A horizontal pipe having a surface temperature of 67 °C and diameter of 20 cm is buried at a depth of 1 m in the earth at a location where k = 1.8 W/m-°C. The earth surface temperature is 15 °C. Calculate the shape factor if the pipe length is 10 m. A horizontal pipe having a surface temperature of 67 °C and diameter of 20 cm is buried at a depth of 1 m in the earth at a locationwhere k = 1.8 W/m-°C. The earth surface temperature is 15 °C. Calculate the shape factor if the pipe length is 10 m.A) 21.0B 21.3C) 31.3D 41.3

Answered: Image /qna-images/answer/1f6d2d44-c587-4b98-96ee-9f420f690ed9.jpg

horizontal pipe having a surface temperature of 67 °C and diameter of 20 cm is buried at a depth of 1 m in the earth at a location where k = 1.8 W/m-°C. The earth surface temperature is 15 °C. Calculate the shape factor if the pipe length is 10 m.

horizontal pipe having a surface temperature of 67 °C and diameter of 20 cm is buried at a depth of 1 m in the earth at a location where k = 1.8 W/m-°C. The earth surface temperature is 15 °C. Calculate the shape factor if the pipe length is 10 m.

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.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.23P: Using the information in Problem 1.22, estimate the ambient air temperature that could cause...

See similar textbooks

Related questions

Q: The flanged steel cantilever beam with riveted bracket is subjected to the couple and two forces…

A: Given:Forces acting on the cantilever:F1=2.10 kNF2=1.15 kN

Q: A thin metal plate is insulated on the back and exposed to solar radiation on the front surface. The…

Q: A certain insulation has a thickness of 2 cm. What thermal conductivity in W/m • *C is necessary to…

A: Givent=2cm=0.02mk=?∆T=-500oC -ve sign shows dropsq=400W/m2

Q: The rectangular bar is connected to the support bracket with a circular pin, as shown in the figure.…

A: Given : w = 2.25 in t = 0.375 in P = 4,800 lb d = 0.775 in The average bearing stress produced in…

Q: We will explore an example that connects the basic definitions and equations for different modes of…

Q: Determine the magnitude and direction with respect to the +x axis on the reaction at A and at C.…

Q: During a steady right turn, a person exerts the forces shown on the steering wheel. Note that each…

Q: The rack for storing automobile wheels consists of two parallel rods A and B. Determine the…

Q: 5. The block in the figure has a weight of 400 lb and an applied force of 600 lb to the right. There…

Q: 1. The force convection coefficient for a hot fluid flowing over a cool surface is 120W/m2-K. The…

A: For solution refer below images.

Q: At the beginning of compression in an ideal dual combustion cycle, the working fluid is 1 lb of air…

Q: the power output (W out.) in (MW) is Adiabatic steam turbine has inlet of 6 kg/s at 5 MPa, 600 oC.…

A: Given that: P1 = 5 MPa, T1 = 600 oC Mass flow rate of steam is 6 kg/s P2 = 100 kPa, x = 100 % It is…

Q: 3. In a test to determine the bulk modulus of a liquid it was found that as the absolute press was…

Q: What is the difference between lb·mass and lb · force ?______________ A. They are the same.…

Q: (a) Plot the data as engineering stress versus engineering strain. (b) Compute the modulus of…

A: Given Data d=12.8mm ***As per company policy we are supposed to do only three subparts if you need…

Q: Q1: Select the correct answer. ( A. Resilience is the energy absorbed by the material up to a.…

A: According to the guidelines, I can solve only first three subparts. For rest problem, repost in a…

Q: A fireworks show is choreographed to have two shells cross paths at a height of 103 ft and explode…

Q: Draw a hard sphere unit cell representation of a body centered cubic (BCC) crystal and derive the…

A: Body-Centered Cubic (BCC): A body-centered cubic structure consists of atoms arranged in a cube…

Q: 1. Draw a hard sphere unit cell representation of a body centered cubic (BCC) crystal and derive the…

Q: 1. Determine the magnitude and direction with respect to the +x axis on the reaction at A and at C.…

Q: 1. The specific weight of water at ordinary pressure and temperature is 62.4 lb/ft (9.81 kN/m³). The…

Q: Determine the Magnitude,direction and sense of the resultant for the Coplanar concurrent force…

Q: An inertial measurement unit (IMU) measures the following quantities? Select all statements that are…

A: Inertial measurement unit (IMU) is an electronic component which uses a combination of…

Q: A piece of metal weighs 377.8 kN in air. When submerged in oil, it weighs 102.5 kN. Find the volume…

