You received the following letter as a heat transfer expert. You need to answer the letter...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
You received the following letter as a heat transfer expert. You need to answer the letter taking into consideration that your consulting fees depend on your answer. We have been testing long, cylindrical samples of stainless steel in our laboratory under constant heat flux conditions at the outer radius. We are attempting to determine the length of time it takes the surface to reach its melting temperature of 1480C. Two tests on 10 cm diameter cylinders have given the following results Test 1 2 q" W/m = 94,638 157,730 Time (sec) 1580 882 The initial temperature in each test was 27C. The laboratory assistant feels that the data should be fitted with the following hyperbola: q't 1.5x108 where q" is in W/m, and t in seconds. I'm hesitant to rely on the hyperbola even though it closely fits the data and has the right qualitative behavior. I would appreciate learning the answers to the following questions: a. Is the hyperbola correct in predicting no influence in diameter b. Is the hyperbola correct in predicting that the thermal properties of the material have no effect C. Does heat theory support the hyperbola conclusion d. If the hyperbola is not valid, please provide a better relation You received the following letter as a heat transfer expert. You need to answer the letter taking into consideration that your consulting fees depend on your answer. We have been testing long, cylindrical samples of stainless steel in our laboratory under constant heat flux conditions at the outer radius. We are attempting to determine the length of time it takes the surface to reach its melting temperature of 1480C. Two tests on 10 cm diameter cylinders have given the following results Test 1 2 q" W/m = 94,638 157,730 Time (sec) 1580 882 The initial temperature in each test was 27C. The laboratory assistant feels that the data should be fitted with the following hyperbola: q't 1.5x108 where q" is in W/m, and t in seconds. I'm hesitant to rely on the hyperbola even though it closely fits the data and has the right qualitative behavior. I would appreciate learning the answers to the following questions: a. Is the hyperbola correct in predicting no influence in diameter b. Is the hyperbola correct in predicting that the thermal properties of the material have no effect C. Does heat theory support the hyperbola conclusion d. If the hyperbola is not valid, please provide a better relation
Expert Answer:
Related Book For
Posted Date:
Students also viewed these mechanical engineering questions
-
Outsourcing to Indiaespecially in information technology (IT)has been going on for several decades. This case is on the final frontier of outsourcing to Indiacommercial surrogacy. Surrogacy...
-
Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...
-
State whether the following statement are True or False: Assets = Owners Equity is also a possible scenario.
-
Suppose that C, D, and E are independent events such that P(C) = 7/8, P(D) = 5/7, and P(E) = 2/3. Find P(C & D & E).
-
Gordon's Steel Parts produces parts for the automobile industry. The company has monthly fixed expenses of $640,000 and a contribution margin of 80% of revenues. Gordon feels like he's in a giant...
-
The deflection of the cantilever beam of Fig. P7.84 is governed by the differential equation. \[ E I \frac{d^{2} y}{d x^{2}}=P(x-\ell) \] where \(E\) is the modulus of elasticity and \(I\) is the...
-
At the time of her death on September 4, 2015, Alicia held the following assets. Alicia was also the life tenant of a trust (fair market value of $2 million) created by her late husband Bert. (The...
-
After all of the account balances have been extended to the Balance Sheet columns of the work sheet, the totals of the Debit and Credit columns are $28,246 and $21,306, respectively. What is the...
-
Landover Corporation is looking for a larger office building to house its expanding operations. It is considering two alternatives. The first is a newly constructed building at a cost of $6 million....
-
DatabaseBackup and Recovery Use ofSQL Server to do the following: Perform a proper backup and recovery using SSMS. Perform a proper backup and recovery using T-SQL. Set up an automated backup...
-
What penal regulations serve to check unlawful littering?
-
The following MINITAB output displays the cumulative distribution function curves of three normal distributions. Their mean and variance, respectively, are (0, .5), (0, 1), and (0, 2). Please compare...
-
UOP is a manufacturing firm that has depreciation as its only overhead expense (i.e., there are no indirect labor, indirect materials, property taxes, factory insurance, etc.). UOP uses a flexible...
-
Suppose that X is distributed as normal with a mean of 5 and a standard deviation of 2. Compute the standard normal values of X, given the following values of X: (a) 3 (b) 2 (c) 9 (d) 11 (e) 6 (f) 10
-
Determine the following probabilities. Assume that X follows a normal distribution: (a) P(80 X 951 =92, o = 10) (b) P(X> 150 = 99, o = 25)
-
import java.util.Scanner; /* * This program reads double values from a list (actually a string) using a scanner. It calculates the average of these values as * well as the minimum value and the...
-
At the beginning of the year, Lam Ltd. had total assets of $800,000 and total liabilities of $500,000. Use this information to answer each of the following independent questions. (a) If Lam's total...
-
Everything is the same as in Critical Discussion Question 3, except the counterfeit products involved are the more affordable generic drugs to combat HIV/AIDS. Providing these drugs at a lower cost...
-
As the CEO of a fast-moving firm (such as Zoom), use the strategy tripod to analyze what the leading challenges for your firms internationalization will be.
-
Between the two opposing views of stakeholder capitalism and shareholder capitalism, which view do you support? Why?
-
A rationale for the use of the price-to-sales (P/S) approach is: a. Sales are more volatile than earnings. b. P/S ratios assess cost structures accurately. c. Revenues are less subject to accounting...
-
Consider a company that earned \($4.00\) per share last year and paid a dividend of \($1.00.\) The firm has maintained a consistent payout ratio over the years and analysts expect this to continue....
-
A cyclical company tends to a. have earnings that track the overall economy. b. have a high price-to-earnings ratio. c. have less volatile earnings than the overall market.
Study smarter with the SolutionInn App