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Bidding of flexible reservoir hydropower in day-ahead (spot) auctions needs to be done under uncertainty of electricity prices and inflow to reservoirs. The presence of reservoirs also means that the short-term problem of determining bids for the next 12–36 hours is a part of a long term problem in...

The aim of the study was to identify driving variables of energy use in a low energy office building by integrating building energy management system (BEMS) and energy use data. To take a further step towards zero emission buildings, it is necessary to identify what contributes the most to building...

This study focused on the bouncing of sub-millimetric droplets (below 0.7 mm) of three different fluids, distilled water, technical ethanol and 1-propanol on a deep liquid pool of the same fluids. Four different flow regimes including low-energy-collision coalescence, bouncing, high-energy-collision...

It has been shown that super-chilling can increase the shelf life of fish and meat products without the reduction in quality encountered with normal freezing. The shelf Life and quality achieved depend on the fraction of water frozen and how it is preserved in the product. In this paper, we report...

With the introduction of carbon capture and storage (CCS) as a means to reduce carbon emissions, a need has arisen for accurate and efficient simulation tools. In this work, we propose a method for dynamic simulations of carbon dioxide using the Span–Wagner reference equation of state. The...

Transient and harmonic coupling effects between parallel overhead lines are normally modeled via frequency-dependent traveling-wave-type transmission-line models. Several electromagnetic transient programs rely on a line model based on a constant transformation matrix and modes (FD-line). These line...

Based on computer simulations of a simplified radial 132, 66 and 22 kV system including a 5 MVA hydro power unit, it is concluded that the assessment of the unit's fault-ridethrough (FRT) capability should be based not only on a voltage magnitude profile, but also on the change in the voltage phase...

Salmon fillets were superchilled in an impingement freezer using four different treatments, A (heat transfer coefficient 153 W m−2. K−1, air temperature -20°C), B (227 W m−2. K−1, -20°C), C (153 W m−2. K−1, -30°C) and D (227 W m−2. K−1, -30°C), and stored at -1.7oC for 28 days. The influence of...

Biomass gasification has gained significant attention in the last couple of decades for the production of heat, power, and second generation biofuels. Biomass gasification processes are highly complex due to the large number of reactions involved in the overall process as well as the high...