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sparrow
17-09-2007, 05:46 PM
Hi I require some helpful advice and perhaps an example of the formula, for taking British Thermal Units, and then somehow converting them into Kilo Jules.

I hope that is enough information thanx in advance

Sparrow.:rolleyes:

sparrow
17-09-2007, 09:46 PM
Ok I think this is quite difficult, i have found this out for myself thus far.
1x ton = 12000 btu/h = 200btu/min =3517w

The above is approximately the power to cool 1 short ton of water. This is done at 1deg f every ten minutes.
This is the less common usage of power required to cool 1 long ton of water,by 1 deg fevery ten minutes
=13440 btu/h = 3939w

Do i have to convert to watts first? then find kilo joules? can anyone help?

Lowrider
17-09-2007, 10:00 PM
1 kWh equals 3,6 MJ

So that's: 1 kiloWatthour equals 3,600,000 Joules

1 BTU equals 0,29307121 W

The Viking
17-09-2007, 10:01 PM
Can't find the actual formula at the moment but THIS (http://joshmadison.com/software/convert/) is a nifty piece of software that will convert it for you.

Josip
17-09-2007, 10:01 PM
Hi, Sparrow :)


Hi I require some helpful advice and perhaps an example of the formula, for taking British Thermal Units, and then somehow converting them into Kilo Jules.

I hope that is enough information thanx in advance

Sparrow.:rolleyes:

try this http://www.onlineconversion.com/power.htm

or download this

http://www.shareup.com/downloading-9152.html

or this..one, the very best for me (converts many units and has a very good calculator within) try...

ftp://ftp.simtel.net/pub/simtelnet/win3/calc/sicon77b.zip (ftp://ftp.simtel.net/pub/simtelnet/win3/calc/sicon77b.zip)

Best regards, Josip :)

sparrow
17-09-2007, 10:36 PM
:cool:Thanks for your help everyone, I have written two pages on the conversion of BTU/H to Watt and KJ I think the answers my tutor is looking for must be in there somewhere,lol:rolleyes:

The Viking
17-09-2007, 10:51 PM
Aha,

You were cheating for a test!

And here we thought that we were giving a fellow engineer advice on a practical problem....

We should have guessed.


(Good luck with your tutor, hopefully he's not on this list)