Table of Contents

Abstract

Purpose/Hypothesis

Literature Review

Experimental Design


Materials/
Equipment

Test Station Construction

Procedure

Observations

Results

Statistical Analysis
Conclusions

Discussion
Sources of Error

Applications


Glossary of Terms

Acknowledgements
Bibliography

Home

Calculations

mWatt Calculation from mAmp and mVolt measurements:
mWatts were calculated using the following formula:
mWatts = mAmps X mVolts

The data collected for each rotor variable was input into an Excel spreadsheet to calculate the mean, standard deviation and coefficient of variation of the ten measurements each of wind speed, mAmps, mVolts and RPM. A shortened example of the spreadsheet is shown below,to provide the formulas used to calculate the statistics.

Tip Speed Ratio Calculations:
Additional calculations were done to calculate the Tip Speed Ratios of each rotor variable at medium and high fan speed.
Blade Tip Speed = RPM X Pi X Rotor Diameter / 60
Pi = 3.14
Tip Speed Ratio = Blade Tip Speed (m/s) /Wind Speed (m/s)
A shortened example of the Excel spreadsheet may be seen below to show the formulas used for the calculations.

Results