02:A// For a centrifugal compressor. Prove that:22Power developed on fluid = mG, G² - C,, Can² – Cyu,C22 – C,2, Cri –+Cbi2 - CbuPower developed on fluid = m[,2If you know that: The theoretical torque = Cw2. r2 - Cw1.r1Where r and r2 are the radii at the inlet and outlet of the impeller respectively.B// Numerate the modifications of the basic cycle of gas turbine power plant?. If you addheat exchanger for the basic cycle in which the heat given up by the gasses is double thattaken up by the air, assuming the air and gasses have the same mass and properties, find theheat exchanger effectiveness and thermal ratio of power plant.2.

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A// For a centrifugal compressor. Prove that: C2? – C,?, Cri² – Gr2 G,-G,² , Cn" – Cun" Cb12 | Power developed on fluid = m[- 2 2 2 If you know that: The theoretical torque = Cw2• r2 - Cw1.r1 Where ri and r2 are the radii at the inlet and outlet of the impeller respectively.

A// For a centrifugal compressor. Prove that: C2? – C,?, Cri² – Gr2 G,-G,² , Cn" – Cun" Cb12 | Power developed on fluid = m[- 2 2 2 If you know that: The theoretical torque = Cw2• r2 - Cw1.r1 Where ri and r2 are the radii at the inlet and outlet of the impeller respectively.

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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1. Where necessary, assume air as an ideal gas and consider R = 287 J/(kg.K), Cp = 1005 J/(kg.K), Cv = 718 J/(kg.K). a) A nozzle is a device that is used to increase the velocity of a fluid by varying the cross-sectional area. At the last section of a jet engine (Fig Q1.a, section 5), air with a mass flow rate of 50 kg/s at a pressure of 500 kPa and a temperature of 600 K enters a nozzle with an inlet cross-sectional area of 5 m2. The exit area of the nozzle is 20% of its inlet area. The air leaves the nozzle at a velocity of 300 m/s. The nozzle is not well-insulated and during this process, 5 kJ/kg heat is lost.Figure Q1.a: Schematic of a Jet engine.(iv) Determine the temperature of the air as it leaves the nozzle.
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1. Where necessary, assume air as an ideal gas and consider R = 287 J/(kg.K), Cp = 1005 J/(kg.K), v = 718 J/(kg K)- a) A nozzle is a device that is used to increase the velocity of a fluid by varying the cross-sectional area. At the last section of a jet engine (Fig Q1.a, section 5), air with a mass flow rate of 50 kg/s at a pressure of 500 kPa and a temperature of 600 K enters a nozzle with an inlet cross-sectional area of 5 m2 The exit area of the nozzle is 20% of its inlet area. The air leaves the nozzle at a velocity of 300 m/s. The nozzle is not well-insulated and during this process, 5 kl/kg heat is lost. 2 Compre 1 Conttnhanbe Figure Q1.a: Schematic of a Jet engine. (i) In analysing this nozzle using the 1st law of thermodynamics, the change in which type of energy is negligible? (ii) Determine the density and velocity of the air entering the nozzle. (ii) Calculate the density of the air as it leaves the nozzle. (iv) Determine the temperature of the air as it leaves the nozzle.…
6) In cooling tower below, derive the given equations based on the system boundary below (neglect fan/pump work). Air Out 2 Water Sprayed Air In ma 1 Make-up water mM M ma ↑aintaint Air Blows Upward mm = ma (W2 - W1) B A Warm Water Gondenser Pump mw mw 00000 Cold Water ma ( W2- W1 ) hm + mw (hB-hA) =ma (h2-h1)
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1. Where necessary, assume air as an ideal gas and consider R = 287 J/(kg.K), Cp = 1005 J/(kg.K), Cv = 718 J/(kg.K). a) A nozzle is a device that is used to increase the velocity of a fluid by varying the cross-sectional area. At the last section of a jet engine (Fig Q1.a, section 5), air with a mass flow rate of 50 kg/s at a pressure of 500 kPa and a temperature of 600 K enters a nozzle with an inlet cross-sectional area of 5 m2. The exit area of the nozzle is 20% of its inlet area. The air leaves the nozzle at a velocity of 300 m/s. The nozzle is not well-insulated and during this process, 5 kJ/kg heat is lost.Figure Q1.a: Schematic of a Jet engine.(v) Calculate the pressure of the air as it leaves the nozzle.
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