![]() Specific heat of Water Vapor - H2O - at temperatures ranging 175 - 6000 K.The first thing to do here is to pick a temperature that can be considered room temperature. Saturated Salt Solutions - Controlling Air HumidityĪ salt solutions can be used maintain a particular value of relative humidity. Specific volume of moist air is defined as the total volume of humid air per mass unit of dry air Water Content and Temperatureĭensity of the mix of dry air and water vapor - moist humid air. The pressure in a mixture of dry air and water vapor - humid or moist air - can be estimated by using Daltons Law of partial pressures.ĭensity of moist air vs. Moist Air - Daltons Law of Partial Pressure Thermodynamic properties of dry air - specific heat, ratio of specific heats, dynamic viscosity, thermal conductivity, Prandtl number, density and kinematic viscosity at temperatures ranging 175 - 1900 K.Ĭlassification of heat recovery efficiencies - temperature efficiency, moisture efficiency and enthalpy efficiency - online heat exchanger efficiency calculator. SI and Imperial units.ĭry Air - Thermodynamic and Physical Properties Temperature and Pressureįigures and tables withdry air thermal diffusivity vs. SI and imperial units.Īir - Thermal Diffusivity vs. The density (mass/volume) of water vapor is 0.804g/litre, which is significantly less than that of dry air at 1.27g/litre at STP. This variability in water vapor is part of our everyday experience as it affects the ability of sweat to evaporate and the drying rate of clothes on a line. Water vapor mixing ratios in the atmosphere are highly variable (10-6-10-2 mol/mol). Online calculator with figures and tables showing air thermal conductivity vs. The mixing ratios in Table 1-1 are for dry air, excluding water vapor. Pressure at Constant Temperatureįigures and tables with isobaric (Cp) and isochoric (Cv) specific heat of air at constant temperature and pressure ranging 0.01 to 10000 bara.Īir - Thermal Conductivity vs. An air phase diagram included.Īir - Specific Heat vs. Properties of air change along the boiling and condensation curves (temperature and pressure between triple point and critical point conditions). temperature and pressure.Īir - Properties at Gas-Liquid Equilibrium Conditions The moisture holding capacity of air increases with temperature. Online calculator, figures and tables with dynamic (absolute) and kinematic viscosity for air at temperatures ranging -100 to 1600☌ (-150 to 2900☏) and at pressures ranging 1 to 10 000 bara (14.5 - 145000 psia) - SI and Imperial Units.Īir - Moisture Holding Capacity vs. Online calculator, figures and tables showing density, specific weight and thermal expansion coefficients of air at temperatures ranging -100 to 1600 ☌ (-140 to 2900 ☏) at atmospheric and higher pressure - Imperial and SI Units.Īir - Diffusion Coefficients of Gases in Excess of Airĭiffusion coefficients (D 12) for gases in large excess of air at temperatures ranging 0 - 400 ☌. Pressure and TemperaturesĪir density at pressure ranging 1 to 10 000 bara (14.5 - 145000 psi) and constant selected temperatures.Īir - Density, Specific Weight and Thermal Expansion Coefficient vs. Moist and humid air - psychrometric charts, Mollier diagrams, air-condition temperatures and absolute and relative humidity and moisture content.ĭry air is a mechanical mixture of nitrogen, oxygen, argon and several other gases in minor amounts.Īir - Density vs.
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