SINTEF search

Transmission active power losses can influence the distribution of power flows in the transmission grid which consequently alter the generation dispatch and scheduling through the power system. This can especially affect the exploitation of large scale renewable energy sources (RES) since they are...

The objective of this paper is to present the current status and possibilities of microgrid in Nepal. There are many possibilities of microgrid implementation, interconnecting micro hydro power plants (MHPs). Hybrid microgrids could also be formed interconnecting MHPs with wind turbines or...

In the Enabling Low-Emission LNG Systems project, SINTEF Energy Research and NTNU have since 2009 been developing knowledge and tools with the aim to enable environmental safe, cost-effective, and energy efficient LNG processes. The project has employed a multilevel approach, where studies of...

The output voltage references in grid connected Voltage Source Converters must be limited according to the available dc voltage to avoid over-modulation and windup of the current controllers. This may be especially critical for Active Power Filters (APFs), since uncontrolled over-modulation can...

In Norway there is an increased interest in utilizing photovoltaic generation of electricity (PV) in building installations. As many parts of the LV distribution system in Norway are rather weak, large influx of PV might introduce both voltage quality problems as well as feeder overloads. As the...

Various appealing expedients aimed at enhancing the energy efficiency of transcritical CO₂ (R744) supermarket refrigerating systems have been recently developed. The concurrent adoption of these could lead such hydrofluorocarbon (HFC)-free technologies to become standard even in the South of Europe...

...he CO₂ ejectors are recently often used as the main expansion device in the modern refrigeration cycles. On the other hand, according to the newest literature the implementation the ejectors into supercritical CO₂ power cycles increase its performance. The recent studies showed that in case of the...

Visible signs of climate change call for urgent actions on food retail industry, since such a sector is characterized by an abundant carbon footprint. Being CO₂ (or R744) recognised across the world as the most promising working fluid for supermarket applications, commercial transcritical R...