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Re: Steam measure

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Posted by tm on January 20, 2011 at 13:45:15:

In Reply to: Re: Steam measure posted by tm on January 20, 2011 at 13:39:20:

Your meter transmitter must be calibrated to compensate for pressure/temperature change to reflect the differing cubic ft per pound at the lower pressure.tm

: : We have a meter that totalizes the 250 psi in lbs/hr. The steam is then reduced to 125 for the plant. Considering that the heat content is different and the volume is also, I'm curious if this effects how it's measured.

: : Does this effect the total amount of steam used?

: : Is 1 lb of 250 psi steam equal to 1 lb of 125 psi steam?

: : Since a pound of feathers and a pound of lead are the same, but that is at atmospheric pressure. Would a pound of either, at half atmospheric pressure, contain more?

: : Thank you in advance for any light you can shed.

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: Your meter transmitter must be calibrated to compensate for pressure/temperature change to reflect the differing cubic ft per pound at the lower pressure.tm : : : We have a meter that totalizes the 250 psi in lbs/hr. The steam is then reduced to 125 for the plant. Considering that the heat content is different and the volume is also, I'm curious if this effects how it's measured. : : : Does this effect the total amount of steam used? : : : Is 1 lb of 250 psi steam equal to 1 lb of 125 psi steam? : : : Since a pound of feathers and a pound of lead are the same, but that is at atmospheric pressure. Would a pound of either, at half atmospheric pressure, contain more? : : : Thank you in advance for any light you can shed.

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