Question: A single fin increases heat transfer from a flat surface by 194 W. The surface area of the fin is 0.06 m and the

A single fin increases heat transfer from a flat surface by 194 W. The surface area of the fin is 0.06 m and the temperature at the base of the fin is 675 K. The surrounding fluid is at 305 K and the heat transfer coefficient between the surface and the fluid is 12 W/mK. What is the efficiency of the fin? Give your answer as a percentage to the nearest integer (e.g. 12.6 % would be given as 13).

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mechanical Engineering Questions!

Show that the matrix A in Problem 2.58 is diagonally dominant. Data from Problem 2.58 Perform the first two iterations of Jacobis method for the system of equations using an initial guess x = 0. 6 -2...

what information is needed to complete a global cash flow analysis

Q3 You need money to buy a new car. You can pay $4000 in one year, and then $6000 each year for the next three years. If the bank wants 10% interest rate how much you can borrow now to buy the car.

a. Example 13-1: Batch Reactor with an Exothermic Reaction Wolfram 1. Adiabatic Case: Use Wolfram to see whether you can find a trajectory that is ready to ignite and whose trajectory looks like a...

Scenario: A corner location of the Freshco plaza across from the college is available. Would you recommend that Dollarama open a store in this location? Please write report.

An air-to-water compact heat exchanger is to be designed to serve as an intercooler for a 5,000 hp gas turbine plant. The exchanger is to meet the following heat transfer and pressure drop...

1. (30 pts.) Liquid oxygen is stored in a spherical stainless stell (k = 18W/m K) tank at 65 K. The tank has 2.5-m internal diameter with a thickness of 30 mm. Tank is insulated with a 120 mm thick...

solve the following problem Grap Approach min 7: 50X, +100Xz st: +282 228 2, + 12kz 224 220

To enhance heat transfer from a silicon chip of width W = 4 mm on a side, a copper pin fin is brazed to the surface of the chip. The pin length and diameter are L = 12 mm and D = 2 mm, respectively,...

A bond has a face value of $1,000 and a coupon rate of 5%. It will mature in 10 years and its yield to maturity is 6%. Calculate the price of the bond today.

A certain system of particles possesses a total momentum p and an angular momentum M relative to a point O. Find its angular momentum M' relative to a point O' whose position with respect to the...

gene showing codominance: a) has alleles that are recessive to each other b) has both alleles independently expressed in the heterozygote c) has one allele dominant to the other d) has alleles...

Dr. orders 200,000 Unit IM. The dose on hand is 5,000,000 Unit/5mL. How many mL would you give the patient

The half-life of cesium-137 is 30 years. Suppose we have a 100-mg sample. (a) Find the mass that remains after years. (b) How much of the sample remains after 100 years? (c) After how long will only...

Sun Microsystems develops, manufactures, and sells computers for network systems. Exhibit 5.19 presents selected financial data for Sun Microsystems for each of the five years ending June 30, 2005,...

A trust has net accounting income of $24,000 and incurs a trustees fee of $1,000 in its principal account. What is its distribution deduction under the following situations: a. It distributes...

A tax preparation firm is interested in comparing the quality of work at two of its regional offices. The observed frequencies showing the number of sampled returns with errors and the number of...

Explain when firms should discount projects using the cost of equity. When should they use the WACC instead? When should they use neither?

Which of the following is true concerning handwashing? Food workers do not have to wash their hands Soap is not required Running water is required All of the above

Define Chemical Process Safety and list four reasons we need to study it and why it is particularly relevant to CRE (http://umich.edu/~safeche/index.html).

The rule of thumb that the rate of reaction doubles for a 10C increase in temperature occurs only at a specific temperature for a given activation energy. Develop a relationship between the...

Are there steps in the Safety Analysis of the Incident that should be removed or added? If so, what are they?

The following data have been selected for two variables, y and x. Construct a scatter plot for these two variables and indicate what type of relationship, if any, appears to be present. y x 100.23.5...

Amazon.com celebrated its 13th anniversary in July 2007. Its growth can be seen by examining its increasing sales volume (in $billions) as reported by Hoovers Inc. a. Construct a line plot for...

The following data represent 11 observations of two quantitative variables: x = contact hours with client, y = profit generated from client. a. Construct a scatter plot of the data. Indicate whether...