Consider a 300 m3 home with an infiltration rate of 0.2 ach, temperature of 25oC, and pressure of 1 atm. Assume carbon monoxide (CO) is a conservative pollutant, the only source of CO in the home is the gas range, and the ambient concentration of CO is always zero. Suppose there is no CO in the home at 6 PM, but then the oven and two burners are turned on for one hour. Estimate the CO concentration in the home at 7 PM and again at 10 PM (3 hours after turning off the range). Use Table 7.13 as needed Does this system exceed the 8-hr NAAQS for CO (9 ppm(v))? arhcon484 Chapter 7 Air Pollutionqe rissolaTABLE 7.13Some Measured Pollutant Emission Rates for Various SourcesSourceGas rangeOvenOne top burnerKerosene heaterbConvectiveRadiantOne cigarette(sidestream smoke) (mg)elaborprugi!sisev yd boxinstoeteruoe won grindystanullog seoron od yam yodial bazeugCO19001840CONONOx (as N)HCHO7159086Pollutant Emission Rate, (mg/hr)SO₂NO,5283"NOx reported as N.New portable heaters, warm-up emissions not included, SO₂ not measured.Source: National Research Council, 1981.Sources: Traynor et al., 1981, 1982.SO₂Particles (<0.5 μm)RadonSource: Traynor et al., 1981.122150.05195 of barwTABLE 7.14todDecay Constants or Reactivities, KPollutant0.91.5K (1/hr)0.00.00.150.40.230.487.6 X 10-311 1HCHO23161.14.01.44

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Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

5th Edition

ISBN:9781305084766

Author:Saeed Moaveni

Publisher:Saeed Moaveni

Chapter12: Electric Current And Related Variables In Engineering

Section: Chapter Questions

Problem 31P

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Consider a 300 m³ home with an infiltration rate of 0.2 ach, temperature of 25^oC, and pressure of 1 atm. Assume carbon monoxide (CO) is a conservative pollutant, the only source of CO in the home is the gas range, and the ambient concentration of CO is always zero. Suppose there is no CO in the home at 6 PM, but then the oven and two burners are turned on for one hour.

Estimate the CO concentration in the home at 7 PM and again at 10 PM (3 hours after turning off the range). Use Table 7.13 as needed

Does this system exceed the 8-hr NAAQS for CO (9 ppm(v))?

arh
con
484 Chapter 7 Air Pollution
qe ris
sola
TABLE 7.13
Some Measured Pollutant Emission Rates for Various Sources
Source
Gas range
Oven
One top burner
Kerosene heaterb
Convective
Radiant
One cigarette
(sidestream smoke) (mg)
elabor
prugi!
sisev yd boxinstoeter
uoe won grindys
tanullog seor
on od yam yodi
al bazeug
CO
1900
1840
CO
NO
NOx (as N)
HCHO
71
590
86
Pollutant Emission Rate, (mg/hr)
SO₂
NO,
52
83
"NOx reported as N.
New portable heaters, warm-up emissions not included, SO₂ not measured.
Source: National Research Council, 1981.
Sources: Traynor et al., 1981, 1982.
SO₂
Particles (<0.5 μm)
Radon
Source: Traynor et al., 1981.
122
15
0.05
195 of barw
TABLE 7.14
tod
Decay Constants or Reactivities, K
Pollutant
0.9
1.5
K (1/hr)
0.0
0.0
0.15
0.4
0.23
0.48
7.6 X 10-3
11 1
HCHO
23
16
1.1
4.0
1.44

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