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Pressure Equation:
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The manometer pressure equation \( P = \rho g h \) calculates gas supply pressure based on the height difference of a fluid column. This fundamental physics principle is used to measure pressure differences in various engineering and scientific applications.
The calculator uses the manometer equation:
Where:
Explanation: The equation calculates the pressure exerted by a fluid column based on its density, gravitational force, and height difference.
Details: Accurate pressure measurement is crucial for gas supply systems, HVAC applications, industrial processes, and laboratory experiments to ensure proper system operation and safety.
Tips: Enter fluid density in kg/m³ (water ≈ 1000 kg/m³, mercury ≈ 13590 kg/m³), gravitational acceleration in m/s² (standard is 9.81 m/s²), and height difference in meters. All values must be positive.
Q1: What types of manometers use this equation?
A: This equation applies to U-tube manometers, inclined manometers, and well-type manometers used for gas pressure measurement.
Q2: How does temperature affect the calculation?
A: Temperature affects fluid density. For precise measurements, use density values at the actual temperature or apply temperature correction factors.
Q3: Can this calculate differential pressure?
A: Yes, the height difference (h) represents the differential height between two fluid columns, giving the pressure difference between two points.
Q4: What are common manometer fluids?
A: Water, mercury, and oil are commonly used. Each has different density properties affecting the measurement sensitivity.
Q5: How accurate is manometer pressure measurement?
A: Manometers provide high accuracy when properly calibrated and used with precise fluid density values and height measurements.