Answered: How convective heat transfer is…

Engineering

Mechanical Engineering

How convective heat transfer is effected and on what factors it depends?

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 7.36P

See similar textbooks

Related questions

Q: Water is heated from 2°C to 78°C at a constant pressure of 100 kPa. The initial density of water is…

Q: Give examples of the three modes of heat transfer based on daily lives (with simple illustration)

A: To find daily life examples of modes of heat transfer.

Q: Consider water is flowing through a pipe with a 10 cm diameter at a flow rate of 0.2 kg/s. The inlet…

Q: Hot water at 90°C enters a pipe whose inner diameter is 2.5 cm at an average velocity of 0.6 m/s.…

Q: The local heat transfer coefficient of a flat plate that is obtained experimentally is equal to…

A: Given heat transfer coefficient hx=9x2+2ax+B Length of plate L=7 m Temperature of plate T=20∘C…

Q: 1. Dry air enters an industrial dryer with a pressure of 101 kPa, a temperature of 250°C, and at a…

Q: A hot dog can be considered to be a 12 cm long cylinder, whose diameter is 2 cm and whose properties…

A: (a) The biot number is Since the biot number is greater than 0.1, thus the lumped capacitance…

Q: Q) An apple has been put into a freezer at (-18°C) to be cooled. Initially, the apple is at a…

Q: leg of water at 47.8č constant pressure of 13.7 bar until it is converted into Steam withe 111 of…

Q: A Carnot refrigerator reguires 1.3 kW per tonne of refrigeration to maintain a region at low…

A: Find the cop of refrigerator and heat pump also find higher temperature.

Q: of the collector is 100°F. The emissivity of the exposed sur- face of the collector is 0.9.…

Q: Hot exhaust gases

A: Given data: The exhaust gas temperature at entry of pipe is T1=450°C The diameter of the pipe is…

Q: saturated steam at 110°C flows inside a steel pipe ( thermal conductivity 50W/mK) having an internal…

A: Basics of heat transfer.

Q: A pipe in a manufacturing plant is transporting superheated vapor at a mass flow rate of 0.3 kg/s.…

A: Convection heat transfer take place bw solid boundary and flowing fluid. It is of two types:- 1)…

Q: The net radiant-heat exchange between a 20-by-20 ft rough plaster panel-heated ceiling and a…

Q: A student living in a 3-m X 4-m X 4-m dormitory room turns on her 100-W fan before she leaves the…

A: Using the properties of air R=287 J/Kg-K Cp=1.005 KJ/Kg-K Cv=0.717 kj/Kg-K Heat transfer, Q=100W…

Q: Heat Transfer In the energy conservation equation, consider assumption and cross-out variables,…

Q: 2. Consider water is to be heated in a tube equipped with electric resistance heater on its surface.…

Q: In a power plant, pipes transporting superheated vapor are very common. In a certain plant,…

A: Given data as per question Mass flow rate =0.3 kg/s Inside diameter = 5 cm = 0.05 m Length of pipe =…

Q: A 6-in bare oxidized steel pipe (6.625 in O.D) carries steam at a temperature of 540°F and is…

A: The hear transfer due to radiation between two bodies at different temperatures is given by,…

Q: 3.2. Air flows parallel to a roof surface with a temperature of 10°C, and a velocity of7,5as given…

Q: For a saturated dry steam at 1,500 KPa that passes through a 100 mm (OD) steel pipe with a thickness…

A: We have given

Q: Q1: Consider a wall heated by convection on one side and cooled by convec on the other side. Show…

Q: A cylindrical copper rod of length 0.400 m and cross-sectional area 5.20 cm? is insulated to prevent…

A: Given data: The length of cylinder rod is l=0.4 m The area of the cross section is A=5.20…

Q: Brass plate of 6 cm thickness that are initially at 25 °C are heated by passing it through an oven…

Q: An average person produces 1.05 kg of moisture while taking a shower and 0.05 kg while bathing in a…

Q: A 2-m2 window has a surface temperature of 15°C, and the outside wind is blowing air at 2° C across…

A: Data given- A = 2 m2 Tsurface = 15°C Tair = 2°C h = 125 W/m2 K

Q: In a manufacturing facility, 2-in-diameter brassballs (k = 64.1 Btu/h·ft·°F, r = 532 lbm/ft3, and cp…

A: Let's first calculate the characteristic length and the Biot number to check whether the lumped…

Q: The condenser of a steam power plant operates at a pressure of 0.95 psia. The condenser consists of…

A: Given: The condenser pressure of power plant, Pc = 0.95 Psi The number of horizontal tubes, n = 144…

Q: E.6 By doing light exercise, a person produces heat at the rate of 600Kcal/h. If 60% of this heat is…

A: Given data: The rate of heat produced by person is Q = 600 Kcal/h. The time in which mass of water…

Q: During air cooling of steel balls, the convection heat transfer coefficient is determined…

A: Write the expression of the convective coefficient from the given relation.

