Air at 20°C flows over a flat plate having a uniform heat flux of 800 W/m². The flow velocity is 4m/s and the length of the plate is 1.2 m. Determine the value of heat transfer coefficient and also the temperature of the plate as the air leaves the plate.

Air at 20°C flows over a flat plate having a uniform heat flux of 800 W/m². The flow velocity is 4m/s and the length of the plate is 1.2 m. Determine the value of heat transfer coefficient and also the temperature of the plate as the air leaves the plate.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.38P

See similar textbooks

Related questions

Q: A 5kg ball and a 7kg ball move on a smooth horizontal plane along a straight line path with velocity…

Q: The diagram shows a cart at four positions as it moves along its track. At which position is the sum…

A: By conservation of energy principle, the sum of the potential energy and kinetic energy of the cart…

Q: m³ min A single-acting two-stage compressor delivers air at 16 bar. The volume flow rate of air…

A: Given data P1= 1 bar V1= 17 m^3/min P2=16 bar. law pv^1.3 = c find the power required for first…

Q: A centrifugal pump is used to pump a liquid with the properties given below. Liquid is pumped from a…

Q: Write shear and moment equations for the beams shown below. Let x be the distance measured from left…

Q: Determine the impulse of the force for t = 3 s in the figure shown below. F = (61) N A) 18 NS B 16.2…

Q: The gas tank shown in Figure 4 is made from A-36 steel and has an inner diameter of 1.50 m The tank…

A: Since you have posted question with multiple subparts so we are solving only first three subparts…

Q: Q/For the forces shown in the figure below, determine the magnitude and direction of the sum of the…

Q: Given is a thin-walled tube with the following data: Wall thickness- 2mm ABC is a sector with a…

Q: A spiral transition curve is used on railroads to connect a straight portion of the track with a…

Q: The face of a vertical dam has the shape of an isosceles triangle of altitude 4 m with an upper base…

A: Given Base of triangle, b = 6 m Height of triangle, h = 4 m Height of water, H = 3 m…

Q: Water at 59 F flows through a straight section of a 6-in-ID cast-iron pipe with an average velocity…

A: Given dataT=59FV=4 ft/sg=32.2 lb.ft/s2ρ=62.3 lb/ft3y1-y2=2ft

Q: For the shown figure, find the height (h)? Air 1.5 bar oil 0.8 4.5 m LP S.G 13.6 h C Air water 3.2…

A: find the manometric height (h) in the manometer.

Q: Q2: Air flows out of a nozzle straight up 30 m. What is nozzle velocity exit?

A: Given data : Height from nozzle value is given by h Acceleration due to gravity is given by g…

Q: 8. The force that keeps the body moving in circular motion is a) Centripetal force b) Centrifugal…

A: given data Q-8 what force keep the body in circular motion. Q-9 weight = 20 N mass = 2 kg radius =…

Q: A rectangular plate is submerged in water as shown below. The top of the blue region is the surface…

Q: The API rating of a fuel oil is 30°. What is its specific gravity at 21°C? Put your answer in 3…

A: Given API rating = 30 Temperature, T = 21oC Find Specific gravity, SG

Q: Find the strain Stress=35.6 MPa Modulus of elasticity=54 MPa

A: Given data : Stress=σ Modulus of elasticity=E Required : Strain

Q: Complete the table of values below. Then, sketch the graph of r = 2-3 cos in polar coordinate system…

A: Given r=2-3cosθ To find Plot the value of r with angle

Q: Q.2] Find the reactions at point A for the structure shown in the figure. zkN/m A M 10m 5m 20 KN

Q: Determine the stress in each cord for the system shown in fig. below, if the cross section area of…

A: Given:W=90 KNA=650 mm2

Q: A cylinder with an area ratio of 0.2 and a bore diameter of 8.0 cm steadily extends a 13.3 kN load.…

Q: 3.1 Describe with the aid of a plant layout and p-v and T-s diagrams, the working of simple closed…

Q: or the frictionless syphon shown, etermine the discharge and the ressure heads at A and B. Consider…

A: given data diameter of pipe = 210mm diameter of nozzle = 140 mm find the discharge and pressure at…

Q: F19-2. The 300-kg wheel has a radius of gyration about its mass center O of ko = 400 mm. If the…

Q: What about the other parts of the question?

