Question

Air enters a 11-m-long section of a square channel of cross section 15 cm × 15...

Air enters a 11-m-long section of a square channel of cross section 15 cm × 15 cm made of commercial steel at an average velocity of 5 m/s. Disregarding the entrance effects, determine the fan power needed to overcome the pressure losses in this section of the channel if Reynolds number is 2000.

Please answer in detail, do not repost other work as it is not the same. Thank you.

Engineering   Mechanical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Air enters a 11-m-long section of an ellipse of cross section 30 cm × 15 cm...
Air enters a 11-m-long section of an ellipse of cross section 30 cm × 15 cm made of commercial steel at an average velocity of 5 m/s. Disregarding the entrance effects, determine the fan power needed to overcome the pressure losses in this section of the channel if Reynolds number is 2000.
AIR ENTER A 5-M-LONG SECTION OF A RECTANGULAR DUCT OF CROSS SECTION 12*18 CM MADE OF...
AIR ENTER A 5-M-LONG SECTION OF A RECTANGULAR DUCT OF CROSS SECTION 12*18 CM MADE OF COMMERCIAL STEEL AT 1 ATM AND 35ºc AT AN AVERAGE VEL OF 6M/S. DISGREGARDING THE ENTRANCE EFFECTS, DETERMINE THE FAN POWER NEEDED TO OVERCOME THE PRESSURE LOSSES IN THIS SECTION OF THE DUCT. THE PROBLEM IS VERY SIMILAR IN THE CHAP 8 PROB 43 OF THE CENGEL MECHANIC OF FLUIDS 3RD ED. I JUST WANT TO KNOW THE RESULT WITH MY DATES AND HOW...
Air flows in a duct of circular cross-section and internal diameter 1 m at 0.7 m...
Air flows in a duct of circular cross-section and internal diameter 1 m at 0.7 m s-1 . The duct enters a tee of rectangular cross-section 1 m by 0.6 m where the flow splits equally. Find the flow velocity in the outlets.
An 8-m-long, uninsulated square duct of cross section 0.2 m X 0.2 m and relative roughness...
An 8-m-long, uninsulated square duct of cross section 0.2 m X 0.2 m and relative roughness 10-3 passes through the attic space of a house. Hot air enters the duct at 1 atm and 100oC at a volume flow rate of 0.15 m3/s. The duct surface is nearly isothermal at 60oC. Determine the rate of heat loss from the duct to the attic space and the pressure difference between the inlet and outlet sections of the duct. Evaluate air properties...
a) Two beam specimens with 15 cm square cross-section and 45 cm span length, made from...
a) Two beam specimens with 15 cm square cross-section and 45 cm span length, made from the same concrete, were tested under 3-point bending and 4point bending. The fracture loads were 20 kN and 25 kN, respectively. Calculate the flexural strength for both cases, in MPa. b) Estimate the compressive strength of this concrete.
An asbestos pad is square in cross section, measuring 5 cm on a side at its...
An asbestos pad is square in cross section, measuring 5 cm on a side at its small end and it increases linearly to 10 cm on a side at the large end. The pad is 15 cm high. A. If the small end is held at 600 K and the large end at 300 K, what heat-flow rate will be obtained if the four sides are insulated? Assume one-dimensional heat conduction. The thermal conductivity of asbestos is 0.173 W/m*K. Report...
A beam of square cross section, 10 x 10 cm and length 5 m has a...
A beam of square cross section, 10 x 10 cm and length 5 m has a Young’s modulus of 200 GPa and density 7800 kg/m3. For a case of simply supported ends determine the first three natural frequencies and correspondent modes shapes.
A bank of tubes is used in a commercial heat pump to heat air at 1...
A bank of tubes is used in a commercial heat pump to heat air at 1 atm and 15 °C. The bank of tubes consists of 80 tubes of 9.52 mm in diameter in an arrangement alternated with 10 rows, 2.5m deep, 1.19 cm longitudinal weight and 1.43 cm cross section. The air enters with a speed of 6.8 m / s and the walls of the tubes are maintained at 65 ° C. Determine the temperature of the air...
A stainless-steel fin (k = 16 W/m. °C) has a length of 15 cm and a...
A stainless-steel fin (k = 16 W/m. °C) has a length of 15 cm and a square cross section 12.5 by 12.5 mm attached to a wall maintained at 250 °C. The heat-transfer coefficient is 40 W/m. °C, and the environment temperature is 90 °C. Calculate the percentage increase in heat transfer after attaching the fin.
Question: Determine the most economical cross-section of a three-core cable 300 m long supplying a load...
Question: Determine the most economical cross-section of a three-core cable 300 m long supplying a load of 150 kW at 400 V and 0.85 p.f. lagging for 5000 hours in a year and no load for the rest of the year. The cost of the cable including its installation is Rs. (200a + 40)/m where “a” is in square cm. Interest and depreciation on total cost is 15% and unit cost of energy loss is 15 paisa. Assume resistance of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT