Air - Temperature and Volume

Air temperature and volume correction compared to Normal Air Conditions

The volume correction factor of air at higher or lower temperatures than normal air:

Air TemperatureVolume Correction Factor
(oC)(oF)
-46 -50 0.77
-40 -40 0.79
-34 -30 0.81
-28 -20 0.83
-23 -10 0.85
-18 0 0.87
-9 10 0.89
-5 20 0.91
-1 30 0.93
4 40 0.94
10 50 0.96
18 60 0.98
22 70 1.00
27 80 1.02
32 90 1.04
38 100 1.06
43 110 1.08
49 120 1.10

Example - Volume Change when Air is Heated

2 m3 of air is heated from 22oC to 43oC. The volume correction factor is 1.08 and the new volume can be calculated as

(2 m3) 1.08 = 2.16 m3

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