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During manufacturing of heat exchangers, the core material is cladded with a lower-melting point alloy, rolled into thin strips before being formed and finally brazed at an elevated temperature. After a period of natural aging, the final product is operated at two different temperatures depending on...

Carbon anodes, which are consumed in aluminum electrolysis, are fabricated in separate anode plants where coke and pitch are mixed and vibrocompacted to green anode blocks before being baked in anode baking furnaces. The chemical environment inside an anode baking furnace is found to play an...

Nonlinear model predictive control applications have been deployed on two large pilot plants for post combustion CO₂ capture. The control objective is formulated in such a way that the CO₂ capture ratio is controlled at a desired value, while the reboiler duty is formulated as an unreachable maximum...

Conclusions: The CustusX platform facilitates development of new and specialized applications. The toolkit supports the process and makes important extension and injection points available for customization....

A four-stage Gas Switching Reforming for syngas production with integrated CO₂ capture using an iron-based oxygen carrier was investigated in this study. The oxygen carrier was first reduced using dry methane, where high methane conversion rate was achieved producing CO₂ and steam. Following the...

Elasto-plastic fracture toughness tests of a commercially pure iron were performed in air and in hydrogen gas at two different pressures. Some unique characteristics of hydrogen-enhanced cracking were exhibited at both the macroscopic and microscopic length scales, based on the observation of...

Recently, there has been a noticeable increase in the applications of composite mixtures containing molten salt and solid oxide for thermal energy conversion and storage systems. This highlights that thermal conductivity of the composites are central for the purpose of designing and devising...

In the last five years, work on software that interacts with people via typed or spoken natural language, called chatbots, intelligent assistants, social bots, virtual companions, non-human players, and so on, increased dramatically. Chatbots burst into prominence in 2016. Then came a wave of...

Cellular devices support various technical features and services for 2G, 3G, 4G and upcoming 5G networks. For example, these tech- nical features contain physical layer throughput categories, radio protocol information, security algorithm, carrier aggregation bands and type of services such as GSM-R...

Depletion or injection into a reservoir implies stress and strain changes in the reservoir and its surroundings. This may lead to measurable time-shifts for seismic waves propagating in the subsurface. We have measured multi-directional ultrasonic P-wave velocity changes for three different field...