heat element sizing or BTU cal

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hippy tech Active Contributor Join Date: Sep 2007 Location: northwest Georgia Mountains Posts: 12	heat element sizing or BTU cal 06/19/2008 11:22 AM
	I need to calculate the BTU's needed for sizing the heating elements to heat a jacket water system to 90 - 110 deg f. It has a tank that is 12" wide x 36" long x 24" deep, plus 50 gal of piping and jacket water. The circulation pump has a 75 GPM capacity. can anyone help me with the equation need to calulate this. thanks hippy tech __________________ If you are going to do something. Do it right or don't do it at all.
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bwire Guru Join Date: Dec 2007 Location: Upper Mid-west USA Posts: 7498 Good Answers: 97	#1 Re: heat element sizing or BTU cal 06/19/2008 11:53 AM
	Need more information: What temperature gain is required? __________________ If death came with a warning there would be a whole lot less of it.
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hippy tech Active Contributor Join Date: Sep 2007 Location: northwest Georgia Mountains Posts: 12	#2 In reply to #1 Re: heat element sizing or BTU cal 06/19/2008 12:23 PM
	the temperature gain will be minimal. it it a closed loop system and it is used for maintain temp. the product (candy) will be at temp and the hot water system is only needed to keep it in liquid form. the only time the gain will increase is when the system needs make-up water. the make-up water will be at 60 deg f(city water) and only 1/8 of thanks capacity. and am installing a second element to come on line for start-up, after maintenance, and when make-up water needed. __________________ If you are going to do something. Do it right or don't do it at all.
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ozzb Guru Join Date: Mar 2007 Location: Rosedale, Maryland USA Posts: 5197 Good Answers: 266	#3 Re: heat element sizing or BTU cal 06/19/2008 12:45 PM
	Secondary heating unit is unnecessary. Size your heater for start up time then use controller to maintain temperature. (Gallons X Temp. Rise(ºF)/ 372 X Heat-up Time(hrs)) X 1000 = watts 1 gallon = 231 in³ __________________ Life is not a journey to the grave with the intention of arriving in a pretty, pristine body but rather to come sliding in sideways, all used up and exclaiming, "Wow, what a ride!"
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hippy tech Active Contributor Join Date: Sep 2007 Location: northwest Georgia Mountains Posts: 12	#4 In reply to #3 Re: heat element sizing or BTU cal 06/19/2008 12:50 PM
	thanks ozzb i believe that will take care of my issue. __________________ If you are going to do something. Do it right or don't do it at all.
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bwire (1); hippy tech (2); ozzb (1)

You might be interested in: BTU Meters, Ball Transfer Units (BTU), AC Power Cords

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