Q3]A steam power plant operates on the reheatRankin Cycle. Steam enters the high-pressureturbine at 10 MPa and 600 C and leaves at2MPa. Steam is reheated at constant pressure to450 C before it expanded in the low-pressureturbine. Steam leaves the low-pressure turbine at1 bar and leave the condenser as a saturatedliquid. Determine the1- The work of each turbine2Boiler2- The work of pump13- The cycle's thermal efficiency.Pump4- Draw T-S Diagram35HPTLPTCondenser6

First, we need to determine the work of each turbine. The work done by the turbine is given by the…

Answered: Q3] A steam power plant operates on the…

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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Carnot-cycle heat engine having 1kg of air in a piston/cylinder arrangement. This heat engine operates between reservoirs at 1000K and 300K. At the beginning of the heat addition, the pressure is 20bar. During this process the volume triples. Draw the cycle on P-V & T-S diag. and analyze each of the four processes in the cycle and determine:-a. The pressure, volume, and temperature at each point.b. The work, heat transfer, and the entropy change for each process.c. The maximum cycle efficiency
Steam is supplied to a two-stage turbine at 40 bar and 350 o 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; i. The work output and heat supplied per kg of steam for the plant assuming ideal processes ii. The thermal efficiency of the cycle iii. The specific steam consumption
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?
A reversible refrigerator operates using a Carnot refrigeration cycle. It operates usingr-134a between 140 and 400 kPa. The refrigerant exits the compressor (and enters the condenser) assaturated vapor. It also leaves the condenser as saturated liquid.a. Sketch the P-v and T-s diagram of this cycle. Define the coordinate properties of each state oneach graph.b. Evaluate the specific heat and specific work properties of each (in kJ/kg). Indicate the sense.c. Evaluate the coefficient of performance using the specific heats and works from the previousitem. Did it match with the COPR obtained if you used the operating temperatures? Solve for states first. Then, show the solution to each of the above required in order.
Q3] Consider a combined gas-steam power cycle as shown in the following figure. The gas turbine cycle has a pressure ratio of 7. Air enters the compressor at 27°C at a rate of 12 kg/s and at the gas turbine at 1027°C. The heat rate transferred at the heat exchanger is 5300 KJ/s. The steam leaving the pump is saturated water at 20 bar and enter the steam turbine as a saturated steam. Determine: 1- The air temperature at point 5 2- Work done by the compressor in KJ/kg. 3- Work done by the gas turbine in KJ/kg. 4- Flow rate of the steam in kg/s. 5- If the work produced by the steam turbine is 0.3 of that produced by gas turbine, determine the overall efficiency (ignore the pump work). 2 Comp. 1 47 Pump 40 6 C.C 3 Heat Exchanger 5 Condenser 4 9 8 4 ST GT 4
In a reheat cycle steam at 15 MPa, 540 degrees Celsius enters the engine and expands to 1.95 MPa. At this point the steam is withdrawn and passes through a reheater. It reenters the engine at 540 degrees Celsius. Expansions now occur to the condenser pressure of 0.0035 MPa. Find the efficiency.
show complete and step by step solution with ts diagram illustration. REGENERATIVE CYCLE AN ENGINE
A power plant operating in a Reheat Rankine Cycle produces steam at 3 MPa, 600oC in the boiler. It keeps the condenser at 45oC by transfer of 10 MW out as heat transfer. The first turbine section (high-pressure) expands to 500 kPa and then flow is reheated followed by the expansion in the low-pressure turbine. Provide a detailed solution. Avoid shortcuts. Determine the values of enthalpy for each state.
In a Reheat Cycle, steam at 2,350 psia and 1,100°F enters the engine and expands to 260 psia at this point the steam is withdrawn and passed through a reheater. It re-enters the engine at 900°F. Expansion now occurs to the condenser pressure of 0.5 psia. For an ideal cycle, find the thermal efficiency.
The condensing pressure for a Rankine Engine is 1.6 bar. 200°C and the steam at the beginning of expansion is at 3.75 Mpa, 400°C. Calculate the efficiency of cycle and engine using the mollier chart. Draw P-V and T-S diagram. Can you show me the detailed step-by-step solution using the given formula?
H1
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

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