Describe the T-s diagrams accordingly by filling in the blanks. Use the sets of words given below for thecorrect description.reheat/ closedIdeal / Actual / vapour /cycle /Carnot/ Rankine/ Brayton/Ericsson/Stirling/regenerative/open/with/aNino To C @ 42.5.6.abсeTf14In a two-stage gas turbine plant, with reheating after the first stageTA25decreases the thermal efficiencies.increases the thermal efficiencies.does not affect thermal efficiencies.Decreases the work ratio.increases the work ratio.does not affect the work ratio.equal.unequal.25The ideal compressor work and turbine work in a jet-propulsion engine isab9in2/qoutWpump.inHigh-pressureturbine3Reheating6Wturb,outLow-pressureturbineсnot related to each other.dunpredictable(a)By writing an energy balance on the heat exchanger of a binary vapour power cycle, obtain a relationfor the exit enthalpy regarding the mass flow rates of two fluids in terms of the other enthalpies. Take thetopping cycle and bottoming cycle to enter the heat exchanger at states 1 and 3, respectively, with exit atstates 2 and 4, respectively. Use subscript 'A' for the topping cycle and 'B' for bottoming cycle. (b) State thetwo assumptions considered for the expression.What is the primary purpose of the binary power cycle?Name two types and binary power cycles and describe them.

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Describe the T-s diagrams accordingly by filling in the blanks. Use the sets of words given below for the correct description. reheat/ closed Ideal / Actual / vapour /cycle /Carnot/ Rankine/ Brayton/Ericsson/Stirling/regenerative/ open/with/a 1 4 TA 2 5 4s 4a TA 9in 2 qout pump.in High-pressure turbine 3 Reheating 6 Wurb,out Low-pressure turbine

Describe the T-s diagrams accordingly by filling in the blanks. Use the sets of words given below for the correct description. reheat/ closed Ideal / Actual / vapour /cycle /Carnot/ Rankine/ Brayton/Ericsson/Stirling/regenerative/ open/with/a 1 4 TA 2 5 4s 4a TA 9in 2 qout pump.in High-pressure turbine 3 Reheating 6 Wurb,out Low-pressure 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

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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.
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B A 10m y 6m C 8m 6m D Figure 1: Schematic diagram of task 1. 5 Part C Suppose that a turbine is installed before the pipeline exit to produce electricity. If the used turbine converts only three-quarters of the energy that the fluid will lose after passing through the turbine, what is the efficiency of this turbine? - Identify the most common water turbines and the limitations that exist within these different types? - Although hydraulic turbines considered one of the most efficient power plants, their ecological impact is a big concern. Discuss this issue and suggest remedies for such problems by writing a short paragraph?
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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? QH T=500°c Boiler Pump W. Turbine Turbine Condensor Pressure = 25 Kpa
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Question B3 The engine of an aeroplane is equipped with an ideal convergent nozzle with an area ratio Ainlet 2.035 ( -A-2.035), as in Figure Q-B3. The aeroplane is flying at an altitude of 11 Aexit km where the atmospheric pressure and temperature are 0.23 bar and 216K respectively. You may assume the combustion gases entering the nozzle have the same property as air (i.e. y=1.40, R=287 J/kgK and Cp-1004.5J/kgK). Page 6 Question B3 continued inlet exit Amles/Aexit -AVAJ-2.035 Figure Q-B3 a) If the nozzle operates at its critical condition, calculate: the inlet Mach number M;. nozzle's exit velocity V, the inlet stagnation pressure Por- the inlet static pressure FG The stagnation Aj P, and the nozzle's gross thrust per unit exit area temperature of the gases entering the nozzle is To 1200 K. b) If the stagnation pressure at the inlet of the nozzle is reduced to 80% of its value in part (a), determine the exit static temperature 7;, the nozzle's gross thrust per unit exit area FG. The…
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