The Solving of the Inverse Thermal Conductivity Problem for Study the Short Linear Heat Pipes ()
ABSTRACT
The results of studies by
solving the inverse thermal conductivity problem of the
heat capacity of evaporator of the short linear heat pipes (HP’s) with a Laval
nozzle-liked vapour channel and intended for cooling spacecraft and satellites
with strict take-off mass regulation are presented. Mathematical formulation of the inverse problem for the HP’s thermal conductivity in one-dimensional coordinate system is
accompanied by the measurement results using the monotonic heating method in a
vacuum adiabatic calorimeter the HP’s surface temperatures along the
longitudinal axis over the entire temperature load range, thermal resistance,
and arrays of thermal power data on the evaporator Qev and vortex flow calorimeter Qcond for the condensation surface allow us to estimate
the average value of the evaporator heat capacity Cev by solving the inverse thermal conductivity problem
in the HP’s evaporator region. Since at the beginning of working fluid boiling
for a certain time interval, the temperature of the capillary-porous evaporator
remains close to constant, and with the continuation of heating and by solving
the inverse thermal conductivity problem, it becomes possible to calculate the
heat capacity of the working evaporator and the evaporation specific heat of
the boiling working fluid and compare it with the table values.
Share and Cite:
Seryakov, A. (2022) The Solving of the Inverse Thermal Conductivity Problem for Study the Short Linear Heat Pipes.
Engineering,
14, 185-216. doi:
10.4236/eng.2022.146018.