Engineering Fundamentals: An Introduction to Engineering
6th Edition
ISBN: 9780357112311
Author: Saeed Moaveni
Publisher: Cengage Learning US
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Chapter 8, Problem 49P
To determine
Calculate the total amount of water consumed by the dishwasher in a year.
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In one of the industrial zones, sewage
is treated to produce usable fertilizers
and arable water by removing
polluting materials from it. If you
know that 12% of polluting materials
are removed in one hour.
A- What is the percentage of sewage
water that can be treated in one day?
(Calculate 24 working hours today)
B-How many hours does it take to
treat 10% of the sewage?
C- How many hours does it take to
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Check my answer, please.
To calculate the savings, we need to first determine reduction in waste- water generation for given 7 million population of Hongkong, only 1 million people in HK using low flush toilet and low shower head/ 1 million leaky toilet and faucet. Assume all use shower.
Conventional Water fixtures
End-Use
Conventional fixtures
Usage pattern
Population
Daily Usage
Toilets
3.5 gal/flush
4 flushes/per/day
6 million
3.5*4*6 = 84 million gallons
Showers
5 gal/min
5 min/shower
6 million
5*5*6 = 150 million gallons
Faucets
4 gal/min
2.5 min/per/day
6 million
4*2.5*6 = 60 million gallons
Leaks
10% of total use
-
-
0.1*(84+150+60) = 29.4 million gallons
Total
323.4 million gallons
Water efficient fixtures
End-Use
Water efficient fixtures
Usage pattern
Population
Daily Usage
Toilets
1.6 gal/flush
4 flushes/per/day
1 million
1.6*4*1 = 6.4 million gallons
Showers
2.5…
Each hour an oil burner runs, the nozzle sprays 3⁄4 gallon of fuel. If the burnerruns for 21⁄2 hours, how much fuel is sprayed into the burner?
Chapter 8 Solutions
Engineering Fundamentals: An Introduction to Engineering
Ch. 8.2 - Prob. 1BYGCh. 8.2 - Prob. 2BYGCh. 8.2 - Prob. 3BYGCh. 8.2 - Prob. 4BYGCh. 8.2 - Prob. BYGVCh. 8.4 - Prob. 1BYGCh. 8.4 - Prob. 2BYGCh. 8.4 - Prob. 3BYGCh. 8.4 - Prob. BYGVCh. 8.5 - Prob. 1BYG
Ch. 8.5 - Prob. 2BYGCh. 8.5 - Prob. 3BYGCh. 8.5 - Prob. 4BYGCh. 8.5 - Prob. BYGVCh. 8 - Prob. 1PCh. 8 - Prob. 3PCh. 8 - Prob. 4PCh. 8 - Prob. 9PCh. 8 - Prob. 10PCh. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - Prob. 13PCh. 8 - Prob. 14PCh. 8 - Prob. 15PCh. 8 - Prob. 17PCh. 8 - Prob. 18PCh. 8 - Prob. 19PCh. 8 - Prob. 20PCh. 8 - Prob. 21PCh. 8 - Prob. 22PCh. 8 - Prob. 23PCh. 8 - Prob. 24PCh. 8 - Prob. 25PCh. 8 - Prob. 26PCh. 8 - Prob. 27PCh. 8 - Prob. 28PCh. 8 - Prob. 29PCh. 8 - Prob. 30PCh. 8 - Prob. 31PCh. 8 - Prob. 32PCh. 8 - Prob. 33PCh. 8 - Prob. 34PCh. 8 - Prob. 35PCh. 8 - Prob. 36PCh. 8 - Prob. 37PCh. 8 - Prob. 38PCh. 8 - Prob. 39PCh. 8 - Prob. 40PCh. 8 - Prob. 41PCh. 8 - Prob. 42PCh. 8 - Prob. 43PCh. 8 - Prob. 44PCh. 8 - Prob. 45PCh. 8 - Prob. 46PCh. 8 - Prob. 47PCh. 8 - Prob. 48PCh. 8 - Prob. 49PCh. 8 - Prob. 50PCh. 8 - Prob. 51PCh. 8 - Prob. 52PCh. 8 - Prob. 53PCh. 8 - Prob. 54PCh. 8 - Prob. 55PCh. 8 - Prob. 56PCh. 8 - Prob. 57PCh. 8 - Prob. 58PCh. 8 - Prob. 59P
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