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Now showing items 31-40 of 120
Effect of diameter ratios on the flow-sound interaction of the straight circular finned cylinders
(2020-01-01)
Finned tubes that are widely used in heat exchangers could be susceptible to the flow-excited acoustic resonance that generates intense pressure fluctuations, which may lead to premature fatigue failure of the tubes. This ...
Design and evaluation of solar and geothermal energy systems integrated with Cu-Cl cycle
(2020-09-01)
This thesis study proposes solar and geothermal based three multigeneration systems. System 1 consists of a bifacial photovoltaic (BiPV) plant, multi-effect distillation (MED) desalination unit and, proton exchange membrane ...
Design and development of a universal gripper mechanism and development of an omni-directional unmanned aerial vehicle for autonomous perching
(2020-04-01)
A novel omni-directional multi-rotor prototype with an attached gripper mechanism named the OmniRaptor is presented with the capability of landing on inclined members in a controlled, stable manner to perform construction ...
Analysis, development, and control of multi-degree-of-freedom passive haptic devices
(2020-08-01)
Stability and transparency are key design requirements in haptic devices. Replacing conventional electric motors with passive actuators such as brakes or dampers can improve both stability and transparency as passive ...
Proposing effective coordinate search methods for solving large-scale expensive black-box optimization problems
(2020-08-01)
In engineering and science, optimization plays a vital role in many real-world applications. In this work, several novel optimization algorithms based on Coordinate Search (CS) algorithm are proposed. CS is a gradient-free ...
Design, development and experimental validation of a lab-scale system for rapid rotational molding of functionally graded integral-skin cellular polyethylene composites
(2020-03-01)
An existing lab-scale experimental setup system, originally developed for a patented Rapid Rotational Foam Molding (RRFM) process, was re-designed, built, and its functionality was successfully experimentally verified. The ...
Development of eco-driving control system for connected and automated hybrid electric vehicles
(2020-04-01)
Hybrid electric vehicles (HEVs) were designed as a potential solution to the ever-increasing global problems of the energy crisis and global warming through flexibly utilizing both fuel and electrical energy. Besides, the ...
A study of a piezoelectric energy harvesting system using magnetorheological fluids
(2020-08-01)
This thesis reports the study of a piezoelectric energy harvesting system using a thin layer of magnetorheological fluid as a soft impact mechanism to enhance the frequency of the energy generator. Currently, the major ...
Probabilistic assessment of the impact of integrating large-scale high-power fast charging stations on the power quality in the electric power distribution systems
(2020-03-01)
The work presented in this thesis assesses the impacts of integrating large-scale high-power fast charging stations on the electric power quality by studying different power quality phenomena such as low-order and high-order ...
Optimized multi-superframe scheduling for clustered wireless sensor networks
(2020-04-01)
Since the power source for wireless sensor networks (WSN) is mainly from batteries, prolonging network life is an important requirement of the network. Hence, clustering algorithms are employed to decrease the number of ...