Verden befinner seg i dag i en rask og omveltende teknologisk utvikling, der alle næringer blir påvirket av digitalisering som radikalt endrer måten å jobbe, samhandle og kommunisere på. Over lengre tid har byggebransjen vært en bransje der innovasjon og nytenkning ikke har vært et satsningsområde. Synkende effektivitet og økt konkurranse mellom aktører har medført at en endring av arbeidsmetode er ...

Tilsetting av fiber i betong har vært noe som lenge har vært benyttet for å tilføre strekkegneskaper i betongen og hindre blant annet riss i betongen. Det har i de siste årene vært et ønske om å undersøke om det er forsvarlig å bruke fiber betong i bærende konstruksjoner, og ikke kun i fundamenter og sprøytebetong som fiber har normalt sett vært benyttet til. Etter publiseringen av NB.38 i 2020 har ...

Ice accretion on rotary-wing unmanned aerial vehicles (RWUAVs) needs to be studied separately from the fixed-wing UAVs because of the additional flow complexities induced by the propeller rotation. The aerodynamics of rotatory wings are extremely challenging compared to the fixed-wing configuration. Atmospheric icing can be considered a hazard that can plague the operation of UAVs, especially in the ...

Wind power is an excellent source of renewable energy in areas with sufficient wind resources. Usually, the best locations for wind turbines are on the tops of hills and ridges, where there are lower temperatures [1]. Cold temperatures are responsible for novel challenges [2, 3]. Due to cold climatic conditions, turbine blades are subjected to icing [4]. A number of methods have been proposed and ...

To avoid the worst impacts of climate change a rapid green energy transition is required where traditional fossil fuels are replaced by low-carbon alternatives. One attractive route to emissions reduction is blue hydrogen, which has lower CO₂ emissions that traditional hydrogen production. For hydrocarbon exporters, increased blue hydrocarbon production can be achieved in two main ways: ...

Inverter-based resources (IBRs), such as solar and wind power are gaining popularity because of their increasing acceptance, environmental benefits and decreasing costs. However, their integration into power systems can lead to significant impacts on system inertia and frequency stability, which are crucial for maintaining the reliability of the power grid. In traditional power systems, the synchronous ...

In recent years, the environmental pollutions at the Three Gorges Dam have become an increasingly concerning issue of the Chinese government. One of the most significant environmental problems is the carbon emissions from the lockage operations at the two ship locks of the Three Gorges Dam. Currently, due to the large amount of vessels passing through the dam, there is always a long queue of vessels ...