The components of an electronic system dissipating 180 W are located in a 1 4 m long horizontal duct whose cross section is 20 cm 20 cm The components in the duct are cooled by forced air that enters the duct at 30 deg C and 1 atm at a rate of 0 6 m3 min and leaves at 40 deg C Determine the rate of heat transfer from the outer surfaces of the duct to the ambient Natural convection 40 C 25C 180w 14 m 30C 0 6 m3 min

Question: The components of an electronic system dissipating 180 W are located in a 1.4-m-long horizontal duct whose cross section is 20 cm = 20 cm.

The components of an electronic system dissipating 180 W are located in a 1.4-m-long horizontal duct whose cross section is 20 cm = 20 cm. The components in the duct are cooled by forced air that enters the duct at 30°C and 1 atm at a rate of 0.6 m3/min and leaves at 40°C. Determine the rate of heat transfer from the outer surfaces of the duct to the ambient.

The components of an electronic system dissipating

Natural convection 40 C 25C -180w 14 m 30C 0.6 m3/min

Step by Step Solution

★★★★★

3.53 Rating (160 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Also solved by EES on enclosed CD The components of an electronic device located in a horizontal duc... 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)

E-ME-T (1678).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

The components of an electronic system dissipate 90 W are located in a 1-m-long horizontal duct whose cross section is 16 cm ( 16 cm. The components in the duct are cooled by forced air, which enters...

The components of an electronic system are located in a 1.5-m-long horizontal duct whose cross section is 20 cm Ã 20 cm. The components in the duct are not allowed to come into direct contact...

An analysis in which all the components of an income statement are expressed as a percentage of net sales is called a. Solvency analysis. b. Horizontal analysis. c. Liquidity analysis. d. Vertical...

The components of an electronic system dissipating 180 W are located in a 1.4-m-long horizontal duct whose cross section is 20 cm 20 cm. The components in the duct are cooled by forced air that...

The components of an electronic system dissipating 180 W are located in a 1-m-long horizontal duct whose cross section is 16 cm 16 cm. The components in the duct are cooled by forced air, which...

Repeat Prob. 2090E assuming the fan fails and thus the entire heat generated inside the duct must be rejected to the ambient air by natural convection through the outer surfaces of the duct. Evaluate...

The components of an electronic system dissipating 180 W are located in a 4-ft-long horizontal duct whose cross section is 6 in Ã 6 in. The components in the duct are cooled by forced air,...

The components of an electronic system dissipating 1 8 0 W are located in a 1 . 4 - m - long horizontal duct whose cross section is 2 0 cm 2 0 cm . The components in the duct are cooled by forced air...

Required information The components of an electronic system dissipating 3 0 0 W are located in a 1 - m - long horizontal duct whose cross section is 1 6 c m 1 6 c m . The components in the duct are...

Question 2 : The components of an electronic system are located in a 1 . 5 - m - long horizontal duct whose cross section is \ ( 2 0 \ mathrm { ~cm } \ times 2 0 \ mathrm { ~cm } \ ) . The components...

Given the force field F, find the work required to move an object on the given oriented curve. F= (y, - x) on the path consisting of the line segment from (1,5) to (0,0) followed by the line segment...

Considering the Carnot cycle as applied to a liquid film, show that in an isothermal process the amount of heat required for the formation of a unit area of the surface layer is equal to q = T ....

2 . 2 Explain the elements of product manufacturing costs

Given the historical cost of product, Dominoe is $22, the selling price of product Dominoe is $30, costs to sell product Dominoe are $5, the replacement cost for product Dominoe is $20, and the...

P1 ac case of an amplifier circuit including two amplifiers (A1 and A2) is shown in the picture, above. The ac models of A1 and A2 are given in the picture, below. Find the ac transconductance gain...

3-2. In each case, determine the requested property values and show the states on carefully- labeled p-v and T-v diagrams: (a) For H20 at 5 bar, 245C, determine v in m'/kg and u in kJ/kg. (b) For...

Hooray! You won the lottery, but you have a choice of taking the $20,000 per year for the next 20 years or taking a lump settlement today. What would be the minimum amount you would accept today if...

Breon Beef Company uses the relative market value method of allocating joint costs in its production of beef products. Relevant information for the current period follows: Sirloin 3,000 $5.00...

You want to determine the density of a compound but have only a tiny crystal, and it would be difficult to measure mass and volume accurately. There is another way to determine density, however,...

Powder Mountain (PM) ski resort is currently using a Skidata barcode ticketing system. PM purchased the system three years ago for $1 million. The system includes barcode scanners and point-of-sale...

Microbiotics currently sells all of its frozen dinners cash on delivery but believes it can increase sales by offering supermarkets 1 month of free credit. The price per carton is $90, and the cost...

2.1.3 Question Help A frequency table of grades has five classes (A, B, C, D, F) with frequencies of 3, 15, 18, 6, and 2 @ respectively. Using percentages, what are the relative frequencies of the...