Drying-Equipment Sensible Heat Load and Ventilation

Turns the air movers, dehumidifiers, and scrubbers running in a drying chamber into the sensible heat they dump (3.412 BTU/hr per watt) and the ventilation needed to hold a target temperature rise (the 1.08 sensible relation): the heat load, the makeup cfm to cap the rise, and the rise an entered exhaust airflow actually delivers. An overheated chamber leaves the efficient-evaporation band. Envelope losses and the building HVAC govern; this is a screen. IICRC S500 names the band.

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Formula and source

sensible_btu_hr = total_equipment_watts x 3.412; required_cfm = sensible_btu_hr / (1.08 x target_temp_rise_f); temp_rise_at_exhaust = exhaust_cfm > 0 ? sensible_btu_hr / (1.08 x exhaust_cfm) : null.

Watt-to-heat conversion (3.412 BTU/hr per watt) and the 1.08 standard-air sensible-heat relation, by name; ANSI/IICRC S500. Field-arithmetic identities, not edition-bound.

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