39 286 7.900 Determine the possible flow into MH DI from the WWS piping in Chesapeake Bay, which is shown on the following page. Calculate: (a) the peak sewage flow based on the following criteria: Average water demand 300 LCD Waste water generated = water supplied Peaking factor is 4 Population density 3.1 people per dwelling unit. (b) the total extraneous flow based on the following criteria: Length of WWS piping 115 meters Foundation drain flow rate 0.5 L/s/dwelling unit Average roof size 150 m², with a surface runoff coef. of 0.8 Rainfall intensity 40 mm/hour Manhole inflow | L/s. Joint infiltration 600 litres/day/ 100mm pipe A MINIMUM CLEARANCE R TO WM 1.5 m CURVE DATA R = 106.680 A 12° 32'00" ST-11.715 Lc 23.336 45 4.877 STA. O 33.528 13.036 R-16.764 32-750 SR=4-572 R-3-048- 32-750 32-600- 3-777 MH D3 6-032 24-384 -50w 70 of 250 CB LEADS 15-304 4.267 150 W. M. 32-420- 32520 10 of 300 CB LEAD 32.420- MH.D2 24-384 MH.S5 32.754 32.954 11-086 12.192 11-582 6-440 10-049 286 ㅈ MINIMUM CLEARANCE R TO WWS 1.5m 36 24.384 BOULEVARD 32,754 MH S6 MH DI 5.486 250 1 SS 3.048 375 LDS RDMORE 2 2/4 < >

Sustainable Energy
2nd Edition
ISBN:9781337551663
Author:DUNLAP, Richard A.
Publisher:DUNLAP, Richard A.
Chapter11: Hydroelectric Energy
Section: Chapter Questions
Problem 4P
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39
286
7.900
Determine the possible flow into MH DI from the WWS piping in Chesapeake Bay, which is
shown on the following page. Calculate:
(a) the peak sewage flow based on the following criteria:
Average water demand 300 LCD
Waste water generated = water supplied
Peaking factor is 4
Population density 3.1 people per dwelling unit.
(b) the total extraneous flow based on the following criteria:
Length of WWS piping 115 meters
Foundation drain flow rate 0.5 L/s/dwelling unit
Average roof size 150 m², with a surface runoff coef. of 0.8
Rainfall intensity 40 mm/hour
Manhole inflow | L/s.
Joint infiltration 600 litres/day/ 100mm pipe
A
MINIMUM
CLEARANCE R
TO WM 1.5 m
CURVE DATA
R = 106.680
A 12° 32'00"
ST-11.715
Lc 23.336
45
4.877
STA. O 33.528
13.036
R-16.764
32-750
SR=4-572
R-3-048-
32-750
32-600-
3-777
MH
D3
6-032
24-384
-50w
70 of 250 CB LEADS
15-304
4.267
150 W. M.
32-420-
32520
10 of 300 CB LEAD 32.420-
MH.D2
24-384
MH.S5
32.754
32.954
11-086
12.192
11-582
6-440
10-049
286
ㅈ
MINIMUM
CLEARANCE R
TO WWS 1.5m
36
24.384
BOULEVARD
32,754
MH S6
MH DI
5.486
250 1
SS
3.048
375 LDS
RDMORE
2
2/4
< >
Transcribed Image Text:39 286 7.900 Determine the possible flow into MH DI from the WWS piping in Chesapeake Bay, which is shown on the following page. Calculate: (a) the peak sewage flow based on the following criteria: Average water demand 300 LCD Waste water generated = water supplied Peaking factor is 4 Population density 3.1 people per dwelling unit. (b) the total extraneous flow based on the following criteria: Length of WWS piping 115 meters Foundation drain flow rate 0.5 L/s/dwelling unit Average roof size 150 m², with a surface runoff coef. of 0.8 Rainfall intensity 40 mm/hour Manhole inflow | L/s. Joint infiltration 600 litres/day/ 100mm pipe A MINIMUM CLEARANCE R TO WM 1.5 m CURVE DATA R = 106.680 A 12° 32'00" ST-11.715 Lc 23.336 45 4.877 STA. O 33.528 13.036 R-16.764 32-750 SR=4-572 R-3-048- 32-750 32-600- 3-777 MH D3 6-032 24-384 -50w 70 of 250 CB LEADS 15-304 4.267 150 W. M. 32-420- 32520 10 of 300 CB LEAD 32.420- MH.D2 24-384 MH.S5 32.754 32.954 11-086 12.192 11-582 6-440 10-049 286 ㅈ MINIMUM CLEARANCE R TO WWS 1.5m 36 24.384 BOULEVARD 32,754 MH S6 MH DI 5.486 250 1 SS 3.048 375 LDS RDMORE 2 2/4 < >
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