More effective energy production requires a greater penetration of storage technologies. This paper takes looks at and compares the landscape devices. Solutions across four categories storage, namely: mechanical, chemical, electromagnetic thermal are compared on basis energy/power density, specific energy/power, efficiency, lifespan, cycle life, self-discharge rates, capital costs, scale, application, technical maturity as well environmental impact. It’s noted that virtually every technology...

Tracking of reference signals $y_{\mathrm{ref}}(\cdot)$ by the output $y(\cdot)$ linear (as well as a considerably large class nonlinear) single-input, single-output systems is considered. The system assumed to have strict relative degree two with (weakly) stable zero dynamics. control objective tracking error $e=y-y_{\mathrm{ref}}$ and its derivative $\dot{e}$ within prespecified performance funnels, respectively. This achieved so-called funnel controller...

In response to the COVID-19 outbreak, UK Government provided public health advice stay at home from 16 March 2020, followed by instruction (full lockdown) 24 2020. We use data with high temporal resolution utility sensors installed in 280 homes across social housing Cornwall, UK, test for changes domestic electricity, gas and water usage government guidance. Gas increased 20% following home, week before full lockdown, although no difference was seen during lockdown itself. During morning...

It is well accepted nowadays that in synchronous machine design procedures thermal aspects should be weighed equally with electromagnetic issues and considered an iterative manner. Synchronous models are being constantly optimised improved, many areas understood documented. Even so, there a number of model require significant further study analysis. These include accurate operational loss prediction, precise distribution, discretisation level cooling air flow implications. They will analysed...

Assessing and reducing the whole-life carbon emissions (WLCE) of buildings is essential to achieving global climate targets. Although many studies have examined building WLCE, there a lack understanding variability WLCE for large number similar in proximity key influencing factors. We fill these knowledge gaps by quantifying 145 residential properties Cornwall, UK, following methods recommended official standards guidelines using actual electricity consumption recorded sensors, then...

Numbers of Earth Observation (EO) satellites have increased exponentially over the past decade reaching current population 1193 (January 2023). Consequently, EO data volumes mushroomed and processing has migrated to cloud. Whilst attention been given launch in-orbit environmental impacts satellites, footprints overlooked. These issues require urgent centre water energy consumption, high carbon emissions for computer component manufacture, difficulty recycling components. Doing so is...

Whole-life carbon emissions (WLCE) studies are critical in assessing the environmental impact of buildings and promoting sustainable design practices. However, existing methods for estimating WLCE time-consuming data-intensive, limiting their usefulness early building stages. In response to this, this research introduces a novel approach by harnessing various machine learning algorithms predict intensity (normalised floor area) buildings. To evaluate suitability algorithms, we conducted an...

We define the relative degree of time-varying linear systems, show that it coincides with Isidori's and Liberzon/Morse/Sontag's definition if system is understood as a time-invariant nonlinear system, characterize in terms data their derivatives, derive normal form respect to coordinate transformation, finally zero dynamics

The use of dynamical information, which is temporally and spatially explicit, to quantify environmental impacts gaining importance in recent years. Life Cycle Assessment has been applied identify of, for example, wheat production. However, conventional typically limited by its static nature cannot explicitly consider temporal spatial variability matrix-based mathematical structure. To address this limitation, a novel framework that applies spatio-temporal models Inventory introduced. This...

To be competitive against other renewable energy sources, converted from the ocean waves needs to reduce its associated levelised cost of energy. It has been proven that advanced control algorithms can increase power production and device reliability. They act throughout conversion chain, hydrodynamics wave absorption take-off improve yield. The present work highlights development test several biradial turbine which is installed in Mutriku oscillating water column plant. A collection...

The C-GEN is a novel permanent magnet generator aimed at reducing overall system mass in direct drive power takeoff applications. design of requires the combination electromagnetic, structural and thermal models. Models used development tools applicable to both rotary linear generators are described this study. tool verified with experiment results obtained from 15 kW prototype. A genetic optimisation algorithm developed combining analytical model economical issues search for most suitable...

Sensors are an increasingly widespread tool for monitoring utility usage (e.g., electricity) and environmental data temperature). In large-scale projects, it is often impractical sometimes impossible to place sensors at all sites of interest, example due limited sensor numbers or access. We test whether cluster analysis can be used address this problem. create clusters potential using factors that may influence measurements. The provide groups similar each other, differ between groups....

When battery and supercapacitor (SC) Energy Storage Systems (ESSs) coexist in electric vehicles, energy management is imperative to ensure efficient power distribution based on the strengths weaknesses of each ESS. The decoupling highly dynamic demands into components that match nature ESS essential. Discrete Wavelet Transform (DWT) has been widely recommended for this purpose as part real time systems. However, due DWT signal processing, delays frequency can undermine benefits...