Fins are frequently installed on tubes by a press fit process Consider a circumferential aluminum fin having a thickness of 1 0 mm to be installed on a 2 5 cm diameter aluminum tube The fin length is 1 25 cm, and the contact conductance may be taken from Table 2 2 for a 100 in ground surface The convection environment is at 20C, and h 125 W m2 C Calculate the heat transfer for each fin for a tube wall temperature of 200C What percentage reduction in heat transfer is caused by the contact conductance

Question: Fins are frequently installed on tubes by a press-fit process. Consider a circumferential aluminum fin having a thickness of 1.0 mm to be installed on

Fins are frequently installed on tubes by a press-fit process. Consider a circumferential aluminum fin having a thickness of 1.0 mm to be installed on a 2.5-cm-diameter aluminum tube. The fin length is 1.25 cm, and the contact conductance may be taken from Table 2-2 for a 100-μ in ground surface. The convection environment is at 20ºC, and h = 125 W/m2 · ºC. Calculate the heat transfer for each fin for a tube wall temperature of 200ºC. What percentage reduction in heat transfer is caused by the contact conductance?

Step by Step Solution

★★★★★

3.48 Rating (165 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

t 1 x 10 3 r 1 00125 L 00... View full answer

Question Has Been Solved by an Expert!

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

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

892-P-T-H-T (643).docx

120 KBs Word File

Students Have Also Explored These Related Thermodynamics Questions!

Copper fins with a thickness of 1.0 mm are installed on a 2.5-cm-diameter tube. The length of each fin is 12 mm. The tube temperature is 275C and the fins are exposed to air at 35C with a convection...

Repeat Problem 2-124 for aluminum fins installed on a copper tube. Problem 2-124 A tube assembly is constructed of copper with an inside diameter of 1.25 cm, wall thickness of 0.8 mm, and...

A circumferential aluminum fin is installed on a 25.4-mm-diameter tube. The length of the fin is 12.7 mm and the thickness is 1.0 mm. It is exposed to a convection environment at 30C with a...

Circumferential fins of rectangular profile are constructed of aluminum and attached to a copper tube having a diameter of 25 mm and maintained at 100C. The length of the fins is 2 cm and thickness...

ructure.com/counts/3444/igments/1474195 Mindset:Acknowledge the relationship between costs and financial performance Instructions The value of the Case Study is to identify and explain in detail the...

Insulating materials are frequently installed with a reflective coating to reduce the radiation heat transfer between the surface and the surroundings. An insulating material is installed on a...

Choose the best answer to each of the following questions. (There are 20 questions, each for 2 points, in total of 40 points. 17. is the sending and receiving of the messages by computer. It is a...

I. Describe that an application layer firewall or application firewall, is frequently installed on a dedicated computer, separate from the filtering router, but is commonly used in conjunction with a...

Choose the best answer to each of the following questions. (There are 20 questions, each for 2 points, in total of 40 points. 17. is the sending and receiving of the messages by computer. It is a...

Which of the following is a packet capture add - on that is frequently installed with Wireshark that enables the capture of more wireless information? A . AirPcap B . 3 Com C . QoS D . GemtekTE

18. (1) -NH -NH (II) CH3O- (III) NO1 NO The correct order of decreasing basicity of the above compounds is (a) I>II> III > IV (b) II>I>IV> III (c) III > IV>II>I -NH (IV) -NH (d) II > I > III > IV

Give the type of colloid (aerosol, foam, emulsion, sol, or gel) that each of the following represents. a. Rain cloud b. Milk of magnesia c. Soapsuds d. Silt in water

Consider the following balance sheet for Big Dog Games, Inc. Because Big Dog has $ 8 0 0 , 0 0 0 of retained earnings, we know that the company would be able to pay cash to buy an asset with a cost...

What does a SPI of 1.6 mean? A. All resources assigned to the project cost 1.6 units. B. A scope performance index of 1.6 suggests that the project is running ahead of the schedule. C. A schedule...

Estimate the heat transfer coefficient for liquid sodium at 1000?F flowing over a 10-row staggered-tube bank of 1 inch diameter tubes arranged in an equilateral-triangular array with a 1.5...

Liquid mercury at a temperature of 315?C flows at a velocity of 10 cm/s over a staggered bank of 5/8-in. 16 BWG stainless steel tubes, arranged in an equilateral triangular array with a...

Compare the rate of heat transfer and the pressure drop for an in-line and a staggered arrangement of a tube bank consisting of 300 tubes, 6 ft long and 1 in. OD. The tubes are to be arranged in 15...

Burnett Corporation pays a constant $ 1 9 dividend on its stock. The company will maintain this dividend for the next 7 years and will then cease paying dividends forever. If the required return on...

Laura Martin, an equity research analyst presents her DCF valuation analysis of Cox Communications as of March 1999 to you. She uses an explicit forecast of 10 years (1999-2008), and a terminal value...

Ying Import has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the following table. Bond, Coupon Rate, Price Quote, Maturity, Face Value Bond 1,...