The Steam Engine for a simple Rankine Cycle with super heat vapor steam power plant, drives 150 kW generator of 90% electrical efficiency. Steam rate, 6.7 kg per bhp-hr; steam pressure, 1,034.6 kPag, 55.6°C superheat; exhaust to condenser at 15.2 cm Hg abs. No feedwater heating. Motor driven boiler feed- pump. Other data are as follows: Enthalpy of steam at 1,034.6 kPag & 55.6°C sh = 2,919 kJ/kg; Enthalpy of steam at 15.2 cm Hg abs. (after isentropic expansion work) = 2,252 kJ/kg; Enthalpy of Condensate at 15.2 cm Hg abs (hf) = 252.8 kJ/kg; and Specific Volume of Condensate = 0.001019 m3/kg.

The Steam Engine for a simple Rankine Cycle with super heat vapor steam power plant, drives 150 kW generator of 90% electrical efficiency. Steam rate, 6.7 kg per bhp-hr; steam pressure, 1,034.6 kPag, 55.6°C superheat; exhaust to condenser at 15.2 cm Hg abs. No feedwater heating. Motor driven boiler feed- pump. Other data are as follows: Enthalpy of steam at 1,034.6 kPag & 55.6°C sh = 2,919 kJ/kg; Enthalpy of steam at 15.2 cm Hg abs. (after isentropic expansion work) = 2,252 kJ/kg; Enthalpy of Condensate at 15.2 cm Hg abs (hf) = 252.8 kJ/kg; and Specific Volume of Condensate = 0.001019 m3/kg.

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

Steam at 10 MPaa, 550 degrees celsius enters an ideal engine that has one stage of regenerative cycle; condenser pressure is 10kPaa and extraction of steam is at 1 MPa. Compute the following 6. Heat rate 7. Cycle Efficiency
Given in Table are the pressure and temperature of the steam as it enters the turbine as well as the pressure in the condenser. The given engine operates on a simple ideal Rankine cycle, calculate the unknowns in Table. Show solution Rankine Pressure of Temperature Pressure at the Net work Heat Thermal entering the Efficiency (n) in % the steam entering the entering the condenser system (WN) boiler (Qin) turbine (Rx) turbine (t+) in MPa Engine of the steam done by the in KJ/kg in KJ/kg (Pe) in kPa in °C A 3 350 75
In an ideal Rankine cycle, steam is generated at 4.1 MPa and 480 deg. C. The condenser is at 32 deg. C. Determine: a. The cycle thermal efficiency b. For the engine with the same end states, the thermal efficiency and steam rateuse the attached steam table below
A steam power plant operates between a boiler pressure of 58 bar and a condenser pressure of 0.05 bar Calculate for these limits the cycle etficiency for a Rankine cycle with dry saturated steam at entry to the turbine NB Answer in decimal and not percentage to 4 decimal places.
1. A reheat steam cycle has 13.65 MPa pressure at the high pressure turbine inlet and a 2500 kPareheat pressure, the temperature at the inlet of the high pressure turbine and reheattemperature of the steam is 540 0C, condenser pressure is 3.4 kPa, engine efficiency of highpressure and low pressure turbine are both 75 %. Sketch the cycle lay out and cycle T-s diagram.a. Find the enthalpy at each state point. (Summarize)b. Find the actual enthalpy at the exit of the high-pressure turbine and low-pressure turbine.c. Find the cycle thermal efficiencyd. If the net power at the turbine is 100 MW find the mass flow rate of steam, in kg/s;e. Heat rejected by the condenser, in MW
A steam power plant boiler pressure is between 60 bar and a condenser pressure 0.040 bar. Calculate the cycle efficiency, the work ratio and the specific steam consumption. i. Carnot cycle using wet steam ii. Rankine cycle with dry saturated steam enter the turbine
Steam at 10 MPaa, 550 degrees celsius enters an ideal engine that has one stage of regenerative cycle; condenser pressure is 10kPaa and extraction of steam is at 1 MPa. Compute the following 5. Steam rate
Steam at 10 MPaa, 550 degrees celsius enters an ideal engine that has one stage of regenerative cycle; condenser pressure is 10kPaa and extraction of steam is at 1 MPa. Compute the following 8. Engine efficiency 9. Fraction of steam extracted from the turbine
In an ideal Rankine cycle, steam is generated at 4.1 MPa and 480 deg. C. The condenser is at 32 deg. C. Determine: a. The cycle thermal efficiency b. For the engine with the same end states, the thermal efficiency and steam rate
A steam power plant operates between a boiler pressure of 48 bar and a condenser pressure of 0.04 bar Calculate for these limits the cycle efficiency for a Camot cycle using wet steam NB Answer in decimal and not percentage to 4 decimal places.
Rankine cycle for initially dry saturated steam at 150 psi, condenser pressure of 2 psi. Find the work of cycle in Btu and ft-lb. Also compute the cycle efficiency.Note of the following data from the steam table:At 150 psia: Tsat=358.4 deg. FVf=0.0180 ft3/lb, vg=3.016 ft3/lb; uf=330.2 Btu/lb; ug=1111.2 Btu/lb; hf=330.5 Btu/lb; hfg=863.6 Btu/lb; hg=1194.1 Btu/lb; sf=0.5138 Btu/lbR; sfg=1.0556 Btu/lbR; sg=1.5694 Btu/lbRAt 2 psia: Tsat=126.04 deg. FVf=0.016 ft3/lb, vg=173.75 ft3/lb; uf=94.02 Btu/lb; ug=1051.8 Btu/lb; hf=94.0 Btu/lb; hfg=1022.2 Btu/lb; hg=1116.2 Btu/lb; sf=0.1749 Btu/lbR; sfg=1.7451 Btu/lbR; sg=1.9200 Btu/lbR
An Ideal Rankine cycle operates on a boiler and condenser pressure of 2MPa and 20kPa respectively. Steam leaves the boiler at 500C. The cycle produces a Net Power of 10MW. Determine the a.) Thermal efficiency of the cycle(%), b.) steam rate of the turbine. (kg/kW-hr), and c.)heat rate of the cycle (kJ/kW-hr) PLS SHOW COMPLET SOLUTIONS