A steam plant operates on the cycle given below. A 4 S 3 The pressure levels are 10 kPa and 6000 kPa, and steam leaves the turbine as saturated vapor. The pump efficiency is 0.70, and the turbine efficiency is 0.75. Determine the thermal efficiency of the plant. The thermal efficiency of the plant is

A steam plant operates on the cycle given below. A 4 S 3 The pressure levels are 10 kPa and 6000 kPa, and steam leaves the turbine as saturated vapor. The pump efficiency is 0.70, and the turbine efficiency is 0.75. Determine the thermal efficiency of the plant. The thermal efficiency of the plant is

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

2.) A Steam power plant operates using the actual Rankine Cycle where steam initially enters the turbine at 5.0 MPa and 400C then after an irreversible adiabatic process, it exits the turbine with a dryness of 0.90. It then condenses at 7 kPa and exits as saturated liquid. Draw the TS diagram, find the thermal efficiency, and steam rate.
Steam is delivered to turbine at 5.4 MPa and 600 degree C. Before condensation at 31 degree C, steam is extracted for feed water heating at 0.6 MPa. The turbine exhaust is 60 degree C. the required values of some state point properties are tabulated below. 10. Calculate the net work of the cycle.
A heat pump with refrigerant-134a (R-134a) as the working fluid is used to keep a space at 21 °C by absorbing heat from geothermal water that enters the evaporator at Ti,water = 60 °C at a rate of 0.067 kg/s and leaves at To,water = 40 °C. The specific heat of liquid water is 4.18 kJ/(kg∙K). Refrigerant enters the evaporator at TR-134a = 10 °C with a quality of x = 12 % and leaves at the same pressure as saturated R-134a vapor at the same temperature. The compressor consumes 1.4 kW of power. 1)Determine the mass flow rate (in kg/s) of the refrigerant. 2)Determine the rate of heat (in kW) supplied to the space. 2)Determine the COP of the heat pump. 4)Determine the ideal minimum power input (in kW) to the compressor for the same rate of heat supply
A reversible heat pump is working between 9°C and 28°C. The minimum power required per ton on heating effect is W.
Steam is produced for an ideal turbine at a pressure of 3.0MPa. The condenser pressure is 2.0kPa. The heat added per kilogram is 2750kJ. Neglecting pump work, determine the thermal efficiency.
If air enters the adiabatic turbine at 227 degree C and 1500kpa. Final pressure would reach 100kpa, and efficiency of turbine at 85%. What is final temperature and final work? Cv is 0.719kJ/kg.K, cp is 1.007kj/kg.k. Pls sketch two processes of T-S diagram
superheated steam enters the turbine at 873K and 18MPA. Find the isentropic efficiency of the following turbine. Also find T2 and turbine actual power output. The flow rate is 10 kg/s. It exists as saturated vapor at 393K. hint: the isentropic case should exit as high quality mixed phase.
1.) A Steam power plant operates using the ideal Rankine Cycle where steam initially enters the turbine at 5.0 MPa and 400C then after expanding, it condenses at 7 kPa and exits as saturated liquid. Draw the TS diagram, find the thermal efficiency, and steam rate.
PROBLEM 2.0 The working substance for a Carnot cycle is 9 Ib of air. The volume at the beginning of isothermal expansion is 10 cu ft and the pressure is 300 psia. The ratio of expansion during the addition of heat is 2 and the temperature of the cold body is 90°F. Find The heat added BTU. The heat rejected in BTU. The mean effective pressure in psi The ratio of expansion during the isentropic process The overall ratio of compression.
Please show step by step solution not just answers and how each value is derived dont just mention from a table becuase i cant fnd it, if mentioned please display it.
What would be the isentropic efficiency of a turbine if the working fluid is steam and the inlet conditions are as follow T = 400 C and P = 3000 kPa. The fluid leaves the turbine at 70 kPa and 280 C. The output power of turbine is equal to 1500000 W. Select one: a. 0.86 b. 0.2 c. 0.42 d. 0.74
Air is used as the working fluid in a turbine. At the inlet, the air is at 1100 K, 1050 kPa. It is flowing at a rate of 10 kg/s, having a velocity of 30 m/s. At the outlet, the air is 500 K, 98.61 kPa, and flowing at 45 m/s. Assuming that the specific heat of the air is constant (at the average temperature) during the process, what is the power output of the turbine in MW? MW (CC) BY-NO-SA Niel Crews, 2013