A: In this problem, it is asking the about the T-s diagram of Stirling cycle and also wanted to…

Q: A shunt generator delivers 195 A at terminal p.m. of 250 V. The armature resistance and shunt field…

Q: ne specific gravity of a liquid fuel at 15.6°C is 0.88. What is its ensity at 32°C?

Q: THERMODYNAMICS - Heat Exchanger UPLOAD COMPLETE SOLUTION. Consider a water-cooled condenser in a…

A: Solution - Given data -p1 =1 mPa p2 =0.95 mPaT1 =60°Cm˙ =0.2 kg/sT1,w =10°C T2,w…

Q: 15.14 Figure (a) shows a boat that is sailing in the y-direction at 5 km/h with the wind vane…

Q: A cantilevered solid shaft with length of 400-mm and diameter of 150-mm is loaded at its free end as…

Q: A gaseous mixture of methane, ethane and propane has their percent volume of 38%, 42% and 20%…

A: Given data Volume percentage of methane = 38% Volume percentage of ethane = 42% Volume percentage of…

Q: One of pasteurization heated to at least 62°C and kept at that temperature for at least 30 minutes…

A: GIVEN DATA- DIFFERENT PASTEURIZATION PROCESSES GIVEN WE HAVE TO CHOOSE CORRECT OPTION

Q: 5. During the flight, the air speed of a turbojet engine is 250 m/s. The ambient air temperature is…

Q: Use the phase diagram for water to answer the following: 1. At what temperature and pressure does…

A: At triple point of water: ◆ Pressure: Ptp = 0.6117 kPa. ◆ Temperature: Ttp = 0.01 ℃.

Q: The 3-kg particle A has the velocity shown. Determine its angular momentum Ho about point O.

Q: what is meant by a moment? couple? Is it a vector or a scalar?

Q: derive the generalized hook's law for an isotropic homogeneous elastic solid in terms of lame's…

A: given; derive the generalized hook's law for an isotropic homogeneous elastic solid in terms of…

Q: Q1: For the shown figure, find the height (h)? Air 1.5 bar 4.5 m oil 0.8 S.G= 13.6 h C Air water 3.2…

A: find the manometric height (h).

Q: A tank 12 m high and 2 m in diameter is 15 mm thick. The max tangential stress is ? The max…

Q: Q.2 A rod is made of cast iron and is secured to the piston by a tapered rod and nut and to the…

A: INTRODUCTION: In this problem, we will determine the permissible diameter of the piston rod using…

Q: 6 The coupling rod of a locomotive 2.5 m long is 4 cm broad and 10 cm deep and of rectangular…

A: The coupling rod of a locomotive 2.5 metres long is 4 cm wide, 10 cm deep, and rectangular in…

Q: A heat pump with the COP of 3.0 supplies heat at the rate of 240 kJ/min. Determine the electric…

A: 1) Given heat pump COP= 3 Heating effect (Q) = 240 kJ/min Concept: COP= Heating effect (Q) /Work…

Q: Determine the impulse of the force for t = 3 s in the figure shown below.

Q: Q3[A] prove that principal stresses are all REAL

Q: Provide the sectional front view, looking at the direction X, draw the top view, and right-side view…

A: According to the details provided in the question we need to draw three projection views of the…

Q: 6. Water is pumped to a storage tank from a pool by a centrifugal pump. The elevation difference…

Q: 1. A fuel pump is delivering 10 gallons per minute of oil with a specific gravity of 0.83. the total…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: Choose correct answer The food preservation may be defined as the state in which the food may be…

Q: Water enters the turbine at 160 psia and 600°F and leaves at 2 psia with a quality of 90%. It leaves…

Question

Q2)
Air at 20°C flows over a flat plate having a uniform heat flux of 800 W/m². The
flow velocity is 4m/s and the length of the plate is 1.2 m. Determine the value of heat
transfer coefficient and also the temperature of the plate as the air leaves the plate.

