Example 7.1 Air at a pressure of 6 kN/m? and a temperature of 300°C flows with a velocity of 10 m/s over a flat plate, 0.5 m long. Estimate the cooling rate per unit width of the plate needed to maintain it at a surface temperature of 27°C. Aconv T. T=27°C L

Example 7.1 Air at a pressure of 6 kN/m? and a temperature of 300°C flows with a velocity of 10 m/s over a flat plate, 0.5 m long. Estimate the cooling rate per unit width of the plate needed to maintain it at a surface temperature of 27°C. Aconv T. T=27°C L

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: Atmospheric boundary layers can be estimated using turbulent flow approximations over a flat-plate…

A: Write down the given values along with suitable variables. u = 10 m/s k = 0.41 (Von Karman constant)…

Q: A cylinder (20 mm in diameter and 100 mm long) is heated internally by an electrical heater and is…

A: Given; Cylinder diameter, D=20 mm=0.02 m Cylinder length, L=100 mm=0.1 m Air velocity, V=20 m/s Air…

Q: Air at standard pressure flows across a flat plate at 3m/s. The temperature surface is 50oC and the…

Q: Forced air at Too = 25°C and V = 17 m/s is used to cool electronic elements on a circuit board. One…

Q: An L1-m-long vertical copper tube of inner diameter Di nm contains liquid water at Tw=0°C. On a…

A: Given-Information:- L = 1 m Di = 21 mm = 0.021 mt = 2 mm = 0.002 mTw = 0°C = 273 K V = 3m/sT∞ =…

Q: Consider two cases involving parallel flow of dry air at V = 5 m/s, T=45°C, and atmospheric pressure…

Q: Cold air at temperature of 10 C and velocity of 1 m/s is moving parallel to a flat plate with the…

A: Temperature of the cold airTemperature of the flat plateVelocity of the airLength of the…

Q: A long, cylindrical, electrical heating element of diameter D = 14 mm, thermal conductivity k = 251…

A: Note that the initial surface temperature is not given in the question, so I have taken the film…

Q: 1-The wind blows with velocity 0.4 m/s parallel to the both sides of a flat plate with rectangular…

A: Note: As per Bartleby guideline only 3 subparts have to be solved at the time. So, upload other…

Q: Metallic cylinder 10 mm in diameter maintained at 50 °C with the engine oil fluid in a cross flow…

Q: Air at standard pressure flows across a flat plate at 3m/s. The temperature surface is 50oC and the…

A: V= 3m/sTs = 500 CTo = 200 Cx=1 m

Q: a) Air at 30°C (density=1.165 kg/m³, kinematic viscosity = 16x10-5 m²/s) flows over a flat plate at…

A: According to question:- density of airρ=1.165kg/m3kinematic viscosity of airν=16×10-5m2/sfree stream…

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 standard pressure flows across a flat plate at 3m/s. The temperature surface is 50oC and the…

Q: Air at 1 atm with a velocity of 4 m/s and a temperature of 50oC flows over a flat plate that is at a…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Water at 30 °C enters a pipe of 25 mm in diameter and 1 m in length with a mean velocity of 0.06…

A: The outlet temperature of the water.Given:The inlet temperature of the water is .The diameter of the…

Q: A boundary layer forms on a flat plate which is set parallel to an airstream, at standard sea level…

Q: 8- Air (p = 1.21 kg/m') flows over a thin flat plate 1 m long and 0.3 m wide. The flow is uniform at…

Q: KNOWN: Length of isothermal flat plate in parallel flow, L. FIND: Expression for the Reynolds number…

A: Step 1: Determination of the expression for Reynold's number in given case:Nusselt number for mixed…

Q: Steel (AISI 1010) plates of thickness 8 = 6 mm and d length L = 1 m on a side are conveyed from a…

Question

Example 7.1
Air at a pressure of 6 kN/m² and a temperature of 300°C
flows with a velocity of 10 m/s over a flat plate, 0.5 m long.
Estimate the cooling rate per unit width of the plate needed
to maintain it at a surface temperature of 27°C.
9conv
Uo, T.
T=27°C
L

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

Step 2

Step 3

Step 4

Step 5

Trending now

This is a popular solution!

Step by step

Solved in 5 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Fick’s Law of Diffusion and Mass Transfer

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

Please don't provide handwritten solution ....
Engine oil at 100°C flows on the top surface of a 1-m-long flat plate maintained at 20°C. The oil’s freestream speed (u infinity) is 0.1 m/s. Find the engine oil properties from the table A.5 A. Evaluate the Reynolds number, local convection coefficient, heat flux and shear stress at the end of the plate (x = L). Is the air flow laminar or turbulent over the plate?B. Evaluate the average convection coefficient, average heat flux, average shear stress and drag force over the plate.
Air at a pressure of 1 atm and a temperature of 250 °C is in parallel flow over a top surface of a flat plate that is maintained at a uniform temperature of 20 °C. The plate has a length of 0.35 m (in the flow direction) and a width of 0.2 m. The Reynolds number based on the plate length, ReL is 9x10“. (a) Find the rate of heat transfer to the plate. (b) If the free stream velocity of air is increased 5 times and pressure increased 4 times, what will be the rate of heat transfer? For air at 1 atm: assume k=0.0299 W/m.k, Pr =0.70. Draw sketch and show all calculations.
A vehicle carrying refrigeration box is moving with a speed of 24 m/s on a road withambient temperature of 323 K. The dimensions of box are 3 m(H) × 4 m (W) × 10 m (L).Assume a wall temperature of 283 K and air flow is parallel to the longest side of the box.Neglecting the heat loss from the front side and backside of the box, calculate heat lossfrom four surfaces. For flow over flat surfaces useNu = 0.036(Re)0.8(Pr)1/3The properties of air at bulk mean temperature are : = 1.165 kg/m3, Pr = 0.701, cp = 1005 J/kg – K,  = 16 × 10–6m2/s
O. Air with free stream temperature of 10 C is flowing over a flat plate (1.5m long and Im wide). The air is flowing along 1.5m side of the plate. The plate is maintained at 90'C. Find the velocity of air required to have a rate of heat dissipation as 3.75 kW. Use the correlations: Nu =0.664Reos Pro33 for laminar flow Nu, = (0.037RE-871)Pr3 for turbulent flow Take the properties p = 1.0877 kg/m u=2.029×10 m/s, k=0.028 W/mK, C,-1.007KJ/kg.K and Pr-0.703