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Gas stoves emit CO and this can become an indoor health hazard. Consider an energy efficient 595 m 3 home with 0.03 ai r exchanges per hour infiltration rate. Suppose the power goes off one winter and you turn the oven and 2 burners on to heat the kitchen to stay warm. The CO concentration of outside air is 0 .0 ug / m 3 and initially there is no CO in the home either . As sume that the air is well mixed in the house. The oven emits 1900 mg/hr and each burner emits 1840 mg/hr.
a . The oven and two burners are on for 4 hours from 3 - 7 PM. Estimate the CO concentration in the home at 7 PM.
b. What is the steady state CO concentration? c. Given the steady state CO mixing ratio in part above (assume 1 atmosphere pressure and 288 K) what is the resulting %COHb and what is the health impact if exposed to this concentration overnight while you slept ?
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A two-stage trickling filter plant treats 291.7 m3/h of municipal wastewater that has a BOD5 of 200 mg/L. The two filters have equal dimensions (depth = 1.68 m; diameter = 21.3 m), and each has a recycle ratio of 1.0
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The slope distance and zenith angle measured from point P to pointQ were 1876.253m and 87.33'24 degrees, respectively. The instrumentand rod target heights were equal. If the elevation of point P is227.965m, above datum, what is the elevation of poin..
Consider a steel containing 0.6% carbon and 10% chromium. Estimate the eutectoid temperature and concentration. What is the proeutectoid phase
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Submit your cost analysis for the materials, along with a scaled drawing of the truss, identifying on the drawing the tensile and compressive force in each member. Also include your calculations of the complete force analysis.
An earth fill is constructed across a drainage. Closed contours at the 1000, 1040 and 1080 foot levels define areas of 680,000; 1,200,000; and 1,325,000 square feet respectively.
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