Homework6_Sol

Homework6_Sol - MCE311 Homework # 6 Question 1: Solution:...

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MCE311 Homework # 6 Question 1: Solution: from appendix B-1 for T=25 o C, 2 3 3 / 10 903 . 0 / 95 . 996 m Ns m kg Assuming a machined inlet cone , C = 0.995 (Table 10.1) m D D D D D s m P A A CA Q 051 . 0 ) 31 . 975 , 1 ( 1 063 . 6 016 . 0 ) 95 . 996 ( / ) 000 , 30 ( 2 ) 15 . 0 / ( 1 4 / ) ( ) 995 . 0 ( / 016 . 0 / 2 ) / ( 1 2 4 2 2 2 4 2 2 2 3 2 1 2 2 To check if the correct value of discharge coefficient (C) was used, 1 . 882 , 149 10 903 . 0 15 . 0 * 91 . 0 * 95 . 996 Re sec / 91 . 0 ) 15 . 0 ( 4 016 . 0 , Re 34 . 0 15 . 0 051 . 0 3 2 1 1 1 1 2 m A Q V D V D D This value of Re is below the given value in Table 10.1. so the uncertianty in the value of C is greater than 10%. .
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Question 2: Solution: from appendix B-2 for T=80F, ft hr lb ft lb m m . / 08 . 2 / 17 . 62 3 Assuming a machined inlet cone , C = 0.995 (Table 10.1) in D D D D D cfs P A A CA Q 01 . 2 10 * 391 . 7 ( 1 14794 . 0 6 . 0 ) 17 . 32 / 34 . 62 ( / ) 144 * 5 ( 2 ) 065 . 6 / ( 1 4 / ) 12 / ( ) 995 . 0 ( 6 . 0 / 2 ) / ( 1 2 4 2 4 2 2 4 2 2 2 2 1 2 2 To check if the correct value of discharge coefficient (C) was used, 722 , 162 3600 / 08 . 2 12 / 065 . 6 * 3 * 17 . 62 Re sec / 3 ) 12 / 065 . 6 ( 4 6 . 0 , Re 33 . 0 065 . 6 02 . 2 2 1 1 1 1 2 ft A Q V D V D D This value of Re is slightly below the given value in Table 10.1. so the uncertainty in the value of C may be greater than
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This note was uploaded on 02/12/2012 for the course MCE 331 taught by Professor Ali during the Spring '11 term at American Dubai.

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Homework6_Sol - MCE311 Homework # 6 Question 1: Solution:...

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