Consider an ideal cycle for gas turbine engines. What is this cycle called? Explain all of the processes in this cycle.
Consider an ideal cycle for gas turbine engines. What is this cycle called? Explain all of...
Consider an ideal cycle for compression ignition engines. What is this cycle called? Explain all of the processes in this cycle.
Thegas turbine cycle shown below is used as an automotive engine. Inthe first turbine, the gas expands to pressure P5, just low enough for this turbine todrive the compressor. The gas is then expanded through thesecond turbine to drive the wheels. Data for the engine are shownon the figure. Assume all processes are ideal. Determine theintermediate pressure P5, the net specific work output from the engine, and the massflow rate through the engine. Also find the air temperatureentering the burner...
Consider the combined gas-steam power cycle,The topping cycle is a gas-turbine cycle that has a pressure ratio of 8.Air enters the compressor at 300K and the turbine at 1300K.The isentropic efficiency of the compressor is 80 percent, and that of the gas is 85 percent.The bottoming cycle is a simple ideal Rankine cycle operating between the pressures limits of 7 MPa and 5 KPa.Steam is heated in a heat exchanger by the exahust gases to a temperature of 5000C.The exhaust...
3: Consider the Rankine power cycle using vapor and liquid. a: Explain what kinds of problems the Carnot Vapor Cycle has. b: Draw a T-s diagram for the ideal Rankine cycle and label each process explicitly c: There is a method to lower the condenser pressure (or to decrease the average low temperature) in order to improve the efficiency of the ideal Rankine cycle. Explain its advantages and disadvantages explicitly. d: Name the gas power cycle which uses the same...
Problem4 (a) (40 points) A combined gas-steam powe cycles. The ideal Brayton and Rankine plant operates on Rankine cycle has a reheater. The Brayton cycle operates on a gas- of the gas-turbine cycle 1400 K The 15MPa to ercooling, reheating, and regeneration cycle. The pressure ratio 300 K for compressor stages is do Air enters compressors a combustion gases leaving the lower pressure gas turbine are used to heat the steam at C in a heat exchanger. The combustion gases...
Problem B: Diesel Cyele The Diesel cycle represents the ideal cycle for Compression-Ignition engines. The ideal Diesel cycle is described by the four-step cycle (process): 1-2: Isentropic Compression from Bottom-Dead-Center (BDC) to Top-Dead-Center (TDC), 2-3: Constant pressure heat addition (n) to 3-+4: Isentropic Expansion from vy to V 4+1: Constant volume heat rejection (Qout) at TDC (). (a) Sketch the P vs. v diagram for the Diesel cycle (label all key parameters and processes). [7 pts] (b) Sketch the T...
Question 29 LO3 (1 pt) Gas turbine engines require special metals and alloys for the various parts of the turbine which makes them more expensive. False True Question 30 L03 (1 mark) Compression of the air in a compressor causes the air temperature to increase. True False > Moving to another question will save this response Question 3 L03 (2 marks) What are the four processes making up the simple ideal Braytos cycle? Use the hardware diagram provided as a...
The ideal Otto cycle, shown in the figure above, is the cycle used by gasoline engines to generate useful work. It consists of an adiabatic compression from step 1 to 2, followed by an isochoric increase in pressure from step 2 to 3, followed by an adiabatic expansion from 3 to 4, and finally an isochoric decrease in pressure from step 4 to 1.Consider an Otto cycle that works on a monoatomic ideal gas (γ= 5/3,cV= 3R/2), initially at a...
Consider a steam power plant operating on the simple ideal Rankine cycle. Steam enters the turbine at 4 MPa and 400 degrees C and is condensed in the condenser at a pressure of 65 kPa. Determine the thermal efficieny of this cycle.
1. A combined gas-steam power cycle uses a single gas turbine cycle for the air cycle and a simple Rankine cycle for the water vapor cycle. Atmospheric air enters the compressor at a rate of 88.2 lbm / s, at 14.7 psia and 59 ° F, and the maximum gas cycle temperature is 1,742 ° F. The pressure ratio in the compressor is 7. The isentropic efficiency of both the compressor and the turbine is 80%. Gas exits the heat...