ISSN Online: 2377-424X
ISBN Print: 0-89116-299-2
International Heat Transfer Conference 7
CRYOGENIC HEAT TRANSFER He4 KAPITZA CONDUCTANCES INCLUDING PHASE CHANGE EFFECTS
Abstrakt
A summary of Kapitza resistance-influenced
heat transfer at cryo-temperatures is presented
with emphasis on the coolant He4 in various states and solid-solid systems below 10 K. Low entropies
and ordering processes on a macroscopic scale in
super fluid He II provide access to new heat transfer
modes of convective and radiative transport.The
latter have an impact in conjunction with oscillatory,
low-energy modes (acoustic phonons) of solid
state lattices. Aside from numerical information
on low temperature Kapitza resistance-related heat
transfer modes, anomalies including transients are
stressed which constitute recognizable departures
from classical behavior observed at room temperature
and above.