What is the steady state co concentration

Assignment Help Civil Engineering
Reference no: EM13564980

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 ?

Reference no: EM13564980

Questions Cloud

Determine the percent error n in replacing the sine and the : Determine the percent error n in replacing the sine and the tangent of an angle by the value of the angle in radians for angle values 5 degrees, 10 degrees, and 20 degrees. Explain the qualitative difference between the sine and tangent results
Determine the design esal if the design life is 20 year : A six-lane divided highway is to be designed to replace an existing highway. The present AADT (both directions) of 6000 vehicles is expected to grow at 5% per year. Assume SN = 4 and pt = 2.5
Calculate the extreme-fibre stresses at mid-span : Calculate the extreme-fibre stresses at mid-span for a simply supported prestressed concrete beam with a depth of 750mm, width 370mm and span of 7m under working live load of 65 kN/m and self-weight. The prestressing force.
Calculate the maximum pressure developed when a 10 in. thick : Calculate the maximum pressure developed when a 10 in. thick wall 10 ft high is to be poured at the rate of 3ft/hr at a temperature of 70 degrees F.
What is the steady state co concentration : 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..
Determine the required spacing of joists supporting : Determine the required spacing of joists supporting 3/4in. thick plywood that is to support an 8 in. concrete floor slab, assuming a construction live load of 50 psf and a formwork dead load of 10 psf. Use plywood with f' b= 1930 psi.
Estimate the percentage of time headways that will be 10 sec : At a specified point on a highway, vehicles are known to arrive according to a Poisson process. Vehicles are counted in 20-s intervals, and vehicle counts are taken in 120 of these time intervals.
What is the annual worth of each investment : The engineering team at Manuels Manufacturing, Inc., is planning to purchase an enterprise resource planning (ERP) system. The software and installation from Vendor A costs $380,000 initially and is expected to increase revenue $125,000 per year ever..
Determine whether a jump may occur at an initial depth : A horizontal channel 4 m wide carries a discharge of 16 m3/s. Determine whether a jump may occur at an initial depth of 0.5 m or not. If a hydraulic jump occurs, determine the sequent depth (conjugate depth) to this initial depth. Also determine the ..

Reviews

Write a Review

Civil Engineering Questions & Answers

  Find the required column reinforcement

A rectangular column of size 16” x 16” is to be designed for the following loads. Service D.L = 150 kips ft, Service LL = 200 kips-ft. DL Moment = 80 ft- kips, LL Moment =130 ft kips. Find the required column reinforcement.

  Find the bod5 of the final effluent using the nrc equation

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

  What is the pressure difference between two ends of pipe

The pipe contains two 6 in steel elbows, two fully open gate valves, a fully open 90o angle valve, and a swing check valve. If the discharge end of the pipe is located 20 ft higher than the entrance, what is the pressure difference between the two..

  Determine the net power output of this engine

Consider a Carnot heat-engine cycle executed in a steady-flow system using steam as the working fluid. The cycle has a thermal efficiency of 35%, and steam changes from saturated vapor at 300 C during the heat addition process. If the mass flow rate ..

  Determine the aquifer transmissivity

The initial piezometric head in a confined aquifer has a thickness of 11.6 m is 85.7 m above sea level. A well with a radius of 0.5 m pumps at a constant rate of 1240 m3/day. After the cone of depression has achieved equilibrium, the piezometric head..

  The ratio of volumetric strain to diametral strain is

A w24x192 of a242 steel is to be used as a beam. what are the values of yield stress Fy ultimate tensile stees Fu and modulus of elasticity E for this beam?

  Four forces act on a small airplane

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..

  Estimate the eutectoid temperature and concentration

Consider a steel containing 0.6% carbon and 10% chromium. Estimate the eutectoid temperature and concentration. What is the proeutectoid phase

  Draw a cross-section of the specified pavement design

The roadway to be constructed is 3 miles long and 60 feet wide. • The following pavement design specifications have been issued: - Base coarse: 6" DGA - Stabilized base: 4" - Bottom coarse of asphalt: 3" - Top coarse of asphalt: 2"

  Determine the pressure rise in the tire when the air

The pressure in a tire depends on the temperature of the air in atire. When the air temp is 25 C, the pressure gage reads 210KPa. If the volume of the tire is 0.025 m3

  Calculations of the complete force analysis

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.

  Determine the acre-feet of water that can be impounded

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.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd