SINTEF search

Sprayed concrete in combination with rock bolts is successfully being used for permanent rock support in tunnels. The main shortcoming is that sprayed concrete alone is unable to function as the permanent waterproofing with strict requirements on a dry interior tunnel surface. Final linings with...

Sprayed concrete in combination with rock bolts has successfully been used for permanent rock support in tunnels for decades. The main shortcoming is that sprayed concrete alone is unable to function as permanent waterproofing in tunnels that requires a dry interior tunnel surface. Therefore, the...

In order to have a sustainable disassembly process, a successful decision-making based on reliable and up-to-date information should be made while taking into consideration sustainability indicators. In this context, The aim of this paper is to introduce a decision support system based on knowledge...

This paper will investigate the future power demands in seaports from the increased electrification of ships, where the port of Oslo is used as a case study. It will be explored how the power capacity can be improved by including an energy storage system (ESS). Similar problems have been addressed...

The dry ice sublimation process of CO₂ is a unique technique in which temperature ranges below the triple point of −56 °C can be achieved in a CO₂ refrigeration system. However, during the evaporation process of the actual refrigeration system, the dry-ice blockage maybe happens in the evaporator...

This work compares the transient behaviors of the flue gas sides of large-scale bubbling and circulating fluidized bed (BFB and CFB, respectively) boilers. For this purpose, a dynamic model of the in-furnace side of fluidized bed combustors presented and validated by the authors in a former work is...

Car tire rubber constitutes one of the largest fractions of microplastics emissions to the environment. The two main emission sources are tire wear particles (TWPs) formed through abrasion during driving and runoff of crumb rubber (CR) granulate produced from end-of-life tires that is used as infill...

This article proposes and demonstrates a new classification system of fish population level effects of hydropeaking operations in rivers. The classification of impacts is developed along two axes; first, the hydromorphological effect axis assesses the ecohydraulic alterations in rivers introduced by...

As the end-users increasingly can provide fexibility to the power system, it is important to consider how this fexibility can be activated as a resource for the grid. Electricity network tarifs is one option that can be used to activate this fexibility. Therefore, by designing efcient grid tarifs...

A stochastic programming model for a price-taking, profit-maximizing hydropower producer participating in the Nordic day-ahead and balancing market is developed and evaluated by backtesting over 200 historical days. We find that the producer may gain 0.07% by coordinating its trades in the day-ahead...

På oppdrag fra Nasjonal kompetansetjeneste for arbeidsrettet rehabilitering, har vi gjennomført en evaluering av AiR UNG, et døgnbasert arbeidsrettet rehabiliteringstilbud (ARR) rettet mot unge voksne i alderen 18 til 30 år. Målet med forskningsprosjektet har vært å frembringe ny innsikt som kan...