Homework6_Sol

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

This preview shows pages 1–4. Sign up to view the full content.

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%. .

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
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

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## 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.

### Page1 / 4

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

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online