Reverse flow baffle plate calculating

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Smokingdaddy
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Reverse flow baffle plate calculating

Post by Smokingdaddy » July 11th, 2018, 5:56 am

Hi everyone im new on this forum im from quebec canada (sorry for my poor english )

Im just started a new construction of a reverse flow smoker my round tank dimension is 24x24. What i want to say is how height i left between the baffle plate and the bottom of the tank (3-4-5-6 inch ??? ) and for iinformation the dimension of my firebox is 16x16x18

Thanks for the answer
Tom



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Pete Mazz
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Re: Reverse flow baffle plate calculating

Post by Pete Mazz » July 11th, 2018, 6:12 am

The calc says to make the throat cutout 3" high.


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Pete Mazz
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Re: Reverse flow baffle plate calculating

Post by Pete Mazz » July 11th, 2018, 6:39 am

https://bbqpitcalculator.com/

http://www.smokerbuilder.com/forums/vie ... =87&t=4426

I got 50 gallons for your tank and 37 sq in for the throat.


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Re: Reverse flow baffle plate calculating

Post by Smokingdaddy » July 12th, 2018, 10:16 pm

So when the calculator said to install my baffle plate at 3" to the bottom of the tank may i install it at 4" is that a problem ? I think its good he have more air passing easier ?



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Dirtytires
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Re: Reverse flow baffle plate calculating

Post by Dirtytires » July 12th, 2018, 10:30 pm

Air is restricted at the throat and the baffle plate gap...a little more space under the plate is really not going to help any but will decrease cooking chamber space. I personally wouldn’t make it any bigger but don’t think it would hurt if you did.



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Re: Reverse flow baffle plate calculating

Post by Pete Mazz » July 13th, 2018, 5:52 am

Not "more air" but air speed . You've got a short CC with a relatively large diameter. Think of it like drinking thru a straw that has a larger diameter section half way up. The liquid starts off at a certain speed but slows as it enters the fatter section then speeds up again. You don't get more liquid, but just change the speed in the fatter section. If the CC was very long you'd have some friction loss but your's really won't. If anything, increase it by an inch and install a shadow plate.


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