Identify the major components of a kettle reboiler.
vapor cavity
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A 1530 MW bituminous coal-fired wet-bottom plant emits mercury into the atmosphere. The EPA AP-42 emission factor for the power plant is 16 lb of Hg per 1012 btu. The plant operates around the clock, 365 days a year, 24 hours per day. The 20 m3/s (actual) of exhaust from the plant exits the 2-mdiameter stack at 700°C. The stack is 50 m high. The air pressure within the stack is essentially equal to the ambient air pressure of 1 atm. The average ambient temperate measured at the stack height is 20°C. The average temperature measured at 110 m on a nearby radio tower is 18.5°C. The prevailing wind speed is 3 m/s. Determine:
a. The mass emission rate of Hg in units of mg/s b. The plume rise from the stack in m c. The maximum ground-level pollutant concentration (mg/m3) from an elevated source in ppm d. The concentration of mercury 2 km directly downwind from the power plant. Calculate the concentration at ground level for gaseous pollutants that are not absorbed by the ground. What will be an ideal response?
Legal Description: All that portion of Lot Four (4) in Block One Hundred Forty-nine (149) of the City of Escondido, as per Map thereof No. 336, filed in the Office of the County Recorder of said San Diego County, July 10, 1886, described as follows: Beginning at a point on the centerline of Grant Avenue, North 69°43? East, a distance 240.0 feet from the centerline intersection of North
Broadway and Grant Avenue, which said letter point is the Northwest corner of said Lot Four (4) of Block One Hundred Fortynine (149); thence North 69°43? East along the centerline of said Grant Avenue, a distance of 317.0 feet to a point; thence South 00°57? East 96.0 feet; thence South 10°40? West 166.0 feet; thence South 69°43? West 200.0 feet; thence North 20°17? West 233.0 feet; more or less, to the point of beginning, and containing 1.42 acres, more or less. What will be an ideal response?
____ is a selection command.
A. uniq B. awk C. sort D. sed
An oil filter should be hot drained for how long before disposal?
A) 4 hours B) 12 hours C) 8 hours D) 30 to 60 minutes