A Carnot vapor power cycle operates with water as the working fluid. Saturated liquid enters the boiler at 1400 lbf/in.?, and saturated vapor enters the turbine (state 1). The condenser pressure is 1.2 Ibf/in.2 The mass flow rate of steam is 1 x 10’ lb/h. Data at key points in the cycle are provided in the accompanying table. State p (lbf/in.2) h (Btu/lb) 1 1400 1174 2 1.2 758.3 3 1.2 446.5 4 1400 598.8

A Carnot vapor power cycle operates with water as the working fluid. Saturated liquid enters the boiler at 1400 lbf/in.?, and saturated vapor enters the turbine (state 1). The condenser pressure is 1.2 Ibf/in.2 The mass flow rate of steam is 1 x 10’ lb/h. Data at key points in the cycle are provided in the accompanying table. State p (lbf/in.2) h (Btu/lb) 1 1400 1174 2 1.2 758.3 3 1.2 446.5 4 1400 598.8

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

See similar textbooks

Similar questions

Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 lbf/in2 and 1400°F. The condenser pressure is 2 lbf/in.2 The net power output of the cycle is 250 MW. Cooling water experiences a temperature increase from 60°F to 76°F, with negligible pressure drop, as it passes through the condenser. (a) the mass flow rate of steam, in Ib/h. (b) the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. (c) the percent thermal efficiency. (d) the mass flow rate of cooling water, in Ib/h.
Question 4 a) A power plant based on the ideal Rankine cycle has a net power output of 10 MW.Superheated steam enters the turbine at 10 MPa, 500 (Degree)C. The condenser pressure is 15 kPa.Determine:i) the mass flow rate of the steam.ii) the rate of heat input to the cycle.iii) the thermal efficiency.
Steam at 4800 lbf/in.2, 1000 deg F enters the first stage of a supercritical reheat cycle including two turbine stages. The steam exiting the first-stage turbine at 600 lbf/in.2 is reheated at constant pressure to 1000 deg F. Each turbine stage and the pump have an isentropic efficiency of 85%. The condenser pressure is 1 lbf/in.2 If the net power output of the cycle is 100 MW, determine (a) the rate of heat transfer to the working fluid passing through the steam generator, in MW. (b) the rate of heat transfer from the working fluid passing through the condenser, in MW. (c) the cycle thermal efficiency.
A Rankine cycle with reheating has a throttle pressure of 135 bars at the turbine inlet and 28 bars reheat pressure, the throttle and reheat temperature of the steam is 540 degree celsius, condenser pressureis 0.034 bar, mass flow rate of steam is 12 kg/sec. Draw the T-S and Schematic diagram of cycle and determine the following: d. The steam rates e. Heat rate of the cycle f. Pump Work g. Turbine Work
Question 4 a) A power plant based on the ideal Rankine cycle has a net power output of 10 MW.Superheated steam enters the turbine at 10 MPa, 500 C. The condenser pressure is 15 kPa.Determine:i) the mass flow rate of the steam.ii) the rate of heat input to the cycle.iii) the thermal efficiency.
PLEASE ANSWER ALL AND SHOW COMPLETE SOLUTION. 1. Steam is the working fluid in an ideal Rankine cycle. The saturated vapor enters the turbine at 8.0 MPa and saturated liquid exits the condenser at a pressure of 0.008 MPa. The net power output of the cycle is 100 MW. Determine for the cycle (a) the thermal efficiency, (b) the mass flow rate of the steam, in kg/h, (c) the rate of heat transfer, into the working fluid as it passes through the boiler, in MW, (d) the rate of heat transfer, from the condensing steam as it passes through the condenser, in MW, (e) the mass flow rate of the condenser cooling water, in kg/ h, if cooling water enters the condenser at 15 DEGREE CELCIUS and exits at 35 DEGREE CELCIUS.
Steam enters the turbine of a steam power plant, operating on Rankine cycle, at 10 bar, 300oC. The condenser pressure is 0.1 bar. The steam leaving the turbine is 90% dry. Calculate the adiabatic efficiency of the turbine and the cycle efficiency. Also, draw a suitable h-s diagram. Neglecting pump work
Water is the working fluid in an ideal Rankine cycle. Superheated vapor enters the turbine at 8 MPa, 480oC. The condenser pressure is 8 kPa. The net power output of the cycle is 100 MW. Draw and label the schematic diagram and the pV and TS planes. Determine for the cycle (a) the rate of heat transfer to the working fluid passing through the steam generator, in kW. (b) the thermal efficiency. (c) the mass flow rate of condenser cooling water, in kg/h, if the cooling water enters the condenser at 15 degrees celcius and exits at 35 degrees celcius with negligible pressure change
1. A reheat steam cycle has 13,580 kPa of throttle pressure at the turbine inlet and a 37.50308414 atm reheat pressure, the throttle and reheat temperature of the steam is 1302 R, condenser pressure is 4.3 kPa. Determine the difference between the simple Rankine cycle efficiency and the reheat Rankine cycle efficiency, in percent.
1. In a Rankine cycle, steam enters the turbine at 2.5 MPa and condenser at 50 kPa, what is the thermal efficiency of the cycle?At 2.5 MPa: hg = 2803.1 kJ/kg sg = 6.2575 kJ/ kg – KAt 50 kPa: sf = 1.0910 sfg = 6.5029hf = 340.49 hfg = 2305.4vf = 0.0010300
Question # 1 The networkoutput and the thermal efficiency for the Carnot and the simple ideal Rankine cycles with steam as the working fluid are to be calculated and compared. Steam enters the turbine in both cases at 5 MPa as a saturated vapor, and the condenser pressure is 50 kPa. In the Rankine cycle, the condenser exit state is saturated liquid and in the Carnot cycle, the boiler inlet state is saturated liquid. Draw the T-s diagrams for both cycles.
Using T- diagrams , explain why superheating and reheating is necessary in a vapor power cycle from the functional perspective . Also show how it helps improve the efficiency of the cycle .