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Mass Flow Rate Through Nozzle Equation

Mass Flow Rate Formula:

\[ W = \rho \times Q \times 60 \]

lb/gal
GPM
lb/hr

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1. What is Mass Flow Rate Through Nozzle?

Definition: This calculator determines the mass flow rate of a liquid through a nozzle based on its density and volumetric flow rate.

Purpose: It helps engineers and technicians calculate the mass flow rate in hydraulic systems, spray applications, and fluid dynamics analysis.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ W = \rho \times Q \times 60 \]

Where:

Explanation: The formula converts volumetric flow rate (GPM) to mass flow rate (lb/hr) using the fluid's density.

3. Importance of Mass Flow Rate Calculation

Details: Accurate mass flow rate calculations are essential for system design, nozzle selection, and process control in fluid systems.

4. Using the Calculator

Tips: Enter the fluid density (default 8.34 lb/gal for water) and volumetric flow rate in GPM. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why multiply by 60 in the formula?
A: The factor converts minutes (from GPM) to hours (for lb/hr) since there are 60 minutes in an hour.

Q2: What's a typical density for water?
A: Water at standard conditions is approximately 8.34 lb/gal (1 g/cm³).

Q3: Can I use this for gases?
A: No, this formula is for incompressible fluids. Gases require different calculations accounting for compressibility.

Q4: How does nozzle size affect the calculation?
A: Nozzle size affects the flow rate (Q), which is an input to this calculation. The formula itself is nozzle-agnostic.

Q5: What units does this calculator use?
A: The calculator uses US customary units: pounds, gallons, and hours.

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