Show the thermal circuit for wall and label all temperatures

Assignment Help Other Engineering
Reference no: EM131019098

The wall of a drying oven is constructed by sandwiching an insulation material of thermal conductivity k = 0.05 W/m. K between thin metal sheets. The oven air is at T_∞,i = 300° C, and the corresponding convection coefficient is hi =30 .The inner wall surface absorbs a radiant flux of = 100 W/m2 from hotter objects within the oven. The room air is at T∞o = 25°C, and the overall coefficient for convection and radiation from the outer surface is ho = 10 W/m2.

291_surface.png

(a) Show the thermal circuit for the wall and label all temperatures, heat rates, and thermal resistances.

(b) What insulation thickness L is required to maintain the outer wall surface at a safe-to-touch temperature of To = 40°C?

Reference no: EM131019098

Questions Cloud

Explain and provide an example of meta-emotion : Through personal examples, briefly explain how emotions are physiological, cognitive, social, and behavioral experiences.
What volumetric flow rate is needed to produce : The propulsive force (thrust) developed to propel the jet ski shown in Fig. is a result of water pumped through the vehicle and exiting as a high-speed water jet. For the conditions shown in the figure, what volumetric flow rate is needed to produ..
Calculate the cost to the bakery : Calculate the cost to the bakery if it takes delivery? Instead of taking the delivery the manager can take positions in the futures and spot market. For example, take 10 long May wheat futures contract at the prevailing futures price, close the fu..
What is the firms total fixed cost : What is the firms total fixed cost - complete the missing data in the table. What is the firm's minimum-cost output?
Show the thermal circuit for wall and label all temperatures : Show the thermal circuit for the wall and label all temperatures, heat rates, and thermal resistances. What insulation thickness L is required to maintain the outer wall surface at a safe-to-touch temperature of To = 40°C?
How many firms will be in industry in long-run equilibrium : Assuming the beer industry is perfectly competitive, what output would be produced by the firm in long-run equilibrium? What would be the long-run equilibrium price? How many firms will be in the industry in long-run equilibrium
Billy''s bagels bakes fresh bagels : Billy's Bagels bakes fresh bagels each morning. The daily demand for bagels follows a normal distribution with mean 15 and standard deviation 5. The bagels cost Billy's 8 cents to make and they are sold for 35 cents each. Bagels unsold at the end of ..
Why is the study of the history of rock relevant to you : As we have studied the development of rock and roll, we have not only examined musical styles and trends, but also how they correspond with developments in social, political, and fashion areas as well.
Calculate the net present value of the project : Calculate the net present value of the project.

Reviews

Write a Review

Other Engineering Questions & Answers

  What is the back pressure pr

The supersonic nozzle of Fig is over expanded (case G of Fig) with Ae/At = 3.0 and a stagnation pressure of 350 kPa. If the jet edge makes a 4° angle with the nozzle centerline, what is the back pressure pr in kPa?

  Local acceleration of gravity

A person whose mass is 150 lb weighs 144.4 lbf. Determine (a) The local acceleration of gravity, in ft/s2, and

  An office of a state license bureau has two types of

an office of a state license bureau has two types of arrivals. individuals interested in purchasing new plates are

  American society of mechincal engineers

Write a short paper describingyour dream job, regardless of pay or geographical location ?

  Analysis of the vehicle component

Analysis of the vehicle component: role, work conditions, requirements for the role and

  Design a building matching the code

Assessment based on design a building matching the code that they mension

  Describe a tunnel-boring machine in detail

Describe a tunnel-boring machine in detail and cite examples of their use. Particular emphasis should be placed on the cycle of operations for such a machine.

  Explore the breadth of the ict field

Explore the breadth of the ICT field, examining your own knowledge, skills, interests and expertise gained from the workplace and/or study in other subjects in the course.

  Computer and software purchases are capital expenditures

Computer and software purchases are capital expenditures, even though the expected useful lifetime of computer hardware and software has decreased in recent years because of rapid technological change.

  Is the estimate of the coefficient on the gasoline dummy

Is the estimate of the coefficient on the Gasoline dummy statistically significant?

  Rank the functions by order of growth

Rank the following functions by order of growth. If two or more are of the same order (f(n) and g(n) are in the same class if and only if f(n) = T(g(n))), indicate which.

  Describe the purpose of streams

Describe the purpose of streams

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