How do I measure how much power or electricity my thermoelectric generator can make?
- Wednesday Sep 16,2009 11:58 AM
- By diddy
- In Others
Would it be measured in volts, amps, watts…I am confused?
And how would I measure it? Would I have to buy an instrument or tool? How much would it cost thank you!
Electricity Generator, Power Generator, Thermoelectric Generator, Tool, Volts Amps Watts
2 Comments
As Bill explained you need to measure the voltage and current it can produce
for that you will need a variable load (resistor) with suitable capacity
and plot the voltage and current values on a grid paper and the peak is the maximum value, of current times volts is how many Watts = power it produces
This is what it should look like
http://www.thermoelectrics.caltech.edu/images/science-15.gif
more on the subject
http://images.google.ca/images?hl=en&q=peltier%20power%20curves&um=1&ie=UTF-8&sa=N&tab=wi
Guru
power is in watts, voltage is in volts, current is in amps.
power is equal to voltage multiplied by current.
You will need a digital multimeter and a load resistor or resistors.
You need to connect the proper load to the generator, and then measure voltage across it and current through it and calculate power as V x I.
The determination of the proper load resistor size depends on the generator and it’s projected power output, and it’s voltage output. Sorry this is so circular, but that’s the way it is.
an example.
You expect your generator to produce 10 volts and 1 amp, which is 10 watts.
By ohms law, R = E/I = 10/1 = 10 ohms. So you need a 10 ohm power resistor rated at 20 watts or more.
Then you connect the load, and measure the voltage and current to see if you get the expected values.
.
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