Dehumidification Cooling Load Calculator
Calculate dry-air-basis cooling duty and condensate rate from entered inlet/outlet temperature and humidity ratio.
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Result
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Calculation steps
Work through one step at a time or reveal the complete calculation. The steps use your current inputs.
How to calculate
Balance moist-air enthalpy on a dry-air mass basis and remove the exiting liquid-condensate enthalpy relative to 0°C water.
h=1.006T+w(2501+1.86T) kJ/kg dry air; Q=mda(hin−hout)−mcond×4.186Tout
Worked example
At 1 kg/s dry air, 30→15°C and 15→8 g/kg humidity ratio, condensate is 25.2 kg/h and cooling duty about 32.77127 kW.
Assumptions and input details
Outlet temperature and humidity ratio must not exceed inlet values. Entered states must be physically realizable; no saturation/pressure check, coil bypass factor, fan heat or actual equipment capacity is inferred. Fixed approximate heat capacities and latent-enthalpy intercept use the 0°C reference.
Using this calculator
Can I enter my own problem?
Yes. Replace the example values with your own inputs. The result, calculation steps, tables and applicable diagrams update from those inputs. Blank or invalid values clear the result; example values are never silently substituted for missing inputs.
Are the results exact?
Results use floating-point arithmetic and displayed rounding. Read the formula, assumptions and any stated data precision before interpreting the result.
Is my input uploaded?
The calculation runs in your browser. No account, file upload or external AI service is required. Inputs are not saved between page reloads.
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