What is the heat loss per unit length of pipe

Assignment Help Mechanical Engineering
Reference no: EM13946746

An uninsulated steam pipe is used to transport high-temperature steam from one building to another. The pipe is of 0.5-m diameter, has a surface temperature of 150°C, and is exposed to ambient air at -10°C. The air moves in cross flow over the pipe with a velocity of 5 m/s.

(a) What is the heat loss per unit length of pipe?

(b) Consider the effect of insulating the pipe with a rigid urethane foam (= 0.026 W/m · K). Evaluate and plot the heat loss as a function of the thickness of the insulation layer for 0 50 mm.

Reference no: EM13946746

Questions Cloud

Generate a plot of the time to reach : How long will it take for the surface of the rod to reach 175°C, the temperature above which the special coating will cure? Generate a plot of the time to reach 175°C as a function of air velocity for 5 V 50 m/s.
Prepare a summary of given article highlighting key points : Prepare a summary of the article highlighting key points relating to technology and global business. Your summary should be approximately 250-300 words.
Duct to measure the air temperature : A thermocouple is inserted into a hot air duct to measure the air temperature. The thermocouple (T1) is soldered to the  tip  of  a  steel  thermocouple  well  of  length L = 0.15 m and inner and outer diameters ofDi = 5 mm
This video discusses the sexual assault : In order to complete the Final Paper, watch one of the following videos: Welcome to homicide This video discusses a homicide in Richmond, VA. He wouldn't turn me loose: The sexual assault case of 96-year-old Miss Mary This video discusses the sexu..
What is the heat loss per unit length of pipe : What is the heat loss per unit length of pipe? Consider the effect of insulating the pipe with a rigid urethane foam (k = 0.026 W/m · K). Evaluate and plot the heat loss as a function of the thickness 8 of the insulation layer for 0 8 50 mm.
Is this a normal distribution : Create a frequency distribution table for your data. You can use Excel or Word. Calculate the standard deviation. Calculate the variance.
Key communication concepts you have gained : Determine the three (3) key communication concepts you have gained from this class. Explain the strengths and weaknesses of each. Propose how do you expect to use these concepts in your organization.
Calculate voltage v : Calculate voltage V0 (by hand). Show the work below.
High-tension line has an electrical resistance : A 25-mm-diameter, high-tension line has an electrical resistance of 10-4  !1/m and is transmitting a current of 1000 A. If ambient air at 10°C and 5 m/s is in cross flow over the line, what is its surface temperature?

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  The water is heated to 300 degrees c find the final

a pistoncylinder setup contains 0.1 kg of saturated liquid and vapor water at 100 kpa with quality 25. the mass of the

  Determine the flight angle

The die characteristic is Q_x = 0.0015p where p is the head pressure in psi. Determine the flight angle that maximizes the flow rate Q_x and graph it.

  Magnitude of the particles acceleration four seconds later

A particle travels around a circular path having a radius of 80m. It is initially traveling with a speed of 10 m / s and its speed then increases at a rate of v = (0.05v) m /s2. Determine the magnitude of the particle's acceleration four seconds late..

  The f is statistically significant at the specified alpha

14. For each of the following F values, indicate whether the F is statistically significant at the specified alpha level:a. F = 4.80, df = 4, 40 α = 0.01b. F = 5.02, df = 3, 60, α = 0.001

  A rectangular cross section alumina bar

A rectangular cross section alumina bar, E=415 GPas , v=0.23  of initial lengths 100mm in the x direction, 10mm in the y direction and 20mm in the z direction, is loaded in compression by a load of 50 kN applied in the x-direction. What are the strai..

  It may be assumed that the expansion is reversible and

one kilogram of water at 300degc expands against a piston in a cylinder until it reaches ambient pressure 100 kpa at

  Find the elevation of the pump relative to the reservoir

A fire truck draws water from an open constant-level reservoir through a hose of 0.2 ft2 cross section. The water is discharged from the pump through another 0.2 ft2 hose to a surge tank pressurized to 120 psig with air at the top. The pump adds 970 ..

  The environmental conditions in a room are to be regulated

the environmental conditions in a room are to be regulated so that the dry bulb temperature will be greater than or

  Concerned about carbon content in steel

We are concerned about carbon content in steel. It has a direct effect on the yield and tensile strength of what is formed in what is called a hot rolled condition directly from the steel production facility. 1010 steel has yield strength of 180MPa, ..

  Condenser pressure is 01 bar assuming that the isentropic

a steam power plant utilizes the rankine cycle. steam enters the turbine at 50 bar and 500oc respectively. condenser

  Determine the air outlet temperature

(a) Find the rate of heat transfer (kW) to the water. (b) Draw a schematic of the system. (c) Determine the air outlet temperature (°C)

  An engineer measured the pressure in main water line near

before installing the water pipes in a new house an engineer measured the pressure in main water line near the house to

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd