The tool lets you copy the generated psychrometric chart to the clipboard so you can easily paste data into other third-party applications, print the information, redraw the chart, as well as zoom in or out. What’s more, you can switch between an Eastern or Western psychrometric chart style and work with a dry bulb temperature and humidity ratio line or enthalpy and relative humidity line. Additionally, you can make the application draw specific volume, wet bulb temperature, protactor and enthalpy ruler. When you hover the mouse cursor over the chart, Psychrometric + Duct Calculator automatically records the cursor position, translates it to chart coordinate and then calculates the point state information and shows the air properties. Note: Outer coefficient of heat transfer usually 3~10, >10 when winds.You can make use of several settings for tweaking data, such as minimum and maximum humidity ratio values, minimum and maximum dry bulb temperature, environmental pressure base point, and local altitude above sea level for calculating local environmental pressure.Īdditionally, you can work with different kinds of air processing calculations, convert one point definition to another definition, as well as carry out once or twice recycle system calculations. Calculate duct flow resistance, environmental heat exchange, and adiabatic effect. Calculate air/liquid and round/rectangle cross section duct Ģ.

Chart can be easily printed, copied to clipboard as bmp and wmf format, and exported as bmp, jpg, wmf or emf format.ġ. Chart plot/display setup and management support ġ2. Point state convert calculating, and give warning and error message, output point information if point state is OK ġ1. Convenient interface for process and mix point calculating ġ0. Many process point managements, include point pick up, data input grid, point definition select, point add, insert, reduce, delete, move up and down, open and save point list Ĩ. Chart grid snap, aided constant parameter lines across cursor point, middle button pan and mouse wheel zoom for convenient chart operating ħ. Normal and eastern(China) style support Ħ. Mouse point catch, snap and calculation, output point information and many air properties ĥ. Draw protractor for enthalpy-humidity and sensible-total heat ratio Ĥ. Dry bulb temperature and humidity ratio axis range can be changed easily, the chart generation is automatic and fast ģ. Use IAPWS-IF97 equation for water/vapor properties calculating, and treat moist air as real gas for high precision Ģ. Save and load data function for each data input grid, all input data can be saved for loading next time program started.ġ. This psychrometric chart use ASHRAE equations at normal temperature and pressure region and is perfectly consistent with all ASHRAE charts of No.1~7(SI Units) and No.1~5(IP Units).īoth Metric(SI) and English(IP) units support.

A convenient, precise and powerful tool for HVAC&R engineers.

Psychrometric analysis free download