Presentation on theme: "Tutorial for Psyc0226 Wei Fang, Ph.D., Professor Dept. of Bio-Industrial Mechatronics Engineering National Taiwan University Software last updated: 2002/02/26."— Presentation transcript:
Tutorial for Psyc0226 Wei Fang, Ph.D., Professor Dept. of Bio-Industrial Mechatronics Engineering National Taiwan University Software last updated: 2002/02/26 Tutorial last updated: 2003/11/28
Capability of Psyc0226 Allow alteration on atmospheric pressure Provide handy PsyTables Totally 11 tables are available Provide PsyCharts State calculation: besides AtmP, values of 2 independent states are required to calculate others Process calculation: find differences between 2 states More process calculation: Evaporative cooling Vapor pressure deficit on leaf
Abbreviations of thermodynamic properties of moist air used in Psyc0226 1. Tdb: dry bulb Temp. 2. RH : relative humidity 3. Twb: Wet bulb Temp. 4. Tdp: dew point Temp. 5. AH : absolute humidity 6. SV : specific volume 7. Hfg: Saturated 8. DOS: degree of Saturation 9. Pws: saturated vapor pressure 10. Pw: vapor pressure More message of the selected cell
VPD/AHD of air VPD =Pw@Twb – Pw@Tdb AHD =Sat.AH@Twb – Sat.AH@Tdp
Psycharts Besides atmospheric pressure, values of 2 independent states are required to derive others find differences between 2 states Evaporative cooling process calculation Vapor pressure deficit on leaf
Use mouse to define 2 states 1.To define 2nd state, change from Inactive to Active first. 2.Click in the Psychart window at the selected state or click on the crosshair region to move along constant lines or curves. 3.Click on Cal. to calculate the difference.
Labels in Psychart window can be hidden by de-select the Unit label icon
The state user defined in the psychart window using left button of the mouse will be placed in the center of the psychart window if the Centralize icon was selected. This option is set inactive by default.
Enjoy playing with Digital Psychart Please send us information regarding found bugs. Mail to : firstname.lastname@example.org@ntu.edu.tw