What is the thermal conductivity of bricks (in W/(m · K))? on each of these Calculate the R-value for the following materials.(a) 3 in. thick brickWhat is the thermal conductivity of bricks (in W/(mK))?W/(mK)What is the thickness of the brick in meters?0.0762What is the R-value (in m² K/W)?0.0762m².(b) 11 cm thick brickmWhat is the thickness of the brick in meters?0.11mWhat is the R-value (in m². K/W)?0.1100m². K/W(c) 15 in. thick concrete slabWhat is the thermal conductivity of concrete (in W/(mK))?0.2721W/(mK)What is the thickness of the concrete slab in meters?0.3809998• K/WmWhat is the R-value (in m20.0500m². K/W)?m². K/W(d) 22 cm thick concrete slabWhat is the thickness of the concrete slab in meters?0.22mWhat is the R-value (in m². K/W)?m². K/W0.1571(e) 1 cm thick human fat layerWhat is the thermal conductivity of human fat layer (in W/(mK))?W/(mK)What is the thickness of the human fat layer in meters?0.01m.What is the R-value (in m² K/W)?m². K/W

Answered: What is the thermal conductivity of…

Engineering

Civil Engineering

What is the thermal conductivity of bricks (in W/(m · K))? on each of these

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter15: Geothermal Energy

Section: Chapter Questions

Problem 18P

See similar textbooks

Related questions

Q: reflection on LEED Study of Green Lightweight Aggregates in Construction

A: Answer :- LEED accreditation stands for Leadership in Energy and Environmental Design. The purpose…

Q: The following subtended angles were read on a 2m long subtense bar using a theodolite. Compute for…

Q: How does the thermal conductivity of glass compare with that of metal?

A: Solution: Copper is generally considered a better heat conductor than glass because copper contains…

Q: The coefficient of linear expansion of steel is 1x10-5/°C. How much expansion should engineers…

A: Given data Length of span Coefficient of thermal expansion Change in temperature To find…

Q: A large slab of concrete (stone 1-2-4 mix) 40 cm in thickness initially has a uniform temperature of…

A: The change of the temperature is the effects the slab area because it is directly open to climate…

Q: A concrete-like material that is cast into a bar is fully restrained at each end against axial…

Q: Describe the basic properties of Kaolinite.

A: Kaolinite is a type of clay in which one tetrahedral layer of SiO4 (silica) attached with oxygen…

Q: a. What is the maximum pressure that the form needs to withstand if the wall is to be 114 mm thick,…

Q: 3. A steel bolt through a 31-in long aluminum tube has the nut turned on until it just touches the…

Q: Compute the safe wall thickness in mm of a 60-in steel tank with an internal pressure of 10 MPa. The…

Q: Briefly discuss four heat treatment methods to enhance the properties of steel.What are the…

A: Heat treatment is a technique of altering the physical and mechanical properties of metal without…

Q: The compound bar, composed ot the three segments shown, is initially stress-free. Compute the stress…

A: We know that the thermal stress in bars develop when the compound bar has both fixed ends and can't…

Q: Briefly discuss four heat treatment methods to enhance the properties of steel. What are the…

A: Heat treatment is the process of heating and cooling metals, using specific predetermined methods to…

Q: Why are ceramics used in compression only?

A: The ceramic materials are manufactured by firing and then shaping a nonmetallic mineral, like clay,…

Q: Estimate the tensile strength required to prevent cracking in a concrete-like material that is cast…

A: Given data:

Q: A steel plate is bent into a circular arc of radius 10 m. If the plate section be 120 mm wide and 20…

A: Given: E=2×105 Nmm2. Arc radius, R = 10 m. Area, A=120 mm×20 mm. y = 10 mm.

Q: Usage of Thermal Bricks in Constratuion.

A: The thermal brick is often called as fire brick which is a brick made of ceramic material to sustain…

Q: Assume the temperature of your skin is 32o If you touch a thick piece of aluminum at 75oC, what is…

A: Temperature of skin = 32oC Temperature of thick piece of Aluminium= 75oC Temperature of block of…

Q: A polymer cylinder (2) is clamped between rigid heads by two steel bolts (1), as shown. The steel…

Q: The black color in bricks results due to alumina O magnesia iron oxide O gravel O O O

A: Alumina does not impart any colour to brick yet, imparts moulding and plasticity.

Q: The compound bar, composed of the three segments shown, is initially stress-free. Compute the stress…

Q: nd use the following data: A (mm?) « (/'C) E (GPa) Bronze segment 2000 19.0 x 10-6 83 Aluminum…

A: The expression for Force is given as ∑∆lthermal-∆lforce=0 …(1) Here ,∆lthermal is the…

Q: What is effect of glass transition temperature on glass materials

A: The glass transition temperature is defined as the temperature below which an amorphous polymer is…

Q: Which of the glass do you select from the table below to join silicon carbide (SiC) rods. Justify…

A: Brief concept- Glass- It is a solid material. It is generally inorganic in nature. It is brittle and…

Q: state the differences between the coefficient of thermal expansion of steel and concrete.

A: steel used with the concrete is the main reason is the coefficient of the thermal expansion is same…

Q: Give the conclusion and recommendation of this experiment: DETERMINATION OF SPECIFIC GRAVITY AND…

A: Specific gravity: It is the ratio of weight of a given volume of solids to the weight of water with…

Q: 10. The compound bar, composed of the three segments shown, is initially stress-free. Compute the…

A: Suppose P force is developed in bars due KN to temp chanseFBD of bars Total deformation will be…

Q: Estimate the tensile strength required to prevent cracking in a concrete-like material that is cast…

A: Given data Length of bar( L)= 500 mm Initial cured temperature (To) = 23°C Final temperature (Tf)…

Concept explainers

Fire Place Construction and Layout

A fireplace is a chamber, made of different materials usually constructed to contain the fire for various applications. A fireplace is often known as a hearth. Fireplaces can be made of bricks, steel, stone, and concrete. Fireplaces serve as room heaters for cold areas and vary in design and heat efficiency.

