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ASTRA Project Water System Design

The document provides details of the ASTRA - GEN. TRIAS project located in Cavite, Philippines including water supply system design calculations. It lists the number of rooms, persons per room, building height, and total persons for which fixtures and water supply are being designed. Tables show the number and type of plumbing fixtures on each floor and water supply calculations including storage tank sizes, pump discharge and head calculations.

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Karl Moralejo
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© © All Rights Reserved
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100% found this document useful (1 vote)
576 views26 pages

ASTRA Project Water System Design

The document provides details of the ASTRA - GEN. TRIAS project located in Cavite, Philippines including water supply system design calculations. It lists the number of rooms, persons per room, building height, and total persons for which fixtures and water supply are being designed. Tables show the number and type of plumbing fixtures on each floor and water supply calculations including storage tank sizes, pump discharge and head calculations.

Uploaded by

Karl Moralejo
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as XLS, PDF, TXT or read online on Scribd
You are on page 1/ 26

Project : ASTRA - GEN. TRIAS Date : JAN.

2021
Location : CAVITE Designed : KARL MORALEJO

Assumed Data * You are allowed to change


Calculated data * You are NOT ALLOWED to change
No. of Rooms = 27
No. of persons per room = 4
Building Lowest level (m) = 0
Building Highest level (m) = 21.4
Total No. of persons = 108
Project : ASTRA - GEN. TRIAS Date : JAN. 2021
Location : CAVITE Designed : KARL MORALEJO

Assumed Data * You are allowed to change


Calculated data * You are NOT ALLOWED to change

Table of total fixtures

Fixture type private


Total
FIXTURES / POINT NO. B3 B2 B1 G.F. F.F 2nd.F 3rd F 4th F. 5th F 6th F 7th F 8th F 9th F 10th F 11th F 12th F 13th F 14th F
fixtures

Water closet (flush valve) 0


Water closet (flush tank) 5 5 5 5 5 3 28
Water Bidet 0
Hose for W.C 5 5 5 5 5 3 28
Lavatory (& H.B.) 5 5 5 5 5 3 28
Janitor Sink 0 0 0 0 0 0
Service sink 0 0 0 0 0 0
Shower 5 5 5 5 5 3 28
Bath tub 0 0 0 0 0 0
Kitchen sink 5 5 5 5 5 1 26
Dishwashing machine 0 0 0 0 0 0
Laundry 5 5 5 5 5 25
Ablution (Public) 0 0 0 0 0 0
Urinal (1" flush valve) 0 0 0 0 0 0
Urinal (3/4" flush valve) 0 0 0 0 0 0
Urinal (flush tank) 0 0 0 0 0 0
Project : ASTRA - GEN. TRIAS Date : JAN. 2021
Location : CAVITE Designed : KARL MORALEJO

Assumed Data * You are allowed to change


Calculated data * You are NOT ALLOWED to change
Given Data:
Number of persons = 108
Design Basis of Water Supply System
Water Supply Demand:

Water Consumption(L/person/day) = 180


Water demand per day(m3/ day) = 20

Main Water Feeder :

Flow rate required ; Q(m3/ sec) = 0.000

Under Ground Water Tank :

Duration Assumption (day) = 1


Storage Fire Fighting Demand (m3) = 150

Storage water supply Demand (m3) = 25


Total Storage Demand (m3) = 175

Tank depth (m) = 4 * Could be changed according to Arch. Requirement


Tank Length (m) = 7.5 * Could be changed according to Arch. Requirement
Tank Width (m) = 6
Actual Area of Tank (m2) = 44
Tank depth (m) = 4
Tank Length (m) = 7.5
Tank Width (m) = 6

Upper Roof Water Tank :


Duration Assumption (day) = 0.5
Tank Storage Required (m3) = 10
Project : ASTRA - GEN. TRIAS Date : JAN. 2021
Location : CAVITE Designed : KARL MORALEJO

Assumed Data * You are allowed to change


Calculated data * You are NOT ALLOWED to change
Q (m3/day) = 20
Pump working hours = 6
Then

Lifting Pump Calculations

Pump Discharge

Q (GPM) = 15

Pump Head

Static Head Hs (m) = 23.54


Losses = 20.61

Pump Head (m) = 49

Time Required to Fill Upper Roof Tank

T (Hr) = 0.19

Power

Pump Efficiency = 0.8


Power (Hp) = 1

Booster Pump Calculations

Pump Discharge

Q (L/s) = 7
Pump Head (m) = 24

Power

Pump Efficiency = 0.8


Power (Hp) = 3
Project : Example Date : May 30, 2009
Location : Egypt Designe : Zanitty

