A flat-bottom barge is towed on a water surface at 2.57 m/s. The barge is 3.66 m wide and 6.10 m long. Estimate the convective heat transfer coefficient if the mean temperature of the barge bottom surface

A flat-bottom barge is towed on a water surface at 2.57 m/s. The barge is 3.66 m wide and 6.10 m long. Estimate the convective heat transfer coefficient if the mean temperature of the barge bottom surface

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.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.13P

See similar textbooks

Related questions

Q: A thin flat plate of length 1 m separates two air streams flowing in parallel over the opposite…

Q: Air at atmospheric pressure and 27 degree celsius is blown across a long 4.0-cm diameter tube at a…

A: Solution:

Q: Hot water is flowing through a 3.5 cm (1-1/4") schedule 40 steel pipe at a velocity of 1.8 m/s. The…

A: Given:- v=1.8m/s di=3.5cm Ti=110°C k=0.15W/m°C L=15m To find:- Drop in the temperature of the water…

Q: Consider a parallel flow with velocity of 5 m/s and at ambient temperature of 20°C flows over a flat…

Q: Air at 25 ° C blows over the hot steel plate whose surface temperature is maintained at 150 ° C. The…

A: T1=Hot steel plate whose surface temperature=150T∞=Temperature of air=25°Ch=Convective heat transfer…

Q: A steel tube with 5 cm internal diameter, 7.6 cm outer diameter and k=15W/m °C is covered with an…

Q: Air at 20°C blows over a 50 x 75 cm hot plate made of carbon steel (AISI 1010) with 2 cm thickness.…

Q: Calculate the natural convection heat transfer coefficient for a vertical stainless pipe, 100 mm…

A: Pipe diameter, d=100mm=0.1m Pipe length, L=0.9m Pipe surface temperature, Ts=145oC The ambient air…

Q: A tube bank consists of 300 tubes at a distance of 6 cm between the centerlines of any two adjacent…

Q: Air at 25 ° C blows over the hot steel plate whose surface temperature is maintained at 150 ° C. The…

A: Write the given data with suitable variables: T∞=25 °CTs=150 °Ch=40 W/m2-°Ck=45 W/m-°CA=50 cm×40…

Q: Engine oil at 100°C and a velocity of 0.15 m/s flows over both surfaces of a 1.1-m-long flat plate…

A: Given: The temperature of engine oil, T = 100 C The speed of engine oil, v = 0.15 m/s The length of…

Q: A fabricated food, in the form of small spherical pellets, is to be frozen in an air-blast freezer.…

A: Given Data Air surrounding temperature = -40 °C Product temperature =25°C+273=298K Initial freezing…

Q: Determine: (a) The velocity and thermal boundary layer thicknesses at the trailing edge. (b) The…

Q: Engine oil at 100°C and a velocity of 0.20 m/s flows over both surfaces of a 0.8-m-long flat plate…

A: Given that: T = 100 oC Surface temperature = Ts = 20 oC Velocity = V = 0.2 m/s L = length = 0.8 m It…

Q: 8 A copper hot-water cylinder of length 1-0 m and radius 0-20 m is lagged by 20m of material of…

Q: Calculate the free convection heat transfer coefficient for a plate 6 ft high and 8 ft wide at 120…

A: As it is not mentioned that which question needs to be solved, please find the solution of first…

Q: U.=20m/s T=24°C Rectangular plate has an unheated starting length of 20 mm. If the surface…

A: Given, Velocity of the flow U∞=20m/s Temperature of the incoming air T∞ = 24°C Unheated length of…

Q: A heat treat steel plate measures 3 m *1 m and is initially at 30 degree Celsius. It is cooled by…

A: Given Data Area of steel plate is : As=3×1=3 m2 Initial temperature is : T1=30°C Final temperature…

Q: EXAMPLE 7: Air at 5°C and 70 kPa flows over a flat plate at 6 m/s. A heater strip 2.5 cm long is…

Q: A steel tube with an external diameter equal to 1.5 cm is cooled by the action of a flow cross…

A: Given - Diameter (D) = 1.5 cm = 0.015 m Velocity of the flow (v) = 1 m/s Air tempreature (Ta) = 20…

Q: 8 A copper hot-water cylinder of length 1-0m and radius 0-20 m is lagged by 20m of material of…

A: Given: Length of the pipe (L)=1mRadius of the pipe=0.20mThickness of the lagging (t)=0.020mHeat…

Q: Q) Engine oil at 25 degrees * C flows over a 30 cm long 20 cm wide plate at 1.5 m/s which is heated…

A: The answer is given in below step

Q: A thermocouple junction, which may be approximated as a sphere, is to be used for temperature…

Q: U=20m/s T=24°C Rectangular plate has an unheated starting length of 20 mm. If the surface…

A: Given : U∞=20 m/sT∞=24°CLunheated=20 mmL=30 mm

Q: Liquid at 23° C flows at 1.5 m/s over a smooth, sharp-edged, flat surface 10 cm in length which is…

Q: Air at 400C flows with a velocity of 7 m/s over a 5m long and 4m wide surface of a flat plate whose…

Q: Engine oil at 100°C and a velocity of 0.05 m/s flows over both surfaces of a 1.1-m-long flat plate…

Q: A fabricated food, in the form of small spherical pellets, is to be frozen in an air-blast freezer.…

A: Write the given data for the problem. Ti=25°CTa=-30°C Tf=-2.5°C D=1.2 cm ρ=980 kg/m3 h=50…

Q: Consider convective cooling of a two-dimensional streamlined strut. Rather than conducting…

