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High pressure steam is at 8Mpa and 600C it passes through an isentropic turbine and the pressure drops to 6MPa and 350C. Find the total power output of all three turbines.
Determine the horizontal force required (a) to start the car moving, (b) to keep the car moving at a constant speed. Neglect rolling resistance between the wheels and the rails.
Hot combustion gases enter a gas turbine at 1 Mpa and 1500 k at a rate of 0.5 kg/s the gases exit at 0.2 MPA and 900 k if heat is input at 15 kj/s find the Carnot efficiency and the power of the gas
How many fissions occurred? (b) Three months after the accident, what is the rate (W) at which energy is released by all the fission products left in the building?
A boiler shell is 1.5 in diameter and has plates of thickness 10mm. If the efficiency of the longitudinal joint is 80% then calculate the working pressure assuming a safe working pressure of 50 N/mm
(a) How much 235^U is consumed per year (in g/y) to produce enough electricity to continuously run a 100 W light bulb? (b) How much coal (in g/y) would be needed (coal has a heat content of about 12
If the volumetric efficiency if found to be 110% when the engine is running at 3400 rpm and at standard air conditions, determine the mass flow of intake air in kg/min.
Determine. a. The velocity of cylinder A as it strikes the ground, b. the total distance that block B moves before coming to rest.
You should determine the velocity as a function of r, R. viscosity, and pressure gradient. Draw the velocity distribution and the shear stress distribution vs. r for this flow.
What are the measured (Tg) values for (i) polyethylene, (ii) polyvinyl chloride, and (iii) polymethyl methacrylate? Are the (Tg) values constants?
Specify the number of degrees of freedom at each of the points- that is, the number of externally controllable variables that need be specified to completely define the system.
Determine the mass fractions of alpha and beta phases. Determine the mass fractions of primary alpha and eutectic micro-constituents. Determine the mass fraction of eutectic alpha.
Determine the stress generated at section aa of the nail which is located a vertical distance d=4 cm from the applied force. The geometry of the nail at section aa is a circle with a diameter of 14m
Calculate the height above the waterline of its center of Gravity (G). Could you demonstrate the steps involved in solving this problem?
How much work did the forces of friction and air drag do on the skier? (There are no other forces but friction, air drag, and gravity.
Find the length of time required for the tank to empty (i.e. fluid level = h ) if the loss coefficient for the tank-pipe interface is K(L) , and the pipe's friction factor is f.
If Fred plans to work overseas for 5 years and he considers the interest rate to be about 8%. Determine which offer would be better assuming the cost of living in both the countries are the same.
Compute the cooling load per square foot of wall assuming standard design conditions and LST equal to 1700 hours.
Given the efficiency of 80 lm/W for a fluorescent light, calculate the wattage in fluorescent fixtures needed to replace 3000 watts of incandescent light sources that are 5 feet above the work surfa
Determine the maximum and minimum values of T may have without causing the crank to rotate in either direction. The coefficient of frictionµbetween the shaft and the bearing surface of the cra
What is the pressure at the end and beginning of the expansion. Determine heat transfer and work. Calulate the Thermal efficiency.
Show the process on a T-s diagram. Calculate the final temperature in K. Calculate the net specific work done by the helium in Kj/kg.
If this gear is initially turning at 20 rad/s determine the angular velocity of gear B when t=2s. Radius of gear A=0.05m and radius of gear B=0.15m.