Home
Back
Differential Pressure Equation:
| From: | To: |
Differential pressure (DP) is the difference in pressure between two points in a fluid system. It's calculated using the formula DP = ρ × g × h, where ρ is fluid density, g is gravitational acceleration, and h is the height difference.
The calculator uses the differential pressure equation:
Where:
Explanation: This equation calculates the pressure difference caused by a column of fluid of height h, considering the fluid's density and the gravitational force acting on it.
Details: Differential pressure calculations are essential in various engineering applications, including fluid dynamics, HVAC systems, filtration systems, and hydraulic engineering. Accurate DP measurement helps in system monitoring, troubleshooting, and optimization.
Tips: Enter fluid density in kg/m³, gravitational acceleration in m/s² (9.81 m/s² on Earth), and height difference in meters. All values must be positive numbers.
Q1: What units should I use for the inputs?
A: Use kg/m³ for density, m/s² for gravity, and meters for height to get results in Pascals (Pa).
Q2: Can I use this for gases as well as liquids?
A: Yes, the formula works for both gases and liquids, but note that gas density can vary significantly with pressure and temperature.
Q3: What is the standard value for gravitational acceleration?
A: On Earth's surface, the standard value is approximately 9.81 m/s², though it varies slightly with location and altitude.
Q4: How does temperature affect the calculation?
A: Temperature affects fluid density. For accurate results, use density values at the actual temperature of the fluid.
Q5: Can this formula be used for inclined columns?
A: For inclined columns, use the vertical height component (h) rather than the length of the inclined column.