kpa = kilopascals is a measure of pressure.
cfm = cubic feet per minte is a measure of the rate of flow.
The two measure different things and, according to the basic rules of dimensional analysis, conversion from one to the other is not valid.
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To convert kilopascals (kPa) to cubic feet per minute (CFM), you need to know the flow rate of the gas or air in question and the pressure in kPa. The specific conversion factor will depend on the specific gas being used, its temperature, and other factors. You may need to consult engineering tables or use online conversion tools to perform an accurate conversion.
You need to know the area of the duct or pipe in square feet.
C.f.m. is cubic feet per minute (quantity) and f.p.m. is feet per minute (velocity).
Qcfm= velocityfpm x areasq.ft.
To convert kilopascals (kPa) to bar gauge (barg), subtract the atmospheric pressure (typically around 101.3 kPa) from the given pressure. In this case, 345 kPa - 101.3 kPa = 243.7 kPa absolute. Then, convert the absolute pressure to barg by dividing by 100, as 1 bar = 100 kPa. Therefore, 243.7 kPa / 100 = 2.437 barg.
To convert kPa to mmHg, you can use the conversion factor: 1 kPa = 7.5 mmHg. Simply multiply the pressure in kPa by 7.5 to get the equivalent in mmHg.
1.09 kPa is equivalent to 8.175 mmHg.
The correct pressure in kPa would be 104.4 kPa. To convert mmHg to kPa, you can use the conversion factor: 1 mmHg = 0.133322 kPa. So, 783.0 mmHg * 0.133322 kPa/mmHg = 104.4 kPa.
To convert mmHg to kPa, multiply by 0.133322. So, 345 mmHg is equivalent to 45.99 kPa.