The Collegiate Student
Hydration Device
By:Alexander Genaille, William B.
Nichols, Kari Osborne, and William
Calain Schuman.
Purpose

The purpose of the CSHD to
dispense refreshing liquid into a
funnel to allow for rapid
consumption.
Project Overview

Step 1:


A golf ball is released upon the ramp.
Gravity acts upon it, and the golf ball
rolls into a block with a mounted razor
blade.
Project Overview

Step 2

The razor blade then cuts through a
string, tied to the bottom of a platform.
Project Overview

Step 3

The platform,
which is
holding the
beverage, tilts
downward,
dispensing the
beverage into
the funnel.
Energy Conversions and Forces

Golf ball


The gravitational potential energy of
the golf ball is changed into kinetic
energy when the ball is released.
mgh = 1/2 mv2
Energy Conversions and Forces

Blade




The kinetic energy from the golf ball is
transferred to the block holding the
razor blade.
m1v1 = m(1+2)v(1+2)’ + Eloss
Energy loss is due to friction on the
block.
The collision is assumed to be perfectly
inelastic.
Energy Conversions and Forces

Tension and Gravity on the
beverage.


T = mg
The tension in the string is equal to the
mass of the can times the force of
gravity. The pivot hinge is located
exactly in the center of the system, in
between the tension and mass.
Velocity of the Beverage


The beverage is then dispensed into
the funnel, providing refreshment to
whatever student chooses to
indulge. The velocity of the
beverage is equal to:
mgh beverage=½mv2 beverage
Efficiency

The CSHD is fun, but inefficient. It
would require much less energy for
a person to lift the beverage to their
mouth and take their time drinking
it.
Conclusion

The CSHD is a good conversation
starter, party object, and performs
the said task, but is ultimately
inefficient.
Mmmm
mmmm……