Concrete wall 30 cm thick has 10 cm wide void (area 0.1 m²) in the middle as shown. Find temperature difference between behind the void (T.) and the surface of the intact wall, Tw Assume: concrete = 0.76 W m¹ °C, Kair=0.026 W m¹ °C, and hair = 5 W m² °C¹.

Concrete wall 30 cm thick has 10 cm wide void (area 0.1 m²) in the middle as shown. Find temperature difference between behind the void (T.) and the surface of the intact wall, Tw Assume: concrete = 0.76 W m¹ °C, Kair=0.026 W m¹ °C, and hair = 5 W m² °C¹.

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: MECT361 Mechatronics Components and Instrumentation Please solve the problem in keupord 0.Consider…

A: To solve:Define the selection criteria, assign weights (importance), and evaluate the following…

Q: Find the veocities VA, VB, Vbox, and accelerations aд, ag, abox for the mechanism shown below. Link…

A: It is asked to find the velocity and acceleration of the link and box

Q: Determine friction force if P = 160N

A: Given the force.The mass of the crate.The static frictionThe kinetic friction

Q: Create an illustration or diagram of the amusement park ride called THE BUMPER CAR RIDE, then…

A: Given:Bumper car rideTo find:An illustration or diagram of the amusement park ride called THE BUMPER…

Q: 1. (a) The motion of a floating vessel through the surrounding fluid results in a drag force D which…

A: Since a) & b) questions are different , so according to our guidelines, we are supposed to…

Q: water is flowing at 4 m/s in a penstock pipe of 4500 m long. if celerity of the pressure wave…

Q: Problem 1: What is the degree of freedom vector for member 1? Make sure that you consider which node…

A: It is asked to find the degrees of freedom vector for member 1.

Q: A propeller-driven aircraft has an in-flight weight of 4,105 lb (equivalent to a mass of 1,862 kg)…

Q: Question 4 a) State the assumptions made in the definition of the rigid body and explain different…

A: The definition of a rigid body makes certain assumptions about the physical behavior of objects.…

Q: Rigid beam AB is supported by three bolts at A and a pin at B. The bolts at A are in double shear…

Q: The sprinter begins from rest at position A and accelerates along the track. If the stationary…

A: rate of rotation 13.1 deg/scompute velocity when sprinter crosses the 65 m mark.

Q: 1. Derivation of the stresses and sectional forces in biaxially bended beam. a) Make a graphs of the…

A: It is asked to plot Normal stress and find its extreme values

Q: Part 2 Calculate the component of the velocity in the 0-direction. 0 eo

Q: The normal strain in a suspended bar of material of varying cross section due to its own weight is…

Q: See the attached image 1) A long rod in the shape of a circular cone is rotating with constant…

Q: The maximum allowable tensile force in the members of the truss is (Ft)max = 1300 lb, and the…

A: According to the given data(Ft)max=1300lb(Fc)max=600lbConsidering the free body diagram belowWe need…

Q: The 1-meter long, 10-kg slender rod is released from rest when it is completely horizontal. The…

A: Lenght ? = 1 mMass = 10-kg k = 3 kN/mSpring is compressed by = 300 mm when the rod is horizontal,…

Q: a. A beam of length 6 m is subjected to the loading as shown in Fig. 3a. The uniformly distributed…

A: Given that, the beam is subjected to uniformly distributed load of intensity 2 kN/m between points A…

Q: How to get HV0.5 and height from HRC and what is the relationship between HRC and HV0.5.

A: Given:To find:Vickers hardness 0.5

Q: Calculate the condition of balance of a staircase leaning on a wall, if a force of static friction…

A: Given data :- A staircase is given and it is leaning on a frictionless wall.Weight of the staircase…

Q: Screw M14*2 Fasten with a hexagonal nut The bolt material meets the requirements within the 4.8…

A: To find:Find the largest tensile strength of the bolt that can be tolerated without breaking.

Q: Determine the moment of the force about point O. F = 300 N -0.4 m 45° 0.3 m 30°

Q: (a) Extend the control volume analysis used to derive the continuity equation to three-dimensional…

A: In these given problem , the questions a) ,b) & c) are different . According to our guidelines…

Q: A rigid bar ABCD is supported by two bars as shown in the figure. There is no strain in the vertical…

A: Bar ABCD is rigid.And normal strain in the rod 1:Because the length of the rod 1 is 900 mm.So the…

Q: 1. Composite Brick Wall A 3.0 in thick brick wall has an outside surface temperature of 15 o F at a…

Q: 200 lb 1.5 ft 200 lb -2 ft 1.25 ft 30° 30° -F F

Q: When filled to capacity, the unpressurized storage tank contains water to a height of h = 39 ft. The…

A: According to the given dataDensity=We need to find The maximum normal stress and The maximum shear…

Q: a) Find the degree of freedom of the dump truck mechanism shown below, and state what inversion of…

Q: What is the specific gravity of a gas having a density of 5.82 kg/m3?

