ecom-
J2KN
pro
TECH
Page 9
3. 2-stage Peltier cooler
Flue gas with a temperature above the dew point is sucked spiral via
a long gas path thru a surface coated metal body with good thermal
conductivity. The gas radiates its heat to this metal body
A Peltier
element (semiconductor cooling element) flown by a continuous
current is thermally connected with this body and with a second
metal body with cooling ribs and ventilation slots. The current thru
the Peltier element creates a heat transfer from hot to cold, drains
the heat of the metal body flown by gas and transfers it to the outer
cooling body. This heat is transferred thru ventilation to the
surrounding air.
The condensation issued by the heat loss of the gas drops in a
receptacle and is pumped out by a permanent working hose pump.
The sucking capacity of the gas conveying pump avoids a sufficient
dwell time of the gas with the condensate, so that wash out reactions
(NO
2
+H
2
O > H
2
NO
3
) do not take place. At the cooler outlet the gas
has a temperature of ca. 5 °C with a relative saturation of nearly 100
% relative humidity (corresponds to a water steam content < 7 g/ m
3
).
Fan 1
Gas
cooler 1
Gas
inlet
Gas
cooler 2
Fan 2
Summary of Contents for J2KNpro Tech
Page 1: ...Operating Instructions ...