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Human vs. Toaster: Proof That Pedal-Power Is Not the Next Sustainable Energy Solution
Your 52" tv, Playstation, blueray player, aquarium with light and bubbles, laptop, printer, tablet, phone, mp3 player, fitbit, e-reader, 3 desk lamps, two overhead lights, light up Elvis statue with "hunk of burnin' love" motion, and the camera you have cleverly concealed in your bedroom hamper use less energy combined than a toaster.
Does anyone even use an editor or proofread anymore? Have we we become that dependent on spellcheck? Bicycles have "pedals".
First, without showing technical data of experiment equipment it cannot be stated that "Proof That Pedal-Power Is Not the Next Sustainable Energy Solution". Video edition allows anything.
Pedal energy is a real solution for a cleaner world. For example, use a bicycle, not a car.
This experiment is bad done, because:
1º An olimpic cyclist can generate 1.900W of real power, not only 700W. In this experiment, the gear ratio is wrong adjusted. For maximun pedal power, the cadence of cyclist must be faster:http://eltiodelmazo.com/2014/04/02/vatios-de-potencia-en-el-ciclismo-quienes-son-los-que-mas-vatios-generan/
2º The efficiency of that toaster is very bad. A good designed toaster for pedal power can toast whith half the power or less, so anyone could toast whith his power
My favorite was the design 'concept' that combined an e-bike share program with imitation solar 'tree' leaves and a bus system. People would ride around and charge the bikes and then feed the power back into the buses so they could go farther. The renderings were very beautiful.
I am curious to know if this was a single-gear scenario.
what kind of inverter losses are we to consider? Also, you could have toasted 2 slices since both sides of the toaster are heated by the element.
I am not sure about this. In theory you could use both sides, but in reality I think the toast absorbs the heat energy from the element. Adding toast would add more energy required. Currently the toaster is lined with a reflector as to reflect the radiant heat back toward the toast and not lose as much.
Christopher - the toaster uses 700W whether it has zero, one or two slices in it. The electrical power dissipates the power in the resistance of the element - there is no feedback to reduce that power whether you had the toaster in a totally insulated box, or whether you had the naked element in free space.