Psi’s-14.696
psia to psig psig - 15 15 - 15= 0 psig
psia=psig+atmospheric pressure where, atmospheric pressure = 14.7psi therefore psig=psia-atmospheric pressure psig=100-14.7 psig=85.3psig
70 psig
psig
0.5 psig is equivalent to 13.8 inches of water column.
55 psig +15=70
50 psig is equivalent to 64.7 psi. To convert psig to psi, you simply add the atmospheric pressure at sea level, which is about 14.7 psi.
To find the pressure at the inlet of the evaporator, you subtract the pressure drop from the low side pressure. Given a low side pressure of 15 psig and a pressure drop of 10 psig, the inlet pressure would be 15 psig - 10 psig = 5 psig. Therefore, the pressure at the inlet of the evaporator is 5 psig.
PSIG refers to pound/force per square inch gauge, while PSI measures the pressure relative to a vacuum. If you want to convert a figure from PSIG to PSI, you would need to add 14.7psi to your PSIG figure, which will give you your PSIA result.
10 psig
PSIG, or pounds per square inch gauge, measures pressure relative to atmospheric pressure. To calculate PSIG, you start with the absolute pressure reading (in PSIA) and subtract the atmospheric pressure (usually around 14.7 psi at sea level). The formula is: PSIG = PSIA - Atmospheric Pressure. If you have a pressure gauge that directly measures PSIG, it provides the gauge pressure without the need for calculations.
To convert psig (pounds per square inch gauge) to psia (pounds per square inch absolute), you need to add the atmospheric pressure to the psig value. Atmospheric pressure is typically about 14.7 psi at sea level. Therefore, the formula is: psia = psig + 14.7 psi. For example, if you have 30 psig, the conversion to psia would be 30 + 14.7 = 44.7 psia.