Index Catalog // ScholarsArchive@OSU

An investigation of domestic oil heating with special emphasis on warm-air furnaces

Creator:: Kollas, Wilhelm James
Resource Type:: Masters Thesis
Full Text:: WITH SPECIAL EMPHASIS ON WARM-AIR FURNACES Submitted to the OREGON STATE AGRICULTURAL COLLEGE In

The phase diagram of zirconium and chromium with special reference to the transformation in the intermetalic compound ZrCr₂

Creator:: Shen, Yuan-shou
Abstract:: The zirconium-chromium phase diagram was investigated in the region between 40% and 85% chromium. The ZrCr₂ intermetallic compound which has been the source of some controversy was especially considered. It was found that ZrCr₂ transforms from the low temperature C-15 (MgCu₂, FCC) structure to the high temperature C-14 (MgZn₂, HCP)...
Resource Type:: Dissertation
Full Text:: The phase diagram of zirconium and chromium with special

Measurement and scrubbing of SO₂ and NOx from boiler flue gases

Creator:: Reichel, Rolf Hubertus
Abstract:: At the Oregon State University heating plant the primary source of heat energy is natural gas with crude oil as the standby supply of fuel. In the future, as natural gas becomes a rarer commodity, more reliance will be placed on the use of the more expensive, more polluting, but...
Resource Type:: Masters Thesis
Full Text:: were reduced by 50% from the 150 ppm stack concentration. MEASUREMENT AND SCRUBBING OF SO 2 and

Flow measurement and characterization in shallow geothermal systems used for downhole heat exchanger applications

Creator:: Churchill, David J.
Abstract:: This thesis reports on an investigation of flow patterns in shallow geothermal wells in Klamath Falls, Oregon, Although wells have been extensively used in the area, the exact nature of the flows in the wells has not been characterized. Flow characterization is a principal object of this study. Horizontal crossflows...
Resource Type:: Masters Thesis
Full Text:: probe that was calibrated in a special calibration system. The high-temperature water in the system

Evaluation of the predictive capability of two-phase flow maps for microchannel condensation of R-134a at low mass flux conditions

Creator:: VanderPutten, Michael A.
Abstract:: Predicting condensation flow regimes and the associated heat transfer and pressure drop in microchannels is critical for designing terrestrial and space systems for heating, cooling, power generation, and advanced manufacturing. It is well established that in flows approaching the microscale (Dh < 1 mm) gravity-dominated flow regimes become less relevant,...
Resource Type:: Masters Thesis
Full Text:: 80 to 150 kg-m-2-s-1 in square microchannels (Dh = 840 μm) at quality ranging from 0.01 to 0.60. A

A study of adiabatic and diabatic flow boiling in parallel microchannels and fractal-like branching microchannels

Creator:: Daniels, Brian J.
Abstract:: A one-dimensional numerical model has been developed to study diabatic and adiabatic flow boiling in microchannels. This model accounts for developing flow effects and variable property effects. The model uses correlations for void fraction and two-phase multipliers found in the literature. The model has been used to study the performance...
Resource Type:: Dissertation
Full Text:: width ratio of 0.7071, a channel height of 150 um, a total channel length of 18 mm and a terminal

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
Full Text:: . Digital image correlation measurement technique was applied for special tensile off- axis ad-hoc tests

On the optimization of performance in fractal-like branching microchannel heat transfer devices

Creator:: Heymann, Douglas Benjamin
Abstract:: Fractal-like branching microchannel flow networks have been found to improve wall temperature uniformity and decrease both pressure drop and flow power compared to arrays of straight microchannels. The present study seeks to maximize the benefits of fractal-like branching channels by means of a gradient-based optimization algorithm. The algorithm identifies the...
Resource Type:: Dissertation
Full Text:: constrained by a critical heat flux, two-phase networks outperform single-phase networks by up to 150

On design and field evaluation of the noise control features of the Lake Oswego water treatment plant

Creator:: Reeder, Harry Cromwell
Abstract:: Concern about noise pollution has swept the country. People are conscious of their environment and are trying to preserve or to improve it. When the City of Lake Oswego selected a site for their water treatment plant, they had to assure the neighbors that it would not increase the ambient...
Resource Type:: Masters Thesis
Full Text:: identified and evaluated. Re- sults of indicated special treatment of the pump room were required to screen

Heat and mass transfer rates associated with the drying of Southern pine and Douglas fir veneer in air and in steam at various temperatures and angles of impingement

Creator:: Laity, Walter William
Abstract:: Southern pine and Douglas fir veneer samples were dried in air under the following conditions: air temperatures were 350, 600, and 750°F; air velocities were 50, 100, and 150 feet per second, and angles of impingement of air against the veneer surfaces were 0°, 45°, and 90°. The resulting drying...
Resource Type:: Masters Thesis
Full Text:: : air temperatures were 350, 600, and 750°F; air velocities were 50, 100, and 150 feet per second, and

ScholarsArchive@OSU

An investigation of domestic oil heating with special emphasis on warm-air furnaces

The phase diagram of zirconium and chromium with special reference to the transformation in the intermetalic compound ZrCr₂

Measurement and scrubbing of SO₂ and NOx from boiler flue gases

Flow measurement and characterization in shallow geothermal systems used for downhole heat exchanger applications

Evaluation of the predictive capability of two-phase flow maps for microchannel condensation of R-134a at low mass flux conditions

A study of adiabatic and diabatic flow boiling in parallel microchannels and fractal-like branching microchannels

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

On the optimization of performance in fractal-like branching microchannel heat transfer devices

On design and field evaluation of the noise control features of the Lake Oswego water treatment plant

Heat and mass transfer rates associated with the drying of Southern pine and Douglas fir veneer in air and in steam at various temperatures and angles of impingement

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