Thought question 25: What is dew point detection in pressure vessels, and how is it carried out?

2019-09-21View Original

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Thought question 25: What is dew point detection in pressure vessels, and how is it carried out?

Reply #22019-09-22

The temperature at which droplets form due to condensation occurs after gas-phase cooling reaches saturation, and this is measured using a dew point meter.

Reply #32019-09-22

The temperature at which liquid droplets form upon saturation due to gas-phase cooling is measured using a dew point meter

Reply #42019-12-27

The dew point is measured in °C and is related to air humidity; the lower the air humidity, the lower the dew point. Online testing is generally carried out using a handheld dew point meter. For example, in accordance with the requirements of GB/T26978.5, before pre-cooling, the dew point in the interior space of large LNG storage tanks must reach -20°C, while the dew point in the annular space must reach -8°C℃

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