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In a regenerative steam employing three closed feed heaters the steam is supplied to the turbine at 42 bar and 503 tt and is exhausted to the condenser at 0.035 bar. The bleed steam for feed heating is taken at pressures of 15. 4. and 0.5 bar. Assuming ideal processes and neglecting pump work, calculate:
(i) the fraction of the boiler steam bled at each stage;
(ii) the power output of the plant per unit mass flow rate of boiler steam;
(iii) the cycle efficiency.
Which tool is better for fine boring : polycrystalline diamond or carbide tool ?
1. In ionic materials, how does the size of the component ions affect the extent of elec- tronic polarization? 2. Can a material have an index of refraction less than unity? Why or why not?
steam in a piston-cylinder assembly undergoes a polytropic process with n2 from an initial state where p 500 psia and
Explain glass transition temperature? Present some of the key properties and typical uses of Al2O3? What are main ingredients used in making Pig Iron and how is the oxygen removed?
Calculate the vacancy concentration in aluminum at 50%, 70%, and 90% of TMP=923 K. Gvf = 0.66 eV, and k = 8.62 x 10-5 eV/K. Calculate ln (nv/N) and 1/T, and plot on a linear scale (hint: should be a straight line).
the top surface of the passenger car moving at a velocity of 70 kmh is 2.8 m wide and 8 m long. the top surface is
Construct the phase diagram for hypothetical metals A and B, between 20°C (room temperature) and 700°C, given the following information: the maximum solubility of B in A is 4wt% B, occurring at 420°C; an intermetallic compound, AB, exists at 30wt%B; ..
The compound system in the sketch below contains a gas (Cv0 = 2.5 mR) on both sides of an internal wall. As heat is transferred across the wall, the piston moves to the right until the gases obtain thermal equilibrium at T2. During this process the s..
A river flowing steadily at a rate of 240 m3/s is considered for hydroelectric power generation. It is determined that a dam can be built to collect water and release it from an elevation difference of 50 m to generate power. Determine how much po..
You will first adjust the FIFO sizes so no data is lost. Then, you will redesign the system to implement blocking semaphores.
you are to design a balloon capable of lifting 200 kilograms the mass of the gas in the balloon must be 200 kilograms
a car starts from rest and accelerates at a constant rate until it reaches 85 mihr in a distance of 110 ft at which
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