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A useful tool for HVAC engineers. This psychrometric chart use IFC-67 equation for water property calculating, and treat air as ideal gas. So this chart can be used in more large range and is more precise. Metric and english units support; Eastern and western style support; Powerful process calculating; Include thermal and adiabatic calculating for air/liquid duct. 30 days trial, free upgrade.

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Key features of Psychrometric + Duct Calculator:

  • Metric units(SI) and english units(I/P) support
  • Eastern style and western style chart support
  • Angle reference of process line ratio for enthalpy-humidity and sensible-total heat
  • Zoom in, zoom out chart by rolling mouse wheel, and pan chart by pressing middle mouse button and moving mouse
  • Chart toolbar for easily processing chart copy, export, print, pan, zoom, redraw and style selection
  • Save and load data function for each data input grid, this is convenient and not need to input data every time restart program
  • Option for saving all input data to disk before exit and load them when restarted next time
  • Copy chart to clipboard as wmf or bitmap format
  • Print function, aspect ratio can be adjust by moving chart boder
  • Moist and bulb temperature axis range can be changed
  • Ambient altitude range from 0 to 40km, ambient pressure 0~25bar
  • Point to be transformed can be drawn on chart
  • Optional chart ploting setup
  • Colors, line types, line width and font display configeration of chart elements
  • Preset and user defined chart display configeration groups select, change, add and delete
  • Precise and large internal drawing for smooth line appearance and print effect

System Requirements: 

  • 200MHz CPU, 64M RAM,10M free disk space

Psychrometric + Duct Calculator screenshot:

Product Information

  • Version: 3.0

  • Price: $98

  • Size: 5.5MB

  • License: Shareware

  • Developer: Yaode Yang

  • OS: Windows 95, 98, ME, 2000, NT, XP, Vista

  • Rating:





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