Assumed Data * You are allowed to change


Calculated data * You are NOT ALLOWED to change
Head loss calculation using (1) COLBROOK Formula For DOMESTIC WATER BOOSTER

Total head (DH+GH) / pipe


Local factors of fittings

Accumulative Pressure
ID Pipe Inner diameter

RE Reynolds number
DN Nominal diameter

Loss m per 100 m


K Pipe roughness

F Liner loss factor


Total local factors

V Mean Velocity

dh(2) Local loss


dh(1) Liner loss
1.0 discharge outlet
no. part of pipe

GH Static head
1.0 Multimedia filter

0.3 elbow ( 45 leg.)


0.3 elbow ( 90 leg.)

DH Total loss
L Pipe length

Q Flow rate

2.0 check valve


1.0 Foot valve
0.2 gate valve

2.0 Strainer
0.5 reducer
0.9 tee
no. DN mm m mm GPM l/s 1/1 m m/s 1/1 1/1 m m m m m m

PUMP TO A 75 PVC 63.8 3 0.01 40 2.52 3 1 1 1 1 1 6.9 10 0.78826 50290.966 0.02141 1.06 0.03 0.219 0.25 10.3 10.25
A TO B 75 PVC 63.8 21 0.01 400 25.2 1 0.9 0 7.8826 502909.66 0.01501 74.5 15.6 2.85 18.5 18.5 28.75
B TO C 350 PVC 302.4 879 0.01 350 22.1 8 1 2.9 0 0.30701 92840.383 0.01844 0.03 0.26 0.014 0.27 0.27 29.02
C TO D 250 PVC 212.8 195 0.01 100 6.3 2 1 1.1 0 0.17714 37694.592 0.02241 0.02 0.03 0.002 0.03 0.03 29.05
D TO E 200 PVC 170.2 322 0.01 100 6.3 3 1 1 3.4 0 0.27691 47129.313 0.02137 0.05 0.16 0.013 0.17 0.17 29.23
E TO F 150 PVC 136.2 47 0.01 50 3.15 2 1 1.1 0 0.21621 29447.17 0.02377 0.04 0.02 0.003 0.02 0.02 29.25
F TO G 63 PVC 53.6 32 0.01 50 3.15 1 1 1 1.8 30 1.39602 74826.578 0.01993 3.69 1.18 0.179 1.36 31.4 60.61

TOTAL 1,499 3 1 1 1 1 16 1 5 2 1 18.1 40 11.0441 835138.67 0.14235 79.4 17 3 21 60.61


###
Static head = 40.00 m ###
Outlet pressure 35 PSI = 5.00 m ###
total friction loss = 20.61 m ###
total dynamic head = 65.61 m ###
Add 10 % safety 0.00 = 72.17 m ###
Head Loss Calculations:

The total friction loss Hs Consist of:

Hs = Hs1 + Hs2 …………………………………………………….…… (1)

Where: Hs1 : Friction loss Inside pipes


Hs2 : Friction loss inside fittings

Linear friction loss equation:

Hs = J . L …………………………………… ……………………………………... .... (2)

J = l . V² / ( 2 g D ) ………..…………………………………………………………….. (3)

Where: J : linear loss factor


L : length Of the pipe (m.)
l : friction loss factor (COLBROOK-WHITE formula)
V : velocity of water (m/s)
g : gravity acceleration (9.81 m/s²)
D : pipe inside diameter (m.)

COLBROOK WHITE formula:……………………………………………………………….. ( 4 )

1 k 2.51
= - 2 x log [ + )
sqr(l) 3.7 x D Re x sqr( l )

Where: K : pipe inside Surface roughness (m.)


D : pipe inside diameter (m.)
RE : REYNOLD’S no. is given as follows: (1/1)

RE = V x D / n …………………………………………………………………………. ( 5 )

Where: n : water viscosity= ( n = 1E-06 m2/s)


V : velocity of water (m/s)
D : pipe inside diameter (m.)

V = Q/A ………………………………………...………………………………………. ( 6 )

Where: Q : flow rate (m³/s)


A : cross section are of the pipe (m²)
Data for the First pipe : 300 PVC Pipe type & size 300
315 mm Out side diameter (mm)
23.8 mm Wall thickness (mm)

D = 0.2674 m : pipe inside diameter (m.)


K = 1E-05 m : pipe inside Surface roughness (m.)

