Index Catalog // ScholarsArchive@OSU

Condensation of a zeotropic mixture, R-454C, and its individual components, R-1234yf and R-32, in microfin tubes

Creator:: Matty, Ethan P.
Abstract:: This work compares the condensation heat transfer and pressure drop for zeotropic refrigerant R-454C and its individual components, R-32 and R-1234yf, in horizontal microfin tubes. One microfin tube has a 4 mm outer diameter, 0.18 mm wall thickness, and a surface area ratio of 1.56. The second tube has a...
Resource Type:: Masters Thesis
Full Text:: a Zeotropic Mixture, R-454C, and its Individual Components, R-1234yf and R-32, in Microfin Tubes

Rational Fuel Design for Low Temperature Internal Combustion Engines

Creator:: Daly, Shane R.
Abstract:: This work introduces a new methodology to design transportation fuels offering improved efficiency and reduced emissions, aimed to complement both traditional and emerging engine technologies. Many of these emerging technologies are centered around exploiting low temperature combustion (LTC) strategies that offer improved efficiency and reduced emissions. However, a standardized fuel...
Resource Type:: Dissertation
Full Text:: Design for Low Temperature Internal Combustion Engines Abstract approved: Christopher L. Hagen This

Multi-Scale Study of Ember Production and Transport under Multiple Environmental and Fuel Conditions

Creator:: Hudson, Tyler R.
Abstract:: Spot fires caused by lofted embers (i.e., firebrands) can be a significant factor in the spread of wildland fires. Embers can be especially dangerous near the wildland-urban interface (WUI) because of the potential for the fire to be spread near or on structures. Many studies have investigated the transport of...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Tyler R. Hudson for the

Effects of Residual CO2 and N2 on Detonation Velocity and Detonation Limits

Creator:: Glad, Harley R.
Abstract:: Detonation combustion has gained interest throughout the years because of its potential to increase thermodynamic cycle efficiency when compared to deflagration based cycles. The expected benefits result from a pressure gain during the combustion process instead of a pressure drop, as observed for deflagrations. The implementation of detonations can be...
Resource Type:: Masters Thesis
Full Text:: Harley R. Glad for the degree of Master of Science in Mechanical Engineering presented on December 18

Radiation Emissions from Turbulent Premixed Jet-A/Air Flames Diluted with Combustion Products

Creator:: Hoter, Zohar R.
Abstract:: Heat flux measurements of radiation emissions from turbulent premixed flames diluted with N 2 and CO 2 were taken to identify sensitivities of radiation heat loss to diluent fraction and species. This work is motivated by the desire to better characterise radiant heat transfer in the presence of combustion products,...
Resource Type:: Honors College Thesis
Full Text:: example of emissions from a flame and background. The total radiation heat transfer, Qr, is then

Ignition of Fuel Beds by Firebrands

Creator:: Bean, Derek R.
Abstract:: The severity of wildfires around the globe is increasing. At the same time, urban development is expanding outward into areas where severe fires occur. There is an increased risk of home loss to fires in areas where severe fires and urban expansion meet. Ignition of homes or nearby fuel is...
Resource Type:: Dissertation
Full Text:: , respectively. R is the universal gas constant, and Tp0 is the initial temperature of the heat source

Design, Fabrication, and Evaluation of a Novel High-Performance Resistance Heater Rod for Nuclear Thermal Hydraulic Experimentation

Creator:: Sharaf, Salem A.
Abstract:: The Accident Tolerant Fuels campaign demonstrated a need for nuclear fuel pin simulators to further research fuel and cladding combinations that can withstand off normal conditions in light water reactors. The use of a heater rod as a fuel pin simulator greatly reduces the risk involved during testing as no...
Resource Type:: Masters Thesis
Full Text:: Experimentation. Abstract approved: ______________________________________________________ Wade R

The Mira 2 Rocket Engine: Applying Lessons Learned for an Improved Iteration

Creator:: Dimas-Harms, Colton R.
Abstract:: In this paper, I present the design of Mira 2, a small-scale, liquid bipropellant rocket engine, with a specific focus on its oxidizer-centered pintle injector. Building upon the valuable lessons and insights gained from the empirical testing of its predecessor, Mira 1, the Mira 2 engine incorporates several improvements and...
Resource Type:: Capstone Project
Full Text:: ) Characteristic Chamber Length (L*) 1417.32 (55.8) mm (inch) Nozzle Throat Diameter 55.37 (2.180) mm (inch

Radiation from an infinite plane to parallel rows of infinitely long tubes - hottel extended

Creator:: Qualey, Douglas L.
Abstract:: A two-dimensional model for predicting the rate of radiation heat transfer for the interior of an industrial furnace is described. The model is two-dimensional due to the assumptions of the heat source as an infinite radiating plane and the heat sink as rows of parallel tubes that are both infinite...
Resource Type:: Masters Thesis
Full Text:: infinitely long tubes - hottel extended AN ABSTRACT OF THE THESIS OF Douglas L. Qua ley for the degree

An experimental investigation into the dynamic collapse phase of drilling fluid discharged into a stratified, flowing environment

Creator:: Albright, Stephen L.
Abstract:: Dumping drilling mud from offshore drilling rigs into the ocean could have a negative impact on the marine environment. Due to this possible impact, the Offshore Operators Committee (OOC) has deemed it necessary to predict the fate of drilling mud discharged into the ocean. Through the funding of OOC and...
Resource Type:: Masters Thesis
Full Text:: OF Stephen L. Albright for the degree of Master of Science in Mechanical Engineering presented on

ScholarsArchive@OSU

Condensation of a zeotropic mixture, R-454C, and its individual components, R-1234yf and R-32, in microfin tubes

Rational Fuel Design for Low Temperature Internal Combustion Engines

Multi-Scale Study of Ember Production and Transport under Multiple Environmental and Fuel Conditions

Effects of Residual CO2 and N2 on Detonation Velocity and Detonation Limits

Radiation Emissions from Turbulent Premixed Jet-A/Air Flames Diluted with Combustion Products

Ignition of Fuel Beds by Firebrands

Design, Fabrication, and Evaluation of a Novel High-Performance Resistance Heater Rod for Nuclear Thermal Hydraulic Experimentation

The Mira 2 Rocket Engine: Applying Lessons Learned for an Improved Iteration

Radiation from an infinite plane to parallel rows of infinitely long tubes - hottel extended

An experimental investigation into the dynamic collapse phase of drilling fluid discharged into a stratified, flowing environment

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