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Now showing items 11-20 of 24
Modeling and multi-objective optimization of a photovoltaic-thermal based multigeneration system
(2015-01-01)
In this thesis, a novel multi generation integrated system is introduced, analyzed and optimized. It consists of GaAs based PV (Photo-Voltaic) arrays connected in series. Light is being concentrated on those arrays using ...
Investigation of mechanical heat pump systems for heat upgrading applications
(2016-04-01)
Three high temperature heat pump systems based on vapor compression cycles are introduced and examined. Four fluids (water, cyclohexane, biphenyl and mercury) are selected and analysed thermodynamically as prospective ...
Thermodynamic anaysis of an integrated photovoltaic system for hydrogen and methanol production
(2012-06-01)
A solar based integrated system for hydrogen and methanol production is investigated. Energy and exergy analyses of a hydrogen production plant, thermodynamic assessment of methanol synthesis plant, and exergy analysis of ...
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 ...
Investigation of a hydrogen production process through aluminum and water chemical reaction
(2019-12-01)
This thesis reported a novel hydrogen production experimental set up, which utilized the chemical reaction between aluminum and water to produce hydrogen. The constructed experimental setup had an aluminum powder spraying ...
Development of a new integrated sustainability assessment model for energy systems
(2017-07-01)
This thesis presents a novel and comprehensive sustainability assessment model for energy systems. The model features an integrated approach and encompasses various multi-disciplinary areas of study, which influence energy ...
Analysis, assessment and optimization of biomass mixed heavy-oil driven integrated gasification combined cycle for multigeneration
(2017-11-01)
There has been increasing interest in employing Integrated Gasification Combined Cycles (IGCC) using various biomasses and low-rank coals for producing multiple outputs. The most of the existing IGCC plants do not conserve ...
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 ...
Design, analysis and optimization of novel photo electrochemical hydrogen production systems
(2013-04-01)
Hydrogen is a green-energy carrier with a high heat of combustion. If obtained from renewable sources, it could be the ultimate and environmentally benign solution for the future energy requirements. This thesis presents ...
Experimental and theoretical investigations of magnesium-chlorine cycle and its integrated systems
(2015-01-01)
This study aims to investigate the feasibility of the Mg-Cl hybrid thermochemical cycle and to develop a more cost and energy effective cycle. There are five key elements of this study: (i) modeling and simulation of the ...