Suppose there is a source of ??? in a building that produces 100 ??/? of ???.Assume that the air inside the building is always well mixed and that the outdoor air has already an ??? concentration of 50 ??/?3.(a) What outdoor airflow is needed (in ?/?) to meet the indoor concentration of 100 ??/?3 or less?(b) If the zone bypass factor is 0.2, what should be the outdoor airflow if there is no recirculation of return air?(c) Recalculate (b) if 80% of the air is recirculated. Suppose there is a source of 0x in a building that produces 100 µg/s of N0x.Assume that the air inside the building is always well mixed and that the outdoor airhas already an nOx concentration of 50 µg/m³.(a) What outdoor airflow is needed (in l/s) to meet the indoor concentration of100 µg/m³ or less?(b) If the zone bypass factor is 0.2, what should be the outdoor airflow if there is norecirculation of return air?(c) Recalculate (b) if 80% of the air is recirculated.

Given data: Mass flow rate of NOx in the building = 100 μg/s Outdoor concentration of NOx = 50 μg/m3…

Answered: Suppose there is a source of N0x in a…

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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Suppose there is a source of ??? in a building that produces 100 ??/? of ???.
Assume that the air inside the building is always well mixed and that the outdoor air
has already an ??? concentration of 50 ??/?3.

(a) What outdoor airflow is needed (in ?/?) to meet the indoor concentration of
100 ??/?3 or less?
(b) If the zone bypass factor is 0.2, what should be the outdoor airflow if there is no
recirculation of return air?
(c) Recalculate (b) if 80% of the air is recirculated.

Suppose there is a source of 0x in a building that produces 100 µg/s of N0x.
Assume that the air inside the building is always well mixed and that the outdoor air
has already an nOx concentration of 50 µg/m³.
(a) What outdoor airflow is needed (in l/s) to meet the indoor concentration of
100 µg/m³ or less?
(b) If the zone bypass factor is 0.2, what should be the outdoor airflow if there is no
recirculation of return air?
(c) Recalculate (b) if 80% of the air is recirculated.

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