A: Given data as per questionWeight of metal in air=377.8 kNWeight of metal When submerged in oil=102.5…

Q: For the truss loaded as shown, determine the equation for the line of action of the stand-alone…

Q: a hollow styrofoam cubical box, which is perfectly insulated at the bottom, has a length of 2-m on…

A: Length of the square box, l=2 mInside temperature of box, Ti=-10°CAllowed heat transfer, Q=500…

Q: id the displacement histories for the 1.6 seconds. Find the time t when the particle crosses the…

A: Plotting the acceleration and displacement histories for the 1.6 seconds and calculating the time…

Q: If the manometer top in the figure below is open, then the mercury level is 10 cm below the…

A: Given data: Pair=200 kPax=10 cm Need to determine the reading for H.

Q: while assigning properties to the boiler it is not necessary to enter value in number of increment…

A: In essence, a boiler or steam generator is a space from which water may be forced and steam can…

Q: The flanged steel cantilever beam with riveted bracket is subjected to the couple and two forces…

Q: Consider the tank filled with water. The tank has a conical portion ABC removed from it as shown in…

Q: work on the dimensional analysis of the listed derived properties converting from MLT to FLT…

A: We have to convert the MLT dimensional system to FLT dimensional system.

Q: There are 300 cubic meter/min of atmospheric air initially at 25 C wet bulb temperature and 60 % RH…

A: Given: Flow rate of the atmospheric air→Qa=300 m3/min=5 m3/s Wet bulb temperature of the atmospheric…

Q: 1. Determine the magnitude and direction with respect to the +x axis on the reaction at A and at C.…

Q: The stagnation density after the shock (px= 55 kPa, Tx= 335 K, vx= 525 ms- ‚1) 0.26 kgm-3 O 0.77…

Q: Water at 60°F flows from a lake through 500 ft of 4- in ID cast iron pipe at a water turbine 250 ft…

Q: 0.4 m D d = 0.15 m Part A If the 5.2-kg block is suspended from the pulley B and the sag of the cord…

Q: Determine the resultant moment of the two forces about the a axis Express the result as a Cartesian…

A: Force F1 and F2 can be expressed in cartesian form as below,…

Q: Problem Solving: Solve the problem with complete solution in landscape orientation by placing it in…

A: To find external reaction at D and stress in member BC,DE

Q: Show that F=yz³t+ (xz³-1)/+ 3xyz'k which applied on a unit mass body is conservative; then…

A: Given,

Q: the initial temperature (T1) in ( o C) :is

A: GivenAt initial state x=0.7P1=200kPaV=100ltr=0.1m3final state P2=200kPaT2=200oC

Q: Which is better for humidifying air, adding steam or water? Justify?

A: Humidification of air :

Q: Two solid cylindrical rods (1) and (2) are joined together at flange B and loaded, as shown. If the…

Q: Compute the higher, lower, and equilibrium heats of combustion for methanol CH3OH (4).The…

A: given : CH3OH

Q: Q1 - The plate is subjected to the two forces at A and B as shown in Fig. 1. 1- Determine…

A: Given

Q: 26-A 40-kg block is placed on the uniform 10-kg beam, that is supported by the cable, which is…

A: Given:Mass of the block, mb=40 kgMass of the cantilever beam, mc=10 kgCoefficient of static…

Q: If the inner diameter of the penstock that deliver water form the dam to the hydroelectricpower…

Q: Calculate the longitudinal stress at the anchor location for a silicon cantilever with the length L…

A: Given: Length of cantilever→L=150 μm=0.15×10-3 m Height of the cantilever→b=4 μm=0.004×10-3 m Tip…

Q: 2. Pounds of fuol per kw-hr

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The block in the figure has a weight of 400 lb and an applied force of 600 lb to the right. There is…

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 horizontal pipe having a surface temperature of 67 °C and diameter of 20 cm is buried at a depth of 1 m in the earth at a location where k = 1.8 W/m-°C. The earth surface temperature is 15 °C. Calculate the shape factor if the pipe length is 10 m.

