Analytical treatment of gravity effects on gas loaded variable conductance heat pipes.
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Authors
Kane, David Charles
Subjects
heat pipe
heat transfer
gravity effects
gas loaded
variable conductance
CSMP
heat transfer
gravity effects
gas loaded
variable conductance
CSMP
Advisors
Kelleher, Matthew
Date of Issue
1980-12
Date
December 1980
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The formulation of a one-dimensional analytical model
representing steady state operation of a vertically oriented
gas loaded variable conductance heat pipe is presented. The
model includes not only the effects of binary mass diffusion
and axial pipe-wall conduction, but also gravitational
effects which exist at the vapor-gas interface region when
the molecular weights of the working fluid and the noncondensible
gas differ significantly. Analytical expressions
for the transport processes (mass, momentum, and energy)
along with equations of state result in a system of ten
equations which describe steady state operation of the device
Combining these expressions yields a system of two simultaneous
highly non-linear differential equations. These
equations are non-dimensionalized and set up for numerical
integration using a variable step fourth order Runge Kutta
method as part of IBM's Continuous System Modeling Program
(CSMP).
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funding
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.