Nomograph for moist-air properties

Gandhidasan j I When engineers need to evaluate the values of moist-air properties, they generally refer to psychrometric charts or tables. [Pg.11]

However, reading a chart can be difficult and time-consuming, and using tables often requires double interpolation. [Pg.11]

The nomograph presented here can be used to estimate several moist-air properties at a glance, if any two pieces of information are known. Standard atmospheric pressure is assumed. [Pg.11]

To use the figure, simply connect the two points representing the known quantities, and read the values of the other properties directly from the nomograph. [Pg.11]

An air sample has a dry-bulb temperature of 95°F (35°C) and a wet-bulb temperature of 80°F (26.7°C). Determine the relative humidity, the dew-point temperature, the humidity ratio and the vapor pressure. [Pg.11]

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