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Now showing items 301-310 of 384
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 ...
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 ...
Investigation of new phase change material based thermal management systems for Li-ion batteries
(2017-01-01)
In this thesis, a battery pack consisting of three A123 20Ah cells connected in series is tested with various cooling methods at different discharge rates. Four different coolant inlet temperatures are selected for the ...
Robust controller design for active trailer steering systems of articulated vehicles using multi-objective optimization
(2019-08-01)
This thesis presents and evaluates an approach to the robust controller design for active trailer steering (ATS) systems to increase the safety of articulated vehicles. By applying a multi-objective evolutionary algorithm ...
Passive damping mechanism of Herschel-Quincke tubes for pressure pulsations in piping systems
(2018-12-01)
The acoustic pressure pulsations in industrial piping systems can induce fluctuating loads on inline equipment which may cause fatigue failure and in severe cases, initiate a phenomenon known as acoustic resonance. Passive ...
A monitoring framework for side-channel information leaks
(2019-04-01)
Security and privacy in computer systems is becoming an ever important field of study as the information available on these systems is of ever increasing value. The state of research on direct security attacks to computer ...
Integrated topology optimization design and process planning for additive manufacturing
(2019-08-01)
Industry 4.0 demands that the systems and processes in today’s product design and manufacturing not just be automated, but to be robust and containing many feedback mechanisms which enables it to be self-correcting. The ...
Experimental investigation of photocatalytic hydrogen production with boron-doped TiO2 and multi-walled carbon nanotubes-TiO2
(2019-04-01)
This thesis investigates photocatalytic hydrogen production by performing an experimental study using a small-scale photochemical cell which splits water to hydrogen and oxygen by UV light irradiated boron-doped TiO2 and ...
Controlling the Vienna rectifier using a simplified space vector pulse width modulation technique
(2019-11-01)
In this thesis, a simplified Space-Vector Pulse-Width-Modulation (SVPWM) technique for the Vienna rectifier is introduced to reduce the computational burden, the switching losses and the Total-Harmonic-Distortion (THD). ...
Damping acoustic pressure pulsations in pipelines using Helmholtz resonators
(2019-05-01)
In industrial piping systems, centrifugal and reciprocating turbomachinery generate acoustic pressure pulsations, which propagate into the pipeline and interact with piping components, potentially causing vibrations, ...