A perfectly insulated stainless steel (type 304 k = 14.4 W/m K) rod of diameter 0.01 m has one end held at a temperature of 50oC and the opposite end at 293 K. Calculate the rate of heat transfer if the rod is a) 20 cm in length b) 50 cm in length

A perfectly insulated stainless steel (type 304 k = 14.4 W/m K) rod of diameter 0.01 m has one end held at a temperature of 50oC and the opposite end at 293 K. Calculate the rate of heat transfer if the rod is a) 20 cm in length b) 50 cm in length

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.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.48P: The handle of a ladle used for pouring molten lead is 30 cm long. Originally the handle was made of...

See similar textbooks

Related questions

Q: The wall of a room is made of plywood that has a thickness of 3.00 cm and an area of 18.0 m?. The…

A: Thickness of wall, L=3.00 cm=0.03 mArea of the wall, A=18.0 m2Temperature difference between inside…

Q: A container used to store ice is made of wood 5.0 cm thick and has an effective area of 12,000 cm2…

Q: A rectangular wall of length "L" m and height "H" m is made from a thick bricklayer of 39 cm.…

A: Heat Transfer Representation

Q: 1. A beverage cooler is in the shape of a cube, 42 cm on each inside edge. Its 3.0-cm thick wall are…

Q: 4- A furnace wall consists of three layers of blocks. The inner layer is of 10 cm thickness made of…

A: The above question is related to the concept of heat transfer. Heat is nothing but the energy…

Q: Q1- An exterior wall of a house consists of 10.2 cm brick and 3.8 cm gypsum plaster. What thickness…

Q: Two thermal reservoirs are connected by a solid copper bar. The bar is 2 m long, and the…

A: The temperature distribution represents the temperature at finite points on the surface. The…

Q: A truncated cone 30 cm high is constructed of aluminum. The diameter at the top is 7.5 cm, and the…

Q: A steel bar 7 cm long is welded end to end to a copper bar 21 cm long. Both bars are insulated…

A: The temperature at the junction of the two bars is 28.12oC.

Q: Q1) A laser slab with thermal conductivity of 5 W/m. K, thickness of 2 cm, has a uniform heat…

A: Fourier's law Fourier's law The law of heat conduction, also known as Fourier 's law, states that…

Q: Exercise 4.6.3 A solid cylinder of 10 cm diameter generates 0.3 G W/m' of heat due to nuclear…

A: GivenD=10cm=0.1mR=0.05mq=0.3 G W/m3=300 kW/m3To=40oCh=30 W/m2 Cok=15 W/mC o

Q: Rods of copper, brass, and steel—each with cross-sectionalarea of 2.00 cm2—are welded together to…

A: (a) The heat flow through the copper rod is equal to the heat flows through the brass and steel rod.…

Q: Calculate the heat transfer per unit area of a concrete which has a thickness of 300 mm, the…

Q: Convection heat transfer from a plate (2 m x 2 m) is 450 W. If surface temperature of plate is 450 K…

A: Given, Area of plate = A = 2 m x 2 m = 4 m2 Heat transferred = Q = 450 W Surface temperature = Ts =…

Q: c. Short answer You need to calculate the temperature at the free end (tip) of a long fin. The…

A: c. The condition which should not be used for calculating the temperature at the end of longfin is…

Q: A) (2 marks) An exterior wall of a house with (12 cm )thickness of common brick (k-0.7W/m.'C)…

Q: Teamwork Ch2-Heat conduction equation 1. A pipe in a manufacturing plant is transporting superheated…

Q: A finned surface has been added to cool an electronic part. The surface temperature of the…

A: Given, T=60°C h=40 W/m2K k=180 W/mK As, fin is of finite length and loses heat by convection from…

Q: Materials expand when heated. Consider a metal rod of length L0 at temperature T0. If the…

A: Given: α=1.24×10-5°CL0=40 cmT0=40°C

Q: a) A house walls that are 19 cm thick and have an average thermal conductivity four times that of…

A: Solution (a) Given data: The thickness of the house walls, t = 19 cm. The surface area of the…

Q: A plane wall that is 20 cm thick and has a constant thermal conductivity k=3 W/m-K undergoes one…

Q: A solid cylinder of length 5 cm and radius 1 cm, made of alloy k = 100 W/mK is kept in ambient…

A: given:Length of cylinder, L=5 cm or 0.05 mradius of cylinder, r=1 cm or 0.01 mthermal conductivity,…

Q: 70- 60- 50- 40- 30 20- 10- T. Distance X in cm 4 6. 7. 8 10 Calculate the following: Thermal…

A: The graph gives a plot of distance vs. temperature for an experiment. For a given point on the plot,…

Q: 236 °C steam flows in a pipe which features are given below. Inner and outer diameters of pipe are…

A: First of considering uninsulated pipe.

