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Heat Transfer Analysis Of Slot Jet Impingement Onto Roughened Surfaces, Rashid Ali Alshatti

USF Tampa Graduate Theses and Dissertations

The effect of surface roughness on jet impingement heat transfer was investigated in this research. A numerical analysis was conducted for free surface slot jet impinging normally onto a heated plate. Six different geometries and three different plate materials were investigated. The cooling fluid used for the analysis was water, and the flow was laminar with a range of Reynolds number (Re) from 500 to 1000. Temperature distribution, local and average heat transfer coefficient, and local and average Nusselt number were presented for each case.

The steady state heat transfer results show that the increase in Reynolds number (Re) increases …

Evaluation Of Ferrate Preoxidation For Drinking Water Treatment, Joseph E. Goodwill

Doctoral Dissertations

Ferrate (Fe(IV)) has been proposed as a viable alternative for pre-oxidation in drinking water treatment (Jiang & Lloyd, 2002; Sharma, Kazama, Jiangyong, & Ray, 2005). The primary advantages of ferrate include a strong oxidation potential without the formation of halogenated by-products. In addition, the by-product of ferrate oxidation, ferric iron (Fe(III)), may have beneficial impacts on downstream particle destabilization and removal processes. Also, ferrate has disinfectant properties and may also provide pathogen inactivation in drinking water (Sharma et al., 2005). However, despite these advantages, there is a dearth of research experience that examines the implications of using ferrate for treating …

The Effect Of Urbanization On The Embodied Energy Of Drinking Water In Tampa, Florida, Mark Vincent Eli Santana

USF Tampa Graduate Theses and Dissertations

Increasing urbanization has serious implications for resource and energy use. One of these resources is drinking water. The increased amount of impervious surfaces associated with urban development is responsible for increased runoff during rain events, which may have a negative impact on the quality of nearby bodies of water, including drinking water sources. The growing populations associated with urbanization require a higher water demand. In addition, urban drinking water systems use energy to collect, treat, and distribute a safe reliable effluent to users. Therefore, this study focuses on the degree to which urbanization influences the embodied energy of drinking water …

A Cloud-Based Gssha Index Map Editor Utility For Watershed Decision Support, Jocelynn Marie Anderson

Theses and Dissertations

Preventing damages from flooding is critically important for city managers and planners.Efforts in protecting infrastructure from flooding are often coupled with building hydrologicmodels to provide predictions of what is likely to happen during storm events. As land usechanges, these models must be updated, which is more challenging with sophisticated models. Ateam of researchers from universities in Utah and Wyoming have been developing tools forwater management in the Intermountain West as part of a collaborative NSF research grantcalled CI-WATER. In particular, a free and open source web platform called Tethys has beendeveloped to support the development and hosting of hydrologic web …

Proposal For Extracting A Drip Irrigation System And Implementing A Micro-Sprinkler Irrigation System On A 30-Acre Almond Orchard, Nicolette Schiber

Agricultural Education and Communication

The purpose of this project was to develop a plan to remove a drip-irrigation system and implement a micro-sprinkler irrigation system into a 30-acre almond orchard located in Livingston, California. The reason for removing the drip-irrigation system and inserting a micro-irrigation system was due to the farm wanting to perform less labor when it comes to harvesting time but still conserve water. Through careful research certain choices were made in order to choose what equipment would be used in the new irrigation system. The data and research provided is based on the specific type of orchard and scale of the …

Smart Water Meter, Jeff Hufford, Eric Adler, Garrett Hall

Mechanical Engineering

No abstract provided.

Remote Water Metering In Venecia, Nicaragua, Jeffrey Wettstein

Honors Theses

The senior Capstone Design Project is the culmination of over three years of undergraduate work in electrical engineering, and other related fields. The project allows students to demonstrate their knowledge on a tangible design. Starting from a blank slate, the Capstone process asks students to carefully move through every stage of design in order to create the most effect output. Water shortage is a major problem for the entire world including the United States, but particularly in developing countries like Nicaragua. The community of Venecia, Nicaragua has a unique water problem. Community members leave taps running in fear that if …

Active Fog Catcher, Michael Giglio, Carson Hand, William Beechinor, Kai Zhang

Mechanical Engineering

The active fog catching senior project team has been asked to develop a device that will harvest water from the atmosphere, namely fog, using active means. The project will be centered on maximizing water collection rate, with efficiency as a secondary concern. The final design utilizes a refrigeration system in which fans pull air across the cold evaporators inside of a duct. Water condenses on the evaporators and drain into a collection container. It was decided to focus on maximizing water collection at the cost of efficiency because the feasibility of actively harvesting fog must be proved before trying to …

Freedom Ski, Toby A. Goldsteinholm, Ashley Scharff, Justin Satnick, Markus Rutner

Mechanical Engineering

The current availability of water skis for people who are paraplegic or quadriplegic is very limited. The aim of our project is to design a system that improves upon the current models of specialized water skis. Our intent is to create a waterski system that is structurally stable and handles responsively, in order to ensure that anyone is capable of effectively using our system to waterski.

The main client of our project is Quality of Life Plus, an organization that aims to aid veterans of the armed forces who have physical disabilities to still enjoy a good quality of life. …

Systems Modeling And Economic Analysis Of Photovoltaic (Pv) Powered Water Pumping Brackish Water Desalination For Agriculture, Michael A. Jones

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objective of this study was to determine the economic viability of solar powered water pumping and desalination systems for agriculture. Growing global demand for agricultural production has put increased pressure on limited freshwater resources in various locations around the word. Many areas have low quality groundwater resources that have not been utilized for agriculture due to limited availability to electricity, high operational costs of diesel generators and the economics associated with water pumping and processing. Reverse osmosis is a desalination technology that removes salts and other minerals from low-quality water, making it fit for drinking or irrigation. Reduced costs …

Learning From Cinara: Exploring The Depths Of Participatory Water Engagement In Cali, Colombia, Zachary T. Strickland

Honors College Theses

Located within the Universidad del Valle in Cali, Colombia, CINARA is an academic institution, comprised of both engineers and social scientists, that has almost three decades of experience regarding participatory approaches to water supply and environmental sanitation. In this paper, I argue that CINARA’s work is important due to its emphasis on meaningful community participation that significantly involves communities in decisions on technical matters that are usually allocated exclusively to “experts.” Furthermore, the valuation of social considerations and non-technical knowledge found amongst CINARA’s engineers stands in distinct contrast to traditional development practices and engineering mindsets. This paper will go on …

Developing A Colorimetric Membrane Sensor To Detect Trihalomethanes In Water Samples Utilizing The Fujiwara Reaction, Max D. Duckworth

Williams Honors College, Honors Research Projects

This work focused on creating a colorimetric sensor to detect trihalomethanes (THMs) at concentrations near the level of environmental regulations from the environmental protection agency (EPA). This work utlized the fujiwara reaction as well as a hydrophobic electrospun polyprolylene membrane to produce a sensitive colorimetric reaction. A calibration curve was produced which was able to predict the concentration of a bromoroform solution in the range of 8-250 ppb with a confidence of 97.7 % using the intensity of the color change as a quantitative measure.