Q: Air at 20°C blows over a 50 x 75 cm hot plate made of carbon steel (AISI 1010) with 2 cm thickness.…

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

Q: Air at 20-C blows over a hot plate 50 by 75 cm maintained at 250-C. The convection heat- transfer…

A: T0=20°CA= 50×75 cm2A=.375 m2Tw=250 °Ch=25 Wm2°C Heat transfer rate Q=hAs∆T

Q: Consider a flat plate positioned inside a wind tunnel, and air at 1 atm and 20°C is flowing with a…

Q: Air (can be assumed as an ideal gas) at an ambient temperature of 30°C flows across (perpendicular…

Q: Water flows over a heated plate as shown below. The plate length is 0.17 m and its boundary…

Q: For safety reasons, parts can be directly blown by air. with dimensions of 15 cmx20 cm, which are…

A: Given:Length of PCB,L=20 cm=0.2mWidth of PCB,w=15 cm=0.15mCross sectional area of…

Q: Engine oil at 100°C and a velocity of 0.15 m/s flows over both surfaces of a 1.2-m-long flat plate…

Q: Air at 25 ° C blows over the hot steel plate whose surface temperature is maintained at 150 ° C. The…

A: Given, Air temperature, T∞=25 °C Steel plate surface temperature, Ts=150 °C Area of the plate,…

Q: Air at 1 atmosphere at T : 250 K and a free flow velocity of 30 m/s flows across a cylinder 2.5 cm…

Q: Air at 25 ° C blows over the hot steel plate whose surface temperature is maintained at 250 ° C. The…

A: Given data as per question Temperature of air =250c Hot steel plate whose surface temperature is=…

Q: A steel tube with 5 cm internal diameter, 7.6 cm outer diameter and k=15W/m °C is covered with an…

Q: Water at 20°C flows with a velocity of 10m/s over a flat plate which is maintained at 80°C. Find the…

Q: Engine oil at 100°C and a velocity of 0.15 m/s flows over both surfaces of a 1.1-m-long flat plate…

A: When an object moves in a linear direction, then the distance travelled by the object in a unit time…

Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

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 1 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

3.10 A spherical shell satellite (3-m-OD, 1.25-cm-thick stainless steel walls) re-enters the atmosphere from outer space. If its original temperature is 38°C, the effective average temperature of the atmosphere is 1093°C, and the effective heat transfer coefficient is , estimate the temperature of the shell after reentry, assuming the time of reentry is 10 min and the interior of the shell is evacuated.
5.7 The average Reynolds number for air passing in turbulent flow over a 2-m-long, flat plate is . Under these conditions, the average Nusselt number was found to be equal to 4150. Determine the average heat transfer coefficient for an oil having thermal properties similar to those in Appendix 2, Table 18, at at the same Reynolds number and flowing over the same plate.
5.43 A refrigeration truck is traveling at 130 km/h on a desert highway where the air temperature is . The body of the truck is idealized as a rectangular box 3 m wide, 2.1 m high, and 6 m long, at a surface temperature . Assume that (1) the heat transfer from the front and back of the truck is neglected, (2) the stream does not separate from the surface, and (3) the boundary layer is turbulent over the whole surface. Calculate the required cooling rate of the refrigeration unit.
Determine the rate of heat loss from the wall of a building resulting from a 16 km/h wind blowing parallel to its surface. The wall is 24 m long and 6 m high, its surface temperature is 27C, and the temperature of the ambient air is 4C.
Example 1: Engine oil at 60°C flows over the upper surface of a 5-m-long flat plate whose temperature is 20°C with a velocity of 2 m/s (Figure). Determine the total drag force and the rate of heat transfer per unit width of the entire plate.
Air at atmospheric pressure and a temperature of 25 degrees C is in parallel flow at a velocity of 5 m/s over a 1-m-long flat plate that is heated from below with a uniform heat flux of 1250 W/m2 . Assume the flow is fully turbulent over the length of the plate. Take ν = 18.76 × 10−6 m2/s, k = 0.0284 W/m·K and Pr =0.703. (a) Calculate the plate surface temperature, Ts(L), and the local convection coefficient, hx(L), at the trailing edge, x = L. (b) Calculate the average temperature of the plate surface.
2.0 Engine oil at 100°C and a velocity of 0.25 m/s flows over both surfaces of a 0.8-m-long flat plate maintained at 20°C.Determine:(a) The velocity and thermal boundary layer thicknesses at the trailing edge.(b) The local heat flux and surface shear stress at the trailing edge.(c) The total drag force and heat transfer per unit width of the plate.
Air at atmospheric pressure and 27 degree celsius is blown across a long 4.0-cm diameter tube at a velocity of 20 m/s. Determine the heat transfer rate per unit length. Assume that wall temperature is 60 degree celsius
Consider three fluids flowing over identical flat plates at a temperature of 27 °C with a speed of 7 m/s. The fluids are air, water, and engine oil. What is the value of the heat transfer coefficient and shear stress at a point 10 cm from the leading edge for each case.
Air at 1 atmosphere at T : 250 K and a free flow velocity of 30 m/s flows across a cylinder 2.5 cm in diameter. The cylindrical surface is kept at a uniform temperature of 350 K.Calculate: a. Heat transfer coefficient. b. The rate of heat transfer per 1 m of cylinder length.
Liquid at 23° C flows at 1.5 m/s over a smooth, sharp-edged, flat surface 10 cm in length which is kept at 57 °C. Calculate the average heat transfer coefficient for the plate and the h at 5 cm if a) the fluid is water and b) if the fluid is 50% glycerine, 50% water.