Engineering Commons^™

Impact Of Flow Direction On Local Flow Behavior In Biologically-Inspired Flow Passages, Derrick Dewayne Herrin

Honors College Theses

ABSTRACT

A computational fluid dynamics model was utilized to study the effect of flow direction on local flow behavior in biologically-inspired microscale flow networks. Biologically-inspired flow networks have been found to offer numerous advantages when compared with parallel flow networks, particularly in thermal management applications. Flow behavior was examined for a range of bifurcation angles and laminar inlet Reynolds numbers. The computational model was validated with existing theoretical solutions and verified for grid independence. As the bifurcation angle increased, the pressure drop, and thus pumping power, across the biologically-inspired flow networks increased. In addition, as the inlet Reynolds number increased, …

Vlsj Members Fall 2017, Vlsj Lab, Mechanical Engineering Department, Georgia Southern University

Members- VLSJ Lab

No abstract provided.

Mechanical Engineering News, Georgia Southern University

Mechanical Engineering News (2013-2023)

No abstract provided.

Mechanical Engineering News, Georgia Southern University

Mechanical Engineering News (2013-2023)

• Engineering Honor Society Induction Ceremonies

Mechanical Engineering News, Georgia Southern University

Mechanical Engineering News (2013-2023)

• Nanotechnology and Cancer Exploratory Collaborative Symposium

Investigation Of The Thermal Performance Of Sierpinski Carpet Fractal Fins In A Natural Convection Environment, Jennifer P. Shaffer

Honors College Theses

This experimental investigation studies the thermal performance of the first four iterations of the Sierpinski carpet pattern in a natural convection environment. This particular fractal geometry is promising in that it increases the available surface area for heat transfer while simultaneously decreasing the mass of the system. This makes it a potentially advantageous design for fins or heat sinks, especially in aerospace applications where minimizing mass of the system is essential. The thermal performance was evaluated by comparing the efficiency, effectiveness, and effectiveness per unit mass for each fractal iteration. The results indicate that efficiency decreases with each fractal iteration …

Audio-Based Productivity Forecasting Of Construction Cyclic Activities, Chris A. Sabillon

Electronic Theses and Dissertations

Due to its high cost, project managers must be able to monitor the performance of construction heavy equipment promptly. This cannot be achieved through traditional management techniques, which are based on direct observation or on estimations from historical data. Some manufacturers have started to integrate their proprietary technologies, but construction contractors are unlikely to have a fleet of entirely new and single manufacturer equipment for this to represent a solution. Third party automated approaches include the use of active sensors such as accelerometers and gyroscopes, passive technologies such as computer vision and image processing, and audio signal processing. Hitherto, most …

Thermal Performance Of A Double-Pipe Heat Exchanger With A Koch Snowflake Fractal Design, Anton Gomez

Electronic Theses and Dissertations

Double-pipe heat exchangers are the simplest type of heat exchanger and are widely utilized in industrial applications. The effectiveness of double-pipe heat exchangers can be increased by using various heat transfer enhancement techniques. Passive heat transfer enhancement methods are desirable as they do not require moving components and are easy to manufacture and maintain. The focus of this study is to implement a passive heat transfer enhancement method and to investigate how thermal performance is impacted. Specifically, the inner pipe in a heat exchanger will be modified to have a cross-section in accordance with the Koch snowflake fractal pattern. The …

Module 2: Solar Powered Cricket Lab & Engineering Guest Speaker, Lindsay Snowden

ENERGY Research and Lesson Plans

Students will participate in a Solar Panel Cricket lab to determine which environmental condition would allow for the solar panel to produce the most power. The three conditions are inside, inside with a flashlight, or outside in the sun. The students will complete a correlating lab worksheet. Students will also ask questions and hold discussions with the guest speaker. Students will actively participate while the guest speaker is presenting.

Advancing Intersection Management By Utilizing Cost Effective Intelligent Vehicle Concepts And Vehicle-To-Infrastructure Communication Techniques, Bernard O. Ibru

Electronic Theses and Dissertations

Intelligent Transport Systems (ITS) is a growing field of research which focuses on the alleviation of traffic congestion and road accidents caused by miscommunication or confusion of human drivers. Intelligent Intersection Management is a subdivision of ITS which focuses on the seamless management of vehicles arriving at, traversing and exiting intersections to prevent congestion and collision within or around the intersection. This research sought to develop a cost effective method of implementing wireless Vehicle-to-Infrastructure (V2I) communication based Intelligent Intersection Management, by employing the use of 1:4.5 scale version autonomous vehicle prototypes, on a similarly scaled four-way intersection. This was accomplished …

Research Area 4: Nondestructive Evaluation (Nde) Techniques, Vlsj Lab, Mechanical Engineering Department, Georgia Southern University

Research Areas

No abstract provided.

