Engineering Fundamentals: An Introduction to Engineering
6th Edition
ISBN: 9780357112311
Author: Saeed Moaveni
Publisher: Cengage Learning US
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Chapter 11, Problem 31P
To determine
Find the amount of thermal energy required per hour
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please solve and neglect the distance between the two angles for simplecalculations
Determine the required solids retention time (SRT) of a completely mixed
activated sludge aeration tank for a conventional activated sludge system
treating a design flow rate of 34,560 m³/d, where the effluent standards are
30.0 mg/L for BODs and 30.0 mg/L for total suspended solids (TSS). Assume
that the BOD5 of the effluent TSS is 70% of the TSS concentration. Assume the
BODs concentration leaving the primary clarifier is 128 mg/L that the MLVSS
concentration (X₂) is 2,500 mg/L. Assume the following values for the growth
constants:
Ks 100 mg/L BODS
⚫ Hm - 2.5 d 1
kd = 0.050 d 1
Y = 0.50 mg VSS/mg BODs removed
Express your answer in days and round to the nearest 0.1.
For the gravity concrete dam shown in the figure, the following data are available:
Unit weight of concrete (7)-2.4 ton/m
Neglect Wave pressure, silt pressure, ice force and earth quake force)
-0.65, (7)-1 ton/m'
Solve on paper and sketch
Find factor of safety against sliding and overturning (F.Sa & F.S), If heel and toe stresses (Pain &
P) are 57.17ton/m2 and 84.53 ton/m² respectively.
Solve in table on paper
w.s.l
83m
10m
8m
80m
Chapter 11 Solutions
Engineering Fundamentals: An Introduction to Engineering
Ch. 11.2 - Prob. 1BYGCh. 11.2 - Prob. 2BYGCh. 11.2 - Prob. 3BYGCh. 11.2 - Prob. 4BYGCh. 11.2 - Prob. 5BYGCh. 11.2 - Prob. BYGVCh. 11.4 - Prob. 1BYGCh. 11.4 - Prob. 2BYGCh. 11.4 - Prob. 3BYGCh. 11.4 - Prob. 4BYG
Ch. 11.4 - Prob. BYGVCh. 11.6 - Prob. 1BYGCh. 11.6 - Prob. 2BYGCh. 11.6 - Prob. 3BYGCh. 11.6 - Prob. 4BYGCh. 11.6 - Prob. BYGVCh. 11 - Prob. 1PCh. 11 - Prob. 2PCh. 11 - Alcohol thermometers can measure temperatures in...Ch. 11 - Prob. 4PCh. 11 - Prob. 5PCh. 11 - Prob. 6PCh. 11 - Prob. 7PCh. 11 - Prob. 8PCh. 11 - Calculate the R-value for the following materials:...Ch. 11 - Calculate the thermal resistance due to convection...Ch. 11 - Prob. 11PCh. 11 - Prob. 12PCh. 11 - Prob. 13PCh. 11 - Estimate the change in the length of a power...Ch. 11 - Calculate the change in 5 m long copper wire when...Ch. 11 - Prob. 16PCh. 11 - Prob. 17PCh. 11 - Prob. 19PCh. 11 - Prob. 20PCh. 11 - Prob. 23PCh. 11 - Prob. 24PCh. 11 - Prob. 26PCh. 11 - Prob. 27PCh. 11 - Prob. 28PCh. 11 - Prob. 29PCh. 11 - Prob. 30PCh. 11 - Prob. 31PCh. 11 - Prob. 32PCh. 11 - Prob. 33PCh. 11 - Prob. 34PCh. 11 - Prob. 35PCh. 11 - For Problems 11.11, 11.12, and 11.13, calculate...Ch. 11 - Prob. 37PCh. 11 - Prob. 38PCh. 11 - Prob. 39PCh. 11 - Prob. 40PCh. 11 - Prob. 41PCh. 11 - Prob. 42PCh. 11 - Prob. 43PCh. 11 - Prob. 44PCh. 11 - Prob. 45PCh. 11 - Prob. 46PCh. 11 - Prob. 47PCh. 11 - Prob. 48PCh. 11 - Prob. 49PCh. 11 - Prob. 51PCh. 11 - Prob. 52PCh. 11 - Prob. 53PCh. 11 - Prob. 54PCh. 11 - Prob. 55P
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