Q3: Calculate the steady-state CO2 concentration of a single family home with 3 bedrooms, 3 people, a total area of 114m^2. Assume an outdoor concentration of CO2 of 400 ppm and that each of the house’s occupants produce .005 L/s of CO2/person. Assume 100% outside air with no recirculating. Assume that the ventilation rate is 23 L/s. Report your answer in ppm and round to the nearest integer. Determining Whole-Building Ventilation Rates for Residential BuildingsWhole-building ventilation replaces an amount of stale, indoor air with ventilation from the outdoors. It isintended to dilute indoor pollutants and provide acceptable air quality. ASHRAE Standard 62.2, Ventilation andAcceptable Air Quality in Low-Rise Residential Buildings, defines the roles and minimum requirements formechanical systems, natural ventilation systems, and building envelopes intended to provide acceptableindoor air quality (IAQ) in residential buildings. We will use the following formula from ASHRAE Standard 62.2to calculate the total required ventilation rate:Q = 0.15A floor + 3.5 (Nhr + 1)Where:Q is the total required ventilation rate (L/s)A floor is the dwelling-unit floor area (m2)Nbris the number of bedrooms (not to be less than 1)Once we know the ventilation rate in a space of a given volume, we can also calculate the steady-state CO2concentration using the following formula:GNKCinCout +QWhere:Cin is the indoor steady state concentration of CO2, expressed as parts per million, or ppm(dimensionless)Cout is the outdoor concentration of CO2 that is in the fresh air from outdoors, expressed as parts permillion, or ppm (dimensionless)G is the generation rate of CO2 per occupant (L/s of CO2/ person)N is the number of occupants (people)O is the total ventilation rate (L/s)K is a constant to introduce units of ppm (K is equal to 1,000,000)

Q3: Calculate the steady-state CO2 concentration of a single family home with 3 bedrooms, 3 people, a total area of 114m^2. Assume an outdoor concentration of CO2 of 400 ppm and that each of the house’s occupants produce .005 L/s of CO2/person. Assume 100% outside air with no recirculating. Assume that the ventilation rate is 23 L/s. Report your answer in ppm and round to the nearest integer.

Q3: Calculate the steady-state CO2 concentration of a single family home with 3 bedrooms, 3 people, a total area of 114m^2. Assume an outdoor concentration of CO2 of 400 ppm and that each of the house’s occupants produce .005 L/s of CO2/person. Assume 100% outside air with no recirculating. Assume that the ventilation rate is 23 L/s. Report your answer in ppm and round to the nearest integer.

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter5: Separation Processes

Section: Chapter Questions

Problem 5.22P

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