An air-conditioning system is designed to have a ductwith a rectangular cross section 1 ft by 2 ft, as shown. Duringconstruction, a truck driver backed into the duct and made it atrapezoidal section, as shown. The contractor, behind schedule,installed it anyway. For the same pressure drop along the pipe,what will be the ratio of the velocity in the trapezoidal duct tothat in the rectangular duct? Assume the Darcy-Weisbach resistance coefficient is the same for both ducts. 10.86 An air-conditioning system is designed to have a ductwith a rectangular cross section 1 ft by 2 ft, as shown. Duringconstruction, a truck driver backed into the duct and made it atrapezoidal section, às shown. The contractor, behind schedule,installed it anyway. For the same pressure drop along the pipe,what will be the ratio of the velocity in the trapezoidal duct tothat in the rectangular duct? Assume the Darey-Weisbach resis-tance coefficient is the same for both ducts.1 ft0.70 ft-2 ft-BeforeAfterPROBLEM 10.86

Given Data For the same pressure drop along the pipe ∆hrect=∆htrap (hf)rect=(hf)trap Hydraulic…

Answered: 10.86 An air-conditioning system is…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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An air-conditioning system is designed to have a duct
with a rectangular cross section 1 ft by 2 ft, as shown. During
construction, a truck driver backed into the duct and made it a
trapezoidal section, as shown. The contractor, behind schedule,
installed it anyway. For the same pressure drop along the pipe,
what will be the ratio of the velocity in the trapezoidal duct to
that in the rectangular duct? Assume the Darcy-Weisbach resistance coefficient is the same for both ducts.

10.86 An air-conditioning system is designed to have a duct
with a rectangular cross section 1 ft by 2 ft, as shown. During
construction, a truck driver backed into the duct and made it a
trapezoidal section, às shown. The contractor, behind schedule,
installed it anyway. For the same pressure drop along the pipe,
what will be the ratio of the velocity in the trapezoidal duct to
that in the rectangular duct? Assume the Darey-Weisbach resis-
tance coefficient is the same for both ducts.
1 ft
0.70 ft
-2 ft-
Before
After
PROBLEM 10.86

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