EGK 2A Ex
12.2 Dimensions
Mounting holes
445 x 420 x Ø10 (wide x high x diameter)
12.3 Heat exchanger
12.3.1 Heat exchanger description
The energy content of the sample gas and the required cooling capacity of the gas cooler is determined by three parameters: gas
temperature
ϑ
G
, (inlet) dew point
τ
e
(moisture content) and volume flow v. The outlet dew point rises with increasing energy
content of the gas. The approved energy load from the gas is therefore determined by the tolerated rise in the dew point.
The following limits are specified for a normal standard operating point of
τ
e
= 65 °C and
ϑ
G
= 90 °C. The maximum volume flow
v
max
in Nl/h of cooled air is indicated, so after moisture has condensed.
If the values fall below
τ
e
and
ϑ
G
, the flow v
max
may be increased. For example, on the TG heat exchanger the parameter triple
τ
e
= 65 °C,
ϑ
G
= 90 °C and v = 280 Nl/h may also be used in place of
τ
e
= 50 °C,
ϑ
G
= 80 °C and v = 380 Nl/h
Please contact our experts for clarification or refer to our design program.
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Bühler Technologies GmbH
BE450020 ◦ 01/2020