Deduce an expression for work done for stage of a reaction turbine and determine the condition for maximum efficiency.
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- I am trying to find the mass flow rate that is extracted from the turbine I am getting nubers near 2.9 for a result. how do I solve this.In a Geothermal field, saturated steam at 5 MPa is available flowing at a rate of 90,000 kg/hr per extraction well. There will be two 25 Megawatts of steam turbine-generator units to be installed. Exhaust is at 7 kPa and the over-all efficiency of the the steam generator is 80%. How many wells has to be operated to drive the 2 units of steam generators at fulI capacity considering steam enters the turbine at 4.8 MPa? Sketch the plant schematic diagram and the t-s diagram.thermodynamics A steam enters the system with enthalpy of 3300 KJ/kg at 200 m/sand leaves with enthalpy at 2700 KJ/kg at 80 m/s. Find the work outputof the turbine.
- The steam rate to a turbine for variable output is controlled by a throttle valve in the inlet line.Steam is supplied to the throttle valve at 1,700 kPa and 225°C. During a test run, the pressure atthe turbine inlet is 1000 kPa, the exhaust steam at 10 kPa has a quality of 0.95, the steam flowrate is 0.5 kg/s, and the power output of the turbine is 180kW. 1. What are the heat losses from the turbine? 2. What would be the power output if the steam supplied to the throttle valve were expandedisentropically to the final pressure?4. Steam turbine with 80% stage efficiency receives steam at 7MPA and 550 deg C and exhausts as 20kPa. Determine the quality after turbine expansion. C. 1.08 D. 0.9696 A. 0.8643 B. 0.6914One kg of dry and saturated vapor enters to the turbine at 6.0 MPa. Steam leaves thisturbine stage at a pressure of 0.008 Mpa. Calculate the quality of steam at exit of turbine,heat rejected, heat added, cycle efficiency and engine efficiency.(Note: Draw the schematic and T-s diagram)
- A turbine operating in a continuous flow works adiabatically. The water vapor enters the turbine at a temperature of 650 C and comes out with 20 kPa pressure and 85% dryness. Find the mass flow rate (kg / sec) required to generate 10 MW of power from the system (ignore KE and PE changes)Q1 / A: Derive the steaay flow energy equation and reduce it for: a. A turbine ( Reversible Process) b. A pump ( Reversible Process) c. A nozzle ( Reversible Process) d. A throttling ( Irreversible Process) Assume that the working fluid is an ideal gas and the entrance and exit are at the same level. B- For a reversible adiabatic process prove the equation pvr = constant can apply for the relation between pressure and specific volume for a perfect gas. %3DPls answer thank you! Steam enters the turbine at the rate of 2.5 kg/s with enthalpy of 3200 kj/kg and exhaust enthalpy of 1100 kj/kg . Steam is extracted from the turbine at the rate of 1 kg/s for heating purposes with enthalpy of 2750 kj/kg. What is the turbine work in KW.
- Note: Show all your solutions in separate sheets as required. Indicate all of your answers on this page in the provided blank lines. 1. Using the Steam Tables, find and entropy of steam at the inlet and outlet of a boiler and heat added when subcooled water at pressure = 5 Mpaa (subcooled by 64 deg C measured at boiler inlet), is superheated to 100 deg C SH at the same pressure. Total flow volume rate of steam = 0.5 cu.m per sec. Indicate units.HANDWRITTEN and with given, required and solution. Engr. Darmis is tasked to design a frictionless and constant temperature steady-flow system that will be used for power generation using Nitrogen as its working fluid. The initial gage pressure is 110 pounds per square inch and the final volume is 170 cubic feet. If ninety-one pound-mass of the fluid gain 3.253 BTU/R of entropy per minute. Find the (a) initial volume, (b) temperature, and (c) Work. (d) If the heat is equal to 9940 BTU, how long did the process took place?(17 blanks) Calculate the efficiency of the Carnot Engine for ideal gas. Consider the figure below for a complete cycle of Carnot engine, where the cycle goes from ad->ab->bc->cd Carnot cycle Он TH Tc - V 02016 Pearson Education, Inc. processes: processes and segment ab & cd are the Where segments ad & bc are the and the volumes involved are Va, Vb, Vc, Vd, and the two temperatures TC and
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