6.6. Air flows through a 0.25 m diameter duct. At the inlet the velocity is 300 m/s, andthe stagnation temperature is 360 K. If the Mach number at the exit is 0.3,determine the direction and the rate of heat transfer. With the same conditions atthe inlet, determine the amount of heat that must be transferred to the system if theflow is sonic at the exit.

Answered: Image /qna-images/answer/bd420f3e-e155-4d2c-9851-cc381c9c2d73.jpg

Answered: rate of heat transfer. Wi

Engineering

Mechanical Engineering

rate of heat transfer. Wi

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

Related questions

Q: Which of the following is (are) a violation of the Second Law of Thermodynamics? (more than one…

A: Solution:

Q: Controlling the Radiation of Heat.

A: Radiation of heat is defined as a loss through which heat from the system is radiated outside the…

Q: A 1-ton HVAC unit will remove up to 12,000 Btu/h. What size unit is neededfor a house with a heat…

A: Given1 ton HVAC unit will remove heat Q1= 12000Btu/hHouse with heat load Q2=28576Btu/h

Q: GIVE AN EXAMPLE OF HOW TO ENERGY TRANSFER BY HEAT?

A: Let us consider example of Internal combustion(IC) engine fuels. In IC engines, fuels (gasoline or…

Q: Explain energy transfer by radiation with suitable justification

A: To explain: The energy transfer by radiation. Concept used: Radiation: Radiation is the transfer of…

Q: In the follow up question you have worked out the total work done ON CO2 and total heat transferred…

A: Given data:Piston cylinder device contains .Initial state 1:State 2:State 3:To determine:1) The…

Q: 1- what's is the main benefit for the cooling tower packages . 2- compare the value of heat that…

A: Hi and thanks for the question. Since you have asked multiple questions, we will solve the first…

Q: The ocean thermal energy conversion (OTEC) is uses Select one: O a. Kinetic difference O b.…

A: The ocean thermal energy conversion (OTEC) is uses.....

Q: 2 Which of the following chemical is used for heat transfer? a. Liquid Ammonia b. LiBr c.…

A: Heat transfer is defined as the movement of molecules from a region of higher temperature to a…

Q: The heat capacity rate is the O a. the ratio of the mass flow rate to the specific heat of a fluid O…

A: To find : the heat capacity rate is the

Q: 1. What are the types of boiler in terms of: a) axis of boiler, b) fire, c) pressure of boiler, d)…

A: A boiler is a closed vessel or apparatus that is designed to generate steam or heat a fluid,…

Q: autonomous system in transportation sector

A: The objective of the question is to understand the concept of autonomous systems in the…

Q: What is the difference between SATs and FATs?

A: The objective of the Factory Acceptance Test (FAT) is to confirm that the framework is set up…

Q: An electric heater is to heat 18 kg of oil per min. from 24.5 °C to 185.5 °C. Specific heat of oil…

Q: 3 4 6. 760°C 758°C Block insulation 727°C |Outside air Hot gasep 68.42°C 26.5°C 68.5°C 6.35cm 12.7cm…

A: Let K =Thermal conductivity of fire brick =1.13W/mK h =Heat transfer coefficient for the outside…

Q: Which of the following is the Camot Efficiency? work input /work output (input temperature - output…

A: Carnot efficiency: It is maximum efficiency of a thermodynamic cycle. Heat input and heat output is…

Q: Describe entry & fully developed region.

A: Thermal entrance length is that length for incoming flow in a pipe to form a temperature profile…

Q: Mathematical expressions of power output ration with power input? A Energy Efficiency (B) Capacity…

A: Mathematical expression of power output ratio with power input is called energy efficiency.

Q: Define Heat balance, heat index, specific heat and write a note on heat lose mechanism?

A: To define - Heat balance. Heat index. Specific heat. Heat loss mechanism .