Solar Irradiance Forecasting And Implications For Domestic Electric Water Heating, Christopher Nutter

Electronic Theses and Dissertations

As the effects of burning fossil fuels continues to present its prevalence, the interests in alternative forms of energy is expanding. Within the home, the domestic electrical water heater accounts for approximately 17% of its energy consumption. Reducing the amount of energy required to produce hot water from this thermal system alone can have a significant effect on reducing its carbon footprint. In this presented work, a modeled domestic electrical water heater was supplied photovoltaic and on-grid electrical power to increase its energy efficiency. As photovoltaic (PV) energy is directly related to solar irradiation, it is important to receive accurate …

Wind Energy, Bob Deckard, Jaimee Howard

ENERGY Research and Lesson Plans

No abstract provided.

Careers In Engineering Lesson Plan, Lindsay Snowden

ENERGY Research and Lesson Plans

Careers in Engineering Lesson Plan. The activity is to create a version of a robotic hand with the supplies provided,

Power House Sustainable Energy Education, Rachael Grillo, Molly Hopper, Laura Mills

ENERGY Research and Lesson Plans

No abstract provided.

Research Area 2: Advanced Lightweight And Tailorable Materials, Vlsj Lab, Mechanical Engineering Department, Georgia Southern University

Research Areas

No abstract provided.

Research Area 1: Vehicle Lightweight Design And Safety, Vlsj Lab, Mechanical Engineering Department, Georgia Southern University

Research Areas

No abstract provided.

Research Area 3: Advanced Materials Joining, Vlsj Lab, Mechanical Engineering Department, Georgia Southern University

Research Areas

No abstract provided.

Renewable Energy, Keith Bazemore

ENERGY Research and Lesson Plans

Lesson Plan for Renewable Energy- Environmental Science.

Solar Energy R & D Project: Teachers Incorporating Stem- Modules To Yield An Energy Literate Generation, Tricia Kirkland, Lindsay Snowden

ENERGY Research and Lesson Plans

Background- Photovoltaic (PV) cells produce the largest amount of electricity when they are directly facing the sun. Solar panels that use tracking systems to position the panel to constantly face the sun have the greatest efficiency. But, these systems are expensive.

Aim- Design a dual axis tracking solar panel with microcontroller and sensors (light, humidity, temperature, and compass) that are both cost effective and efficient. Sensors will be used to determine performance depending on environmental factors.

Ethics Statement: Researchers will keep honest, clear, and accurate records when collecting all data in lab and communication of information learned.

Electroencephalographic Signal Processing And Classification Techniques For Noninvasive Motor Imagery Based Brain Computer Interface, Md Erfanul Alam

Electronic Theses and Dissertations

In motor imagery (MI) based brain-computer interface (BCI), success depends on reliable processing of the noisy, non-linear, and non-stationary brain activity signals for extraction of features and effective classification of MI activity as well as translation to the corresponding intended actions. In this study, signal processing and classification techniques are presented for electroencephalogram (EEG) signals for motor imagery based brain-computer interface. EEG signals have been acquired placing the electrodes following the international 10-20 system. The acquired signals have been pre-processed removing artifacts using empirical mode decomposition (EMD) and two extended versions of EMD, ensemble empirical mode decomposition (EEMD), and multivariate …

Ego-Localization Navigation For Intelligent Vehicles Using 360° Lidar Sensor For Point Cloud Mapping, Tyler Naes

Electronic Theses and Dissertations

With its prospects of reducing vehicular accidents and traffic in highly populated urban areas by taking the human error out of driving, the future in automobiles is leaning towards autonomous navigation using intelligent vehicles. Autonomous navigation via Light Detection And Ranging (LIDAR) provides very accurate localization within a predefined, a priori, point cloud environment that is not possible with Global Positioning System (GPS) and video camera technology. Vehicles may be able to follow paths in the point cloud environment if the baseline paths it must follow are known in that environment by referencing objects detected in the point cloud …

Natural Convection Heat Transfer Of Inclined Sierpinski Carpet Fractal Fins, Luke A. Fussell

Electronic Theses and Dissertations

When designing extended surfaces for the thermal management of electronic devices in aerospace applications it is critically important to minimize mass. However, this can be difficult to achieve as the rate of heat dissipated is directly proportional to the surface area. Fortunately, when certain fractal geometries, like the Sierpinski carpet, are utilized in the design of extended surfaces an increase in surface area and simultaneous decrease in mass can be achieved. The thermal performance of fins inspired by the first four fractal iterations of the Sierpinski carpet pattern was experimentally examined in a natural convection environment. The fractal fins were …

Nsf Energy - Pico-Grid Smart Homes Power Management System, Aaron Specht, Shaina Neal

ENERGY Research and Lesson Plans

No abstract provided.