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Performance investigation of various cold thermal energy storages
(2008-07-01)
This study deals with solidification and melting of some typical encapsulated ice thermal energy storage geometries. Using ANSYS GAMBIT and FLUENT 6.0 software, HTF fluid motion past encapsulated water (ice) geometries, ...
Thermodynamic performance assessment of three biomass-based hydrogen production systems
(2010-04-01)
Hydrogen is likely to be an important energy carrier in the future. It can be produced by the steam reforming of natural gas, coal gasification and water electrolysis among other processes. However current processes are ...
Experimental and theoretical investigations of a new integrated solar tower system for photocatalytic hydrogen and power production
(2013-08-01)
Solar energy conversion via photocatalytic hydrogen production from water is an attractive route for the propagation of a hydrogen economy. Increasing the efficiency of such systems to meet the target of 10% is essential ...
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 ...
Experimental investigation and analysis of a new light-based hydrogen production system
(2014-12-01)
Due to the world’s increasing population and the rising standard of living, global energy demand is expected to keep increasing. The limited nature of fossil fuels and their non-homogenous global distribution along with ...
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 ...
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 ...
Energy ans exergy analysis of biomass co-firing in pulverized coal power generation
(2011-04-01)
Biomass co-firing with coal exhibits great potential for large scale utilization of biomass
energy in the near future. In the present work, energy and exergy analyses are carried out
for a co-firing based power generation ...
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 ...
Energy, exergy and cost analyses of nuclear-based hydrogen production via thermochemical water decomposition using a copper-chlorine (Cu-CI) cycle
(2008-04-01)
In this thesis the Copper-Chlorine (Cu-CI) thermochemical cycle and its components as well as operational and environmental conditions are defined, and a comprehensive thermodynamic analysis of a Cu-CI thermochemical cycle, ...