Wind farm flow control (WFFC) is an emerging technology involving coordinated operation of wind turbines within a wind farm to achieve collective goals. To design and evaluate controllers, wind farm flow models are used that capture the key aerodynamics of the system whilst remaining computationally...
Condition monitoring data can be used to assess the health of a power system component but is rarely used to assess the reliability of the power system they are part of. For high-voltage circuit breakers (HVCBs), the susceptibility to various failures can be assessed by examining trip coil current...
A common configuration for transcritical CO2 booster systems in supermarkets involves air conditioning (AC) supplied by cooling a water-glycol circuit. The design capacity of the refrigeration unit must handle all refrigeration loads and the AC load during the hottest summer day, leading to...
The physics and computational prediction of turbulent boundary layer flow over axisymmetric and three-dimensional bodies are examined. Three cases were considered for which extensive experimental results and companion Reynolds-averaged Navier Stokes (RANS) solutions were obtained and/or available in...
Green hydrogen represents a promising solution for renewable energy application and carbon footprint reduction. However, its production through renewable energy powered water electrolysis is hindered by significant cost, arising from repair, maintenance, and economic losses due to unexpected...
Ultrasonic guided waves in pipes propagating in the circumferential direction carry information about the thickness of the pipe wall. This study proposes a method for estimating the pipe wall thickness based on measurements from circumferentially distributed sensors and a set of pre-computed...
As there is an increased demand for monocrystalline silicon based solar cells, there is an increased interest in stronger and more durable fused quartz crucibles used in the Czochralski process. In this study we focused on the uniformity of hydroxyl impurities in these crucibles, and its potential...
Dynamic load conditions induce enhanced mechanical stress on insulation systems, potentially causing degradation over time and compromising the transformer's short-circuit withstand capability. Thermal expansion of the windings, occurring as the transformer is loaded, increases the pressure...
High-density pressboard samples are compressed to a constant dimension in a steel rig, and then subjected to thermal cycling. Clamping pressure and temperature are measured over several days. Temperature measurements are used as input for a simple numerical spring model to recreate the elastic...
Anaerobic digestion (AD), one of the key technologies for achieving the climate-neutral target, is still facing various digestate management issues. The digestate's high organic matter and energy content make it a potential feedstock for further processing into value-added products, i.e., through...