ME405_Lecture_29

ME405_Lecture_29 - ME 405 Fall 2006 Professor John M....

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ME 405 Fall 2006 Professor John M. Cimbala Lecture 29 11/13/2006 Today, we will : Complete the hood/exhaust fan example problem from last time Go over Exam 2 Discuss Computational Fluid Dynamics in Chapter 10 Results of Exam 2: Mean : 72.7 Lowest : 54 Highest : 99 St. Dev : 11.6 Median : 69 Mode : 69 Example (continued from last time) Given : Air is drawn into a 45 o tapered hood, and then goes through a damper, several long sections of pipe, and three elbows, as sketched. The air is exhausted by a fan. duct length = 100 ft duct dia. = 6 in duct roughness = 0.006 in C o, hood = 0.15 C o, damper = 0.50 when fully open elbows are 5-gore, 90
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ME405_Lecture_29 - ME 405 Fall 2006 Professor John M....

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