Psychrometer chart + Duct calculator Description

Psychrometer chart:
Range can be changed, Mouse move point calculation;
Calculate once recycle and twice recycle air flow, summer and winter state,
process line shown in chart, press UpDown button to see process changing;
Export wmf format file, can be opened and printed by image browser software
as ACDSee, IE, smoothly zoomed.

Duct calculator:
Air and liquid duct;
Calculate duct flow resistance, environmental heat exchange, and adiabatic.
Note: outer coefficient o...

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