UEB1200420
QUESTION 1
The pressure difference between an oil pipe and water pipe is measured
by a double fluid manometer as shown below. For the given fluid
heights and specific gravities, calculate the pressure difference.
Solution
PA + PW + PHg - PG + Poil = PB
PB - PA = 1000 x 9.81[(1) + (0.2 x 13.5) - (1.26 x 0.45) + (0.88 x 0.1)]
PB - PA = 1000 x 9.81 (1 + 2.7 – 0.567 + 0.088)
PB - PA = 9810 x 3.221
PB - PA = 31598.01Pa
PB - PA = 31.6KPa