4. An Ideal diesel engine has a compression ratio of 20 and uses air as the...
thermodynamic 2. A ste am power plant operates on an ideal regenerative Rankine cycle. Steam enters the turbine at 10 MPa and 500°C and is condensed in the condenser at 10 kPa. Steam is extracted from the turbine at 0.5 MPa to heat the feedwater in an open feedwater heater. Water leaves the feedwa ter heater as a saturated liquid. The plant has a net power output of 150 MW. Show the cycle on a T-s dingram, and determine (a)...
An aircraft engine operates on a simple ideal Brayton cycle with a pressure ratio rp of 9. Heat is added to the cycle at a rate of 490 kW; air passes through the engine at a rate of 1.1 kg/s; and the air at the beginning of the compression is at P1 = 71 kPa and T1 = 0 oC. Use constant specific heats at room temperature. The properties of air at room temperature are cp =1.005 kJ/kg.K and k...
Tutorial Questions 1.1. Water is the working fluid in an ideal Rankine cycle. The condenser pressure is kPa, and saturated vapor enters the turbine at 10 MPa. Determine the heat transfer rates, in kJ per kg of steam flowing, for the working fluid passing through the boiler and condenser and calculate the thermal efficiency.2. Water is the working fluid in an ideal Rankine cycle. Saturated vapor enters the turbine at 16 MPa, and the condenser pressure is 8 kPa ....
4. A4.6 L spark ignition engine operates on the ideal Otto cycle with a compression ratio of 10. At the beginning of the compression process the air is at 107 kPa and 21 C. The maximum cycle temperature is 1116°C. Accounting for variable specific heats, determine: (a) the heat addition per cycle in kJ. Ans: 3.368 kJ (b) the net work per cycle in kJ. Ans: 1.907 kJ (c) the mean effective pressure in kPa. Ans: 460.6 kPa (d) the...
Thermodynamics Thermodynamics II Assignment 5 Instructor: Mohd AWAD 999999REPPI A steam power plant operates on an ideal reheat-regenerative Rankine cycle and has a net power output of 80 MW. Steam enters the high-pressure turbine at 10 MPa and 550°C and leaves at 0.8 MPa. Some steam is extracted at this pressure to heat the feedwater in an open feedwater heater. The rest of the steam is reheated to 500°C and is expanded in the low-pressure turbine to the condenser pressure...
2) A steam power plant operates on an ideal regenerative rankine cycle with superheated steam leaving the boiler, entering the turbine at 10 mPa,600C. X fraction of steam is extracted from the turbine at 0.6 mPa pressure for the high pressure open feedwater heater. Then x fraction more of steam is extracted from the turbine at 0.2 mPa pressure for the low pressure open feedwater heater . The condenser pressure in the cycle is 5 kPa. The mass flow rate...
An aircraft engine operates on a simple ideal Brayton cycle with a pressure ratio of 14.2. Heat is added to the cycle at a rate of450 kW; air passes through the engine at a rate of 1.20 kg/s; and the air at the beginning of the compression is at70 kPa and 0°C. Determine the power produced by this engine and its thermal efficiency. Use constant specific heats at room temperature. Wnet kW Round your final answer to one decimal place....
1. A Steam Power Plant that operates on an ideal regenerative Rankine Cycle with an open feedwater heater is considered. The turbine inlet conditions are 6 MPa, 450 C. The regeneration pressure is 0.4 MPa. The condenser pressure is 20 kPa. a) Draw the T-s diagram, and the sketch of the steam power plant. b) Calculate the low pressure pump work. c) Calculate the high pressure pump work. d) Calculate the fraction of the steam extracted from the turbine for...
C and D please. AGL Energy is expanding the capacity of the Liddell Power Station. The plan is to commission a steam turbine power plant that operates on a regenerative Rankine cycle and has a net power output of 150 MW where steam enters the turbine at 10 MPa and 500°C, and the condenser at 10 kPa. The isentropic efficiency of the turbine is 80 percent, and that of the both pump is 95 percent. Steam is extracted from the...