Valve Sizing
Valve Sizing
(OP)
What is the actual difference between thermal expansion and fire case ?
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RE: Valve Sizing
David Simpson, PE
MuleShoe Engineering
Law is the common force organized to act as an obstacle of injustice Frédéric Bastiat
RE: Valve Sizing
In my opinion, Liquid thermal expansion is a condition resulted from direct solar radiation contact while the segment is blocked. Usually the expected temp from solar heating is up to 70 oC only (so the P increase and relied flow will correspond to volume increase of your liquid from its temp to approximately 70 Deg C).
For fire case, your blocked segment is exposed to fire. Hence, the limit of heating is the flame emissive power being exposed to the segment (depends on the fuel), area being exposed to fire, etc.