Dew Point Apparatus

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The Dew Point Apparatus is commonly used for determining vapor content of gaseous fuels by measuring their dew point temperature.

Salient Features
The apparatus has a sturdy construction.

• There is a closed stainless steel dew point chamber in the instrument containing a highly polished stainless steel "target mirror" along with sample inlet and outlet control valves.
• There is an arrangement for chilling the chamber by a refrigerant, which flows through the outer cooling jacket, thereby preventing any refrigerant contact with the test sample.
• There is a thermometer inserted into the mirror support structure, which provides the temperature of the target mirror.
• The apparatus meets the standard test specifications.

Test Method
The sample is first of all allowed to flow inside the dew point chamber.
As the sample flows in the chamber, it is deflected across the surface of the mirror.
Dew point of the sample is recorded as the temperature at which condensation collects on the mirror.
Measurement of the dew point temperature and computation of water vapor content leads to the determination of vapor content of gaseous fuels.

Applications

These are some industries where dew point apparatus is used:

• Petroleum Industry
• Petrochemical Industry
• Air Testing
• Determination of Atmospheric Dew Point
• Chemical Industry