Wet Steam table.
Wet Steam table.
(OP)
If we have saturated steam at 97 % quality. If we are measuring a temperature 2 degrees lower than the saturated temperature. What could cause that? We are measuring the pressure and the temperature.
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RE: Wet Steam table.
RE: Wet Steam table.
RE: Wet Steam table.
What is the accuracy of your temperature sensor/transmitter combination? Thermal effect? What about the pressure transmitter? At what temperature and pressure were they calibrated? What was the accuracy of the calibration standard? Do you have a calibration report?
What pressure/temperature steam are you working with? If 1000°F, being off by 2°F is trivial considering you are working with two sensors that both have error bands.
Is your temperature sensor insertion well insulated the same as the rest of the pipe or vessel? Your sensor probe may be conducting heat to the surroundings. Is the vessel well-insulated? The probe may be radiating to the vessel wall.
Lots of possibilites.
Good on ya,
Goober Dave
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RE: Wet Steam table.
RE: Wet Steam table.
rmw
RE: Wet Steam table.
RE: Wet Steam table.
RE: Wet Steam table.
Zero flow velocity? are you sure that there is never any water in the lines?
This is a sensor issue.
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Plymouth Tube
RE: Wet Steam table.
rmw
RE: Wet Steam table.
RE: Wet Steam table.
I guess the OP is steamed from the comments.
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com