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Mass Flow Rate Formula:
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Mass flow rate is the mass of a substance that passes per unit of time. Its unit is kilogram per second in SI units. It represents the amount of mass flowing through a given cross-sectional area per unit time.
The calculator uses the mass flow rate formula:
Where:
Explanation: The formula calculates the total mass flow rate by multiplying the mass flux by the total flow area, which is determined by the number of tubes, tube spacing, and crack height.
Details: Accurate mass flow rate calculation is crucial for system design, process optimization, energy efficiency analysis, and ensuring proper operation of heat exchangers and fluid systems.
Tips: Enter mass flux in kg/s·m², number of tubes as a whole number, distance between tubes in meters, and height of crack in meters. All values must be positive numbers.
Q1: What is the difference between mass flow rate and volumetric flow rate?
A: Mass flow rate measures mass per unit time (kg/s), while volumetric flow rate measures volume per unit time (m³/s). They are related by fluid density.
Q2: When is this formula typically used?
A: This formula is commonly used in heat exchanger design, fluid mechanics calculations, and systems involving multiple parallel flow paths.
Q3: What factors affect mass flux?
A: Mass flux is affected by fluid properties, flow velocity, pressure differential, and temperature conditions in the system.
Q4: How does tube spacing affect mass flow rate?
A: Larger tube spacing increases the flow area between tubes, which can increase the total mass flow rate for a given mass flux.
Q5: What are typical units for mass flux?
A: Mass flux is typically measured in kg/s·m² (SI units) or lb/s·ft² (imperial units).