Royal Dutch Shell, plc (Shell, or RDS) is the largest integrated company in the Oil and Gas sector, in terms of assets. It operates globally, with regard to the geography in which it has interests, and integrates the entire value chain into its business model. With more than a c…
"133" Result
Sort By:
A smart pitch control strategy for a variable speed doubly fed wind generation system is presented in this thesis. A complete dynamic model of DFIG system is developed. The model consists of the generator, wind turbine, aerodynamic and the converter system. The strategy proposed…
Capital investment reduction, exergetic efficiency improvement and material compatibility issues have been identified as the primary techno-economic challenges associated, with the near-term development and deployment of thermal energy storage (TES) in commercial-scale concentra…
Use of solar photovoltaic (PV) and other renewable sources to meet rising electricity demand by a growing world population has gained traction in many countries in recent years. In rural Sub-Saharan Africa, where 86 percent of the populace has no access to electricity, solar ene…
Peer victimization and bullying are a widespread problem among children, which can lead to mental, behavioral and physical adjustment problems. Due to these excessive costs, much attention has been directed at identifying and examining risk factors for engaging in bullying behav…
To increase the deployment of photovoltaic (PV) systems, a higher level of performance for PV modules should be sought. Soiling, or dust accumulation on the PV modules, is one of the conditions that negatively affect the performance of the PV modules by reducing the light incide…
Some of the main energy issues in developing countries are high dependence on non-renewable energy sources, low energy efficiency levels and as a result of this high amount of CO2 emissions. Besides, a common problem of many countries including developing countries is economic i…
Through land use and biomass utilization, humans are dominant forces in the planetary biosphere and carbon and nitrogen cycles. Economic subsidies and policy mandates for producing biomass-sourced fuels and electricity could increase further the human appropriation of planetary …
The direct energy conversion between heat and electricity based on thermoelectric effects is a topic of long-standing interest in condensed matter materials science. Experimental and theoretical investigations in order to understand the mechanisms involved and to improve the mat…
This dissertation studies two important problems in the field of biomass supply chain network. In the first part of the dissertation, we study the impact of different carbon regulatory policies such as carbon cap, carbon tax, carbon cap-and-trade and carbon offsetmechanism on th…
This study examines the impact of the partnership synergy and inter-organizational cooperation between government (federal, state, local), public agencies, private companies and local on successful communities commercialization of renewable energy (RE) technologies. The study pr…
This thesis presents fabrication and characterization of a small scale photo-electro-chemical (PEC) solar cell. The cell consists of a p-type silicon cathode with an etched micro-cavity that houses the zinc chloride electrolyte solution, and the cavity is covered by a sheet of z…
The ever-increasing penetration of variable wind energy in power systems affects the hourly dispatch of thermal power generation in electricity markets. The coordination of wind power generation units with pumped-storage hydro (PS) generation could relieve the variability of win…
Scope and Method of Study: Most developing countries, including Iraq, have very poor wind data. Existing wind speed measurements of poor quality may therefore be a poor guide to where to look for the best wind resources. The main focus of this study is to examine how effectively…
Turkey is located between 36 and 42 N latitudes, meaning it is close to axis of the equator. Therefore, Turkey is very rich in terms of the potential of renewable energy resources, although an important part of this potential is not active yet. The share of renewable energy sour…
With the evolution of energy and power systems, the emerging Smart Grid (SG) is mainly featured by distributed renewable energy generations, demand-response control and huge amount of heterogeneous data sources. Widely distributed synchrophasor sensors, such as phasor measuremen…
Due to the increasing awareness of the dwindling fossil fuel resources and environmental issues, biofuel became an alternative renewable fuel to meet the steady increase of energy consumption and environmental demands. This work was designed to produce biofuel free from glycerol…
In this thesis, a flywheel energy storage system (FESS) is proposed for the isolated wind-hydrogen-diesel hybrid power system in Ramea, Newfoundland, Canada. Sizing and control of the flywheel energy storage for Ramea wind-hydrogen-diesel hybrid power system is presented. At pre…
Recently interest in photovoltaic (PV) power generation systems is increasing rapidly and the installation of large PV systems or large groups of PV systems that are interconnected with the utility grid is accelerating despite their high cost and low efficiency due to environmen…