Ventilation systems on most airplanes have a ventilation rate of about 15 cfi per maximum number of passengers (cubic feet per minute per passenger). Half of that flow is fresh air, while the other half is air taken from within the plane and processed through a HEPA filter which removes 99% of the virus particles in the air before being returned to the plane. Consider a plane with one passenger who is releasing 100,000 virus particles / min into the air. You can neglect settling of the particles (which is probably not a good assumption).
Ventilation systems on most airplanes have a ventilation rate of about 15 cfi per maximum number of passengers (cubic feet per minute per passenger). Half of that flow is fresh air, while the other half is air taken from within the plane and processed through a HEPA filter which removes 99% of the virus particles in the air before being returned to the plane. Consider a plane with one passenger who is releasing 100,000 virus particles / min into the air. You can neglect settling of the particles (which is probably not a good assumption).
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
Related questions
Question
Write down the total and species (virus) mass balances for the air in the plane.
Derive an equation for the concentration of virus particles in the air in the plane as a
function of time.
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