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Water Flow Rate Conversion Formula:
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The GPM to kg/hr water conversion calculates the mass flow rate of water in kilograms per hour from the volumetric flow rate in gallons per minute. This conversion is essential for engineering calculations where mass flow rates are required.
The calculator uses the conversion formula:
Where:
Explanation: The conversion factor 226.796 is derived from the density of water (1 kg/L ≈ 3.785 kg/gallon) and time conversion (60 minutes/hour): 3.785 × 60 = 227.1, with precise adjustment to 226.796 for exact calculations.
Details: Converting volumetric flow to mass flow is crucial for chemical engineering, hydraulic systems, water treatment plants, and process control where mass balance calculations are required.
Tips: Enter the flow rate in gallons per minute (GPM). The value must be positive. The calculator will provide the equivalent mass flow rate in kilograms per hour.
Q1: Why convert GPM to kg/hr for water?
A: Mass flow rate (kg/hr) is often more useful than volumetric flow rate for engineering calculations, especially when dealing with energy balances, chemical reactions, or system design.
Q2: Is this conversion specific to water?
A: Yes, this conversion factor (226.796) is specific to water at standard conditions. For other fluids, the conversion factor would differ based on density.
Q3: What is the density assumption for water?
A: The calculation assumes water density of approximately 1 kg/L or 3.785 kg/gallon at standard temperature and pressure conditions.
Q4: Can this be used for any temperature?
A: The conversion is most accurate at 4°C where water density is exactly 1 kg/L. For precise applications at different temperatures, temperature correction may be needed.
Q5: What are typical GPM values for residential water systems?
A: Typical residential water flow rates range from 2-10 GPM for faucets, 1.5-3 GPM for showers, and 3-7 GPM for garden hoses.