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Dissertations/Theses - Department of Mechanical Engineering: Recent submissions

Now showing items 41-60 of 367

Effect of physical properties of fine powders on their mixing in a rotating drum

Tapas Barai (Department of Mechanical Engineering (ME), BUET, 2020-02-05)

Mixing of powders is an essential process used in the manufacturing of many industrial products such as pharmaceutical tablets, fertilizer blends, food products, animal/ fish feeds, metal-matrix composites, plastic parts, ...
Numerical study of smoke and fire confinement using air curtains in shopping malls

Shoshe, Md. Arif Mahmud Shuklo (Department of Mechanical Engineering, 2019-11-24)

Fire incidents in densely populated urban areas can rapidly results in a catastrophicmulti-death scenario, in absence of adequate fire-fighting equipment. As smoke generatedduring fire hazards is predominantly responsible ...
Experimental study of specific heat and thermal stability of molten salt eutectics with organic nanoparticles

Salim, Nusrat Jahan (Department of Mechanical Engineering, 2020-08-26)

Concentrating solar power (CSP) plants with Thermal energy storage (TES) system offer a power supply technology equivalent to the conventional power plants. Increasing the storage capacity of TES materials can enhance the ...
Molecular dynamics study of the effect of different aspects of particles on thermal transport properties of nanofluids

Roni, Md. Rakibul Hasan (Department of Mechanical Engineering, 2019-12-21)

Developments in industrial sectors and green environment demand the efficient utilization of energy and its management in greater extents. Typical heat transfer fluids such as ethylene glycol, water, engine oil, etc. are ...
Aerothermal analysis of supersonic flow around an airfoil in transitional rarefied conditions

Salehin, Musfequs (Department of Mechanical Engineering, 2020-01-18)

When the physical length scale of a fluid mechanical system becomes comparable to the molecular mean free path (the average distance traveled by each molecule of gas between successive intermolecular collisions), the system ...
First principles and experimental study on MoS2-BASED nanocomposites for fuel cell application

Hossain, Md. Tanver (Department of Mechanical Engineering, 2019-05-22)

Energy storage via the combination of hydrogen production and fuel cell has been a very active field of research for the last few decades. Nanostructured semiconductor materials are now being utilized for hydrogen production ...
Effect of thermal aging on electromigration failure of a flip-chip SnAgCu solder joint

Ahmed, Md. Tusher (Department of Mechanical Engineering, 2019-07-09)

Lead free solder materials have replaced lead based solder materials nowadays for increased environmental concern. Further miniaturization of electronic solder joints in packages has caused electromigration to dominate ...
Molecular dynamics study on thin film liquid phase change phenomena under ultrafast boundary heating

Alam, Md. Muntasir (Department of Mechanical Engineering, 2019-06-18)

Phase change characteristics of thin film liquid argon subjected to ultrafast boundary heating for different liquid film thicknesses and wettability conditions are the main objectives of the present study. Classical molecular ...
Study of heat pipe heat exchanger for low temperature waste heat recovery application

Hossen, Sakil (Department of Mechanical Engineering, 2019-01-26)

Due to environmental concern and high price of fuel, waste heat recovery has become a very crucial issue for the industrial and commercial energy users. As a large portion of this waste heat comes out as a low-grade energy, ...
Study of electro-mechanical properties of manganese-based nanocomposites for supercapacitors

Galib, Musanna (Department of Mechanical Engineering, 2019-05-08)

The Electric Double Layer (EDL) supercapacitors can have extremely high-power densities, incomparable cycle life, stability, and reliability, as a result they are already used in uninterruptible power systems (UPS), memory ...
Experimental study of passive flow separation control by backward facing step with different aspect ratios of Naca 0012 wing

Rahman, Mahbubur (Department of Mechanical Engineering, 2019-03-23)

The lifting surface may be considered as a tool which develops a useful reaction force during its motion relative to the fluid. The surfaces of wings and tails of airplanes, propellers and blades of turbo-machinery are ...
Effect of wind gust on aerodynamic characteristics of an airfoil at low reynolds number flow

Rahman, AKM Zahidur (Department of Mechanical Engineering, 2019-03-30)

In the present study, a numerical computation of aerodynamic characteristics of Eppler 61 airfoil is studied. Eppler 61 is a thin airfoil of thickness 5.7% of the chord (c) at the location of 23.8%c from the leading edge. ...
Flow analysis of a micro-scale dual rotor viscous pump

Mondal, Md. Nur Alam (Department of Mechanical Engineering, 2018-11-24)

Micropump is the fundamental component of a microfluidic device and has been the subject of a number of researches for the last few decades. This type of pump can control and transfer small amount of fluid usually less ...
Effect of air intake and exhaust system on the performance of a biomass cook stove

Erin, Md. Tarek Ur Rahman (Department of Mechanical Engineering, 2018-05-12)

The aims of this project include the design and evaluation of biomass cook stove capable of improving the combustion processes in traditional stove designs. This includes improvement concepts of the design, construction ...
Bubble departure phenomena on modified surfaces for enhanced pool boiling

Hasan, Mahmudul (Department of Mechanical Engineering, 2018-06-02)

This research work explores bubble departure phenomena on different modified surfaces for enhanced pool boiling of water. Experiments were conducted for understanding bubble interaction with surfaces of different topography. ...
Numerical investigation on the performance of double layered h-rotor darrieus turbine

Hassan, S.M. Rakibul (Department of Mechanical Engineering, 2018-02-17)

Performance of wind turbine has been investigated for a long period of time.As a result,the design of both Horizontal Axis Wind Turbine and Vertical Axis Wind Turbine hasbeen improved. However, still there is opportunity ...
Analysis of synchronous and asynchronous whirl of jeffcott rotor considering material non-linearity

Siddique, Shah Mohammad Mohiuddin (Department of Mechanical Engineering, 2018-02-13)

Whirling is defined as the rotation of the plane made by the bent shaft and the line of centers of the bearing. The phenomenon of whirling of shaft is often explained in terms of a “Jeffcott rotor model”. The Jeffcott rotor ...
Flow behavior through t- and y-junctionsin a model blood vessel

Das, Partha Kumar (Department of Mechanical Engineering, 2018-02-26)

Atherosclerosis isa very common cardiovascular disease that is responsible for most of the death every year. Atherosclerosis is the disease that is caused by the thickening of the blood vessel wall and by the blockage of ...
Experimental study on the aerodynamic performance of winglets with curve edged wing of NACA 4412

Ara, Ismat (Department of Mechanical Engineering, 2018-02-10)

Aerodynamic drag force breakdown of a typical transport aircraft shows that lift-induced drag can be as much as 40% of total drag at cruise conditions and 80-90% of the total drag in take-off configuration. Induced drag ...
Multi-scale analysis of turbulent thermal boundary layer with zero pressure gradient

Das, Rubel Chandra (Department of Mechanical Engineering, 2017-08-16)

In the present study, a numerical approach using finite element method has been employed to investigate fully developed turbulent flow and forced convection heat transfer over an isothermally heated horizontal flat plate. ...

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