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Simulation Of An Air Cooled Single-Effect Solar Absorption Cooling System With Evacuated Tube Collectors, Mohsen Jahandardoost 2015 University of Nevada, Las Vegas

Simulation Of An Air Cooled Single-Effect Solar Absorption Cooling System With Evacuated Tube Collectors, Mohsen Jahandardoost

UNLV Theses/Dissertations/Professional Papers/Capstones

Consistently increasing CO2 emission and ozone depletion from synthetic refrigerants are serious environmental issues challenging the scientific community. Absorption cooling systems give scope of utilizing low grade energy source for generating cooling effect. Solar energy is one of these low grade energy sources and with considering the fact that cooling demand increases with the intensity of solar radiation, solar refrigeration has been considered as a logical solution.

This thesis consists of two different simulation stages, in the first stage, a single effect lithium bromide absorption cooling system with constant cooling capacity is modeled and the effect of ambient and generator ...


Zero Energy Ready Multifamily Dwellings For The Redevelopment Of Downtown Knoxville, Tn, William Twickler, Ben Webb, Georgia White 2015 University of Tennessee, Knoxville

Zero Energy Ready Multifamily Dwellings For The Redevelopment Of Downtown Knoxville, Tn, William Twickler, Ben Webb, Georgia White

University of Tennessee Honors Thesis Projects

No abstract provided.


Numerical Simulation And Optimization Of Carbon Dioxide Utilization For Enhanced Oil Recovery From Depleted Reservoirs, Razi Safi 2015 Washington University in St Louis

Numerical Simulation And Optimization Of Carbon Dioxide Utilization For Enhanced Oil Recovery From Depleted Reservoirs, Razi Safi

Engineering and Applied Science Theses & Dissertations

Due to concerns about rising CO2 emissions from fossil fuel power plants, there has been a strong emphasis on the development of a safe and economical method for Carbon Capture Utilization and Storage (CCUS). One area of current interest in CO2 utilization is the Enhanced Oil Recovery (EOR) from depleted reservoirs. In an Enhanced Oil Recovery system, a depleted or depleting oil reservoir is re-energized by injecting high-pressure CO2 to increase the recovery factor of the oil from the reservoir. An additional benefit beyond oil recovery is that the reservoir could also serve as a long-term storage ...


Response Of Endothelial Cells To Quantified Hemodynamic Shear Stress, Hamed Avari 2015 The University of Western Ontario

Response Of Endothelial Cells To Quantified Hemodynamic Shear Stress, Hamed Avari

University of Western Ontario - Electronic Thesis and Dissertation Repository

Cardiovascular diseases (CVDs) are the number one cause of death globally. Arterial endothelial cell (EC) dysfunction plays a key role in many of these CVDs, such as atherosclerosis. Blood flow-induced wall shear stress (WSS), among many other pathophysiological factors, is shown to significantly contribute to EC dysfunction.

The present dissertation is an in vitro investigation of quantified WSS on ECs to quantitatively analyze the EC morphometric parameters, as well as cytoskeletal remodeling.

A hemodynamic facility based on the parallel plate flow chamber (PPFC) concept. The Laser Doppler Velocimetry (LDV) method with a custom set-up was implemented to suit the needs ...


Development Of Composite Material Testing Facility For Cryogenic Fuel Tank Applications, Innovative Research Publications IRP India, Sandeep Singh, Karthik Sunil, Prudhvinath Reddy, Idris Syed Mahaboob, Raja Sekhar Dondapati 2015 Innovative Research Publications

Development Of Composite Material Testing Facility For Cryogenic Fuel Tank Applications, Innovative Research Publications Irp India, Sandeep Singh, Karthik Sunil, Prudhvinath Reddy, Idris Syed Mahaboob, Raja Sekhar Dondapati

Innovative Research Publications IRP India

Composite materials are being used extensively in different realms of science for various applications. There use is prominent in the aerospace industry. The testing of these composite materials is of substantial importance, as they might be susceptible to failure due to the variation in the temperature ranges and the cryogenic temperatures which the materials have to endure. In the present work, the tensile strength of composite materials are observed using double walled vacuum chamber which is designed for the Universal Testing Machine (UTM)


