An incinerator burns 180 lb/hr chlorobenzene and has a stack gas containing 7% oxygen by volume on a dry basis. Determine the percent excess air .
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An incinerator burns 180 lb/hr chlorobenzene and has a stack gas containing 7% oxygen by
volume on a dry basis. Determine the percent excess air
.
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- Calculate the oxygen transfer rate (OTR) in a aeration reactor of volume 10m3 with an air flow rate of QG of 0.1m3/h while the oxygen concentration decreased from 6 g/L to 2.0 g/L.A thermal oxidizer incinerator operates as a plug flow reactor at a temperature of 250 deg C. The first order rate constant for vinyl chloride removal is 45/sec at 250 degrees C and the inside diameter of the incinerator (which is shaped like a cylinder) is 1 m. (a) If the pollutant (Vinyl chloride) enters the incinerator at a flow rate of 3,000 m3/min and it is desired to remove 99.99% of the pollutant, what should the length of the incinerator be? (b) What is the length of the incinerator if the desired removal is increased to 99.99995%?the value of oil is - 0.8 asap 15 mins
- You place a 20 g sample of solid waste in a drying oven overnight and find the mass in the morning (after the moisture has been evaporated) to be 16.2 g. A 1 g (wet) sample is also placed in a 1L water jacket bomb calorimeter and 0.18 g of ash remains in the sample cup after combustion. The temperature in the calorimeter is raised by 2.17 ˚C. Calculate the heat value on a wet weight basis, dry weight basis, and on a moisture and ash-free basis. Convert your values to BTU/lbIn a wastewater treatment plant, the supply of oxygen supply is 073 kgO2/h is necessary underoperating conditions, using a mechanical aeration system. Calculate theStandard Oxygen Transfer Rate. Using relevant data: Liquid temperature: T = 23 ◦C, Altitude = 1000 m, DO concentration to be maintained in the liquid CL = 1.5 mg/L, α = 0.90, β = 0.95, θ = 1.024 (Note: calculate the required value if it is missing)The Energy Efficiency Rating (EER) of an air-conditioning unit is defined asthe ratio of the heat removed in Btu/h divided by the energy used in watts.The EEI (Edison Electric Institute) names an air-conditioning unit as anEnergy Star unit if it has an EER of 13 or greater. A 21⁄2-ton air-conditioningunit uses 2.41 kilowatts (2,410 watts) of energy. One ton is equivalent to12,000 Btu/h. Can this unit be termed an Energy Star unit?
- B-Calculate the Gross and Net calorific values of a coal having the following compositions, C = 63 %, H2 = 19 %, 02 = 03 %, S =13 % and ash=2.The raw water supply for a community contains 160 mg/L total particulate matter. It isto be treated by addition of 86 mg/L alum.Essentially all of the added alum precipitatesby this reaction:Al2(SO4)3 · 14H2O ⇒Al(OH)3(s) + 3SO2−4 + 6H+ + 8H2O. For a total flow of 5500 m3/day, compute the daily alum requirement. Answer in units of kg/day. Determine the concentration of solids in the water following alum addition (i.e., the sum of the solids initially present and those formed during treatment). Answer in units of mg/L.The pipe is 25mm with friction factor of 0.022. The second tank is vented. H1=1.4m H2=4.5m H3=1.0m X1=14.9m X2=2.7m Calculate the pressure(kPa) above the gasoline in the first tank that will result in a flowrate of 400 liters/min.
- A flue gas contains mainly 15 micron sized particles (density 2000 kg/m3) to be removed by a cyclone collector. The body diameter is assumed to be 0.8m. A high efficiency mode is desired. The inletvelocity is 15 m/s with a density of 1.225 kg/m3. What is the efficiency of removal of the 15 micron sized particles?The air coming out of the distillery has 60% relative humidity. How much water will you need to saturate this airstream? After saturation* what will be the temperature and the total volumetric flow rate? Should you also provide soaker hoses in your design? Discuss the reasons why you will or will not include soaker hoses.conversion: Given 200 ppmv SO2 (@STP), what isthe SO2 emission rate in lb/hr.
