-5- For flow over a flat plate, the temperature distribution inside the boundary layer is given by:T-TT,-TIfk 0.03 W/m.K, determine the value of convective heat transfer coefficient.Answer: (h-6.28 W/m' K):0.015

-5- For flow over a flat plate, the temperature distribution inside the boundary layer is given by: T,-T sin T,-T 0.015 Ifk 0.03 W/m.K, determine the value of convective heat transfer coefficient.Answer: (h-6.28 W/m K):

-5- For flow over a flat plate, the temperature distribution inside the boundary layer is given by: T,-T sin T,-T 0.015 Ifk 0.03 W/m.K, determine the value of convective heat transfer coefficient.Answer: (h-6.28 W/m K):

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: Q1: Consider a hot automotive engine, which can be approximated as 0.40m wide, and 0.8m long…

A: Given Data The speed of the car is: γ=80 km/h=22.22 m/s The length of the engine block is: L=0.8 m…

Q: Air flows across a 20-cm-square plate with a velocity of 5 my/s. Free-stream conditions are 10:C and…

A: In general, there are three modes by which heat gets transferred from one place to another. The…

Q: 31. A uniformly heated square plate of 2 ft x 2 ft is exposed to cold air at 80 F. The heater output…

A: following is the solution to the above problem-

Q: 1- Air at 288.8 k and 101.32 kPa with a free stream velocity of 3.05 m/s is flowing parallel to a…

A: Given:

Q: Q3: Air flows across a 20-cm-square plate with a velocity of 5 m/s. Free-stream conditions are 10 C…

A: In general, there are three modes by which heat gets transferred from one place to another. The…

Q: Engine oil at 54oC54oC flows over the upper surface of a 5m5m long plate whose temperature is…

Q: For laminar forced convection over a flat plate, if the free stream velocity increases by a factor…

Q: Why is heat transfer faster in forced convection compared to natural convection

A: Natural convection: when heat transfer is taking place due to motion of fluid caused by density…

Q: Engine Oil at 58.95 degrees celsius Flows over a 5m long flat plate whose temperature is 20.11…

Q: In thermally fully developed flow of a fluid with constant properties, the local convection…

A: Thermally fully developed flow of fluid is in which temperature profile doesn't change along the…

Q: If the convective heat transf coefficient between a plate temperature of 230 ° C and is 30 m/m2K…

A: Given Data⇒ Convective heat transfer coefficient h=30Wm2-k Temperature of plate (T2)=2300C…

Q: Question - Maddy found the value of heat transfer coefficient 26 W/m^2 °C and faces the difficulties…

A: When energy in the form of heat is transferring by means of convection, the magnitude of heat…

Q: Estimate the temperature gradient at the surface by convection over a surface of 6m2 area if the…

Q: Cold air at 5°C enters a l2-cm-diameter, 20-m-long isothermal pipe at a velocity of 2.5 m/s and…

A: Assumptions steady flow of air exist. Properties of air are taken at average temperature of inlet…

Q: A 6cm diameter shaft rotates at 3000rpm in a 20cm long bearing with a uniform clearance of 0.2mm. At…

Q: Engine oil at 60°C flows over a 5 m long flat plate whose temperature is 20°C with a velocity of 2…

A: Given :- Too=60oc Ts=20oC Length= l=5m Width =W= unit length =1m Velocity =V=2m/s Density = e= 876…

Q: nvection. (a) is thinner than the hydrod

A: given: For the fluid flowing over a flat plate with Prandtl number greater than unity, the thermal…

Q: Hot carbon dioxide exhaust gas at 1 atm is being cooled by flat plates as shown in Fig 3. The gas at…

Q: Estimate the temperature gradient at the surface by convection over a surface of 7.8m2 area if the…

Q: The heat transfer from a 2-m-diameter sphere to a 25 °C air stream over a time interval of one hour…