The Mechanical Properties Of Ukam Fibre-Reinforced Cashew Nut Shell Resin Composite, Innovative Research Publications IRP India, Ibe Godwin Anwara, Dumpe Koba Barinem 2015 Innovative Research Publications

The Mechanical Properties Of Ukam Fibre-Reinforced Cashew Nut Shell Resin Composite, Innovative Research Publications Irp India, Ibe Godwin Anwara, Dumpe Koba Barinem

Innovative Research Publications IRP India

The mechanical properties of ukam fibre cashew nut shell resin composite were studied for possible structural application in engineering. Basically, the hand lay-up method was employed to manufacture the test samples of the composite by 40:60 weight ratio and testing the samples’ mechanical properties using the instron tensile machine and the izod impact machine respectively. Consequently, the experiments demonstrated that the ukam fibre reinforced cashew nut shell resin composite has a maximum tensile strength of 40.5MPa, the impact energy of 1.93J and a young tensile modulus of 1GPa. The above results indicate that ukam fibre- reinforced cashew ...


The New Propeller Design 3 Blades Type On 18o Skew Angle And Testing Cavitation Of Tailing Thai Boat, Innovative Research Publications IRP India, Jaruphant Noosomton, Jarruwat Charoensuk 2015 Innovative Research Publications

The New Propeller Design 3 Blades Type On 18o Skew Angle And Testing Cavitation Of Tailing Thai Boat, Innovative Research Publications Irp India, Jaruphant Noosomton, Jarruwat Charoensuk

Innovative Research Publications IRP India

This paper presents to case study the method design of 3-blade type ship propeller. cavitation flow is investigated around ship propellers experimentally. Testing of different types new model propellers and local type propellers are performed in this study. A 3-blades, skew angle 18 degree, developed area 55 and comparison which local type propeller commonly used by Thai fishermen. A practical design method was achieved by combining a vortex lattice lifting method and lifting surface method. The optimum circulation distribution yielding the maximum lift-to-torque ratio was computed for given thrust and chord lengths along the radius of the propeller by dividing ...


Joints Properties Of One Side Welded Of Ship Materials With Variation Of Angle Groove, Innovative Research Publications IRP India, Yustiasih Purwaningrum, Triyono no, Tri Syarifuddin, Isharyadi di 2015 Innovative Research Publications

Joints Properties Of One Side Welded Of Ship Materials With Variation Of Angle Groove, Innovative Research Publications Irp India, Yustiasih Purwaningrum, Triyono No, Tri Syarifuddin, Isharyadi Di

Innovative Research Publications IRP India

Indonesian National Transportation Safety Commission based on data from the period 2003-2008 and The Study for the Maritime Traffic Safety System Development Plan states that 21% of the cause of the accident was the failure of Indonesian ship in the structure of the ship (hull structure). This study aimed to investigate the effect of variations in the angle groove of one side welding. Material used is low carbon steel LR grade A in a thickness 12 mm were welded using GMAW (Gas Metal Arc Welding) with a angle groove 20°, 40° and 60°. The physical properties examined with an optical ...


A Case Study Of Multiple-Use Finish Electrodes For Die-Sinking Edm, Troy A. Robertson 2015 Western Kentucky University

A Case Study Of Multiple-Use Finish Electrodes For Die-Sinking Edm, Troy A. Robertson

Masters Theses & Specialist Projects

This study examines the use of one finishing electrode to finish multiple dies without remachining the electrode. The multiple-use electrode finishing experiment in this study addresses technology in the die-forging industry. Methods of manufacturing spherical straight bevel forge gear dies have relied on die-sinking Electrical Discharge Machining (EDM) practices that showed great potential for advancement. The focus of this study is solely on the improvements of electrode use in EDM finishing-processes. The surface finish quality itself is not an area of concern other than maintaining that it does not diminish. The focused concern is maximizing the process by using one ...


Fiber Optic Bandage, Logan McNeil 2015 University of Tennessee, Knoxville

Fiber Optic Bandage, Logan Mcneil

University of Tennessee Honors Thesis Projects

No abstract provided.


