BONUS POINTS QUIZ UP TO 5 BP Based on the following informat

BONUS POINTS QUIZ (UP TO 5 BP Based on the following information for a new, large subdivision in Lake Charles Design population 3,500 Average daily demand -300 lpcd (liters per capita per day) Groundwater will be used and the subdivision will have its own water tank Hourly Variation (for the worst day of the year) for the flow rates according to the following table a. Time (it/sec) Time it/sec) Time(it/sec 12AM12 1AM 2AM 3AM 4AM SAM 6AM 7AM 8AM 9AM 10AM 11AM 12PM 1PM 2PM 3PM 23 19 18 17 28 4PM SPM 6PM 7PM 8PM 9PM 10PM 11PM 21 42 39 25 19 12 12 26 25 Determine: 1) The PDF and PHF (peak daily and peak hourly factors) 2) The design flow rates for the pipeline running from the source to the tank and from the tank to the subdivision

Solution

SOLUTION

(Daily Demand x Peak factor ) / (time x 60 ) = Q

For 12AM

(300 x Pf) / (12 x 60) = 12

PHF = 28.8

PDF = Q/PHF = 12/28.8 = 0.42

(Daily Demand x Peak factor ) / (time x 60) = Q

For 1AM

(300 x Pf) / (1 x 60) = 8

PHF = 1.6

PDF = Q/PHF = 8/1.6 = 5

For 2AM

(300 x Pf) / (2 x 60) = 4

PHF = 1.6

PDF = Q/PHF = 4/1.6 = 2.5

For 3AM

(300 x Pf) / (3 x 60) = 11

PHF = 6.6

PDF = Q/PHF = 11/6.6 = 1.67

For 4AM

(300 x Pf) / (4 x 60) = 6

PHF = 4.8

PDF = Q/PHF = 6/4.8 = 1.25

For 5AM

(300 x Pf) / (5 x 60) = 7

PHF = 7

PDF = Q/PHF = 7/7 = 1

For 6AM

(300 x Pf) / (6 x 60) = 22

PHF = 26.4

PDF = Q/PHF = 22/26.4 = 0.83

For 7AM

(300 x Pf) / (7 x 60) = 26

PHF = 36.4

PDF = Q/PHF = 26/36.4 = 0.71

For 8AM

(300 x Pf) / (8 x 60) = 23

PHF = 36.8

PDF = Q/PHF = 23/36.8 = 0.625

For 9AM

(300 x Pf) / (9 x 60) = 19

PHF = 34.2

PDF = Q/PHF = 19/34.2 = 0.56

For 10AM

(300 x Pf) / (10 x 60) = 18

PHF = 36

PDF = Q/PHF = 18/36 = 0.5

For 11AM

(300 x Pf) / (11 x 60) = 17

PHF = 37.4

PDF = Q/PHF = 17/37.4 = 0.45

For 12PM

(300 x Pf) / (12 x 60) = 28

PHF = 67.2

PDF = Q/PHF = 28/67.2 = 0.42

For 1PM

(300 x Pf) / (1 x 60) = 33

PHF = 6.6

PDF = Q/PHF = 33/6.6 = 5

For 2PM

(300 x Pf) / (2 x 60) = 30

PHF = 12

PDF = Q/PHF = 30/12 = 2.5

For 3PM

(300 x Pf) / (3 x 60) = 25

PHF = 15

PDF = Q/PHF = 25/15= 1.67

For 4PM

(300 x Pf) / (4 x 60) = 21

PHF = 16.8

PDF = Q/PHF = 21/16.8= 1.25

For 5PM

(300 x Pf) / (5 x 60) = 55

PHF = 55

PDF = Q/PHF = 55/55= 1

For 6PM

(300 x Pf) / (6 x 60) = 42

PHF = 50.4

PDF = Q/PHF = 42/50.4= 0.83

For 7PM

(300 x Pf) / (7 x 60) = 39

PHF = 54.6

PDF = Q/PHF = 39/54.6= 0.79

For 8PM

(300 x Pf) / (8 x 60) = 25

PHF = 40

PDF = Q/PHF = 25/40= 0.625

For 9PM

(300 x Pf) / (9 x 60) = 19

PHF = 45

PDF = Q/PHF = 19/45= 0.56

For 10PM

(300 x Pf) / (10 x 60) = 12

PHF = 24

PDF = Q/PHF = 12/24= 0.5

For 11PM

(300 x Pf) / (11 x 60) = 12

PHF = 26.4

PDF = Q/PHF = 12/26.4= 0.45