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A gas-turbine power plant operates on the simple Brayton cycle between the pressure limits of 100 and 800 kPa. Air enters the compressor at 30oC and leaves at 330oC at a mass flow rate of 200 kg/s. The maximum cycle temperature is 1400 K. During operation of the cycle, the net power output is measured experimentally to be 60 MW. Assume constant properties for air at 300 K with cv = 0.718 kJ/kg.K, cp = 1.005kJ/kg.K, R = 0.287 kJ/kg.K, k = 1.4.
(a) Sketch the T-s diagram for the cycle (put labels and appropriate information)
(b) Determine the isentropic efficiency of the turbine for these operating conditions
(c) Determine the cycle thermal efficiency
(d) Determine the rate of entropy generation (in kW/K) in the turbine. Assume there is no heat loss.
Find the needed length of the heated section of the tube and find the temperature of the water when it exits the heated section of the tube.
Determine the thermal efficiency of the cycle and the net specific work. Assume each turbine stage isentropic efficiency to be 99% and assume the FWH is open.
Compare the time and cost of using the following three alternative methods for casting the concrete for the wall: 1) direct chute 2) pumped 3) crane and bucket.
Write a literature review and the title is "the effect of fluid cooling on the performance of building integrated photovoltaic thermal systems. Using some BIPVT prototypes measure their thermal and electrical output and dtermine their effectiveness"
Prepare a 3-input, 5 bit multiplexer that fits in a 24-pin IC package. Write the truth table and draw a logic diagram and logic symbol for the multiplexer.
What tube diameter is required for the model if dynamic similarity is to be maintained between model and prototype?
The die characteristic is Q_x = 0.0015p where p is the head pressure in psi. Determine the flight angle that maximizes the flow rate Q_x and graph it.
The effect on temperature and density of air under adiabatic compression, Air is going through a compressor
A successive approximation ADC has 4 bits and a reference voltage of 10 V. If the input voltage is 2.8 V, describe each step the ADC undergoes to determine the value of the 4 bits. What input voltage will be computed by the ADC?
Determine the resultant of the three forces F1 = 2.0i + 3.3j - 2.6k; F2 = - i + 5.2j - 2.9k; and F3 = 8.3i - 6.6j + 5.8k, which are concurrent at the point (2, 2, -5.). The forces are in Newton's and the distances are in meters.
Find the safe applied torque that can be transmitted by the shaft ABCD, if the maximum shear stress in the hollow section is 47 MPa and G = 82.5 GPa.
A first class lever in static equilibruim has a 50 lb resistance force and 15 lb effort force. The lever's effort force is located 4 ft from the fulcrum. What is the actual mechanical advantage of the system?
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