A: This question is based on the concept of specific gravity.

Q: Slider A 1 с link (AB) = 500 mm link (BC) 42 mm link (CD) = ? D d For the mechanism Shown above...…

A: Length of the link ABLength of the link BCFrom the given figure according to the lines on the page…

Q: An airplane has a half-wingspan of 25 m. Determine the change in length of the aluminum alloy [a =…

Q: SECTION A: 1. (a) (b) (c) A lorry chassis beam with uniform cross section is of 10m long and…

Q: Steam enters a turbine steadily at a flow rate of 1 kg/s at 7 MPa and 500 degrees and exits as…

A: Inlet conditions:Mass flow rate (ṁ) = 1 kg/sInlet pressure (P1) = 7 MPaInlet temperature (T1) =…

Q: Part A A steel tube having an outer diameter transmit 9 hp when turning at 27 rev/min. 1 hp = 550…

A: Given data:The outer diameter, do = 2.5 in.The power transmitted, P = 9 hp.The turning revolution, N…

Q: a. noving An aircraft is getting loaded with checked luggage. The ramp that has a belt makes an…

Q: In the figure, rigid tee-beam ABC is supported at A by a single shear pin connection and at B by a…

A: Given the dimensions of the bar and cross section and the allowable stress in strut and factor of…

Q: A power plant operating on an ideal Rankine cycle has steam entering the turbine at 500°C and 2 MPa.…

A: To find:The thermal efficiency with pump work included and without considering pump work.

Q: The figure shows a 10 diametral pitch 18-tooth 20 straight bevel pinion driving a 24-tooth gear. The…

A: The diametral pitch, Pd = 10The number of tooth on bevel pinion, z = 18 toothThe pressure angle = 20…

Q: 5 a. most visitiv fogmost to sidsgo a ogniwore lamal's The cylinder A in Fig. 5a moves towards…

A: Initial velocity of A,uA=7 m/sInitial velocity of B,uB=0Mass of A,mA=5 kgMass of B,mB=20 kgStiffness…

Q: If the relation between speed (u) and density (k) is given by: u = ae-bk where a and b are…

Q: If the inlet diameter of the holding tank is 35cm and the outlet diameter is 30cm and the diameter…

Q: The y-coordinate of a particle in curvilinear motion is given by y = 5.2t3 -2.6t, where y is in…

Q: In an experiment, the temperature of a hot gas stream is to be measured by a thermocouple with a…

A: Given:The response time of the thermocouple is .The value of .The thermal conductivity is .The…

Q: How does the conduction of heat occur in a solid material, and what factors influence the rate of…

A: Heat conduction, also known as thermal conduction, is the transfer of heat energy by microscopic…

Q: A car P travels along a straight road with a constant speed v = 59 mi/hr. At the instant when the…

Q: 1.5 mm to new position Q', as shown in the figure. Determine the shear strain y at corner Q' after…

Q: A wooden beam is fabricated by nailing together three boards as shown. The boards have dimensions of…

A: Given-where, b1=12in,d1=1.9in,b2=1.9in,d2=11in,b3=6in,d3=1.9in V=400lbDetermine-(a)-…

Q: For the state of a plane strain with Ex, Ey and yxy components: (a) construct Mohr's circle and (b)…

A: εx = 250 × 10-6εy =310 x 10-6Yxy = -100 × 10-6

Q: For the state of a plane strain with εx, εy and γxy components: (a) construct Mohr’s circle and (b)…

A: Given state of a plane strain is-To find:(a) Construct Mohr’s circle and(b) The equivalent in-plane…

Q: The beam is supported by a pin at A and roller at B and supports a triangular distributed load and a…

A: Here we will apply the equilibrium conditions by taking the moment and drawing the free body diagram…

Question

Concrete wall 30 cm thick has 10 cm wide void (area 0.1 m²) in the middle as shown.
Find temperature difference between behind the void (T.) and the surface of the intact
wall, Tw.
Assume: concrete = 0.76 W m¹ °C, Kair= 0.026 W m¹ °C, and hair = 5 W m² °C.
T₁ = 32 °C
T₂ = 17 °C
air
10 cm
Concrete
Tv
Tw

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: Given data

VIEW

Step 2: Calculation of the temperature difference between the void Tv and the surface of the intact wall Tw

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 4 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

