## How do you calculate CV of gas?

Inlet Pressure 32 kgf / cm2 Convert to absolute pressure = 33.03 kgf / cm2 (A). Outlet Pressure 15 kgf / cm2 convert to absolute pressure = 16.03 kgf / cm2 (A). Because the fluid is a gas and P P1 / 2 so we will use the formula. Cv = (48000 / (248 33.03)) x sqrt (0.86 x (273 240)).

### What is LPM in flow rate?

LPM is an abbreviation of litres per minute (l/min). When used in the context of a particle counter’s flow rate, it is a measurement of the velocity at which air flows into the sample probe. For example, a flow rate of 2.83 LPM means the particle counter will sample 2.83 litres of air per minute.

#### What is the relationship between flow rate and pressure?

Bernoulli’s equation states mathematically that if a fluid is flowing through a tube and the tube diameter decreases, then the velocity of the fluid increases, the pressure decreases, and the mass flow (and therefore volumetric flow) remains constant so long as the air density is constant.

**Does pressure drop affect flow rate?**

Under laminar flow conditions, pressure drop is proportional to volumetric flow rate. At double the flow rate, there is double the pressure drop. Under turbulent flow conditions, pressure drop increases as the square of the volumetric flow rate. Pressure drop increases as gas viscosity increases.

**What is the difference between water pressure and flow rate?**

An easy way to describe it would be, water flow is how MUCH water flows down a faucet, and water pressure is how HARD the water falls down the faucet. Both water pressure and water flow are related to friction.