Dynamic Isolation Technologies in Negative Pressure Isolation Wards by Zhonglin Xu & Bin Zhou

Author:Zhonglin Xu & Bin Zhou
Language: eng
Format: epub
Publisher: Springer Singapore, Singapore

In Fig. 3.33, q 1 is the air flowrate during the spray, m3/h; q 2 is the air flowrate sucked into the casing pipe, m3/h; q 3 is the flowrate of the leakage air, m3/h; Q is the flow rate of exhaust air through air filter, m3/h; k is the penetration of air filter,%; C is the bacterial generation rate, pc/h; Q/X is the flowrate inside the casing pipe (Q/X = q 1 + q 2, Q = q 2 + Q/X), where X is the ratio which is larger than 1.

In this case, the concentration of entering air from return air opening is C/(Q/X), pc/m3. The penetrated aerosol in air is kC/(Q/X). The total quantity of aerosol penetrated is:

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