A modern cabin has a concrete floor that is 4.50 inches thick. Aroaring fire keeps the interior of the cabin at 21.0 0C while the airtemperature below the cabin is a chilly 2.00 0C. How much heat(J) is lost through the concrete floor in 4 hrs if the cabin measures4.50 m by 6.50m to 3 sig fig?
Find the minimum amount of diameter for the insulation of a spherical water tank? Radius of the tank is 10 m, thermal conductivity is 25 W/(m^2*K) and convective coefficient is 5 W/(m*K) 8 m not sufficient information 10 m 20 m 15 m
A man once walked from a beach on the Indian Ocean all the way to the top of Mt Everest, at roughly 29,000 feet. All else being equal, if the temperature at the start of his walk was 95 degrees, and if the adiabatic lapse rate is 3.5oF per thousand feet, what is your estimate of the temperature atop Everest?
1. Most bridges contain interlocking steel grates (α steel = 1.2 x 10 - 5 ºC -1 ) that allow the bridge toexpand and contract with the changes in temperature. The Golden Gate Bridge in San Francisco isabout 1350 meters long.(A) The seasonal temperature variation in San Francisco ranges from about 0ºC to 30ºC. Howmuch will the bridge expand between these two extremes?(B) What percent of the length of a subcompact automobile, 2.5 meters, does this gaprepresent?2. Selena has a fire in her fireplace to warm her 20ºC apartment. She realizes that she hasaccidentally left the iron poker (α iron = 1.2 x 10 -5 ºC -1 ) in the fire. How hot is the fire if the 0.60-meter poker lengthens 0.30 cm?3. Just before midnight, when the air temperature of 10.0ºC, Karl stops and fills the 0.0600 m 3 gastank in his car. At noon the next day, when the temperature has risen to 32ºC, Karl finds a puddle ofgasoline (βgas = 3 x 10 -4 ºC -1 ) beneath his car.(A) How much gasoline spilled out of Karl's car?…
The tension in the walls of a horizontal 0.1 m diameter pipe under a static pressure of 10000 cm of water and submerged to a depth of 10 m in a fresh-water river is:
The internet café, shown in the figure, is on the ground floor of a single storey (G) building in Çanakkale. The neighboring room, store, is not conditioned Downstairs: Basement (not conditioned) Upstairs: Terrace (sunlit) Outer walls: 30 cm brick, U=3.0 kJ/h.m2. 0C, exterior surfaces dark painted Inner walls: U=7.0 kJ/h.m2. 0C Ceiling: 15 cm concrete, U=2.0 kJ/h.m2. 0C Floor: U=6.0 kJ/h.m2. 0C Windows: Single window with single absorbing glass, metal sash, industrial type, shaded with dark colored, half drawn inside roller shade, wind speed is 16 km/h Outer door: U=5.0 kJ/h.m2. 0C, without glass (assume no solar heat gain through the outer door) Average occupancy is 45 people 2000 W electric lights in total 45 PC, each releasing 200 W of heat.a) Determine the appropriate db and wb temperatures (inside design conditions) for the office in summer conditions and calculate the heat gain at 16:00.b) Determine the appropriate db temperature, and find the wb temperature and also…
Air at atmospheric pressure enters a heating duct with dimensions of 3 x 6 in. The air enters the 16 ft long duct with a temperature of 32 F, and the duct surface is maintained at 150 F. If the air exit temperature is to be 68 F, what is the air flow, in lb/hr? (answer in whole number) For air, R = 53.342 ft-lbf/lbm-R, k = 0.173 Btu-in/ft2-hr-F, and cp = 0.24 Btu/lbm-
A hollow cylinder 80 cm long in diameter, one end closed, is immersed vertically with its closed end being held 7.50 m below the water surface. The cylinder is at first full of water, but compressed air is admitted from beneath in the immersed position until it has displaced two thirds of water. Patm-101.5 kPa. Find the total absolute pressure of air in the cylinder kPa. 7.5 m 0.8 m 0.6 0.3 Do not write the unit. You will only input the numerical answer in the space provided. Unit of the Correct Answer: kPa abs Decimal Places required in the final answer: 3
A rectangular gate 1.8 m high by 1.20 m wide is mounted on the vertical wall of an open rectangular tank filled with oil. The top of the gate is 1.2 m below the surface of oil. What is the minimum force F applied at the top edge of the gate required to keep it close assuming the gate is hinged at the bottom edge. (S=0.8)
A water tank is completely filled with liquid water at 20°C. The tank material is such that it can withstand tension caused by a volume expansion of 0.8 percent. Determine the maximum temperature rise allowed without jeopardizing safety. For simplicity, assume ? = constant = ? at 40°C.
An office space of 15 ft x12 ft x10 ft height. The heat loss through walls is (6949.8 Btuh) if Tb.l.=80 F , To= -10 F , and Uwall=0.143 Btu/hr.ft2.F ? True or false
Example 2: Double-pane window, each window have: Height = 0.8 m Width 1.5 m Thickness = 4 mm k (glass) = 0.78 W/m.K separation between two glasses (air) = 10 mm k (air) = 0.026 W/m.K Temperature of inner surface = 20°C Temperature of outer surface = -10°C Convection heat transfer coefficient on the inner surface h1= 10 W/m2·°C Convection heat transfer coefficient on the outer surface h2= 40 W/m2·°C Determine the heat transfer through the window?