1. What is Mass Flow Rate Conversion?

Definition: This calculator converts volumetric flow rate (gallons per minute) to mass flow rate (pounds per hour) using fluid density.

Purpose: Essential for engineers and technicians working with fluid systems where mass flow measurements are required.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( W \) — Mass flow rate (lb/hr)
• \( Q \) — Volumetric flow rate (GPM)
• \( \rho \) — Fluid density (lb/gal)
• 60 — Conversion factor (minutes to hours)

Explanation: The volumetric flow is multiplied by density to get mass per minute, then converted to hours.

3. Importance of Mass Flow Calculation

Details: Mass flow measurements are critical for accurate material balance, process control, and equipment sizing in fluid systems.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why convert to mass flow rate?
A: Mass flow remains constant regardless of temperature/pressure changes, unlike volumetric flow.

Q2: What's the density of water?
A: Water is approximately 8.34 lb/gal at room temperature.

Q3: How does temperature affect this calculation?
A: Higher temperatures typically decrease density. Use the correct density for your operating conditions.

Q4: Can I use this for gases?
A: No, this is designed for liquids. Gas calculations require different approaches.

Q5: What if my flow is in different units?
A: Convert to GPM first or modify the formula with appropriate conversion factors.