Browsing by Subject "Efficiency"
Now showing items 1-20 of 24
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Analysis and assessment of integrated waste-to-energy systems based on plastic wastes for multigeneration
(2022-04-01)This thesis proposes three wastes to energy multigeneration systems that are based on plastic wastes. The three systems are coupled with renewable energy resources like solar energy, geothermal energy, and wind turbine ... -
Analysis and optimization of fuel cell based integrated powering systems for clean rail applications
(2019-08-01)In this thesis, proposals of novel integrated fuel cell powering systems for cleaner railway applications are presented and analyzed thermodynamically. Both energy and exergy analyses are conducted on these systems for ... -
Design and analysis of multiple input non-isolated DC-DC converter for fast charging station of electric vehicles
(2022-08-01)In the last decade, multi-input DC-DC converters have been studied in various research areas related to plug-in vehicles, hybrid electric vehicles, and renewable energy applications. They have several advantages over ... -
Development and analysis of alternative thermochemical cycles for hydrogen production
(2021-12-01)Production of carbon-free fuels as alternatives for fossil fuels is a promising approach for controlling climate change and global warming. Hydrogen is considered as the key energy carrier of the future when it is produced ... -
Development and analysis of new integrated energy systems for sustainable buildings.
(2014-12-01)Excessive consumption of fossil fuels in the residential sector and their associated negative environmental impacts bring a significant challenge to engineers within research and industrial communities throughout the ... -
Development and investigation of alkaline electrolyte based direct ammonia fuel cells
(2018-01-01)In the present thesis study, alkaline electrolyte based direct ammonia fuel cells are developed, and their performances are evaluated through various parameters and efficiencies, such as open circuit voltages, polarization ... -
Development and investigation of an ammonia synthesis reactor
(2018-08-01)Ammonia production has gained increasing attention in the last decade due to its importance as a feedstock and an energy carrier. In the present thesis study, two novel ammonia production systems are presented. The first ... -
Development and investigation of integrated solar systems for hydrogen and methanol production
(2018-04-01)Implications of climate change, in particular the negative effects of greenhouse gas (GHG) emissions resulting from fossil fuel combustion, as well as the finite nature of fossil fuels necessitate the implementation of ... -
Development of a new hybrid photochemical/electrocatalytic water splitting reactor for hydrogen production: design, analysis and experiments
(2012-01-01)Solar-driven water splitting combines several attractive features for sustainable energy utilization. The conversion of solar energy to a type of storable energy has crucial importance. An alternative method to hydrogen ... -
Development of novel energy systems for LNG locomotives
(2015-04-01)The use of diesel in the railway sector brings challenges to the engineers to meet the current emissions standards set by governments. This thesis addresses potential solutions to overcome the emissions problems in the ... -
Development of thermodynamic cycles for sodium-cooled-fast reactors.
(2013-12-01)Currently, one engineering challenge is designing Generation IV (GEN-IV) Nuclear Power Plants (NPPs) with significantly higher thermal efficiencies compared to current NPPs, and to match, or at least to be close to, the ... -
Energy and exergy analyses of biomass cogeneration systems
(2012-08-01)Biomass cogeneration systems can generate power and process heat simultaneously from a single energy resource efficiently. In this thesis, three biomass cogeneration systems are examined. Parametric analysis of back pressure ... -
Energy, exergy and exergoeconomic analyses of gas-turbine based systems
(2011-12-01)Gas turbines are the primary technology used for the purpose of power generation nearly everywhere. In this thesis, the Makkah Power Plant, running on a Brayton cycle, is considered for analysis. The peak demand for electric ... -
Enhancing the effectiveness of Stirling engine regenerators
(2019-04-01)A discrete heat transfer model is developed to determine which parameters influence the effectiveness of Stirling engine regenerators and quantify how they influence it. It is revealed that the regenerator thermal mass ... -
Experimental investigation of an integrated solar driven wastewater treatment system for trigeneration applications
(2018-08-01)Hydrogen is a promising alternative as an energy carrier (and carbon-free fuel) to meet the global power demand. Hydrogen production systems can efficiently harvest energy from renewable sources. Even though photo-electrochemical ... -
Experimental investigation of scroll based organic Rankine systems
(2011-04-01)In this thesis, an experimental research is conducted on scroll-based Organic Rankine Cycle (ORC) focusing on the expansion process. An important feature of the ORC is the ability to utilize low or moderate temperature ... -
Influence of sinusoidal motion on Stirling engines
(2018-12-01)Stirling engines have a high potential to produce renewable energy due to their ability to use a wide range of sustainable heat sources and their high theoretical efficiencies. They have not yet achieved widespread use and ... -
Investigation of sustainable hydrogen production from steam biomass gasification
(2010-12-01)Hydrogen is a by-product of the gasification process and it is environmentally friendly with respect to pollution and emission issues when it is derived from a CO2-neutral resource such as biomass. It is an energy carrier ... -
Investigation of thermal management options for robots
(2018-08-01)This thesis research studies the thermal challenges of robots and evaluates the potential thermal management options. In this regard, it aims to develop and analyze various thermal management options for robotic systems. ... -
Modeling and experimental investigation of renewable energy and ammonia-based systems for carbon capturing and useful outputs
(2022-04-01)This thesis work focuses on developing ammonia-based carbon capturing systems that produce useful chemical outputs to offset the energy penalty typically imposed by implementing a carbon capture retrofitting to a power ...