Q: A heater plate measures 40 cm x 40 cm in the tank and is kept at a constant temperature of 70…

A: Given data: A = 40 cm x 40 cm Tp = 70o C Toil = 30o C ν=0.00026 m2 / s k=0.15 W / mK Pr=2900 Need to…

Q: The condenser of a steam power plant operates at a pressure of 7.38 kPa (Tsat = 40°C). Steam at this…

Q: A large slab 1.0 m thick is poured rapidly. The hydration process in the concrete (k=0.84 W/mK)…

Q: Water (T= 10 C, , k=0.644 W/m.C, u = 5.54x 10^-7 m2/s, Pr=3.55), flow over plate 1m x 1m, with…

Q: An automobile engine consumes fuel at a rate of 22 L/h and delivers 55 kW of power to the wheels. If…

A: Given, Fuel's volumetric consumption rate = V' = 22 L/h = 22×10-33600 m3/s Heating value of fuel =…

Q: A pipe in a manufacturing plant is transporting superheated vapor at a mass flow rate of 0.3 kg/s.…

A: Write the differential equation for the steady state one dimension heat conduction.

Q: thih Vertičal plate is subjected to uniform heat flux on one side, while the other side is exposed…

A: Solution: Given data :-Thin vertical plate L =1.7mcool air temperature T∞ =5οcmidpoint temperature…

Q: An automobile engine consumes fuel at a rate of 22 L/h and delivers 55 kW of power to thewheels. If…

A: Given data Density of fuel (ρ) = 0.8 g/cm3 = 0.8*1000 kg/m3 = 800 kg/m3 heating value (HV) = 44,000…

Q: Consider a vertical cylinder shaped refrigerator (L=90 cm, D=120 cm) where upper flat surface is at…

Q: In a power plant, a pipe with a diameter of 5 cm and a length of 10 m is used to transfer he gases.…

A: Given:d=5 cm =0.05 mL=10 mm=0.3 Kg/sT∞=20°CTe=100°C∆T=30°CC=2190 J/Kg.K

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

How convective heat transfer is effected and on what factors it depends?

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 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

1.60 Two electric resistance heaters with a 20 cm length and a 2 cm diameter are inserted into a well-insulated 40-L tank of water that is initially at 300 K. If each heater dissipates 500 W, what is the time required for bringing the water temperature in the tank to 340 K? State your assumption for your analysis.
What are the three methods of Heat Transfer? Explain each.
How to solve for % contribution of natural convection and radiation in the rate of heat transfer?
6.13 from A Heat Transfer Textbook fifth edition
Give examples of the three modes of heat transfer based on daily lives (with simple illustration)
Which of the following provides the basis of convection heat transfer? Group of answer choices Newton’s Law Fourier’s Law Stefan-Boltzmann Law Toricelli’s Principle
The net radiant-heat exchange between a 20-by-20 ft rough plaster panel-heated ceiling and a 20-by-10-ft side wall, which has an emissivity of 0.80, is 2400 Btu/hr. If the surface temperature of the ceiling is 120 deg. F, determine the average surface temperature of the side wall.
Q2.1 Explain the Fouling phenomenon. What is the effect of fouling on heat transfer rate?
any relationship between inlet, outlet diameter and Effectiveness in heat transfer? How outlet and inlet diameter effects on Effectiveness?
Air with a temperature of 128 °C, a density of 4.89 kg/m3 and a velocity of 121 m/s enters a nozzle with an inlet to outlet area ratio of 2:1 and exits with a density of 2.36 kg/m3. Determine the temperature at the outlet (in K).
An average man has a body surface area of 1.8 m2 and a skin temperature of 33°C. The convection heat transfer coefficient for a clothed person walking in still air is expressed as h = 8.6V 0.53 for 0.5 < V < 2 m/s, where V is the walking velocity in m/s. Assuming the average surface temperature of the clothed person to be 30°C, determine the rate of heat loss from an average man walking in still air at 10°C by convection at a walking velocity of (a) 0.5 m/s, (b) 1.0 m/s, (c) 1.5 m/s, and (d) 2.0 m/s.
A refrigeration plant stored 10 metric tons of eggs at a temperature of 15°C. To preserve the eggs by not spoiling them, they have to be cooled at -8°C. What is the refrigerating capacity of the plant in TOR if it is cooled for 12 hours? The specific heat of the eggs above and below freezing are 0.95 kcal/kg-°C and 0.4 kcal/kg-°C, respectively. The latent heat of fusion is 68.5 kcal/kg The freezing temperature is -3°C.