The tungsten filament described in Problem 12.29 dissipates 75 W in an evacuated spherical light bulb of
Question:
The tungsten filament described in Problem 12.29 dissipates 75 W in an evacuated spherical light bulb of 75-mm diameter. The bulb is in quiescent air and large surroundings at a temperature of 25°C. The reflectivity of the glass is negligible, while the spectral absorptivity is characterized by the following distribution. What is the steady-state temperature of the glass bulb for a tungsten filament operating at 3000 K?
Transcribed Image Text:
-az = 1 -a =1 2 = 0.1 0.1 0 0.4 1. aum)
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 87% (16 reviews)
KNOWN Power dissipation temperature and distribution of spectral emissivity for a tungsten filament ...View the full answer
Answered By
Ashington Waweru
I am a lecturer, research writer and also a qualified financial analyst and accountant. I am qualified and articulate in many disciplines including English, Accounting, Finance, Quantitative spreadsheet analysis, Economics, and Statistics. I am an expert with sixteen years of experience in online industry-related work. I have a master's in business administration and a bachelor’s degree in education, accounting, and economics options.
I am a writer and proofreading expert with sixteen years of experience in online writing, proofreading, and text editing. I have vast knowledge and experience in writing techniques and styles such as APA, ASA, MLA, Chicago, Turabian, IEEE, and many others.
I am also an online blogger and research writer with sixteen years of writing and proofreading articles and reports. I have written many scripts and articles for blogs, and I also specialize in search engine
I have sixteen years of experience in Excel data entry, Excel data analysis, R-studio quantitative analysis, SPSS quantitative analysis, research writing, and proofreading articles and reports. I will deliver the highest quality online and offline Excel, R, SPSS, and other spreadsheet solutions within your operational deadlines. I have also compiled many original Excel quantitative and text spreadsheets which solve client’s problems in my research writing career.
I have extensive enterprise resource planning accounting, financial modeling, financial reporting, and company analysis: customer relationship management, enterprise resource planning, financial accounting projects, and corporate finance.
I am articulate in psychology, engineering, nursing, counseling, project management, accounting, finance, quantitative spreadsheet analysis, statistical and economic analysis, among many other industry fields and academic disciplines. I work to solve problems and provide accurate and credible solutions and research reports in all industries in the global economy.
I have taught and conducted masters and Ph.D. thesis research for specialists in Quantitative finance, Financial Accounting, Actuarial science, Macroeconomics, Microeconomics, Risk Management, Managerial Economics, Engineering Economics, Financial economics, Taxation and many other disciplines including water engineering, psychology, e-commerce, mechanical engineering, leadership and many others.
I have developed many courses on online websites like Teachable and Thinkific. I also developed an accounting reporting automation software project for Utafiti sacco located at ILRI Uthiru Kenya when I was working there in year 2001.
I am a mature, self-motivated worker who delivers high-quality, on-time reports which solve client’s problems accurately.
I have written many academic and professional industry research papers and tutored many clients from college to university undergraduate, master's and Ph.D. students, and corporate professionals. I anticipate your hiring me.
I know I will deliver the highest quality work you will find anywhere to award me your project work. Please note that I am looking for a long-term work relationship with you. I look forward to you delivering the best service to you.
3.00+
2+ 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
-
An incandescent light bulb has a tungsten filament that is heated to a temperature of 3.00 103 K when an electric current passes through it. If the surface area of the filament is approximately 1.00...
-
The tungsten filament of a certain 100-W light bulb radiates 2.00 W of light. (The other 98 W is carried away by convection and conduction.) The filament has a surface area of 0.250 mm2 and an...
-
A light bulb filament is made of tungsten. At room temperature of 20.0Cthe filament has a resistance of 10.0 . (a) What is the power dissipated in the light bulb immediately after it is connected to...
-
Assume that a trader in HSBS has bought EUR 10,000,000 on Feb 03, 2020. Estimate one day VAR with a 95% confidence interval for the FX position with the Historical Simulation approach. Compose some...
-
Name four goals that business writers have when they prepare oral presentations and business messages?
-
The weight and systolic blood pressure of 26 randomly selected males in the age group 25 to 30 are shown in the Table E11-8. Assume that weight and blood pressure are jointly normally distributed....
-
Name activities in software development covered by various methodologies. Can you explain why more than one methodology is needed in developing a piece of software?
-
A string with both ends held fixed is vibrating in its third harmonic. The waves have a speed of 192 m/s and a frequency of 240 Hz. The amplitude of the standing wave at an antinode is 0.400 cm. (a)...
-
Provide the solution below in A4 sheet. and i will give you upvote Given Data :- Ap = 1777 mm 2. As 2 = 500 mm A's = 314 mm 2 fpk = 1700 MPa fp 0,1k 1530 MPa fy = 400 MPa Pre tensioned 900x500 mm...
-
It was announced today that Matrix Inc. will acquire Cajun Systems. Cajun Systems has assets with a tax basis of $ 5 billion and has $ 1 billion of liabilities. Prior to being acquired, Cajun Systems...
-
Consider an opaque, diffuse surface for which the spectral absorptivity and irradiation are as fol1ows: What is the total absorptivity of the surface for the prescribed irradiation? If the surface is...
-
The spectral emissivity of an opaque, diffuse surface is as shown. (a) If the surface is maintained at 1000 K, what is the total, hemispherical emissivity? (b) What is the total, hemispherical...
-
A beam with a T-section is supported and loaded as shown in the figure. The cross-section has width b = 21/2 in, height h = 3 in., and thickness t = 3/8 in. (a) Determine the maximum tensile and...
-
In the central bank's first public speech since increasing the cash rate 0.25 of a percentage point to 4.35 percent last week, the RBA's acting chief economist. Marion Kohler, said that the next...
-
Which meeting between the Ground and Aviation staffs during the Air Assault Planning determines which forces are in the first lift and each serial of the first lift, and which specific landing zone...
-
How do facilities ensure their cost management practices align with regulatory requirements?
-
Write a complete job description and create compensable factors with job evaluation points for Benefits Manager.
-
Reflect on the ways in which media enriches your life. Specifically, identify and explain 2 specific and distinct ways that media plays a positive role in your life. Each response is worth [3pts].
-
Newspaper columnist Ann Landers once asked her readers, If you had it to do over again, would you have children? [26]. Ten thousand people responded, of which 70 percent said no. a. Explain why there...
-
In Problems 1522, find the principal needed now to get each amount; that is, find the present value. To get $750 after 2 years at 2.5% compounded quarterly.
-
Write the Lewis structure for XeF 2 .
-
Report to the class on the achievements of Henri de Pitot?
-
Report to the class on the achievements of Antoine Chzy?
-
Report to the class on the achievements of Gotthilf Heinrich Ludwig Hagen?
-
Write the following system as a vector equation involving a linear combination of vectors. 5x1 2x2 x3 = 2 4x1 + 3x3 = 1
-
Q6. Determine whether the following improper integrals converge or diverge. [3,3,3] (e) 1 x ln(x) -dx. 1
-
Find the amount in the account for the given principal, interest rate, time, and compounding period. P=$1,100,r=2.1%,t=7 years; compounded continuously.
Study smarter with the SolutionInn App