Q: A conference hall is to be i at 24 C dry bulb and 60 %RH. The estimated cooling loads are 75 tons…

A: Given:Inside hall air condition,=24oC dry bulb and 60% RHSensible load, QS=75 tons=75*3.52=264 kW…

Q: In energy conversion in boiler, which combinations of the following are encountered as losses? a.…

A: Introduction: Boilers are used in power plants to generate high-pressure steam, which allows the…

Q: Velocity during the extension stroke of a reciprocating circuit is O a. Flow rate / cross sectional…

Q: Explain the effect of temperature to the efficiency result of radiation

A: Radiation efficiency: The ratio of the power radiated to the net power accepted by any object is…

Q: Define the ENERGY CONVERSION EFFICIENCIES.

A: The energy conversion efficiency:- Energy conversion is basically the transfer of energy from one…

Q: 1- what's is the main benefit for the cooling tower Packages

A: The cooling tower packages, located between the water distribution level and the cooling water sump,…

Q: How much heat in Btu must be transferred to 42lb of air to increase the temperature by 250 0F at…

A: Given:- Mass (m) = 42 lb Temperature change (∆T) = 250 °F Process : Constant Pressure Process For…

Q: Which one of the following processes of heat transfer requires the presence of a fluid? a.…

A: (a) Conduction: Conduction is heat transfer through direct physical contact between materials. It…

Q: In an air-conditioning unit 3.5 m3/s air at 27°C dry-bulb temperature, 21°C wet-bulb temperature,…

Q: Compare the kinetic energy loss rate to the solar radiation loss rate.

A: Here is the solution of your question:-Explanation:To compare the kinetic energy loss rate to the…

Q: AB POWER ENGINEERING Introduction about the cooling system of internal combustion engines use in…

A: following is the answer for the question.

Q: with an aid of a drawing show how a Central cooling system that cool different machinery in the ship…

Q: The following relation: Tma Xoa. Toa + (1-Xoa). Tra is derived by using a heat balance between: a)…

A: To have an estimation of ventilation air provided by mechanical system, an enthalpy balance…

Q: Air movement in a room is 0.4 m/s and light clothing (0.5 clo) is being worn by the occupants. If…

A: According to the question, velocity, V=0.4m/sActive level ,s=2.5m0.5cl=0.078m2K/WAs figure is not…

Q: Which of the following will have a higher rate of heat transfer. With conduction heat transfer.…

A: To be explained :- Conduction heat transfer

Concept explainers

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.

Question

6.6. Air flows through a 0.25 m diameter duct. At the inlet the velocity is 300 m/s, and
the stagnation temperature is 360 K. If the Mach number at the exit is 0.3,
determine the direction and the rate of heat transfer. With the same conditions at
the inlet, determine the amount of heat that must be transferred to the system if the
flow is sonic at the exit.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

i need the answer quickly
Give two reasons why it is important to pay attention thermal expansion and contraction in real life situations.
Choose the correct answer only as soon as possible please
Three types of fluids stack in an open tank as shown in the plot. Select the expression of the gage pressure at location 1, P1(gage)=______ A. Patm B. 0 C. 101.325 kPa D. It can not be determined.
On a windy day, a camper feels colder as compared to a day at the same temperature when there is no wind. Which of the following heat transfer mechanisms explains this result? a. Convection b. Radiation c. None of the above d. All of the above e. Conduction
Which of the following is true for a large heat transfer coefficient? A. It is equivalent to a zero thermal resistance. B. It depends on the fluid temperature. C. It is equivalent to an infinite thermal resistance. D. It is equivalent to a small thermal resistance. E. It is equivalent to a large thermal resistance.
QUESTIONS ABOUT REFRIGERANTS Q8/ Choose True or False to answer the following: 1) The natural ice and a mixture of ice and salt were the first refrigerants. A. True B. False 2) R-134a gas is similar to R-152a in belonging to the hydrocarbon refrigerant groups A. True B. False 3) The inorganic refrigerant R-729 were exclusively used before the introduction of halo-carbon refrigerants A. True B. False 4) R410A, also known as propane A. True B. False 5) The brines commonly used are calcium chloride (CaC12) A. True B. False
essay general gases of hospitals.