Specifications
6
procedures the enclosure for the electronics will be a very simple most likely plastic box
to just prevent direct water contact during testing. Since cost and time is a factor in this
project design of an enclosure and no finished product is being shipped to consumers a
simple barrier preventing direct water exposure will be satisfactory per our design
specifications.
2.2.9 Display
In today‟s day and age it is not enough to say that the designed power generator is
making energy just by being outside people want to see proof. That is why as part of the
design an LCD screen was included. Even if there is no breeze during a sunny day and
the generator looks as though it is doing nothing looking at the LCD screen will show
that there is some kind of activity coming from the generator. It is also very useful to be
able to look at a screen and be able to find out how much power is left in a system if a
user knows that they are going to need to use it at a later time.
3 Requirements
3.1 Input Power
In order to power the basic essentials for a typical classroom during a power outage,
some method of power generation must be used.
Power should be simultaneously generated using a solar cell array and a wind
turbine
The solar panel should produce a minimum of 100 W.
The wind turbine should produce a minimum of 200 W.
The solar cell array should weigh no more than 20 lbs.
The wind turbine should weigh no more than 30 lbs.
The solar panels should output a DC voltage.
The wind turbine should output a DC voltage.
3.2 Output Power
To make the power generated by the system useful, some popular forms of power will
need to be generated and made available via their typical connections or outlets.
The system should provide a standard 12 VDC output via a cigarette lighter
outlet
The system should provide a standard 5 VDC output via a USB connection
The system should provide a standard 120 VAC 60 Hz output via a standard wall
socket
The system should incorporate the correct fuses and/or circuit breakers for each
particular power output type
The system should be capable of supplying power form all power sources
simultaneously
The system should use a pure sine wave inverter for the 12 VDC to 120 VAC
conversion process.