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1. Octane (C8H18) enters an engine and burns with air to give products with the dry molar analysis of CO2, 10.5%; CO, 5.8%; CH4, 0.9%; H2, 2.6%; O2, 0.3%; N2, 79.9%. Determine the equivalence ratio.
2. Methane (CH4) burns with air to form products consisting of CO2, CO, H2O, and N2 only. If the equivalence ratio is 1.25, determine the balanced reaction equation.
3. Liquid octane (C8H18) at 778F, 1 atm enters a combustion chamber operating at steady state and burns completely with 50% excess dry air entering at 1208F, 1 atm. The products exit at 10608F, 1 atm. Determine the rate of heat transfer between the combustion chamber and its surroundings, in Btu per lbmol of fuel entering. Kinetic and potential energy effects are negligible.
The magnetic flux density within a bar of some material is 0.630 tesla at an Hfield of 5 X 105 A/m. Compute the following for this material: (a) the magnetic permeability, and (b) the magnetic susceptibility. (c) What type(s) of magnetism would you s..
Create parts and assembly of the Tool Post shown in the figure. Remember to profile and constrain (add dimension) your sketch for each model. Use appropriate solid modeling techniques and 3-D constraints as necessary.
Determine the minimum velocity needed to sustain the fuel cell at Tc = 77°C, and the associated location of the wire. The air and large sur- roundings are at Too = Tsur = 27°C and the fuel cell dissipates Eg = 11 W. The fuel cell emissivity is s = 0...
an ice-making plant working on a reversed carnot cycle heat pump removes 3.5kw heat from the ice which is maintained at
a instrument weighing 40lbf is being shipped in a container with foam packaging which has effective vertical stiffness
What is a double-reduction spur gear train and how would be useful in a commercial food waste grinder in which the final shaft rotates at between 40 and 44 rpm is to be designed. The input is from an electric motor running at 850 rpm and delivering 0..
write the equation of motion for a pendulum consisting of a thin 4kg stick of length l suspended from a pivot. how long
a satellite in earth orbit has a mass of 108 kg and is at an altitude of 1.99 106 m.a what is the potential energy of
air at 110 kpa and 50 c flows upward through a 6-cm-diamter inclined duct at a rate of 45 ls. the duct diameter is then
When train A is 6 km south of the crossing bridge, train B is 8 km east. Determine the shortest distance between the two trains and the time from these initial positions that they take to reach it.
the limb of a manometer is inclined at 12 0 to the horizontal. if the water column along the tube is 250 mm what
a well-insulated rigid tank contains 5 kg of a saturated liquid-vapour mixture of water at
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