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Assume the average house dimensions are 3 m x 5 m x 2.5 m (V = 37.5 m). After several days of measurements in homes around the community, you have gathered the background PM2.5 concentration of Ca = 5 μg/m³; average indoor PM2.5 concentration during cooking C = 700 µg/m³; peak indoor PM2.5 concentration Cmax = 2000 µg/m³; and emission rate from the fire 440 µg/min or 7.33 μg/s. You also determine that after the stove burns out the time it takes for the indoor air to go from peak concentration back to ambient background is 100 min (At). The PM2.5 decay rate is 1.33 x 10 s¹ ww To design better ventilation you want to calculate the current average ventilation rate for the structure using the data you collected. [(ACH 2.25 1/hr) mmm =

Assume the average house dimensions are 3 m x 5 m x 2.5 m (V = 37.5 m). After several days of measurements in homes around the community, you have gathered the background PM2.5 concentration of Ca = 5 μg/m³; average indoor PM2.5 concentration during cooking C = 700 µg/m³; peak indoor PM2.5 concentration Cmax = 2000 µg/m³; and emission rate from the fire 440 µg/min or 7.33 μg/s. You also determine that after the stove burns out the time it takes for the indoor air to go from peak concentration back to ambient background is 100 min (At). The PM2.5 decay rate is 1.33 x 10 s¹ ww To design better ventilation you want to calculate the current average ventilation rate for the structure using the data you collected. [(ACH 2.25 1/hr) mmm =

Introduction to Chemical Engineering Thermodynamics
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
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Assume the average house dimensions are 3 m x 5 m x 2.5 m (V = 37.5 m). After several days of measurements in homes around the community, you have gathered the background PM2.5 concentration of C₂ = 5 µg/m³; average indoor PM2.5 concentration during cooking C = 700 µg/m³; peak indoor PM2.5 concentration Cmax = 2000 µg/m³; and emission rate from the fire 440 µg/min or 7.33 µg/s. You also determine that after the stove burns out the time it takes for the indoor air to go from peak concentration back to ambient background is 100 min (At). The PM2.5 decay rate is 1.33 x 10s To design better ventilation you want to calculate the current average ventilation rate for the structure using the data you collected. [(ACH = 2.25 1/hr) ww
Transcribed Image Text:Assume the average house dimensions are 3 m x 5 m x 2.5 m (V = 37.5 m). After several days of measurements in homes around the community, you have gathered the background PM2.5 concentration of C₂ = 5 µg/m³; average indoor PM2.5 concentration during cooking C = 700 µg/m³; peak indoor PM2.5 concentration Cmax = 2000 µg/m³; and emission rate from the fire 440 µg/min or 7.33 µg/s. You also determine that after the stove burns out the time it takes for the indoor air to go from peak concentration back to ambient background is 100 min (At). The PM2.5 decay rate is 1.33 x 10s To design better ventilation you want to calculate the current average ventilation rate for the structure using the data you collected. [(ACH = 2.25 1/hr) ww
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