydrogen is subjected to damaging effects due to H2 absorption and permeation through metals. Hence, inspection activities are necessary to preserve the physical integrity of...
Flue gas recirculation (FGR) is a method used in several industries to control emissions and process conditions, such as NOx reduction and temperature levels, and increase the CO2 concentration in the off-gas, to be better suited for methods of carbon capture. In this study, the influence of FGR...
This work proposes a Markov Decision Process (MDP) model for identifying windows of opportunities to perform preventive maintenance for multi-unit parallel systems subject to a varying demand. The main contribution lies in proposing: (i) a reward function that does not depend on maintenance costs...
Aluminum (Al) white dross is classified as hazardous waste and originates from the primary production of Al as a result of molten metal oxidation at an industrial scale. As the produced dross reduces the annual metallic Al production by up to 10%, finding a way to reduce the dross formation has...