A Friend Today We'll Talk About Absolute Pressure Formula, By Instant Solution
Absolute Pressure Formula (pabs)
Pabs=Patm+Pgauge
where the Pgauge is gauge pressure and Patm is atmospheric pressure.
The vacuum pressure is articulated as,
Vacuum Pressure=Atmospheric Pressure-Absolute Pressure
At sea level, it's around fourteen. seven pounds per sq in
Let’s see some examples of absolute pressure: Solved Examples
Problem 1: A pressure gauge measures the Pgauge reading as thirty-one psi. If the atmospheric pressure is 14.2 psi. reckon absolutely the absolute pressure that corresponds to measure Pgauge reading.
Answer:
Given: Patm (Atmospheric pressure) = 31 psi
Pgauge (Gauge pressure) = 14.2 psi
Absolute pressure (pabs) = Patm + Pgauge
= 31 psi + 14.2 psi
= 45.2 psi
Problem 2: The psia pressure instrument gives the reading 35.8 psi. If the air pressure is fifteen psi, calculate the corresponding gauge pressure.
Answer:
Given: Atmospheric pressure Patm = 15 psi
Absolute pressure Pabs = 35.8 psi
The Gauge pressure is
Pgauge = 35.8 psi – 15 psi
= 20.8 psi.
Diagram showing absolute pressure, vacuum, and gauge
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