Question

What is the thermal conductivity of bricks (in W/(m · K))? on each of these

Calculate the R-value for the following materials.
(a) 3 in. thick brick
What is the thermal conductivity of bricks (in W/(mK))?
W/(mK)
What is the thickness of the brick in meters?
0.0762
What is the R-value (in m² K/W)?
0.0762
m².
(b) 11 cm thick brick
m
What is the thickness of the brick in meters?
0.11
m
What is the R-value (in m². K/W)?
0.1100
m². K/W
(c) 15 in. thick concrete slab
What is the thermal conductivity of concrete (in W/(mK))?
0.2721
W/(mK)
What is the thickness of the concrete slab in meters?
0.3809998
• K/W
m
What is the R-value (in m2
0.0500
m². K/W)?
m². K/W
(d) 22 cm thick concrete slab
What is the thickness of the concrete slab in meters?
0.22
m
What is the R-value (in m². K/W)?
m². K/W
0.1571
(e) 1 cm thick human fat layer
What is the thermal conductivity of human fat layer (in W/(mK))?
W/(mK)
What is the thickness of the human fat layer in meters?
0.01
m
.
What is the R-value (in m² K/W)?
m². K/W

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, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

An aluminum pipe has a length of 52 m at a temperature of 6°C. An adjacent steel pipe at the same temperature is 8 mm longer. At what temperature will the aluminum pipe be 24 mm longer than the steel pipe? Assume that the coefficient of thermal expansion for the aluminum is 22.5x10-6/°C and that the coefficient of thermal expansion for the steel is 12.5×106/°C. Answer: °℃ Tf= i
An aluminum pipe has a length of 64 m at a temperature of 15°C. An adjacent steel pipe at the same temperature is 2 mm longer. At what temperature will the aluminum pipe be 6 mm longer than the steel pipe? Assume that the coefficient of thermal expansion for the aluminum is 22.5x10-6/°C and that the coefficient of thermal expansion for the steel is 12.5x10-6/°C. Answer: T₁= i °℃
A large slab of concrete (stone 1-2-4 mix) 40 cm in thickness initially has a uniform temperature of 30°C. One surface (x = 0.0 m) is insulated and the surface temperature of the other side (x = 0.4 m) is suddenly changed to 20°C. How many hours will it take for the temperature of the concrete at x = 0.0 m to be 25°C? The thermal properties of the concrete are as follows: k = 1.37 W/m °C a = 7.5x 10-m² /s %3D
state the differences between the coefficient of thermal expansion of steel and concrete.
6- A liquid has a specific weight of 59 lb/ft and a dynamic viscosity of 2.75 lb . s/ft'. Determine its kinematic viscosity.
An aluminum pipe has a length of 65 m at a temperature of 16°C. An adjacent steel pipe at the same temperature is 5 mm longer than the aluminum pipe. At what temperature (in degrees Celsius) will the aluminum pipe be 14 mm longer than the steel pipe? (Assume that the coefficients of thermal expansion of aluminum and steel are a, = 23 x 10-6/°C and a = 12 x 10-6/°C, respectively. Also assume that the temperature of both pipes change equally.) °C
Example 2: NaCl equivalent concentration 20,000 ppm. Temperature of %3D concentration 75°F. Find the Resistivity of the solution.
An aluminum pipe has a length of 69 m at a temperature of 8°C. An adjacent steel pipe at the same temperature is 5 mm longer. At what temperature will the aluminum pipe be 15 mm longer than the steel pipe? Assume that the coefficient of thermal expansion for the aluminum is 22.5×10-6/°C and that the coefficient of thermal expansion for the steel is 12.5×10-6/°C.
3. 6.0" wide wooden fence posts are embedded in a concrete driveway a distance 12.125" apart. There is a 1/16" gap between the post and the concrete (see diagram). The posts are installed when the temperature is 12°C. Determine if the gap will close when the temperature increases to 32°C and if not how big the gap will be at that temperature. The thermal expansion coefficients of wood and concrete are awood =32 x 105 °C and aconcrete =13 x 106 °C. 1 inch3D2.54 cm. 6.0" 12.0" 0.0625"
An aluminum pipe has a length of 60 m at a temperature of 10° C. An adjacent steel pipe at the same temperature is 5 mm longer than the aluminum pipe. At what temperature (degrees Celsius) will the aluminum pipe be 15 mm longer than the steel pipe? (Assume that the coefficients of thermal expansion of aluminum and steel are aAL=23x 10^-6°C and as=12x10^-6° C respectively)
Problem 2-- For a temperature rise of 100 degrees Fahrenheit and 10,000 pounds force shown, determine the final location of points B and C. For Aluminum A = 2 in² E = 107 psi a=12.8 x 10 in/F Bronze For Bronz A = 3 in² E = 15 x 10' psi 10,000 lbs. Alumin A a=10.1 x 10 in/F B 20° 16"
An aluminum pipe has a length of 54 m at a temperature of 10°C. An adjacent steel pipe at the same temperature is 8 mm longer. At what temperature will the aluminum pipe be 24 mm longer than the steel pipe? Assume that the coefficient of thermal expansion for the aluminum is 22.5x10-6/°C and that the coefficient of thermal expansion for the steel is 12.5×10-6/°C.