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Task 1 - The slider-crank mechanism shown below has a crank radius which is 125mm the mechanism rotates at a speed of 500RPM.
Use a vector diagram to determine the velocity of the piston at the position given in the diagram. Determine the angular velocity of link AB about point B.
Task 2 - A two-cylinder engine has a stroke length of 0.3m. The cranks are set at right angles and the mass, which may be considered to be rotating at each crank pin, is 125kg. The planes of rotation of the cranks are 0.5m apart and they are symmetrically placed with respect to two flywheels that are 1m apart.
Use the table below and a vector diagram to find the magnitude and angular positions of the balance masses required in the flywheels at a radius of 0.4m.
Task 3 - (Only b) A flywheel has a moment of inertia of 20 kg/m2 and rotator at a speed of 25 rads/s. This is coupled with a second flywheel which is initially rotating at 35 rads/s and has a moment of inertia of 15 kg/m2.
(a) Determine the rotational speed when the clutch plates are engaged.
(b) Calculate the energy lost during engagement.
air enters an insulated turbine operating at a steady state at 5 bar 1000k and exits at 1 bar 500k. neglecting ke and
A fan jumps into a swimming pool in an attempt to drown her sorrows. She is able to float on her back...in a position that is neutrally buoyant...so that she can continue to breathe through her mouth. Believing that 70% of her body is composed of wat..
During an experiment conducted in a room at 25°C, a laboratory assistant measures that a refrigerator that draws 2 kW of power has removed 30,000 kJ of heat from the refrigerated space, which is maintained at -30°C. The running time of the refrige..
a container initially at 323 k is heated to a final temperature of 573 k. if the device contains a mixture of nitrogen
An engine, having 90% efficiency, produces 25 MW power. Calculate the power produced for the same inlet conditions and exit pressure if efficiency of engine is increased to 98% by redesigning it.
Where could the thermocouple be placed so that the calibration is insensitive to whether the thermal condition is uniform surface temperature or uniform surface heat flux?
the 3 kg ball is thrown so that it travels horizontally at 10ms when it strikes the 6 lb block as it is traveling down
titanium is stiffer than aluminum has a lower thermal expansion coefficient than aluminum and has a higher melting
Show that eventually the person's capital grows at 20% per annum.
Use the function for thermo data evaluation in the matlab toolbox to compute species thermo data and kp of the reaction 2CO2= 2CO + O2 for T=3000K. Solve the equilibrium concentration manually by solving the progress variable first (Show the procedur..
Calculate the surface temperature of the conductor - represent the radiation heat trans- fer rates for N shields and no shields, respectively.
Superheated steam at 400°C and saturated water with a quality of 40% enter a mixing chamber at a pressure of 100 kPa. What is the required ratio of mass flow rate of superheated steam to mass flow rater of saturated water if at the exit to the mixin..
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