Q: Consider a flat plate subject to parallel air flow (top and bottom) characteriz s, Too = 20°C with…

A: GivenT∞=20°CTs=80°CL=2mw=2mU∞=5

Q: -10-A circular, hot gas jet at T, is directed normal to a circular plate that has radius r, and is…

Q: A hot fluid (kfluid = 0.72 W/m∙K) is flowing as a laminar fully-developed flow inside a pipe with an…

Q: For fluids with small Prandt number the thermal boundary layer development is much choose your…

A: For fluids with small Prandtl number the thermal boundary layer development is much more rapid than…

Q: Air is flowing in parallel over the upper surface of a flat plate with a length of 4m. The first…

A: Heat supplied is the heat supplied for power generation or for the useful work of a machine. This…

Q: Air is flowing in parallel over the upper surface of a flat plate with a length of 4 m. The first…

A: Write the given data with suitable variables: L=4 mT=50 °Cv=0.5 m/sTa=10 °C

Q: A 6-cm diameter shaft rotates at 3000 rpm in a 20-cm long bearing with uniform clearance of 0.2 mm.…

Q: 9-94 A hot liquid (c, = 950 J/kg-K) flows at a flow rate PtD of 0.005 kg/s inside a tube with a…

Q: Consider a hot baked potato. Will the potato cool faster or slower when we blow the warm air com ing…

A: It will cool faster in case of warm air coming from lung.

Q: For flow over a flat plate of length L, the local heat transfer coefficient hx is known to vary as…

Q: Consider steady, laminar, two-dimensional flow over a hot plate. Does the convective heat transfer…

A: Given: Consider steady, laminar, two-dimensional flow over a hot plate The wall shear stress is…

Q: A 2m by 3m flat plate is suspended in a room, and is subjected to air flow parallel to its surfaces…

Q: Illustrate the concept of convection in heat transfer operation and also differentiate forced…

A: Convection Convection is a mechanism of energy transmission that combines the combined effects of…

Q: In flow over a surface, velocity and temperature profiles are of the forms u(y) = Ay + By? + Cy3 and…

A: Note- due to company policy i can provide you only one answer if you want to answer outher…

Q: Define and explain the physical significance of the following:(a)prandtl number(b) Reynolds number…

Q: Consider a flow over a surface with the velocity and temperature profiles given as u(v) = C1 (y + y²…

A: Given Data

Q: Example 1: Engine oil at 60°C flows over the upper surface of a 5-m-long flat plate whose…

Q: Water at 43.3°C flows over a large square plate at a velocity of 21 cm/s. The plate is 1.9 m long…

A: Reynolds number is calculated for V=.21 m/s. Nusselt number are found and from here H is calculated.…

Q: Required information Hot engine oil at 150°C is flowing in parallel over a flat plate at a velocity…

Q: 6-21 A metal plate is being cooled by air (kuid = 0.259 W/m-K) at the upper surface while the lower…

A: Given Data,

Q: Consider a hot automotive engine, which can be ap- proximated as a 0.5-m-high, 0.40-m-wide, and…

A: Given: The width of the rectangular block, w = 0.4 m The length of the rectangular block, L = 0.8 m…

Q: edge of the Tami lam (x) = Alampª tur (æ) = Aturæb Alam = 1.98 = -0.5 Atur = 4.15 = -0,3 Calculate…

A: Calculated average heat transfer coefficient for laminar and turbulent conditions for plates of…

Q: With the aid of diagram(s), discuss the variation of heat transfer coefficient with distance over a…

Q: nat are the darrerences beween velocity boundary layer and thermal boundarylayer? scuss about both…

Question

-5- For flow over a flat plate, the temperature distribution inside the boundary layer is given by:
T-T
T,-T
Ifk 0.03 W/m.K, determine the value of convective heat transfer coefficient.Answer: (h-6.28 W/m' K):
0.015

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

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 4 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

