Q/ Three chemical engineers (Mohammed, Ahmed and Ali) discussed about the effect of the pressure value of the pump on the efficiency of the steam power plant that operate according on Rankine cycle( as shown in figure below): Mohammed said that the increasing of the pressure value will increase the efficiency of the plant Ahmed said that the increasing of the pressure value will decrease the efficiency of the plant Ali said that the pressure value doesn't effect on the efficiency of the plant Which of them is true?

Q/ Three chemical engineers (Mohammed, Ahmed and Ali) discussed about the effect of the pressure value of the pump on the efficiency of the steam power plant that operate according on Rankine cycle( as shown in figure below): Mohammed said that the increasing of the pressure value will increase the efficiency of the plant Ahmed said that the increasing of the pressure value will decrease the efficiency of the plant Ali said that the pressure value doesn't effect on the efficiency of the plant Which of them is true?

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

(17 blanks) Calculate the efficiency of the Carnot Engine for ideal gas. Consider the figure below for a complete cycle of Carnot engine, where the cycle goes from ad->ab->bc->cd Carnot cycle Он TH Tc - V 02016 Pearson Education, Inc. processes: processes and segment ab & cd are the Where segments ad & bc are the and the volumes involved are Va, Vb, Vc, Vd, and the two temperatures TC and
In a steam power plant, saturated steam at a pressure of 400 psia enters the turbine. The condenser pressure is 1 psia. Find the ideal Rankine cycle and the maximum thermal efficiency. [Ans: 33% and 38%]
A gas turbine cycle is preferred over steam power plant in power station that is used to generate electricity. Your manger asked you to investigate and study the possibility of upgrading the power plant discussed in Project-1 to a gas turbine cycle or a combination of both cycles (Combined cycle). The head of the department asked you to deliver a report showing a professional evaluation and assessment for gas turbine cycle efficiency given the following information.First you selected a gas-turbine power plant operating on an ideal Brayton cycle and according to the manufacturing datasheets it has the following specifications:• A pressure ratio of 10.• Heat is added to the cycle at a rate of 500 kW• Air passes through the engine at a rate of 1 kg/s• The air at the beginning of the compression is at 70 kPa and 0 C.
A gas turbine cycle is preferred over steam power plant in power station that is used to generate electricity. Your manger asked you to investigate and study the possibility of upgrading the power plant discussed in Project-1 to a gas turbine cycle or a combination of both cycles (Combined cycle). The head of the department asked you to deliver a report showing a professional evaluation and assessment for gas turbine cycle efficiency given the following information.First you selected a gas-turbine power plant operating on an ideal Brayton cycle and according to the manufacturing datasheets it has the following specifications:• A pressure ratio of 10.• Heat is added to the cycle at a rate of 500 kW• Air passes through the engine at a rate of 1 kg/s• The air at the beginning of the compression is at 70 kPa and 0 C. Task 1Investigate the principles of operation for a gas turbine power plant by considering the following:1. Construct T-S and P-V diagrams while discussing the operation of a…
3. A simple steam power plant illustrated below uses 20 kg/s of steam. Find: a) the boiler heat transfer rate; b) the turbine power output; c) the condenser duty; d) the pump power required. What is the ratio of net power out to heat in (the thermal efficiency)? The turbine and the pump are adiabatic 2 Boiler Pump 2 3 |3|4 Stream T(°C) P(MPa) 40 40 Turbine 600 x = 1 Condenser 0.01 10 10 0.01 A
Write legibly, provide manual step by step solution, and diagram for below given problem. A superheat steam Rankine cycle has turbine inlet conditions of 17.5 Mpa and 530 C expands in a turbine to 0.007Mpa. The turbine and pumps polytropic efficiencies are 0.9 and 0.7 respectively, pressure losses between pump and turbine are 1.5MPa. What should be the pump work in KJ/kg? A. 17.3 C. 37.3 B. 27.3 D. 43.4
A simplified Rankine cycle and some data are given in the figure below. a. Show the process in a TS diagram b. Calculate the rate of heat addition (QH) to the boiler. c. Calculate Wpump- d. Calculate |Wnetl. e. Determine the thermal efficiency (n) 6 MPа, 550 °C Boiler 6 MPa w, (turbine) |mass flow rate (m): 22 kg/s Turbine Turbine efficiency (isentropic): 89 % w, (pump) 3 4 Condenser 50 КРa 50 kPa Working fluid: water
1. An engine from a quarry vehicle used in the Build a Beach program of DEMR has a power requirement of 560 kW. Per hour of its operation, it ejects 234 MJ into its surroundings at 50 °C. If it behaves like a Carnot engine, answer the questions below. A. How much work (MJ) is done by the engine per hour of operation? B. What is the efficiency (%) of the engine?C. What is the temperature (°C) of the hot reservoir? 2. Determine the entropy change (kJ/K) associated to the conversion of 10 kg of ice at -11 °C to steam at 121 °C. 3. Anna and Beth are using another rare metal, the nth metal (c = 0.600 J/g-℃), to build the 5-kg cuirass of their design. Initially, the metal is at 2250 K. It is then submerged to 10 kg of water at 15 °C. If the remaining liquid water after submerging the metal is 8.5 kg, solve for the net entropy change (kJ/K) of the system.
The condensing pressure for a Rankine engine is 0.001325 MPavac. Calculate the following for steam flow rate = 1 kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa. Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case: Ideal turbine work (KW). Ans.____________________________ Heat rejected at condenser (KJ/sec). Ans.____________________________ Mass of cooling water in kg/sec if cp H2O = 4.18 KJ/kg-K, and inlet temp of water to condenser = 20 deg C, outlet temp is 35 deg C. Ans.____________________________ Pump work in KW. Ans.___________________________
A steam turbine is operated under the conditions shown in the figure.Define:a. steam flow rate (kg/min) to produce 1000 kW powerb. actual steam rate (kg/kWh)!c. turbine efficiencyd. What type of steam turbine belongs to this?
The refrigeration system of a food production firm is run using the Reversed Carnot Cycle. The temperature of the hot refrigerant supply in the system should be 52°C, while the temperature of the sink should be -14°C. Its capacity is projected to be at least 24 tons. It's important not to disregard losses. Find and Show unit analysis and conversion: a. COP and COP of Heat Pump b. Heat rejected from the system in kW c. Network in, Hp and Energy Efficiency Ratio
Steam is generated at 4.10 Mpa and 440°C and condensation occurs at 0.105 MPa a. For a Rankine engine operating between these limits, computethe thermal efficiency and the heat rate b. Considering that a Rankine cycle occurs between same limits, determine QA, QR, Wnet and eth c. What mass flow rate is required for a net output of 30 000 kW Don't answer the given problem, just give me the schematic diagram and t-s diagram of the given problem