1. Tutorial for MATLAB based V.E.T.H. Wei Fang, Ph.D., Professor Dept. of Bio-Industrial Mechatronics Engineering National Taiwan University Last updated: 2005/5/28

2. To start  Unzip ‘veth.zip’ and copy all files to one directory, say: ‘veth’  Assign ‘current directory’ of MATLAB to that ‘veth’ directory.  Enter ‘VETH’ in the command window of MATLAB. Press ‘Enter’, 2 pop-up windows and 1 Figure window will appear.

3. 1 st pop-up window This main window deal with assigned environmental conditions. One out of 6 outdoor conditions can be selected. –First 5 conditions use default values –Last option allows user to assigned all values. User can assign V and E values with entering specific numbers.

4. 2 pop-up windows This pop-up window deals with UA calculation of a user assigned greenhouse. Various of roof type and glazing for roof and wall can be assigned.

5. 5 default conditions 1.Hot, no shading, with fan system 2.Hot, 50% shading, with fan system 3.Hot, full shading (no sun), with fan system 4.Very hot, dry, no shading, with fan system 5.Hot, no shading, with pad and fan system 6.User assigned

6. Figure for condition 1

7. Figure for condition 2

8. Figure for condition 3

9. Figure for condition 4

10. Figure for condition 5

11. Figure for condition 6

12. Family curves of Ventilating rate

13. Family curves of Evapotranspiration rate

14. Outdoor condition at T=32 o C, RH=52%

15. Indoor condition for given V=1 and E=5

16. E value is the sum of model-based values listed in 2 cells 1.Based on fogging calculation 2.Based on Evapotranspiration models Press button to invoke the model.

18. Fool proof design

19. This value is for reference only. User still need to enter the value. Evaporation generated from fogging

20. Evapotranspiration models

21. The End