List and explain in details ALL of Traction Lift components with complete schematic.(10mrks)

A substance contained in a flexible, well-insulated container undergoes an expansion process from an initial state with a specific volume of 10 ft3 /lb and pressure of 12 lbf/in2 to a final state with a specific volume of 24 ft3 /lb. During the process, the substance’s pressure varies according to Equation 1 where pi is the substance’s initial pressure and vi is the substance’s initial specific volume. The substance’s internal energy decreases by 500 Btu during the process. Neglect potential and kinetic energy changes.

a. Determine the specific work done on the substance in Btu/lb.

b. Determine the mass of the substance in lb.

? = (??/ 2) ⋅ (1 + (??/?) )

A steam power plant operates on a regenerative Rankine cycle with two feedwater heaters, one closed and one open. Steam enters the turbine at 12.5 MPa and 550ºC and exhausts to the condenser at 10 kPa. Steam is extracted from the turbine at 1 MPa for the closed feedwater heater and 0.8 MPa for the open one. The feedwater is heated to the condensation temperature of the extracted steam in the closed feedwater heater. The extracted steam leaves the closed feedwater heater as a saturated liquid, which is subsequently throttled to the open feedwater heater. Show the cycle on a T-s diagram with respect to saturation lines, and determine(a) the mass flow rate of steam through the boiler for a net power output of 350 MW and (b) the thermal efficiency of the cycle.

The atmospheric air 32 °C dry bulb temperature and 70% relative humidity supplied to the cooling coil at a rate of 45m3 /min. The air cooling to the saturated state and leaving at a temperature of 16 °C. Determine: (10 points) a- Specific humidity at each state. b- Wet bulb and dew point temperatures at the final state c- Final relative humidity. d- Mass of water condensed. e- Rate of

heat removed from the air in kW. f- Show the process on Psychrometric chart.

1. An annealed aluminum alloy slab with a thickness of 12 mm and width of 1m is to be cold rolled to a thickness of 9 mm using 2-high rolls with roll diameter of 1m. The rolls have a coefficient of friction of 0.08 and they are rotating with a speed of 18 RPM. The aluminum has an entrance speed of 50 m/min and a width that does not change as a result of drawing. The strength coefficient K =240 and strain hardening exponent n =0.15. Please answer the following:

1. Is the proposed reduction possible?
2. Calculate the rolling forward slip.
3. Calculate the rolling force (N).
4. Find the total power (W) consumed by the process.

The mass-spring-damper system has a 2 kg block is displaced by an amplitude of 50 mm and
released. Ifthc phase angle ofrcsponse is 84.17o, how many cycles (m) will be executed beforc
the amplitude is reduced to I mm. What are the undamped natural frequency m« and spring
constant k ifthc period ofdamped oscillation rs is 0.3 scc.

Blood flows through a ventricular assist device (a pump) at a rate of 100 mL/s. It enters at a pressure of 110 kPa, temperature 36.50°C, and speed 0.25 m/s. It leaves at 125 kPa, temperature 36.52°C, and speed 0.40 m/s. Heat transfer from the blood in the pump is negligible. The outlet is 40 mm above the inlet. (Note: the thermophyhsical properties of blood may be approximated by properties of liquid water at 37°C.) (a) Calculate the rate of work done on the fluid by the pump. [13] (b) Calculate the fraction of pump work converted to enthalpy, kinetic energy, and potential energy. Comment on the relative importance of these effects. [4] (c) What fraction of pump work is used to raise the temperature of the blood? [3] (d) Calculate the minimum power required to pump the blood with the flow rate and pressure rise given here. Why is higher power required in practice? [5]

3) A torsion spring is used in a hand-held spring clamp. The jaws of the clamp are 1.5 inches from the pivot. The spring angle is 45° when the clamp is closed and 0° when the clamp is open. Determine torsional spring constant, clamping force when closed and clamping force when open. Use units of torque/rev for torsional spring constant. Include leg length in Na calculations.

d = 0.078 in OD = 0.396 in Nb = 3.25 θfree = 90° music wire legs L1 = L2 = 1.5 in

kθ _____________ Fclosed _____________ Fopen _____________

A 400-MW steam power plant, which is cooled by a nearby river, has a thermal efficiency of 33 percent. (i) Sketch an appropriate illustration for this heat engine clearly showing the heat source and sink. (ii) Determine the rate of heat transfer to the river water. (iii) Will the actual heat transfer rate be higher or lower than this value? Why?

How applied mechanics terminologies such as moment, moment of inertia and frictional matters are involved to theoretically design hydro power and wind mills for renewable energy supply? Define the terminologies in their usual applications