Industrial Paper Tray, Kristin L. Woodward, Brady Bauer, Kevin Brown, Austin McLaurine 2015 University of Tennessee - Knoxville

Industrial Paper Tray, Kristin L. Woodward, Brady Bauer, Kevin Brown, Austin Mclaurine

University of Tennessee Honors Thesis Projects

No abstract provided.


An Investigation Of The Flame Structures And Burning Speeds Of H2/Co/Air Mixtures, Alden William Ahlholm 2015 Northeastern University

An Investigation Of The Flame Structures And Burning Speeds Of H2/Co/Air Mixtures, Alden William Ahlholm

Mechanical Engineering Master's Theses

With the potential of synthetic gas to be used as a replacement for natural gas in the gas turbine industry the knowledge of its fundamental thermo-physical properties is of utmost importance. The laminar burning speed and flame structures of spherically expanding flames of hydrogen and carbon monoxide mixtures (Syngas) with air have been studied over a wide range of equivalence ratios, initial mixture temperatures, and initial pressures. The mixtures studied consisted of 0.1:0.9 hydrogen to carbon monoxide ratio at initial temperatures of 298 K and 380 K, and initial pressures of 0.5 atm, 1 atm, and ...


Eight Degree Of Freedom Vehicle Model With Pitch, Yaw, Tire Control And Sensor Inputs, Sean T. Hirtle 2015 California Polytechnic State University

Eight Degree Of Freedom Vehicle Model With Pitch, Yaw, Tire Control And Sensor Inputs, Sean T. Hirtle

Master's Theses and Project Reports

This research focuses on the development of an eight degree of freedom vehicle model in the MATLAB computing language. Its purpose is to provide flexibility in the modeling and implementation of signal inputs and crash avoidance logic while maintaining accuracy in the physics of the vehicle’s motion. Firstly, the equations of motion for the bodies involved under a reasonable set of assumptions were developed. Next the model was translated to computer code. By writing the model in SimuLink with *.m files, the modularity of the code is enhanced. To validate the model, several well defined tests were simulated.

To ...


Measurement Of Laminar Burning Speed And Investigation Of Flame Stability Of Syngas/Air Mixture, Bander Nafe Alhazmi 2015 Northeastern University

Measurement Of Laminar Burning Speed And Investigation Of Flame Stability Of Syngas/Air Mixture, Bander Nafe Alhazmi

Mechanical Engineering Master's Theses

Synthetic gas (Syngas) is a growing alternative fuel for fossil fuel used in power generation industries. It is cost effective and friendly with the ecosystem. In order to validate its capability as fuel supply, determination of syngas laminar burning speed is fundamental to understand its combustion behavior and kinetic model. Laminar burning speed of syngas with 5% of hydrogen and 95% carbon monoxide mixture has been measured using a constant volume cylindrical chamber and schlieren photography. The laminar burning speed has been measured in the range of temperature from 315 K to 490 K and range of pressure from 0 ...


Experimental And Analytical Study Of An Open Cathode Polymer Electrolyte Membrane Fuel Cell., Alex Martin Bates 2015 University of Louisville

Experimental And Analytical Study Of An Open Cathode Polymer Electrolyte Membrane Fuel Cell., Alex Martin Bates

Electronic Theses and Dissertations

In this thesis four different fuel cell designs were simulated with consideration for electrochemical effects, reactant species transport, and heat transfer. Simulation results include the mass fraction of hydrogen, oxygen, and water, temperature gradient, pressure gradient, and velocity profile. One of the fuel cell designs was experimentally tested using two different membrane electrolyte assemblies; one high performance and the other high durability. The polarization curve resulting from simulation compares well with the polarization curve produced by experimental work. A 16 cell fuel cell stack was simulated with consideration for stack compression. The same fuel cell stack was tested experimentally for ...


