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Moisture Holding Capacity of Air

Moisture holding capacity of air increases with temperature

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The moisture holding capacity of air increases dramatically with increased temperature as indicated in the diagrams below.

Air Moisture Holding Capacity - SI Units

Moisture holding capacity of air - kg water per kg dry air:

Air - moisture holding capacity - SI units

Air Moisture Holding Capacity - Imperial Units

Moisture holding capacity of air - lb water per lb dry air:

Air - moisture holding capacity - Imperial units

Moisture holding capacity of air - lb water per 1000 cubic feet dry air:

Air - moisture holding capacity - Imperial units

Note - the moisture holding capacity of air at 100oF (38 oC) is 10 times the moisture holding capacity of air at 30oF (~ 0 oC). This is a very important observation - especially when working with drying processes where air is used to transport moisture away from process and products.

In general

  • it is in general good energy economy to increase the air temperature in a dryer as much as possible! - the increased moisture transport capacity of air at higher temperature out-weights the increased energy-consumption for heating the dry air to higher temperature!
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Related Topics

Related Documents

Tag Search

  • en: air moisture capacity temperature
  • es: la humedad del aire de temperatura capacidad
  • de: Luftfeuchtigkeitskapazität Temperatur
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