Engineering, 05.11.2019 00:31 kymmyaboss2
Afuel oil is fed to a furnace and burned with 25.0% excess air. the oil contains 87.0 wt% c, 10.0% h, and 3.00% s. analysis of the furnace exhaust gas shows only n2, o2, co2, so2, and h2o. the sulfur dioxide emission rate is to be controlled by passing the exhaust gas through a scrubber in which most of the so2 is absorbed in an alkaline solution. the gases leaving the scrubber (all of the n2, o2, and co2, and some of the h2o and so2 entering the unit) pass out to a stack. the scrubber has a limited capacity, however, so that a fraction of the furnace exhaust gas must be bypassed directly to the stack. at one point during the operation of the process, the scrubber removes 90.0% of the so2 in the gas fed to it, and the combined stack gas contains 634.5 ppm (parts per million) so2 on a dry basis; that is, every million moles of dry stack gas (i. e. not including the water) contains 634.5 moles of so2. we wish to calculate the fraction of the exhaust bypassing the scrubber at that moment.
Answers: 3
Engineering, 04.07.2019 18:10
Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.
Answers: 1
Engineering, 04.07.2019 18:10
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
Engineering, 04.07.2019 18:20
For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.
Answers: 1
Engineering, 04.07.2019 19:10
Arigid tank contains 10 kg of air at 137 kpa (abs) and 21°c. more air is added to the tank until the pressure and temperature rise to 242 kpa (abs) and 32°c, respectively. determine the amount of air added to the tank. [r-0.287 kj/kg k]
Answers: 3
Afuel oil is fed to a furnace and burned with 25.0% excess air. the oil contains 87.0 wt% c, 10.0% h...
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