2. In an industrial facility, both electrical power and a process heating load of 14000 kW are needed. The required heat and electrical power are supplied by a combined steam plant, where steam enters the turbine at 20 bar, 450°C and exhaust steam leaves at 2.0 bar. The isentropic efficiency of the turbine is 0.85. The process heat is provided by the turbine exhaust steam. in this facility the condensate drain from the process heater at the saturation temperature is fed back to the pump. Determine (a) The temperature of the exhaust steam leaving the turbine (b) The mass flow rate of the steam entering the turbine (c) The power supplied by the turbine.

2. In an industrial facility, both electrical power and a process heating load of 14000 kW are needed. The required heat and electrical power are supplied by a combined steam plant, where steam enters the turbine at 20 bar, 450°C and exhaust steam leaves at 2.0 bar. The isentropic efficiency of the turbine is 0.85. The process heat is provided by the turbine exhaust steam. in this facility the condensate drain from the process heater at the saturation temperature is fed back to the pump. Determine (a) The temperature of the exhaust steam leaving the turbine (b) The mass flow rate of the steam entering the turbine (c) The power supplied by the turbine.

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

Refriegerant ammonia enters the compressor of a refriegerant as a superheated vapor at 0.14 MPa, -20 °C at a rate of 0.04 kg/s, and leaves at 0.8 MPa, 50 °C. The refriegerant is cooled in the condenser to 0.75 MPa and is throttled to 0.14 MPa. Disregarding any heat transfer and pressure drops in the connecting lines between components, determine:a) the rate of heat removal from the refriegerated space in kWb) the power input to the compressor in KWc) the COP pf the cycle
2.) An actual Rankine Engine is used to power a generator. The steam enters its turbine at 4 MPa and 300C then expands in an irreversible adiabatic process where it becomes saturated vapor. It enters the condenser with a pressure of 5 kPa. Find Ec, W(W₁, W₁, Wk) the remaining engine efficiencies(n,, na, nx), thermal efficiencies (e₁, 3, ek), SR(SR₁, SR₂, SR), HR(HR, HR, HR) obtained if the turbogenerator has 85% mechanical efficiency and 90% generator efficiency. 2822.88 kg W 27 e SR HR I 399.2 39.08% 14.14% 25456.73 B 339.32 33.22% 12.02% 29949.35 305.39 29.89% 10.82% 33276.96 k kg kj kg kg kWh kg kWh kg kWh 9.02- 10.61 11.79 kWh kj kWh
Steam is supplied to a two-stage turbine at 48 bar and 400 °C. It expands in the firstturbine until it is just dry saturated, then it is re-heated to 400 °C and expandedthroughthe second-stage turbine. The condenser pressure is 0.04 bar. Determine the specific work output of the system to 3 d.p? what is the specific entalphy in kJ/kg for state 2?
H.W. 3.7 In a steam power plant develops an output power of (48MW) the steam enters the high pressure turbine at (70 bar) and (450°C) and leaves it at (10 bar) and (210°C). The steam is then reheated under constant pressure to (400°C) before it expands in the low pressure turbine to the condenser pressure of (0.07 bar)and dryness fraction of (0.93). Neglect the pump work and calculate: 1. The isentropic efficiency of each stage of turbine. 2. The cycle thermal efficiency. Answers: (1) 87.7%. (2) 36.6%
Please Answer all my Question .. Please help me , I don't want plagiarism.
A steam turbine operates receiving steam from the boiler at 2000 psia and 1000 F. The steam expands to 600 psia where there is an extraction port. The temperature of the extracted steam is 750 F. 25% of the entering steam flow is extracted and sent to a feedwater heater. The remaining steam inside the turbine expands to 1.0 psia, the condenser pressure. The quality of the steam exiting the turbine to the condenser is 85%. Calculate the isentropic efficiency of the turbine. Answers: 73% 78% 64% 68% 85%
Steam is supplied to a two-stage turbine at 40 bar and 350 oC. It expands in the first turbine until it is just dry saturated, then it is reheated to 350 oC and expanded through the second stage turbine; the isentropic efficiencies of the first and second stage turbines are 84 % and 78 % respectively. The condenser pressure is 0.035 bar. Sketch the process on a T-s diagram and calculate;The work output and heat supplied per kg of steam for the plant assuming ideal processesThe thermal efficiency of the cycleThe specific steam consumption
1. Steam at 14 Mpa and 700°C is received by a regenerative cycle. Before condensation at 70 kPa, steam extracted for feedwater heating at 5 Mpa. On the mass basis of 1 kg of throttle steam, find the thermal efficiency of the engine. PLEASE SHOW COMPLETE SOLUTION (DRAW THE TS DIAGRAM)
Refrigerant 134a is used as the working fluid in a refrigerator, and it operates in an ideal vapor compression refrigeration cycle, if the refrigerant enters the evaporator at -4 ° C and enters the condenser at 1200 kPa. If the mass flow of the refrigerant is 180 kg / h, determine a) the Ts and Ph diagrams of the cycle with all the information b) the rate of heat removal from the refrigerated space and the power input to the compressor, and c) the COP Of fridge
1. In a steam power plant steam enters the turbine at 6 bar and 400°C and is expanded isentropic ally to the condenser pressure of 0.1 bar. If the isentropic efficiency of the turbine is 80%, find the actual net work output and the thermal efficiency.
In a steam power plant steam enters the turbine at 6 bar and 4000C and is expanded isentropic ally to the condenser pressure of 0.1 bar. If the isentropic efficiency of the turbine is 80%, find the actual net work output and the thermal efficiency.
Only solve last 2 parts ok Problem 2 – Heat Pump Thermodynamic Analysis Refrigerant-134a enters the condenser of a residential heat pump at 800 kPa and 50°C at a rate of 35 L/min and leaves at 750 kPa subcooled by 3°C. The refrigerant enters the compressor at 200 kPa superheated by 3°C. Neglecting changes in kinetic and potential energy and any stray heat transfer, please answer the following.a. Create a schematic of the cycle, use the same numbers used in your textbook for the inlet and exit states of each device, and include the energy exchanges between the cycle devices and the surroundings.b. Sketch the cycle processes on a T-s diagram.c. Determine the isentropic efficiency of the compressor.d. Compute the rate of heat supplied to the heated room.e. Determine the COP of the heat pump.