Humidity ratio calculator using only temperatures

HUMIDITY RATIO CALCULATOR USING ONLY TEMPERATURES ISO

< 1.0% of vapour pressure value for ice from 0вЊ to в€’100 вЊД¬orresponding to dew-point uncertainties of:.

< 0.6% of vapour pressure value for supercooled water from 0 вЊ to в€’50 вЊ.

< 0.01% of vapour pressure value for water from 0 вЊ to 100 вЊ.

The uncertainties (coverage factor approximately k=2) of the polynomials used in the Sonntag equation are: Calculations below atmospheric pressure may also produce unexpected results, as water vapour behaves differently in vacuum conditions. The humidity calculator is designed to be used over the range of -100вЊ to +100вЊ dew-point (at atmospheric pressure), calculations outside of this range may produce unexpected results.

HUMIDITY RATIO CALCULATOR USING ONLY TEMPERATURES ISO

ISO 18453 or IGT Bulletin #8, depending on settings Moisture in Natural Gas Calculator Parameter The uncertainties using the factor outside of this range are unknown, and many of our customers measure moisture in gas mixtures other than air, so it is safer not to use this. The reason for not using water vapour enhancement factor is that this only applies to air, over a small range of pressures.

*Uses iterative solution when calculating from water vapour pressure.ДЇor water vapour pressure calculations the Sonntag equation without water vapour factor enhancement is used. The ASCE Standardized Reference Evapotranspiration Equation, ISBN: 9780784408056 Sources of formulae used in the calculator Humidity Calculator ParameterД«S1339:1, 3.2.2 Saturation vapour pressure Д«S1339:1, 3.2.10 Relationships between mixing ratio, mole ratio and vapour pressureД«S1339:1, 3.2.14 Specific enthalpy of humid gas (вЂњmoist airвЂќ)

Humidity ratio calculator using only temperatures