Gas Molar Flux Formula:
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Definition: Gas molar flux is defined as the molar flow rate per unit cross sectional area of the gaseous component.
Purpose: This calculator helps determine the gas molar flux in mass transfer operations, particularly in packed columns and reactors.
The calculator uses the formula:
Where:
Explanation: The height of transfer unit is multiplied by the product of mass transfer coefficient, interfacial area, and pressure to determine the molar flux.
Details: Accurate calculation of gas molar flux is essential for designing efficient mass transfer equipment like absorption towers, distillation columns, and reactors.
Tips: Enter the height of transfer unit, gas phase mass transfer coefficient, interfacial area per volume, and total pressure. All values must be > 0.
Q1: What is the typical range for height of transfer unit?
A: In packed columns, HOG typically ranges from 0.3 to 1.5 meters depending on packing type and system properties.
Q2: How is the mass transfer coefficient determined?
A: KG can be determined experimentally or estimated from correlations based on system properties and flow conditions.
Q3: What affects the interfacial area in packed columns?
A: Interfacial area depends on packing type, size, shape, and the liquid and gas flow rates.
Q4: Why is pressure important in this calculation?
A: Pressure affects the driving force for mass transfer and the concentration of components in the gas phase.
Q5: Can this calculator be used for liquid-phase systems?
A: No, this specific formula is for gas-phase systems. Liquid-phase systems would use different parameters.