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Design a fuel intake system for a large dual-fuel CI engine to be used in a poor under- developed country. The engine is to use only enough diesel oil to promote ignition, while using some less costly main fuel. Draw a schematic, and give engine values of dis- placement, speed, and volumetric efficiency. Choose an appropriate main fuel and give the flow rates of both fuels. What is the overall air-fuel ratio? State all assumptions you make.
a 2 cm horizontal jet of water with a velocity of 15 ms is spraying onto a vertical plate attached to a cart moving
a 19th-century piston engine ran on steam. the steam supply is at 5 bar and 350oc. the steam discharges to the
the roller-coaster track shown is contained in a vertical plane. the portion of track between a and b is straight and
a solid cylindrical workpiece made of 5052-o aluminum is 12 cm high and 8 cm in diameter. assuming there is no
1. a hydro-electric plant is used to convert the potential energy of the water behind the dam into electricity. the
The cord is attached to the pin at C and passes over the two pulleys at A and D. The pulley at A is attached to the smooth collar that travels along the vertical rod. Determine the velocity and acceleration of the end of the cord at B if at the ins..
R134a flowing at 12 m/s enters a 25 mm diameter tube at a quality of 15%, at 36 Celsius and exits the tube at 10 bars as a saturated liquid. Determine (a) the mass flow rate of the R134a in kg/s, (b) the velocity of the R134a at the exit in m/s and (..
steam with a mass flow rate of 20 kgs enters an adiabatic turbine at a pressure of 10.0 mpa and a temperature of
A vibrating body is supported by six isolators each having stiffness 32000N/m and six dashpots having damping factor as 400 N-s/m. The vibrating body is to be isolated by a rotating device having an amplitude of 0.06 mm at 600 rpm. Take m = 30 kg...
the coefficient of friction between the load and the flat-bed trailer shown is 0.4. knowing that the speed of the rig
Consider the following one-commodity Samuelson model. e = (1, 1), u(x0 , x1) = min(3x0 + x1, 2x0 + 5x1). (a) Show the set of feasible stationary allocations in a diagram. Show indifference curves in the diagram.
a tennis racket hits a tennis ball with a force of where 1130 470 and is the time in milliseconds. the ball is in
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