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Re: TO Double D post# 21129

Tuesday, 12/06/2016 10:24:11 AM

Tuesday, December 06, 2016 10:24:11 AM

Post# of 113538
Something doesn't make sense to me in that article. They clearly describe how they define the energy efficiency rate (which is what I expected), but they don't define how they are using the term Power Factor.

From my electrical engineering education, power factor was the cosine of the angle of real power divided by the apparent power which was caused by reactive power. Reactive power is the power consumed in the creation and destruction of magnetic fields as a result of alternating current and measured in KVAr (Kilo Volt Amps reactive). The smaller the angle, the higher the power factor and lower reactive power. But the range of power factor is -1.0 to +1.0.

So how do they determine a power factor of 106? What does that mean?

Additionally all of those are a function of AC electrical power. But thermoelectic generators create DC electrical power. So the reactive load would be a function of the conversion of DC to AC if needed (for example automobiles may not require this as they are primarily DC systems).

So either I misunderstand something or the article is missing something.
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