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Need a formula

Hi,

I'm trying to find Q for chimney/stove that looks very similar to the picture attached. I was going to use the formula below, but I realized that it does not account for the venturi effect if a chimney was conical in shape - i.e. smaller at the top vs. the base. Nor does it account for differences in the sizes of the air inlet and outlet.

Q=CA(sq root(2gH(Ti-To)/Ti))

[url removed, login to view]

where:

Q = flue-gas flow-rate, m³/s

A = cross-sectional area of chimney, m² (assuming it has a constant cross-section)

C = discharge coefficient (usually taken to be 0.65–[url removed, login to view])

g = gravitational acceleration at sea level, [url removed, login to view] m/s²

H = height of chimney, m

Ti = absolute average temperature of the flue gas in the stack, K

To = absolute outside air temperature, K

I would like to know if there is a formula to find Q that would allow me to account for the following variables:

- area of the bottom air inlet

- area of the top outlet

- temp inside the chimney

- temp outside the chimney

- height of the chimney

Thanks you.

Kemahiran: Kejuruteraan, Matematik, Fizik

Lihat lebih lanjut: top mathematics, mathematics base, k wikipedia, formula it, find mathematics, en engineering, air gas, cross section, top stack, need formula, cross flow, air flow, acceleration, need wiki, find differences, wikipedia account, need wikipedia account, need script constant contact, need help constant contact

Tentang Majikan:
( 0 ulasan ) Calgary, Canada

ID Projek: #4101300

Dianugerahkan kepada:

VolKa

See PM,please.

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bchandra1955

Professional fluid mechanics and aerodynamics field expert with 36 years of experience here.

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betaenergy

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anujgargiitk

Hi, I can derive the required relation from the basics. Have several such work in the past. I also have 8 international publications all in the field of mathematical modeling of the systems using fundamental physics. L Lagi

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spiritofhimalya

I can find that formula for you. Please check your pm. thanks

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Shabih14

interested see PMB

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engrsalman

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Torricelli

Let's get this solved right away!

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zkutch

Hello. More 20 years mathematics and programming experiense. See pmb, please.

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Janakalakmewan

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BitPie

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Ready to start.

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amarchem2003

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HighGradeWork

I can help.

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