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Yo Jeanius The King 02-20-2009
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Posted by Jean on February 20, 2009, 11:33 pm
On Fri, 20 Feb 2009 23:14:21 -0500, The King

>>On Fri, 20 Feb 2009 22:40:29 -0500, The King
>>>>On Fri, 20 Feb 2009 21:12:20 -0500, The King
>>>>>Lets plug your numbers into this and tell me what you get.
>>>>>CFM = volts x amps x 3.412 / 1.08 x temperature rise
>>>>>= 237 x 20 x3.412 / 1.08x 19
>>>>>=16177 / 20.5
>>>>>788 CFM
>>>>Is your formula ordered as follows?
>>>>A) 237 x 20 x 3.412 / 19 x 1.08 = 919
>>>>which is the same as 237 x 20 x 3.412 x 1.08 / 19 = 919
>>>>or is it
>>>>B) 237 x 20 x 3.412 / (19 x 1.08) = 788
>>>Neither. It's (237 x 20 x 3.412 ) / (19 x 1.08) = 788
>>Which is identical to B)
>Exactly.
>>>>Remember your math rules from school?
>>>>Rule 1: First perform any calculations inside parentheses.
>>>>Rule 2: Next perform all multiplications and divisions, working from
>>>>left to right.
>>>>Rule 3: Lastly, perform all additions and subtractions, working from
>>>>left to right.
>>>Please don't lecture me on math rules. Thank you.
>>Can you give me a URL that has your formula? I'll need it to back up
>>your calculations. "Some guy on a newsgroup" won't hold much sway.
>Ahem.. some guy?? I'm the God damn KING here! You tell them I said
>so.
>Try Googling Sensible Heat Equation and Total Heat Equation or some
>variable of such. I'm sure its out there somewhere. Check the
>Engineering Toolbox they may have something.
>>I do appreciate your help. And I realize this air flow business is not
>>really consequential to solving my problem.
>The problem is Goodman is just shit equipment. Its always been loud.
>That's why they say its normal. Wanna fix it. Junk it and get
>something better. I know you don't want to hear that and they will
>never say it but that's the facts Jack.

Here's what I said in an earlier post:

"I'm beginning to think the only solution to the noisy machine is to
sell tickets to a "heat pump bash".
$100 for the first swing with a baseball bat at the thing
$95 for the second
$90 for the third
etc etc
The person who puts it completely out of it's misery will get their
ticket money back.

Afterwords we'll take it out to the country and roast it on a huge
bonfire."

>It's either that or engineer a Cone of Silence for it in your spare
>time. :)

I'll get out my cement calculator. Should it be 4 inches thick or do
you think 6 would be better?

It's been a slice... I'm gonna toddle off now.

Have a good one.

Posted by Jean on February 20, 2009, 11:56 pm
On Fri, 20 Feb 2009 23:14:21 -0500, The King

>Ahem.. some guy?? I'm the God damn KING here! You tell them I said
>so.

I will ;)

>Try Googling Sensible Heat Equation and Total Heat Equation or some
>variable of such. I'm sure its out there somewhere. Check the
>Engineering Toolbox they may have something.

After a quick google:

http://www.csemag.com/blog/1250000325/post/1850034985.html

Q = 1.08 x cfm x deltaT
Where:
Q = Load in Btu/hr.
1.08 = Another one of those pesky units conversion constants that are
dependent on the conditions of the fluid associated with the equation
(in this case, air, and the constant is good for typical HVAC systems
at or near sea level)
cfm = System flow rate in cubic feet per minute
deltaT = Temperature rise or drop in °F

Therefore:
        TR = BTUH / (CFM x 1.08)

which is NOT Goodman's
        TR = kW x 3412 x 1.08 / CFM

The King = 1
Goodman = -3

Thanks for input. I'm going to run another duct tomorrow and squeeze
out a little more heat before the pump blows up.

Posted by The King on February 21, 2009, 12:34 am

>On Fri, 20 Feb 2009 23:14:21 -0500, The King
>>Ahem.. some guy?? I'm the God damn KING here! You tell them I said
>>so.
>I will ;)
>>Try Googling Sensible Heat Equation and Total Heat Equation or some
>>variable of such. I'm sure its out there somewhere. Check the
>>Engineering Toolbox they may have something.
>After a quick google:
>http://www.csemag.com/blog/1250000325/post/1850034985.html
> Q = 1.08 x cfm x deltaT
> Where:
> Q = Load in Btu/hr.
> 1.08 = Another one of those pesky units conversion constants that are
>dependent on the conditions of the fluid associated with the equation
>(in this case, air, and the constant is good for typical HVAC systems
>at or near sea level)
>cfm = System flow rate in cubic feet per minute
>deltaT = Temperature rise or drop in °F
>Therefore:
>        TR = BTUH / (CFM x 1.08)
>which is NOT Goodman's
>        TR = kW x 3412 x 1.08 / CFM
>The King = 1
>Goodman = -3
>Thanks for input. I'm going to run another duct tomorrow and squeeze
>out a little more heat before the pump blows up.

It's a good thing I don't get headaches... :)

Good luck dude.

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