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

Large-strain softening of aluminum in shear at elevated temperature

Creator:: Alhajeri, Saleh N.
Abstract:: Pure aluminum deformed in torsion (shear) at elevated temperatures reaches a broad "peak" stress and then undergoes about a 17% decrease in flow stress with deformation to roughly 1-2 equivalent uniaxial strain. Beyond this strain the flow stress is approximately constant. The sources for this softening are unclear. The suggested...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Saleh N. Aihajeri for the degree

Two-phase fluid break flow measurements and scaling in the advanced plant experiment (APEX)

Creator:: Pimentel, David Alan
Abstract:: The Oregon State University (OSU) Advanced Plant Experiment (APEX) is a one-fourth height, one-half time scale, reduced pressure integral systems test facility designed to model the long-term cooling capabilities of the emergency core cooling systems of the Westinghouse AP600. This study provides a brief description of the APEX test facility,...
Resource Type:: Masters Thesis
Full Text:: ). Abstract approved: e . Reyes Lorin R. Davis The Qregon State University (OSU) Advanced Plant Experiment

A study of thermal stratification in the cold legs during the subcooled blowdown phase of a loss of coolant accident in the OSU APEX Thermal Hydraulic Testing Facility

Creator:: Wachs, Daniel M.
Abstract:: The phenomena of interest in this work is the thermal stratification which occurs during the early stages of a loss of coolant accident (LOCA) in the OSU APEX Thermal Hydraulic Test Facility, which is a scaled model of the Westinghouse AP600 nuclear power plant. Thermal stratification has been linked to...
Resource Type:: Masters Thesis
Full Text:: i tte a I R a t a I t tin r I ! N `M & :`SM N N I A , Figure 3-8

Boundary layer control tests by suction on a circular cyclinder wing section

Creator:: Dennon, Jack Dwight
Resource Type:: Masters Thesis
Full Text:: the n y JR -e 'r = 0. 0605 C U1c T 00 From Figure ii it seems reasonable to set -2- = 12; R

Utilizing the thermodynamic properties of E85 to increase the specific efficiency of a high specific output single cylinder Formula SAE engine

Creator:: Duncan, Derek N.
Abstract:: Formula SAE is a collegiate engineering competition that has participants from around the globe. Of the 1000 points available throughout the event, 100 (10%) are dedicated to the fuel efficiency of the student built race cars. Competition rules allow either gasoline or E85, a mix of 85% ethanol and 15%...
Resource Type:: Masters Thesis
Full Text:: with Duale Hochschule Baden-Württemberg-Ravensburg (DHBW-R) in Friedrichshafen, Germany. By combining

Force and impulse control for spring-mass running

Creator:: Koepl, Devin N.
Abstract:: We present a novel control strategy for running which is robust to disturbances, and makes excellent use of passive dynamics for energy economy. The motivation for our control strategy is based on observations of animals, which are able to economically walk and run over varying terrain and ground dynamics. It...
Resource Type:: Masters Thesis
Full Text:: maximum motor torque ±25N ·m I motor rotor inertia 1 rad N ·m·s2 r transmission output radius 2.3188cm

A Preliminary Methodology For Automating Functional Modeling

Creator:: Edmonds, Katherine N.
Abstract:: This thesis is the combination of two research publications working towards automating functional modeling. Functional modeling is an underutilized yet critical tool for concept generation and product design. Understanding the difficulty both novice and expert designers have in implementing functional modeling in their design process, this research sets out to...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Katherine N. Edmonds for the

A Computational Fluid Dynamics Investigation of Hemolysis Potential in a Microfluidic Hemoperfusion Device Designed for Use in Sepsis Treatment

Creator:: Myers, Karl N.
Abstract:: The potential of red blood cell (RBC) and platelet damage was studied for a novel microfluidic hemoperfusion device currently in development at Oregon State University for use in treating sepsis. COMSOL 4.4's computational fluid dynamics (CFD) module was used to examine shear rate profiles in laminar, Newtonian blood flow throughout...
Resource Type:: Honors College Thesis
Full Text:: Designed for Use in Sepsis Treatment by Karl N. Myers A PROJECT submitted to Oregon

Shear Moduli Estimates of Thermoplastic Natural Fiber Composites via Off-Axis Tensile Tests

Creator:: Johnson, Natalie N.
Abstract:: Fiber reinforced polymers have gained considerable attention due to their wide range of applications, leading to significative concerns for end-of-life recyclability and disposal. Natural fibers and recycled carbon fibers, coupled with thermoplastic matrices can provide a sustainable and environmentally friendly alternative to traditional materials. This study focused on experimental materials...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

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

Large-strain softening of aluminum in shear at elevated temperature

Two-phase fluid break flow measurements and scaling in the advanced plant experiment (APEX)

A study of thermal stratification in the cold legs during the subcooled blowdown phase of a loss of coolant accident in the OSU APEX Thermal Hydraulic Testing Facility

Boundary layer control tests by suction on a circular cyclinder wing section

Utilizing the thermodynamic properties of E85 to increase the specific efficiency of a high specific output single cylinder Formula SAE engine

Force and impulse control for spring-mass running

A Preliminary Methodology For Automating Functional Modeling

A Computational Fluid Dynamics Investigation of Hemolysis Potential in a Microfluidic Hemoperfusion Device Designed for Use in Sepsis Treatment

Shear Moduli Estimates of Thermoplastic Natural Fiber Composites via Off-Axis Tensile Tests

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