An electrical heater 100 mm long and 5 mm in diameter is inserted into a hole drilled
Question:
An electrical heater 100 mm long and 5 mm in diameter is inserted into a hole drilled normal to the surface of a large block of material having a thermal conductivity of 5 W/m ∙ K. Estimate the temperature reached by the heater when dissipating 50 W with the surface of the block at a temperature of 25°C.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 88% (9 reviews)
KNOWN Electrical heater of cylindrical shape inserted into a hole drilled normal to the surface of a ...View the full answer
Answered By
Muhammad Umair
I have done job as Embedded System Engineer for just four months but after it i have decided to open my own lab and to work on projects that i can launch my own product in market. I work on different softwares like Proteus, Mikroc to program Embedded Systems. My basic work is on Embedded Systems. I have skills in Autocad, Proteus, C++, C programming and i love to share these skills to other to enhance my knowledge too.
3.50+
1+ Reviews
10+ Question Solved
Related Book For
Fundamentals of Heat and Mass Transfer
ISBN: 978-0471457282
6th Edition
Authors: Incropera, Dewitt, Bergman, Lavine
Question Posted:
Students also viewed these Mechanical Engineering questions
-
A brass rod 100 mm long and 5 mm in diameter extends horizontally from a casting at 200e. The rod is in an air environment with T = 20C and h = 30 W/m2 K. What is the temperature of the rod 25, 50,...
-
1. A brass rod 100 mm long and 5 mm in diameter extends horizontally from a casting at 200C. The rod is in an air environment with T = 20 C and h = 30W/m.K. a) What is the temperature of the rod 25,...
-
A particle is dropped into a hole drilled straight through the center of Earth. Neglecting rotational effects show that the particles motion is simple harmonic if you assume Earth has uniform...
-
Sketch a graph to illustrate your idea of each of the following relationships. Be sure to label each axis appropriately. For each relationship, explain under what circumstances, if any, the curve...
-
1. What went wrong? How can you explain how the technology actually led to more rather than fewer mistakes? 2. What theories of change implementation would have helped the administrators at the...
-
In the second row of the periodic table, Be, N, and Ne all have endothermic (unfavorable) electron affinities, whereas the other second- row elements have exothermic (favorable) electron affinities....
-
Write a short note on : Types of belt drive.11
-
The Smelting Department of Polzin Company has the following production and cost data for September. Production: Beginning work in process 2,000 units that are 100% complete as to materials and 20%...
-
How can chemical engineering principles be applied to optimize the production of biofuels from lignocellulosic biomass? Consider the various pretreatment methods, enzymatic hydrolysis, and...
-
1. Use the case information, and the information below, to compute the MRP tables for all items. Are there any problems? Week 1 scheduled receipts:* P0110 650 units POX 1050 units POY 1125 units PIXI...
-
A long power transmission cable is buried at a depth (ground to cable centerline distance) of 2 m. The cable is encased in a thin-walled pipe of 0.1-m diameter, and to render the cable...
-
Two parallel pipelines spaced 0.5 m apart are buried in soil having a thermal conductivity of 0.5 W/m K. The pipes have outer diameters of 100 and 75 mm with surface temperatures of 175C and 5C,...
-
In previous problem 20.4, the design specification on the part is that the critical cross-sectional dimension = 28.0 ( 2.0 mm. (a) What proportion of parts fall outside the tolerance limits? (b) If...
-
As you did for the previous exercise, plan for one person in another room to present to two or three team members online. This time, something goes wrong. The audience can invent whatever mishap they...
-
Working in groups of three, practice answering a behavioral interview question from Figure 3 and others you wrote for Exercise 2. Take turns, with one of you asking the question, another responding,...
-
Share the job posting you used for the previous exercise with two classmates. Use the questions in Figure 24 to provide feedback to each other. Discuss your feedback in trios. When you do, explain...
-
For your second-round job interview, a prospective employer has asked you to deliver a presentation on any topic. To make the best impressionand to leave something for the audience to remember...
-
After an interview, answer the questions in Figure 8. Write your responses and submit them to your instructor. At the end, summarize your conclusions by answering one more question: under what, if...
-
Golden plc issues 4 million, 5-year, 10% bonds at 102, with interest payable annually January 1. The straight-line method is used to amortize bond premium. a. Prepare the journal entry to record the...
-
Quality Chicken grows and processes chickens. Each chicken is disassembled into five main parts. Information pertaining to production in July 2012 is: Joint cost of production in July 2012 was $50. A...
-
What is the expected return of the following portfolio of investments, r p : Investment DEF JKL TUV 4% 24 14 Amount Invested $30,000 25,000 45,000
-
An electric room heater has been designed in the shape of a vertical cylinder 2 m tall and 30 cm in diameter. For safety, the heater surface cannot exceed 35?C. If the room air is 20?C, find the...
-
Consider a design for a nuclear reactor using natural-convection heating of liquid bismuth. The reactor is to be constructed of parallel vertical plates 6 ft tall and 4 ft wide, in which heat is...
-
A mercury bath at 60?C is to be heated by immersing cylindrical electric heating rods, each 20 cm tall and 2 cm in diameter. Calculate the maximum electric power rating of a typical rod if its...
-
How can a financial risk can be managed? What is financial risk? what does it include and exclude? What do we study in the financial risk manager?
-
A manufactured product has the following Information for June. Direct materials Direct labor Overhead Units manufactured Standard Quantity and Cost 6 pounds @ $8 per pound 3 DLH @ $17 per DLH 3 DLH @...
-
BatCo makes baseball bats. Each bat requires 2.00 pounds of wood at $16 per pound and 0.25 direct labor hour at $20 per hour. Overhead is assigned at the rate of $40 per direct labor hour. Assume the...
Study smarter with the SolutionInn App