I was wondering if anyone knew off the top of their heads the conversion from KW to KWh? I need to take it over a 24 hours period. I have done a little research online but really havn't come up with anything good so far. Any help would be greatly appreciated.
Conversion from KW to KWh
- Thread starter eng.dork
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Help Support Professional Engineer & PE Exam Forum:
I'm a mechanical/Structural guy and not an EE but I believe that KW (kilowatt) is a measure of power equal to 1000Watts and KWh (kilowatt/hours) is a measure of the total power used expressed in terms of equivalent units of 1 kilowatt (1000watts) in a 1 hour period.
from a power comapny website:
A kilowatt-hour (kWh) is one thousand watts per hour. Just think if you have ten 100-watt lightbulbs (ten x 100 = 1,000) burning for one hour, that is one kWh; and the electric company will charge you about xxx cents for those 1,000 watts used during that hour.
net result is that the equivalent KWh would depend on the wattage used and for how long. Watts * time = Watt hours / 1000 = KWh
Hope this helps.
from a power comapny website:
A kilowatt-hour (kWh) is one thousand watts per hour. Just think if you have ten 100-watt lightbulbs (ten x 100 = 1,000) burning for one hour, that is one kWh; and the electric company will charge you about xxx cents for those 1,000 watts used during that hour.
net result is that the equivalent KWh would depend on the wattage used and for how long. Watts * time = Watt hours / 1000 = KWh
Hope this helps.
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chaosiscash
Subcontractor
Yep. They don't really convert, as they are not measuring the same thing. (power vs. energy) If you know your load (kw), just multiply it by your 24 hours. If you know your energy used for 24 hours (kwh), just divide it by 24 to get your load (kw).
IlPadrino
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ODB_PE
I'm not an engineer, but I play one at work
Sschell
Dude?
God help us!
on a related note, I was wondering if anyone knows how to convert feet into foot-pounds... or inches into PSI... anyone???
sorry eng.dork... I couldn't resist some ball busting! no offence.
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IlPadrino
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wilheldp_PE
PE, LEED AP, SPAM KING
There is definitely no shortage of those around here. We couldn't stay on topic if we were stapled to it.
This is true given your load is constant. Generally, energy is the integral of power over time. So if in a day you use 12 000 W for an hour and 0 W for the other 23 hours, you've used 12 000 Wh for that day. If you use a constant 500 W for 24 hours, you've also used 12 000 Wh for the day.
chaosiscash
Subcontractor
No shit. I thought about going into that, but given the nature of the question I felt it best to keep the answer as simple as possible.
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My post wasn't intended to imply that I thought you didn't understand the concept, choas. Despite the simplicity of the question, I figured since eng.dork has previously stated he has a BS in EE and is an electrical PE that he might appreciate a more in-depth explanation. I apologize if my post came across as demeaning or offensive.
chaosiscash
Subcontractor
Oops. I guess my reply did come across as though I took offence. No worries.
IlPadrino
Well-known member
OK... maybe you can help me next... I have a pump that discharges 20 CFS. How many gallons a day is that? Oh... and please provide an in-depth explanation because I have a BS and MS and I'm a PE.
:joke:
Chucktown PE
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At this point it is hard to tell who is actually a dumbass and who is joking around. I hope for our profession’s sake that none of these posts are actually serious and everyone knows how to convert quarts to gallons, inches to feet, determine power consumption, and wipe your own ass. If not, please let me know where you went to school and where you work. I have a younger brother who wants to be an engineer and I just want to make sure I steer him in the right direction.
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IlPadrino
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^ Are you insinuating he may be Fudgey?
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eng.dork,
You must read the newspapers a lot. Nine out of ten times when I read an article that mentions either watts or watt-hours, they are swapped or used as the same term. I've also met several elecctricians who confuse the two. Our electric bills here even use "power cost" when they mean energy. It's no wonder our babies are being born naked.
You must read the newspapers a lot. Nine out of ten times when I read an article that mentions either watts or watt-hours, they are swapped or used as the same term. I've also met several elecctricians who confuse the two. Our electric bills here even use "power cost" when they mean energy. It's no wonder our babies are being born naked.