Vanadium Trichloride Thermochemical Solar Energy Storage System Analysis., Caleb Michael Rogers 2015 University of Louisville

Vanadium Trichloride Thermochemical Solar Energy Storage System Analysis., Caleb Michael Rogers

Electronic Theses and Dissertations

As annual energy consumption grows, developing renewable solar energy conversion systems, storage systems, and high density electrical energy production systems is growing increasingly important. The proposed system utilizes vanadium trichloride thermal decomposition to produce chlorine gas and vanadium dichloride. A second reaction combines gaseous hydrogen chloride and the product vanadium dichloride to reform vanadium trichloride and produce hydrogen gas. Hydrogen gas and chlorine gas can be stored indefinitely and electrical energy is obtained from the chemicals by a non-humidified dry membrane hydrogen – chlorine fuel cell. The fuel cell produces the gaseous hydrogen chloride needed to reform vanadium trichloride. The cycle ...


Investigation Of The Alkaline Electrochemical Interface And Development Of Composite Metal/Metal-Oxides For Hydrogen And Oxygen Electrodes, Michael Kenneth Bates 2015 Northeastern University

Investigation Of The Alkaline Electrochemical Interface And Development Of Composite Metal/Metal-Oxides For Hydrogen And Oxygen Electrodes, Michael Kenneth Bates

Chemistry Dissertations

Understanding the fundamentals of electrochemical interfaces will undoubtedly reveal a path forward towards a society based on clean and renewable energy. In particular, it has been proposed that hydrogen can play a major role as an energy carrier of the future. To fully utilize the clean energy potential of a hydrogen economy, it is vital to produce hydrogen via water electrolysis, thus avoiding co-production of CO2 inherent to reformate hydrogen. While significant research efforts elsewhere are focused on photo-chemical hydrogen production from water, the inherent low efficiency of this method would require a massive land-use footprint to achieve sufficient ...


Controller Area Network (Can) Bus J1939 Data Acquisition Methods And Parameter Accuracy Assessment Using Nebraska Tractor Test Laboratory Data, Samuel E. Marx 2015 University of Nebraska-Lincoln

Controller Area Network (Can) Bus J1939 Data Acquisition Methods And Parameter Accuracy Assessment Using Nebraska Tractor Test Laboratory Data, Samuel E. Marx

Biological Systems Engineering--Dissertations, Theses, and Student Research

Electronics have become a standard in agricultural equipment and the trend of “smarter” equipment is on the rise. To have “smarter” equipment, a working knowledge of the accuracy of the data being transmitted throughout that equipment is needed. The controller area network (CAN) bus is the current interface to machine operation data transmitted between electronic control units (ECUs).

Because CAN bus has been around for nearly thirty years, numerous devices have been created for interfacing with the bus. Choosing a device can be a challenge, especially without knowing if there are differences between the logging methods for true data representation ...


Using Controlled Curing In A Custom Stereolithography-Based 3d Printing Machine To Obtain Graded Property Variations, Evan S. Schwahn 2015 University of Nebraska-Lincoln

Using Controlled Curing In A Custom Stereolithography-Based 3d Printing Machine To Obtain Graded Property Variations, Evan S. Schwahn

Mechanical (and Materials) Engineering -- Dissertations, Theses, and Student Research

In an effort to construct materially graded parts, a strategy was studied that is based on varying ratios of interpenetrating polymer networks (IPNs) in a manner that can be adapted to 3D printing. Using IPNs has the benefit of allowing access to a broad range of property variation. The strategy used involves controlled partial curing of the first network, followed by washing of that network to remove uncured components, then swelling of the structure with a second polymer component and curing.

This method was utilized to control final IPN properties by controlling the extent of crosslinking of the initial network ...


Force Sensing In Arthroscopic Instruments Using Fiber Bragg Gratings, Daniel S. Yurkewich 2015 The University of Western Ontario

Force Sensing In Arthroscopic Instruments Using Fiber Bragg Gratings, Daniel S. Yurkewich

University of Western Ontario - Electronic Thesis and Dissertation Repository

Minimally-invasive surgery has revolutionized many medical procedures; however, it also impedes the ability to feel the interaction between the surgical tool and the anatomical part being operated on. In order to address this problem, it is necessary to obtain accurate measurements of the interaction forces exerted on the surgical tools during surgery. These forces can then be manifested to the surgeon via a haptic device or presented visually (visual-force feedback). This thesis describes the use of a fiber optic device to measure and display to the surgeon interaction forces acting on an arthroscopic tool. The sensorization of the tool involves ...


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