![]() The SOFTWARE and documentation have been copyrighted by North Carolina State University (NCSU) and are protected by United States Copyright Law from unauthorized duplication. Phil Mitchell Wood Products Extension, NC State Extension ‐ © 2023 NC State Universityįor more information on this spreadsheet application, see the article Calculating the Equilibrium Moisture Content for Wood based on Humidity Measurements. Used to fit the tabulated EMC data and generate the coefficients used by the sorption equation "give estimatesĬlose to but not exactly the same as those in the tables."ĭr. As pointed out in the Dry Kiln Operator's Manual (page 40), the least square regression The larger errors occur at the higher dry-bulb temperatures Over the range ofĭry-bulb temperatures 35☏ - 180☏ and relative humidities ranging from approximately 20% to 80%, theĬalculated EMC differs from the tabulated EMC by no more than 0.5% EMC, and in the majority of instancesĭiffers by no more than 0.2% EMC. Generally, there is good agreement between the calculated EMC from the "EMC Calculate" spreadsheet results and the EMC tables published in the USDA Dry Kiln Operator's Manual. or Dew-point temperature and dry-bulb temperature.Wet-bulb temperature and dry-bulb temperature.Relative humidity and dry-bulb temperature.This tool will calculate an estimate of the EMC based on one of the following pairs of data: The moisture content of the wood in that environment will approach the EMC of the air. Surrounding air will establish equilibrium moisture content ( EMC) conditions, and The temperature and relative humidity of the If given enough time, the moisture content of wood will come to an equilibrium ![]() Equilibrium Moisture Content Calculator About This Calculator
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