Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 298 for “"Energy System"”.
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Integrating Critical Raw Materials into Energy System Optimization Models: Approaches for More Informed Energy System Planning
L'abstract è presente nell'allegato / the abstract is in the attachment
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Increasing renewable energy system value through storage
Intermittent renewable energy sources do not always provide power at times of greatest electricity demand or highest prices. To do so reliably, energy storage is likely required. However, no single energy storage technology is dominant when comparing cost intensities of the energy capacity and …
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Optimal Scheduling Method for Multi-Energy System
In response to the challenge of improving energy production and consumption efficiencies due to environmental problems and energy crisis, multi-energy systems composed of electrical power, natural gas, heating power, cooling power networks and energy storage are attracting more attention and are …
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Biologically inspired transparent material as an energy system
… on buildings play a major role in operational energy consumptionas they define the boundary conditions between the climate outside and the thermalcomfort inside a building. Glass façades are viewed as an uncontrolled load that setsthe operational performance requirements for air-cooling …
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Bio-energy system analysis: Profit, planet, and policy
… for the production of goods, services, and energy. Using biomass leverages the biogenic carbon cycle of biomass, which can lower total greenhouse gas emissions. However, this transition is complex and hindered by the combination of technical, economic, and knowledge barriers. To overcome …
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The hydrodynamics of the water hammer energy system
… variable and unpredictable. Hydropower and tidal energy offer more predictable generation capacity, making them appealing for a resilient transmission system. This is particularly true in the context of decentralised power grids, which harness smaller amounts of energy from a wide range of sources …
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Uncertainty management in prognosis of electric vehicle energy system
… uncertainties that are inherent in the system prognosis procedure, to represent and propagate them, and to manage or shrink uncertainty distribution bounds under long-term and usage-based prognosis for accurate and precise results. Uncertainty is an inherent attribute of prognostic …
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Estimating Cell Capacity for Multi-Cell Electrical Energy System
<p>A Multi-Cell Electrical Energy System is a set of batteries that are connected in series. The series batteries provide the required voltage necessary for the contraption. After using the energy that is provided by the batteries, some cells within the system tend to have a lower voltage than the …
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Advancing Irish energy system modelling to inform residential policy
… has sparked a renewed determination to act. Energy Systems Optimisation Models (ESOMs) help guide energy policymaking to meet climate goals. This thesis uses a newly developed ESOM, TIMES Ireland Model (TIM), to explore Ireland’s decarbonisation pathways. TIM incorporates empirical internal …
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Data driven artificial intelligence techniques in renewable energy system
… is composed of different kinds of distributed energy resources (DER) such as solar panels, wind farms, batteries and power transformers. DERs often come with data interfaces and IoT sensors which generate large amounts of data. Besides monitoring device status, those data can be utilized to …
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Nuclear-renewables energy system for hydrogen and electricity production
… and expensive oil call for a different mix of energy technologies. Nuclear and renewables attract attention because of their ability to produce electricity while cutting carbon emissions. However their output does not match demand. This thesis introduces a nuclear-renewables energy system, that …
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Modeling a distributed energy system for California electricity production through 2050
<p>Recent research shows that combining distributed generation (DG) with renewable resources will reduce fossil fuel dependency and carbon dioxide (C02) emissions. This thesis presents a framework to evaluate the benefits of DG in terms of C02 emission and transmission line losses with respect to …
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Integrated Energy System Modeling For Supporting Energy Systems Planning Under Uncertainty
Energy is an essential input for social and economic development throughout the world. Ensuring sufficient quantity and satisfactory quality in regional energy systems requires the formulation of a model to allocate energy resources and to properly develop renewable energy sources. In addition, the …
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Production of biofuels in a circular cascading bio-based energy system
Anaerobic digestion (AD) systems which incorporate carbon capture, utilization and sequestration technologies may offer a solution to significantly reduce greenhouse gas (GHG) emissions in the heavy duty sectors of transport and industry. However, serious challenges faced by AD hinder its …
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Towards a holistic integration of energy justice and energy system engineering
… from fossil fuel infrastructure to clean energy infrastructure. This transition must also be done equitably and justly to prevent entrenching further injustices to marginalized and vulnerable communities. Current energy planning tools optimize for a singular cost objective which challenges …
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Development of a DFIG wind energy system for grid integration studies
… the rotor, which can be adjusted through control systems with varying wind speed, ensuring more efficient power conversion.The stator windings in a DFIG are directly connected to the grid while the rotor windings are connected to the grid via back to back converters. This allows for independent …
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Energy system transformation : an evaluation of innovation requirements and policy options
… gas recovery methods are spurring debate on energy policy options. An important focus of this debate is the role of innovation in reducing carbon emissions while also maintaining the affordability of energy supplies. The scale of the required transition to a low-carbon energy system is large. …
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Stakeholder value network analysis for the energy system of Saudi Arabia
… the challenge of looking to atomic and renewable energy as options to fill the electricity gap for the upcoming decades. In this thesis, One of the main challenges is that the energy sector is controlled by multiple stakeholders. We address such a challenge through Stakeholder Value Network …
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Investigation of a Fuel Cell Based Total Energy System for Residential Applications
… appliances, and space cooling and thermal energy for space and domestic water heating. Total energy systems (TES) which provide both electricity and thermal energy can meet these needs more effectively than conventional systems because thermal energy rejected during the on-site production …
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