Q: In the figure below, a cross-section of a large electric-arc furnace wall is depicted. The exterior…

Q: 01: Consider one-dimensional conduction in a plane composite wall (Tm x pelow. The outer surfaces…

Q: A wall thickness is 0.05. If the temperature of the inner surface is 40°C and the outer surface is…

Q: f thickness 30 cm and thermal conductivity 0.69 W/m-°C re maintained at temperatures of 20°C and…

A: Given Data⇒ Dimensions of brick(a,b)=5m×6m Thickness(t)=30 cm=0.3 m Temperature : T1=50CT2=200C…

Q: Hot water (specific heat of 4.18 Kj/kgK) at 66C is flowing through a metal pipe (6 m long, 2 cm ID,…

A: Given Hot water is flowing through a metal pipe. Specific heat of water = 4.18 Kj/KgK Temperature…

Q: A room has a pine ceiling [ k = 0.12 W/(m•C°) ] that measures 3.0 m x 4.0 m x 2.0 cm. On a cold day,…

Q: The surfaces of a wall with uniform heat generation of 16535W/m³ are at 269°C and 108°C. If the wall…

Q: A house wall is composed of 3 layers in series to each other. There is an Aluminum layer that is 4…

Q: (1) The temperature of inner surface of insulation wall is t,=100°C, while the outer surface…

A: To obtain the heat transfer coefficient associated to the outer surface, we must equate the heat…

Q: Thermodynamics In a solid sphere of 0.2 m diameter, heat is generated at the rate of 1.2 x 106…

A: Given:d=0.2 mq=1.2*106 W/m3Tc=300°Ck=50 W/m.k

Q: A container used to store ice is made of wood 5.0 m thick and has an effective area of 12,000 cm2…

Q: An iron plate 2 cm thick has a cross-sectional area of 5,000 cm2. One of the faces is at 150 ◦C and…

A: Consider the diagram as shown below for the given system.

Q: A hot plate (0.15 m, and 0.2 m) is to be cooled by attaching aluminum fins of square cross section…

Q: Q2 A cooling system constructed from aluminum heat sink [k-239 W/m. KJ is shown below. The thickness…

Q: The temperature distribution through a furnace wall consisting of firebrick and high- temperature…

A: Given data: - The temperature at section 1 is T1 = 760 oC. The temperature at section 2 is T2 =…

Q: A truncated cone 30 cm high is constructed of aluminum. The diameter at the top is 7.5 cm, and the…

A: Given Data: The height of the truncated cone is h = 30 cm. The diameter of the top is d = 7.5 cm…

Q: based on a large 4 cm thick plate that is initially at a uniform temperature of 20°C that is heated…

Q: A steel bar 7 cm long is welded end to end to a copper bar 3 cm long. Each bar has a square cross…

Q: A finned surface has been added to cool an electronic part. The surface temperature of the…

A: Given: Surface temperature of the electronic part (Ts)=60°CAmbient temperature (T∞)=25°C (assumed…

Q: a. The wall of a building has a surface area of 50 m2. The outside layer of the wall is 20 cm thick…

A: Given data: Surface area of the wall, A = 50 m2 Thickness of concrete wall, Lc = 20 cm Thermal…

Q: A steel bar 4 cm long is welded end to end to a copper bar 3 cm long. Each bar has a square cross…

Q: Thermal resistance of the wall, 2. Heat transfer rate across the wall.

