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To: Free Vulcan

writer needs to read up the difference between kW & kWh.


9 posted on 05/05/2011 8:06:10 AM PDT by Christian Engineer Mass (25ish Cambridge MA grad student. Many conservative Christians my age out there? __ Click my name)
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To: Christian Engineer Mass
writer needs to read up the difference between kW & kWh

Would you point to the mistake? I haven't found it and I certainly understand the difference.

14 posted on 05/05/2011 8:14:23 AM PDT by thackney (life is fragile, handle with prayer (biblein90days.org))
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To: Christian Engineer Mass
writer needs to read up the difference between kW & kWh.

Am I missing something? I don't see the error on that point.

The only references to kWh are contained in the paragraph regarding the 25 kWh output observed versus the equivalent amount of oil needed to do the same. The device being tested was supposedly producing power at a rate of 4700 watts for some unspecified period of time. If the experiment ran for around 5 hours and 20 minutes, a steady 4700 watt output would result in a total output power of 25 kWh.

24 posted on 05/05/2011 8:34:00 AM PDT by Bob
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To: Christian Engineer Mass

writer needs to read up the difference between kW & kWh.

_________________________________________________

What mistake is the writer making? I don’t see a problem.

1KW instantaneous is a measure of power that everyone realizes would be 1KWh if run for an hour. The “h” simply means per hour. Devices that use electricity are rated in watts or Kilo watts but understood to mean that although the measurement is instantaneous it would be that number of watts over the period of an hour.

A 100W light bulb would produce 1000W over 10 hours and .06Kw in 10 minutes but is still rated as 100W not 100 WH. Nobody that I know stands around with a stopwatch to turn off a device after exactly 1 hour.


37 posted on 05/05/2011 8:56:21 AM PDT by JAKraig (Surely my religion is at least as good as yours)
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To: Christian Engineer Mass

Yeah, and he had to take a jab at “global warming deniers”, comparing us to those denying cold fusion.


43 posted on 05/05/2011 9:11:18 AM PDT by TStro
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