The purpose of this thesis work has been the design, construction
and calibration of an instrumented surface for convective heat
transfer studies. The surface is in the form of a flat plate roughly
24 inches wide by 48 inches long. It is made up of 48 individual
cells, laminated side-by-side...
The free convective heat transfer phenomena in air between two
vertical plates 24 by 38 inches spaced 15.895 mm apart, was investigated in this experimental study. One plate was isothermal and, the
other adiabatic.
A quartz fiber anomometer was used for measuring local
velocities in the air between the vertical...
There is need for more knowledge of the naturally acquired
diseases of the laboratory rat. Respiratory diseases occurring in
the species were reviewed with special reference to an acute respiratory
disease affecting certain rats in the Oregon State University
closed Wistar rat colony which has also involved human infections.
The...
A constant temperature anemometer, utilizing quartz coated hot
film probes, was used to measure velocities from .1 to 5 cm/sec.
The effects on anemometer performance due to time, reimmersion,
and metallic sensor coatings were examinated by repeated calibrations
of the probes. Contrary to previous published results, calibration
change due to...
Radiation induced heat generation rates of several nonfissionable materials were measured calorimetrically in a nuclear reactor environment. The calorimeter was uniquely designed to allow many materials of grossly different heat generation rates to be measured. heat transfer characteristics of the calorimeter were determined analytically and experimentally. Materials were chosen to...
The selenium-responsive syndromes and the discovery of
Factor 3-selenium focused attention on selenium in metabolism. Two
hypotheses have been advanced to explain the metabolic effect of
selenium: 1) substitution or sparing of alpha tocopherol, and 2) a
primary role in metabolism. The first hypothesis is supported by
Scott and Desai,...
An experimental investigation was conducted for natural convection
heat transfer in an array of uniformly heated vertical cylinders
in mercury. The test section consisted of seven electrically heated
cylinders of 1.365 inch diameter and 3.825 inch heated length
arranged in an equilateral triangular pattern. In order to preclude
side flow...
A cold trap is a device used to remove certain impurities from
a liquid metal by controlled precipitation of such impurities.
An investigation of the thermal characteristics of laminar flow
in two air-cooled cold traps was made. This investigation showed
that the sodium heat transfer rate is a function of...
Heat transfer from a vertical flat plate in an infinite pool of
mercury was investigated. Velocity profiles were measured with a
hot-film anemometer and simultaneous temperature profiles measured
with thermocouples in this low Prandtl number liquid metal. Constant
heat flux plates at Grashof numbers of 9 x 10⁸ and 4...
A theoretical study of the heat and momentum transfer resulting
from a flow of power plant condenser effluent discharged vertically to
shallow, quiescent coastal receiving water is presented. The complete
partial differential equations governing steady, incompressible, turbulent
flow driven by both initial momentum and buoyancy are solved
using finite-difference techniques...
The heat-transfer phenomena studied in this work were
associated with pool boiling from a flat horizontal surface facing
upward with the bulk liquid at its saturation temperature. The
analysis of boiling sound and the investigation of the transition boiling
mechanism constituted the essence of the present study.
The distinctively large...
To study the association between Fusarium root-rot resistance
(Fusarium solani f. sp. phaseoli) and economically inportant characteristics
of beans, 2259 lines each consisting of 30 plants were used.
The lines were randomly selected for root-rot reaction, but were
selected for differences in vigor and differences in plant and seed
pigments,...
Natural convection heat transfer in air between two vertical
plates 38 by 24 inches was investigated in this work with spacings
between the plates of 0.625, 1.0 and 1.75 inches. One plate was isothermal
and the other adiabatic.
To measure the point velocities in the air layer a very thin...
Note: From here on Minimum Pollution Product and MPP will be used
interchangeably.
This study was initiated to develop a trademark which could be
registered and used for advertising purposes by companies producing
and selling products which are minimum pollutants relative to competitive
products in the same market.
One of...
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...
An experimental investigation was conducted to determine
characteristics of natural convection of mercury in a vertical channel,
which was open at both ends. Two cases were investigated separately:
1) both walls uniformly and symmetrically heated, and 2) one wall
heated with the other insulated.
Heat transfer correlations in laminar flow...
This thesis is concerned with the analysis of heat transfer in a tube with forced flow under conditions of an arbitrary variation of wall heat flux both axially and circumferentially. This total study is separated into two distinct problems which are presented separately. The first is the case of a...