GIVEN: We know the mass flow rate of the steam to be 1.093 kg/sFIND THERMAL EFF as well Required informationNOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.The gas-turbine portion of a combined gas-steam power plant has a pressure ratio of 16. Air enters the compressor at300 K at a rate of 12 kg/s and is heated to 1500 K in the combustion chamber. The combustion gases leaving the gasturbine are used to heat the steam to 400°C at 10 MPa in a heat exchanger. The combustion gases leave the heatexchanger at 420 K. The steam leaving the turbine is condensed at 15 kPa. Assume all the compression and expansionprocesses to be isentropic. For air, assume constant specific heats at room temperature.Determine the net power output. (You must provide an answer before moving on to the next part.)The net power output iskW.

⇒given data;⇒pressure ratio (r)=P2P1=16⇒inlet temeperature of air in compressor (T1)=300K⇒mass flow…

Answered: NOTE: This is a multi-part question.…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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2. A steam power plant operates on the Rankine cycle in which the steam enters the turbine at 16 MPa and 600°C and the condensate leaves the condenser at 10 kPa. If the isentropic efficiency of the turbine is 87 percent and the isentropic efficiency of the pump is 85 percent, determine (a) the thermal efficiency of the cycle and (b) the net power output of the plant for a mass flow rate of 15 kg/s.
Consider an 80 MW coal-fired steam power plant that runs on a reheat Rankine cycle. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1 MPa and 500°C. Steam leaves the condenser as a saturated liquid at 10 kPa. Determine the mass flow rate of steam from the boiler. in metric tons per hour
Consider a steam power plant operating on a simple Rankine cycle. Steam enters the turbine at 15 MPa and 650°C and is condensed in the condenser at a pressure of 15 kPa. Assuming an isentropic efficiency of 84% and 86% for the pump and turbine, respectively, determine the actual thermal efficiency (%). (Use 2 decimal places for the final answer.)
Consider a steam power plant with a reheat Rankine cycle. The steam enters the high pressure turbine at 16 MPa and 550 ° C, and condenses in the condenser at 10 kPa. If the moisture content of the steam at the outlet of the low pressure turbine should not exceed 5%, determine: a) The pressure to which the steam should be reheated. b) The thermal efficiency of the cycle
In the preliminary design of a power plant, water is chosen as the working fluid and it is determined that the turbine inlet temperature may not exceed 520C. Based on expected cooling water temperatures, the condenser is to operate at a pressure of 0.06 bar. Determine the steam generator pressure required if the isentropic turbine efficiency is 80% and the quality of steam at the turbine exit must be at least 90%.
Steam enters the high-pressure turbine of a steam power plant that operates on the reheat Rankine cycle at 10 MPa and 550°C and leaves at 4 MPa. Steam is then reheated to 500°C before it expands to a pressure of 40 kPa. The enthalpy of steam is 3190 kJ/kg at the exit of the high-pressure turbine, and 2550 kJ/kg at the exit of the low-pressure turbine. Disregarding the pump work, the cycle efficiency is
Consider a 210-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the turbine at 10 MPa and 500C and is cooled in the condenser at a pressure of 10 kPa. Assuming an isentropic efficiency of 85 percent for both the turbine and the pump, determine the actual mass flow rate (kg/s) of the steam. (Use 2 decimal places for the final answer.)
Consider an 80 MW coal-fired steam power plant that runs on a reheat Rankine cycle. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1 MPa and 500°C. Steam leaves the condenser as a saturated liquid at 10 kPa. Calculate the plant monthly consumption of coal if its heating value is 23,247 kJ/kg and the boiler has an efficiency of 87%. in metric tons
Consider a 250-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the turbine at 10 MPa and 525°C and is cooled in the condenser at a pressure of 10 kPa. Show the cycle on a T-s diagram with respect to sat¬uration lines, and determine:(a) the quality of the steam at the turbine exit, (b) the thermal efficiency of the cycle, and(c) the mass flow rate of the steam.
Steam enters the turbine of a cogeneration plant at 6 MPa and 550 degrees C . One-third of the steam is extracted from the turbine at 1400 kPa pressure for process heating. The remaining steam continues to expand to 20 kPa. The extracted steam is then condensed and mixed with feedwater at constant pressure and the mixture is pumped to the boiler pressure of 6 MPa The mass flow rate of steam through the boiler is 30 kg/s. Disregarding any pressure drops and heat losses in the piping, and assuming the turbine and the pump to be isentropic, determine (a) the net power produced(b) the utilization factor of the plant, (c) the exergy destruction associated with the process heating, and (d ) the entropy generation associated with the process in the boiler. Assuming a source temperature of 1000 K and a sink temperature of 298 K
Scenario (1)The first steam power plant operates on an ideal reheat Rankine cycle. Steam enters the first turbine at 8 MPa and 500 C and leaves at 3 MPa. Steam is then reheated at a constant pressure to 500 C before it expands to 20 kPa in the low-pressure turbine. Assuming that heat is being added to the boiler from a high temperature source at 1800 K and the condenser is transferring heat to a temperature sink at 300 K. Task 1 Investigate the effect of changing turbine efficiency on the overall thermal efficiency of the thermodynamic cycle. (Hint: You will assume different values for the isentropic turbine efficiency such as: 70%, 80%, 90%, 95%, and 100%, then observe how it will change the thermal efficiency of the cycle). Representing the results in a plot is recommended.
Consider a steam power plant operating on the ideal Rankine cycle. Steam enters the turbine at 3 MPa and 350°C and is condensed in the condenser at a pressure of 10 kPa. Determine the thermal efficiency of this power plant, the thermal efficiency if steam is superheated to 600°C instead of 350°C, and the thermal efficiency if the boiler pressure is raised to 15 MPa while the turbine inlet temperature is maintained at 600°C. Draw the T-S diagram of each condition.

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