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A 825 MW electric power plant (36.2 % efficient) uses a coal with the following composition (C = 74.8 wt%, H = 5.2 wt %, O = 7.3 wt%, N = 0.4 wt%, and ash = 12.3 wt %, with energy content 9,950 BTU/lb). Combustion occurs with 50% excess air to form CO2, H2O, and NO. Assume 35% of fuel nitrogen converts to NO, and that fuel NO is 80% of total NO (the remainder being thermal NO). Calculate a) the NO concentration (ppm) in the exhaust gas and b) the daily production of NO.
What information has to be obtained in order to ensure that the method will be a satisfactory one and determine changes in composition of a fluid. Define what is meant by refractive index, and give the relationship between the incident and refracte..
in one cycle a heat engine absorbs 480 j from a high-temperature reservoir and expels 300 j to a low-temperature
No heat interactions with the environment are allowed. You do not need to describe the details of the process that produces the maximum work, but you do need to describe the final state of the blocks fully.
The spool has a mass of 75 kg and a radius of gyration . It rests on the inclined surface for which the coefficient of kinetic friction is . If the spool is released from rest and slips at A, determine the initial tension in the cord and the angul..
consider the arrangement described in problem 1. a cable attached to the 100 lbm piston exerts a 200 lb force upward on
carbon dioxide enters an adiabatic diffuser at 220 ms 80 kpa and 127 degc at a rate of 1.5 kgs. if the carbon dioxide
1. the contraption below has a face cam with an elliptic pro?le pushing a push rod against a spring. the face cam is
the density of liquid water at 25 c is 997 kgm3 and the specific gravity of solid water ice at 0 c is 0.98. 100 kg of
an electric moter drivers an axial fan assuming that the desired air velocity 65degree f existing the fan is 50mph and
Explain what is meant by an overall heat transfer coefficient and explain what is mean by failing and what its effect will be on the value of the overall heat transfer coefficient.
A plane can fly 299 mph in still air. If it can fly 180 miles downwind in the same amount of time it can fly 119 miles upwind, find the velocity of the wind.
glycerin is to be pumped at the rate of 250 gpm throughout a flow system which consist of 1500 feet of horizontal 4
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