1.21 In an experimental set up in a laboratory, a long cylinder with a 5-cm diameter, and an electrical resistance heater inside its entire length is cooled with water flowing crosswise over the cylinder at and a velocity of 0.8 m/s. For these flow conditions, 20 kW/m of power is required to maintain a uniform temperature of at the surface of the cylinder. When water is not available, air at is used with a velocity of 10 m/s to maintain the same surface temperature. However, in this case, the cylinder surface heat dissipation rate is reduced to 400 W/m. Calculate the convection heat transfer coefficients for both water and air, and comment on the reason for the differences in the values.
. 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
Define and explain the physical significance of the following:(a)prandtl number(b) Reynolds number (c)Nusselt number In which mode of heat transfer is the convection heat transfer coefficient usually higher, natural convection or force convection?why?
Air is flowing in parallel over the upper surface of aflat plate with a length of 4 m. The first half of the plate length,from the leading edge, has a constant surface temperatureof 50°C. The second half of the plate length is subjected toa uniform heat flux of 86 W/m2. The air has a free streamvelocity and temperature of 2 m/s and 10°C, respectively.Determine the local convection heat transfer coefficients at1 m and 3 m from the leading edge. Evaluate the air propertiesat a film temperature of 30°C. Is the film temperatureTf = 30°C applicable at x = 3 m?
What regime favors heat transfer and why?Laminar, Turbulent or Transitional
Q3: Air flows across a 20-cm-square plate with a velocity of $ m/s. Free-stream conditions are 10-C and 0.2 atm. A heater in the plate surface furnishes a constant heat-flux condition at the wall so that the average wall temperature is 100-C. Calculate the surface heat flux and the value of h at an x position of 10 cm. Answers: Q= 1414 W, b= 13.3 Wm?.C
For air flow at a constant wall temperature of 100 ◦C and average bulk temperature of 40 ◦C through a 4-cm-ID pipe, determine the value of average convection coefficient for an inlet velocity of 0.8 m/s if the pipe length is (i) 1 m, (ii) 3 m, (iii) 10 m.
Hot engine oil at 150°C is flowing in parallel over a flat plate at a velocity of 2 m/s. Surface temperature of the 0.5-mlong flat plate is constant at 50°C. Determine (a) the local convection heat transfer coefficient at 0.2 m from the leading edge and the average convection heat transfer coefficient, and (b) repeat part (a) using the Churchill and Ozoe (1973) relation.
Liquid mercury at 250°C is flowing with a velocity of 0.3 m/s in parallel over a 0.1-m-long flat plate where there is an unheated starting length of 5 cm. The heated section of the flat plate is maintained at a constant temperature of 50°C. Determine (a) the local convection heat transfer coefficient at the trailing edge, (b) the average convection heat transfer coefficient for the heated section, and (c) the rate of heat transfer per unit width for the heated section.
Air at 24°C is blown over a hot pipe with a surface area of 2.94 m2 to dissipate 924 W of heat energy. What is the minimum convection heat transfer coefficient that will ensure that the temperature of the pipe surface is less than 45°C [round your final answer to two decimal places]?
Reconsider Prob. 9-20. Using the EES (or other) software, evaluate the effect of the plate thickness on the surface temperature exposed to the cold air. By varying the plate thickness from 0.01 to 0.1 m, plot the plate surface temperature on the cold air side as a function of the plate thickness. Prob A 0.2-m-long and 25-mm-thick vertical plate (k = 1.5 W/m∙K) separates the hot water from the cold air at 2°C. The plate surface exposed to the hot water has a temperature of 100°C, and the surface exposed to the cold air has an emissivity of 0.73. Determine the temperature of the plate surface exposed to the cold air (Ts,c).
Define Nusselt (Nu), Prandtl (Pr), Reynolds (Re) and Grashof (Gr) dimensionless numbers. State which numbers are used in free and forced convection to determine the heat transfer coefficient.