The position of the neutral layer

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A fire in an enclosure has reached flashover, & the gas temperature is assumed to be uniform at 1000oC. The enclosure has an opening 3 m wide & 2 m high. 
Estimate Following:
[A] the mass flow rates into an out of the opening.
[B] The position of the neutral layer, measured from the bottom of the opening.

Reference no: EM1312987

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