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Search results with tag "The psychrometric chart and its use"
THE PSYCHROMETRIC CHART AND ITS USE - RSES.org
www.rses.org1 /P s Where: P 1 = Partial pressure of the water vapor at the dew point temperature of the mixture of dry air and water vapor, P s = Saturation pressure of the water vapor corresponding to the dry bulb temperature. Relative Humidity should not be confused with Specific Humidity and Absolute Humidity, which are based on the weight of
THE PSYCHROMETRIC CHART AND ITS USE - RSES
www.rses.orgBefore we start to explain the psychrometric chart, let us review a few of the principles on which it is based. First, atmospheric air is a mixture consisting of dry air and water vapor in varying relative amounts. It is best to think of dry air and water vapor separately, for they behave independently of one another.