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 2 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

b) A 0.4-W cylindrical electronic component shown in Figure Q3b with diameter 0.3 cm and length 1.8 cm is mounted on a circuit board is cooled by air flowing across it at a velocity of 150 m/min and temperature is 40 °C. Take the pressure of air 1 atm and the film temperature to be 50 °C, determine the surface temperature of the component. Resistor 0.4 W D= 0.3 cm Figure Q3b
Q2/Engine oil at 80°C flows over a 6-m-long flat plate whose temperature is 30°C with a velocity of 3 m/s. Determine the total drag force and the rate of heat transfer over the entire plate per unit width.
The local atmospheric pressure in Denver, Colorado (elevation 1610 m), is 83.4 kPa. Air at this pressure and 20°C flows with a velocity of 8 m/s over a 1.5 m * 6 m flat plate whose temperature is 140°C. Determine the rate of heat transfer from the plate if the air flows parallel to the (a) 6-m-long side and (b) the 1.5 m side.
Q3) Engine oil at 80°C flows over a flat surface at 40°C for cooling purpose, the flow velocity being 2 m/s. Determine at a distance of 0.4 m from the leading edge the hydrodynamic and thermal boundary layer thickness. Also determine the local and average values of friction and convection coefficients.
Water at 43.3°C flows over a large square plate at a velocity of 28 cm/s. The plate is 1.2 m long (in the flow direction) and its surface is maintained at a uniform temperature of 10.0°C. The width of the plate is 1.2 m. Calculate the steady rate of heat transfer for the entire width of the plate in watts (W). The properties of water at the film temperature of (Ts + T∞)/2 = (10 + 43.3)/2 = 27°C are ρ = 996.6 kg/m3, k = 0.610 W/m·°C, μ = 0.854 × 10–3 kg/m·s, and Pr = 5.85. The steady rate of heat transfer per unit width of the plate is ___ W.
Q8) A 0.4 W cylindrical electronic component with diameter 0.3 cm and length 1.8 cm and mounted on a circuit board is cooled by air flowing across it at a velocity of 150 of the m/min. If the air temperature is 40°C, determine the surface temperature component. om
Consider atmospheric air at 25 °C and a velocity of 25 m/s flowing over BOTH surfaces of a 1-m- long flat plate that is maintained at 125 °C. The width of the plate (into paper direction) is 1 m. Determine the rate of heat transfer if the critical Reynolds number is 5 × 105.
Example 2: The local atmospheric pressure in Denver, Colorado (elevation 1610 m), is 83.4 kPa. Air at this pressure is 20°C flows with a velocity of 8 m/s over a 1.5 m  6 m flat plate whose temperature is 140°C (Figure). Determine the rate of heat transfer from the plate if the air flows parallel to the (a) 6-m-long side and (b) the 1.5-m side.
Water from an industrial process flows through a long pipe of diameter 0.2m at a mass flow of 1.25 kg/s. The surface of the pipe is held at a constant temperature of 10°C. How long must the pipe be if the water enters at 83°C is desired to be cooled to 25°C? Be sure to justify the validity of your chosen correlation.
Water at 43.3°C flows over a large square plate at a velocity of 20 cm/s. The plate is 2 m long (in the flow direction) and its surface is maintained at a uniform temperature of 10.0°C. The width of the plate is 2 m. Calculate the steady rate of heat transfer for the entire width of the plate in watts (W). The properties of water at the film temperature of (Ts + T∞)/2 = (10 + 43.3)/2 = 27°C are p = 996.6 kg/m³, k= 0.610 W/m-°C, μ = 0.854 x 10-3 kg/m-s, and Pr = 5.85. The steady rate of heat transfer per unit width of the plate is W.
The upper surface of a metal plate is being cooled with parallel air flow while its lower surface is subjected to a uniform heat flux of 810 W/m2. The air has a free stream velocity and temperature of 2.5 m/s and 15°C, respectively. Determine the surface temperature of the plate at x = 1.5 m from the leading edge. Hint: The surface temperature has to be found iteratively. Start the iteration process with an initial guess of 45°C for the surface temperature.
. Castor oil at 36 °C flows over a 6 m long and 1 m wide heated plate at 0.06 m/s. For a surfacetemperature of 96 °C, determine (i) the thermal boundary layer thickness at the end of the plate,(ii) the local heat transfer coefficient at the end of the plate, and (iii) the rate of heat transfer fromthe entire plate