![]() Air - Diffusion Coefficients of Gases in Excess of Airĭiffusion coefficients (D 12) for gases in large excess of air at temperatures ranging 0 - 400 ☌. 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. Air - Density, Specific Weight and Thermal Expansion Coefficient vs. Pressure and TemperaturesĪir density at pressure ranging 1 to 10 000 bara (14.5 - 145000 psi) and constant selected temperatures. Altitudeĭensity and specific volume of air varies with elevation above sea level. Air - Composition and Molecular Weightĭry air is a mechanical mixture of nitrogen, oxygen, argon and several other gases in minor amounts. You can revoke your consent at any time.Absolute humidity is the actual mass of water vapor present in the air water vapor mixture. Please note that based on your settings, not all functions of the site may be available anymore. In particular, you can decide whether or not to give your consent to the transfer of data to the USA (by selecting the ""Analytics"", ""Google Maps"" or ""Youtube"" sliders). You can specify which cookies may be used by selecting the respective slider in the cookie settings. authorities for control and monitoring purposes and that no effective legal remedies are available against this. In particular, there is a risk that your data may be subject to access by U.S. The USA is not accorded an adequate level of data protection by the European Court of Justice. When using web analytics, Google Maps or Youtube, your data is processed in the USA. We use cookies (including third-party cookies) and other tracking technologies to customize the website to your needs or to offer you special features such as the integration of maps and video material by Google Maps and Youtube. The E+E Humidity Calculator is accessible on. ![]() A click on the Reset button clears all calculations and restores the initial list of measurands. The computation results can be exported as PDF or Excel files and also sent via e-mail. Users can adapt the list of calculated physical quantities to suit their own needs by displaying or hiding individual lines. For example, the measurement units of the physical quantities can be converted from SI to the US system of units with just one click, or individually defined for each physical quantity. The E+E Humidity Calculator is easy and intuitive in use, and it offers a rich set of useful features. This makes it easy to determine the change in dew point temperature in relation to the gas pressure. In addition to calculating the humidity, the E+E Humidity Calculator features a separate calculation mode for computing the dew point in compressed air systems. The formulae for conversion, including computing the uncertainty, are based on the common humidity theories and have been validated by the accredited E+E Elektronik calibration laboratory. For realistic calculations, air and 10 other gases (including argon, CO 2, helium, and methane) can be selected as the carrier medium. In addition to computing and converting physical humidity quantities, the E+E Humidity Calculator can also be used to simulate the behaviour of the humidity values as pressure and temperature conditions change. A significant difference to other humidity calculators is that the E+E Humidity Calculator also takes the measurement uncertainty into account and therefore ensures particularly practical results. Humidity calculation including measurement uncertaintyīased on three known physical quantities (pressure, temperature, and a humidity measurand), the E+E Humidity Calculator computes up to 15 humidity-related parameters such as the dew point, frost point, absolute humidity, enthalpy, etc.
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