Browsing Master Theses & Projects by Subject "Efficiency"
Now showing items 1-16 of 16
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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 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 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 ... -
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 novel proton exchange membrane fuel cell and battery integrated system
(2023-08-01)In this thesis study, a PEM fuel cell and battery integrated system is developed. The performance assessments of the PEM fuel cell stack are performed through the polarization curve, energy efficiency, exergy efficiency, ... -
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 integrated energy systems with carbon capturing and chemical looping units for hydrogen, methane and methanol production
(2023-11-01)This study investigates three multigeneration systems designed for hydrogen generation through chemical looping, incorporating an amine-based carbon dioxide capture subsystem. These systems consist of a solar tower heating ... -
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. ... -
Thermodynamic performance evaluation and experimental study of a Marnoch Heat Engine
(2009-10-01)The Marnoch Heat Engine (MHE) is a recently patented type of new heat engine that produces electricity from lower temperature heat sources. The MHE utilizes lower temperature differences to generate electricity than any ...