Question 4 25 35 7 M Air Enters A 35 7 M Long Section Of A Rectangular Duct Of Cross Section 11 Cm X 29 Cm Made Of W 1 (21.38 KiB) Viewed 12 times
I dont know the v (velocity) Question 4. (25%) 35.7 m Air enters a 35.7-m-long section of a rectangular duct of cross section 11 cm x 29 cm made of wrought iron at 1 atm and 35°C. Disregarding the entrance effects, determine the fan power needed to overcome the pressure losses in this section of the duct. Take air properties at 1 atm and 35°C as p= 1.145 kg/m"; u= 1.85 x 105 kg/m's; v= 1.655x109 m/s. and head loss = 3.8m 11 cm Air V m/s 29 cm
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