A: given: t1( cement plaster)=20 mm t2(brick= 24 mm t3= 20 mm TO determine: THe thermal resistance The…

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

A perfectly insulated stainless steel (type 304 k = 14.4 W/m K) rod of diameter 0.01 m has
one end held at a temperature of 50oC and the opposite end at 293 K. Calculate the rate of
heat transfer if the rod is
a) 20 cm in length
b) 50 cm in length

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

Step 2

Step 3

Step 4

Step by step

Solved in 4 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

3.17 A 1.4-kg aluminum household iron has a 500-W heating element. The surface area is . The ambient temperature is 21°C, and the surface heat transfer coefficient is . How long after the iron is plugged in does its temperature reach 104°C?
The handle of a ladle used for pouring molten lead is 30 cm long. Originally the handle was made of 1.9cm1.25cm mild steel bar stock. To reduce the grip temperature, it is proposed to form the handle of tubing 0.15 cm thick to the same rectangular shape. If the average heat transfer coefficient over the handle surface is 14 W/m K, estimate the reduction of the temperature at the grip in air at 21C.
One end of a 0.3-m-long steel rod is connected to a wall at 204C. The other end is connected to a wall that is maintained at 93C. Air is blown across the rod so that a heat transfer coefficient of 17W/m2 K is maintained over the entire surface. If the diameter of the rod is 5 cm and the temperature of the air is 38C, what is the net rate of heat loss to the air?
How can you find the thermal conductivity of a metal bar in experimentally? Explain the concept of driving potential as applicd to heat transfer problems. Does conduction play any role in the process of convective heat transfer? Explain.
How long must a 0.4 cm cylindrical copper fin be if the temperature of its insulated tip exceeds thesurrounding air temperature by 20% of T0 – T∞? Consider air temp to be 20°C and ℎ̅ = 28 W/m2K. Book gives answerof 27.3 cm.• You can use figure 4.9a or equation 4.45 in the book to find the right mL for the desired  at the tip. • Recall the nondimensional temperature is  = (T – T∞)/(T0 – T∞)
In a solid sphere of 0.2 m diameter, heat is generated at the rate of 1.2 x 106 W/m3. The center temperature is 300°C. Conductivity is 50 W/m-K. What is the surface temperature?
Rods of copper, brass, and steel—each with cross-sectionalarea of 2.00 cm2—are welded together to form a Y-shaped figure. Thefree end of the copper rod is maintained at 100.0°C, and the free ends ofthe brass and steel rods at 0.0°C. Assume that there is no heat loss fromthe surfaces of the rods. The lengths of the rods are: copper, 13.0 cm;brass, 18.0 cm; steel, 24.0 cm. What is (a) the temperature of the junctionpoint; (b) the heat current in each of the three rods?
plz answer this ASAP,thx One surface of a copper plate that is 3 cm thick has a constant temperature of 400 ° C while the temperature of the other surface is kept constant at 100 ° C. Describe the temperature profile and how much heat is transferred across the plate ?, k copper = 380 watts/m.k with a cross -sectional area of 4 cm².
Presents the diagram of the problem, necessary formulas, clearance and numerical solution: An iron plate 2 cm thick has a cross-sectional area of 5,000 cm2. One of the faces is at 150 ◦C and the other is at 140 ◦C. How much heat flows through the plate each second? For iron, kT = 80 W/m K.
A finned surface has been added to cool an electronic part. The surface temperature of the electronic part in contact with the fins is 60 ° C, the convection coefficient between the environment and the finned surface is 40 W / m? .K and the thermal conductivity coefficient for the fin material (aluminum) is 180 W / m.K. a. The amount of Heat (W) per unit time thrown into the environment in case the electronic part has wings or no blades, b. Find out wing effectiveness and efficiency?
A very long fin ( k= 372 W/m .o C ) 2.5 cm diameter has one end maintained at 90 oC . The rod is exposed to a fluid whose temperature is 40oC . The heat transfer coefficient is 3.5 W/m2 . oC . How much heat is lost by the rod .
A pipe passes through a room in which the surrounding air is at 22 ºC. The diameter of the pipe is 200 mm, the length of the pipe is 3metersand its surface temperature is 250ºC and the emissivity of the surface is 0.9 What is the surface emissive power (radiation heat loss)? If convection heat transfer coefficient from the surface to the air is 20 W/m2.K, what is the rate of heat loss from the surface of pipe by convection? Total heat loss from the surface of the pipe per unit length