(b) Determine the temperature of theair at the exit if the pressure is 1.5 bar(you may assume velocity change isnegligible)[ Select ]K(c) Determine the rate of heat input[ Select ]|kWDoneb) 434. 492 . 765. 161 ülkسليم(a) Determine the mass flow rate of theair. 1.807kg/s(b) Determine the temperature of theair at the exit if the pressure is 1.5 bar(you may assume velocity change isnegligible)492K(c) Determine the rate of heat input( Select ]kWA VDoneمراسلة Air passes along an insulated horizontal pipe of 0.05 m2 cross sectional area. In the pipe it passes over a heating element. Itenters at 20 degrees C, 1.013 bar and 30 m/s.Rair = 287 J/kg.K and C,-1005 J/kg.K(a) Determine the mass flow rate of the air, [ Select]kg/s(b) Determine the temperature of the air at the exit if the pressure is 1.5 bar (you may assume velocity change is negligible)[ Select ]K(c) Determine the rate of heat input ( Select ]kW

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Answered: Determine the temper t the exit if the…

Engineering

Mechanical Engineering

Determine the temper t the exit if the pressu may assume yelociky

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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II A volume of compressed air storage tank is 0.3m3, and the air pressure P1 in the tank is 1MP.. When a part of compressed air is used, the pressure P2 of the air in the tank decreases to 0.9 MPa. Set the room temperature at 20 ° C, calculate the mass of original air ml and the mass of residual air m2. Air gas constant Rg = 287.1 J/ (kg - K)).
Where necessary, assume air as an ideal gas and consider R = 287J/(kg.K), Cp = 1005 J/(kg.K), Cv = 718 J/(kg.K). 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 duringthis process, 5 kJ/kg heat is lost. (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 thenozzle. (iii) Calculate the density of the air as it leaves the nozzle.
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.…
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. (i) In analysing this nozzle using the 1st law of thermodynamics, the change in which type of energy is negligible?
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.(ii) Determine the density and velocity of the air entering thenozzle.
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.(iii) Calculate the density of the air as it leaves the nozzle.
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.
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.
Q3. The data listed in the following table gives hourly measurements of heat flux q (cal/cm? /h) at the surface of a solar collector. As an architectural engineer, you must estimate the total heat absorbed by a 150,000-cm2 collector panel during a 14-h period. The panel has an absorption efficiency eab of 45%. The total heat absorbed is given by: h = eab q A where A = area and g = heat flux. 4 6. 10 12 14 0.10 5.32 7.80 8.00 8.03 6.27 3.54 0.20
Completely solve and box the final answer. Write legibly Determine the mass flow rate of steam through a nozzle having isentropic flow through it. Steam enters the nozzle at 10 bar, 500°C, and leaves at 6 bar. The cross-section area at the exit of the nozzle is 20 cm2. The velocity of steam entering the nozzle may be considered negligible. [Ans. 2.2 kg/s] Note: Please don't copy the answer/solution from the internet, I need a more in-depth solution for this problem. Thank you
Anideal gas with a mass of 2 kg reversibly and polytropically expands up to 3 times its initial volume in a piston-cylinder assem bly. The temperature of the ideal gas drops from 300° Cto 60° C. (a) If the heat energy inputis 20 kJand the boundary work output is 100 kJ, the specificheats of the gas cv [kJ/ kgK] and find the cp [kJ/ kgK] values. (b) If the heat energy output is 20 kJand the boundary work output is 100 kJ, the specificheats of the gas cv [kJ/ kgK] (c) Find the value k, which is the ratio of specificheats. (d) If the heat energy input is 20 kJ, the boundary work output is 100 kJ and the entropy generation is 0.36 kJ/K, then the thermal energy Calculate the source tem perature as [° C].
How much ice (by mass) at a temperature of -19.9 degrees Celsius must be added to 325g of liquid water at a temperature of 60.1 degrees Celsius in order for the final temperature of both to reach 21 degrees Celsius. c of ice=2100 J/kg/C c of water=4190 J/kg/C Latent heat of fusion of water=3.34E5 J/kg/C a. .115kg b. 12kg c. 5 lbs d. .191kg