Reply #38: Oh please lets not go to flow calcs [View All]

[FreakinDJ]

I would have to break out my laptop and use the EA

I wrote a little Work Book for Instrument Techs a while back

Fluid Properties

Temperature
Pressure
Density and Fluid Expansion
Type of Flow
Inside Pipe Diameter
Viscosity
Reynolds Number and Velocity Profile
Hydraulic Phenomena

Pressure = ratio of Force over Area (P=F/A)
Density = ratio of Mass over Volume (p=m/V)
Specific Gravity = ratio of operating density to water (SG = P liquid / P water)

Fluid Expansion is -
V = Vo (1+B x (Delta Temp))
V = New Volume
Vo = Old Volume
B = Cubic coefficient of expansion
Delta Temp = temperature change

Boyle’s Law – The Volume of an Ideal Gas at constant Temperature varies inversely with Absolute Pressure V = K/P

Charle’s Law – The Volume of an Ideal Gas at constant Pressure varies directly with Absolute Temperature V = K x T

Ideal Gas Law – the combination Boyle’s and Charle’s Law
PV = n R T