comis : Message: Cp cowl

comis · Multizone Infiltration Modelling

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Cp cowl

Message #301 of 862 |

helo,

does any body know how to determinate the Cp value for a cowl at the top of a passive stack?

the PS simulation is not active in COMIS,

anyway I found at this position of the excel spreadsheet some default values sugested:

Cp of the hood (cowl): -0.35

z of the cowl: 2.5

how have been determinated these values?

is it corect to consider the cp value of the cowl constant and indipendent by its position on the roof (flat)? and indipendent by building geometry?

I normally use CpCalc to calculate Cp values,

but I sugest it's uncorrect to take the cp value of the roof and apply this to the cowl.

thank you!

marco massetti

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Wed May 5, 2004 10:15 am

marco massetti <massetmar@...>

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Message #301 of 862 |

Expand Messages	Author	Sort by Date
helo, does any body know how to determinate the Cp value for a cowl at the top of a passive stack? the PS simulation is not active in COMIS, anyway I found at...	marco massetti massetmar	May 5, 2004 10:16 am
Marco, the Cp-value of -0.35 of the roof itself will be a good first indication for the Cp of the cowl. The position on the roof is important, since Cp varies...	Knoll, Bas basknoll	May 5, 2004 11:45 am