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

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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
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.
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?
In a steam turbine plant steam expands in the high pressure turbine from 5000kPa, 500°C to 500kPa with an isentropic efficiency of 0.9. It is then reheated isobarically to 500°C before entering the low pressure turbine. In the low pressure turbine the steam expands to dry saturated, 5kPa. The condensate leaves the condenser with 4° of undercooling. Determine: (a). the condition of the high presfsure turbine exhaust (b). the isentropic efficiency of the low pressure turbine (c). the specific steam consumption for a turbine output power of 7.5MW (d). the Rankine efficiency including the feed pump
A turbine is supplied with steam at 25 BAR, 42C and exhaust into a condenser at 55 KPa. Find the thermal efficiency of the cycle. Draw the schematic and T-S diagrams with corresponding labels. (Clear handwritten and step by step solution)
1. Consider a steam power plant that operates on a simple ideal Rankine cycle and has a net power output of45 MW. Steam enters the turbine at 7 MPa and 500°C and iscooled in the condenser at a pressure of 10 kPa by runningcooling water from a lake through the tubes of the condenserat a rate of 2000 kg/s. Show the cycle on a T-s diagram withrespect to saturation lines, and determine (a) the thermal efficiency of the cycle, (b) the mass flow rate of the steam, and(c) the temperature rise of the cooling water. Answers:(a) 38.9 percent, (b) 36 kg/s, (c) 8.4°C 2. Consider a 210-MW steam power plant that operateson a simple ideal Rankine cycle. Steam enters the turbine at10 MPa and 500°C and is cooled in the condenser at a pressure of 10 kPa. Show the cycle on a T-s diagram with respectto saturation lines, and determine (a) the quality of the steamat the turbine exit, (b) the thermal efficiency of the cycle,and (c) the mass flow rate of the steam. Answers: (a) 0.793,(b) 40.2 percent, (c) 165…
write legibly pls A simple gas-turbine operates with air as the working fluid, a pressure ratio of 18:1 and a maximum temperature of 700°C. The air enters the compressor at 100kPa and 20°C. Determine: a. Thermal Efficiency of the cycleb. The heat addedc. The state of the air exhausted by the turbine
in an ideal reheat cycle, the steam enters the turbine at 30 bar and 500°C after expansion to 5 bar, the steam is reheated to 500°Cand then expanded to the condenser pressure of 0.1 bar. Determine the cycle thermal efficiency, mass flow rate of steam. Take power output as 100 MW.
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