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Convective Mass Transfer Coefficient Definition

Calculates the mass flux of a species evaporating or absorbing between an interface and a moving fluid using the convective mass-transfer coefficient and ideal-gas concentration difference.

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1. Define Input Parameters

2. Engineering Output

Absolute temperature (T_abs)
- K
Partial-pressure difference (Delta_p)
- kPa
Concentration difference (Delta_C)
- kg/m³
Mass flux (J)
- kg m⁻² s⁻¹
Hourly mass flux (J_h)
- kg m⁻² h⁻¹

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Context & Assumptions

This calculator is used in process engineering to estimate evaporation or absorption rates for designing cooling towers, humidifiers, drying systems, and gas-scrubbing columns. It converts partial-pressure differences into mass flux using the ideal-gas law and the convective mass-transfer coefficient.

Understand the Engineering Principles

Review the step-by-step derivations, typical industrial limits, and scale-up rules.

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