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 2 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 long steel rod is placed horizontally between two supports, one at each end. The rod bends a little in the center. Which property of this rod can be used to estimate how much the rod should bend at the center? 1. Its Shear Modulus 2. Its Young's Modulus 3. All of these Moduli can be used to compute how much it bends. 4. Its Bulk Modulus.
Using the information in Problem 1.22, estimate the ambient air temperature that could cause frostbite on a calm day on the ski slopes. 1.22 In order to prevent frostbite to skiers on chair lifts, the weather report at most ski areas gives both an air temperature and the wind-chill temperature. The air temperature is measured with a thermometer that is not affected by the wind. However, the rate of heat loss from the skier increases with wind velocity, and the wind-chill temperature is the temperature that would result in the same rate of heat loss in still air as occurs at the measured air temperature with the existing wind. Suppose that the inner temperature of a 3-mm-thick layer of skin with a thermal conductivity of 0.35W/mKis35C and the air temperature is 20C. Under calm ambient conditions the heat transfer coefficient at the outer skin surface is about 20W/m2K (see Table 1.4), but in a 40-mph wind it increases to 75W/m2K. If frostbite occurs when the skin temperature drops to about 10C, do you advise the skier to wear a face mask? What is the skin temperature drop due to the wind?
A vertical jet thru a nozzle supports a 150.90N weight. The velocity and diameter of the jet are 17.90m/s and 3.90 cm respectively. Find the distance of load from the nozzle in meters. Group of answer choices 13.79 31.79 17.93 71.39I need an answer for this asap :(
3. The heat flux (from outside to inside) across an insulating wall with thermal conductivity, K= 0.04 W/m-K and thickness 0.16m is 10 W/m2. The temperature of the inside wall is - 5°C. The outside wall temperature is _____. (avoid rounding off during intermediate steps, but only on final answers to four decimal places.)
An electronics device generates 37.5 W of heat energy during normal operation. The heat is dissipated from the top surface of the device to ambient air at 21°C. If the top surface area is 0.166 m2 and the convection heat transfer coefficient is 7.297 W/m2· K, what will be the surface temperature (in °C) of the device [round your final answer to one decimal place]?
The thermal conductivity of a fluid is 0.09 BTU/ft-h-F having a kinematic viscosity of 0.0215 ft2/h. If the density and specific heat at constant pressure are 53 lbm/ft3 and 0.43 BTU/lb-F, respectively, determine the Prandtl number. Correct Answer: 5.44 ± 0.1
An open circular cylinder of 20 cm diameter and 100 cm long contain water up to a height lf 80 cm. It is rotated about its vertical axis. Find the speed of rotation in rpm when no water spills. (Choices : a) 422.98 b) 345.89 c) 198.65 d) 267.51)
You are tasked with designing a simple wooded step ladder for use in a home. It's a three rung/level ladder with 70cm being the height of the highest rung/platform. The middle rung is 46cm off the ground and the lowest rung is 23cm off the ground. You are required to submit an anthropometric analysis of this step-ladder that would be used to determine the dimensions like step width, thickness etc. Give brief explanations for each selection of your anthropometric values
An uninsulated steam pipe passes through a room in which the air and walls are at 25°C. The outside diameter of the pipe is 88 mm, and its surface temperature and emissivity are 200°C and 0.80 respectively. If the coefficient associated with free convection heat transfer from the surface to the air is 15W/m2-k, what is the rate of heat loss for a 5 meter pipe? Round your answer to 2 decimal places.
21 - A vertical cylindrical vessel with a diameter of 15 cm and a height of 40 cm is partially filled with 25 cm high water. The cylinder is rotated at a constant speed of 20 rad/s. What is the maximum height difference between the edge and the center of the free surface? a) 11.5cm B) 15cm NS) 5.4cm D) 9.5cm TO) 7.2cm 22 - The water level in a tank is 9.4 m above the ground. At the bottom of the tank, the sprinkler connected to the pipe end faces upwards. The effective pressure at the water surface inside the tank is 300 kPa. Since the system is at sea level, how high does the water coming out of the fountain rise? (ρ=1000 kg/m³) a) 48 meters B) 25m NS) 30m D) 40m TO) 20m
A metal conduit will be used as a pathway for wiring through a concrete block. The conduit is a 4-foot-long rod with an outer diameter of 2.4 inches and an inner diameter of 2.2 inches. What is the volume of metal in the conduit in cubic centimeters? A copper pipe, used for plumbing from the water main to a house, is 4 meters long and has a circular cross-section 2.8 cm in diameter. There is a 2 cm diameter hole in the center of the cross-section for the entire length of the rod. What is the volume of copper in the rod in cubic inches? The density of copper is 559 lbm/ft3 . What is the mass of the copper pipe in pounds?
If 20% of pulverized limestone with a work index of 12.1 kW-hr/ton is retained by a 150 mesh screen from an original uniform size of 35 mesh, what is the energy required in kW to process 1ton/hour? A. 6.25B. 2.65C. 8.3D. 3.8