Moisture Removed by Grain Depression
Water-removal rate (lb/hr, pints/hr) and total water over the run from a dehumidifier's measured inlet/outlet grain depression and process airflow - an in-situ performance check.
Formula and source
dG = inlet_GPP - outlet_GPP; mass-air = CFM*60/13.33 lb-dry-air/hr; water lb/hr = mass-air * dG / 7000 (7000 grains/lb); gal = lb/hr * hours / 8.345.
First-principles psychrometric mass balance (7000 grains/lb; ~13.33 ft3/lb dry air); IICRC S500 grain-depression field method, by name.
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