Running Watts
Running Watts
(OP)
I would like to estimate the energy consumption of a dishwasher motor. If I assume it is a 1/4 horsepower motor, that implies it's about 190 watts, and draws about 1.6 amps. But it would not be running at full load all the time and must be de-rated so it will last for many years. What would be the typical running watts in this this kind of application?
Thanks for the help.
Later, John
Thanks for the help.
Later, John





RE: Running Watts
"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
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RE: Running Watts
Oh man, I must find out what brand this is. All the others use the reverse logic: run it slightly past its rating and guarantee a steady business selling parts...
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If we learn from our mistakes I'm getting a great education!
RE: Running Watts
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RE: Running Watts
If you really want to know then measure it;
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The drying element will use a lot more power than the motor.
RE: Running Watts
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"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
For the best use of Eng-Tips, please click here -> FAQ731-376: Eng-Tips.com Forum Policies
RE: Running Watts
It monitors about every parameter you'd ever want. You can even put in your price of electricity and it displays cost of operation.
The wall version is a lot cheaper but less robust and less convenient for studies. As crawling around on hands and knees to cycle thru the various displays is NOT convenient.
But back to the dishwasher. A dishwasher's motor would be run right at its rating because it's easy to measure and the load never changes. This is not like a washing machine. A dishwasher also runs continuously for a long periods.
Keith Cress
kcress - http://www.flaminsystems.com