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Water Works: The Effect of the Density of Water on the Wattage Output of an Hydroelectric Generator

CSEF · 2008 Electronics & Electromagnetics

Adam L. Berman · Tamalpais High School, Mill Valley, Marin County

Overview

Objectives/Goals I was trying to find out if a higher density liquid would create a higher electrical output when passed through an hydroelectric generator at the same rate of flow as a lower density liquid. Methods/Materials I concocted three solutions - water, water with 1/2 the maximum soluble amount of sugar, and water with the maximum soluble amount of sugar - and ran them through a homemade hydroelectric generator. Results The results show that the highest density liquid created considerably more electricity than the medium density liquid or the lower density liquid. Conclusions/Discussion There are no major outliers in the data, and the results support my hypothesis.

Summary statement

I built a hydroelectric generator and tested it's electrical output based upon the density of the liquids that I ran through it.

Help received

Borrowed Equipment from Tam High Science Department; Sister (Freshman at Harvey Mudd) helped with technical details; Cousin (Phd from Cornell) helped with density related problems.

Competition history

  • CSEF 2008 Electronics & Electromagnetics · Entry S0802

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