Thermal-Hydraulic Performance of Printed Circuit Heat Exchanger in ...
Thermal-Hydraulic Performance of Printed Circuit Heat Exchanger in ...
Thermal-Hydraulic Performance of Printed Circuit Heat Exchanger in ...
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<strong>Heat</strong> Loss Estimation (2)<br />
Effect on the outlet temperatures:<br />
3) From 2D FLUENT CFD calculations (with(2)/without(1) heat loss)<br />
(1) (2)<br />
4) From the heat loss compensation experiments<br />
PCHE<br />
PCHE−surf<br />
Insulator Q ≈ 0<br />
<strong>Heat</strong>ers<br />
T<br />
k<br />
k<br />
= Tnear−heater−surf<br />
loss<br />
∆T<br />
Thot<br />
, out +∆Thot<br />
, out<br />
Tcold<br />
, out +∆Tcold<br />
, out<br />
'<br />
hot, out<br />
: Whot<br />
× ∫ Cp(<br />
P(<br />
T ), T ) dT = −0.35Qloss;<br />
∆Tcold,<br />
out<br />
: Wcold<br />
× ∫ Cp(<br />
P(<br />
T ), T ) dT = −0.<br />
65<br />
T<br />
T<br />
hot , out<br />
2005/1/5 Tokyo Institute <strong>of</strong> Technology 13<br />
cold , out<br />
Q<br />
'<br />
loss
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