Flow : Q = 400.0 GPM = 25.2 l/s = 0.0252 m�/sec

A = p x D2 / 4 = 3.14 x 0.267 � / 4 = 0.05616 m�

V = Q/A = 0.449 m/s

Re = V x D / n = 0.449 x 0.2674 / 0.000001 = 119991.16

1 1E-05 2.51
= - 2 log [ + ]
sqr(l) 3.7 x 0.267 119991.2 x sqr( l )

By solving above equation :

l= 0.01754

0.01754 x 0.4487 x 0.449


J = l . V² / ( 2 g D ) = = 0.00067 m/m
2 x 9.81 x 0.2674

Loss m per 100 m = J x 100 = 0.00067 x 100 m = 0.067 m / 100m

Pipe length L = 10.0 m

dh(1) Liner loss = J x L = 0.00067 x 10.0 = 0.007 m

Local losses equation is given as follows:

HS2 = SUM ZE . V ² / ( 2 . G ) …..…………………………………………………….. (7)

Where: G : Gravity acceleration (9.81 m/s²)


V : Velocity of water (m/s)
SUM ZE : Sum of local loss factors

SUM ZE = gate valve 3 x 0.2 = 0.6


Multimedia filter 1 x 1 = 1
Foot valve 1 x 1 = 1
check valve 1 x 2 = 2
elbow ( 45 leg.) 1 x 0.3 = 0.3
elbow ( 90 leg.) 0 x 0.3 = 0
tee 0 x 0.9 = 0
reducer 0 x 0.5 = 0
Strainer 1 x 2 = 2
discharge outlet 0 x 1 = 0
Total local factors = 6.90

HS2 = SUM ZE . V ² / ( 2 . g )

0.4487 X 0.4487
HS(2) = SUM ZE.x V² / ( 2 g ) = 6.9 x = 0.0708 m
2 x 9.81

DH Total loss = HS1 + HS2 = 0.007 + 0.071 = 0.078 m

Total head (DH+GH) / pipe = Static head + Friction losses ………………………. ( 8 )

= 10.0 + 0.078 = 10.078 m


Data for the Second pipe : 300 PVC Pipe type & size =f_loss!B11
315 mm Out side diameter (mm)
23.8 mm Wall thickness (mm)

D = 0.2674 m : pipe inside diameter (m.)


K = 1E-05 m : pipe inside Surface roughness (m.)

Flow : Q = 400.0 GPM = 25.2 l/s = 0.0252 m�/sec

A = p x D2 / 4 = 3.14 x 0.267 � / 4 = 0.05616 m�

V = Q/A = 0.177 m/s

Re = V x D / n = .177 x 0.2674 / 0.000001 = 37694.59

1 1E-05 2.51
= - 2 log [ + ]
sqr(l) 3.7 x 0.267 37694.6 x sqr( l )

By solving above equation : l= 0.02241

0.02241 x 0.1771 x 0.177


J = l . V² / ( 2 g D ) = = 0.00017 m/m
2 x 9.81 x 0.2674

Loss m per 100 m = J x 100 = 0.00017 x 100 m = 0.017 m / 100m

Pipe length L = 83.0 m

dh(1) Liner loss = J x L = 0.00067 x 83.0 = 0.056 m

Local losses equation is given as follows:

HS2 = SUM ZE . V ² / ( 2 . G )

SUM ZE = gate valve 0 x 0.2 = 0


Multimedia filter 0 x 1 = 0
Foot valve 0 x 1 = 0
check valve 0 x 2 = 0
elbow ( 45 leg.) 0 x 0.3 = 0
elbow ( 90 leg.) 0 x 0.3 = 0
tee 1 x 0.9 = 0.9
reducer 0 x 0.5 = 0
Strainer 0 x 2 = 0
discharge outlet 0 x 1 = 0
Total local factors = 0.90

HS2 = SUM ZE . V ² / ( 2 . g )

0.1771 X 0.1771
HS(2) = SUM ZE.x V² / ( 2 g ) = 0.9 x = 0.0018 m
HS(2) = SUM ZE.x V² / ( 2 g ) = 0.9 x = 0.0018 m
2 x 9.81

DH Total loss = HS1 + HS2 = 0.056 + 0.009 = 0.065 m

Total head (DH+GH) / pipe = Static head + Friction losses

= 0.0 + 0.035 = 0.035 m


Data for the Third pipe : 350 PVC Pipe type & size
355 mm Out side diameter (mm)
26.3 mm Wall thickness (mm)

D = 0.3024 m : pipe inside diameter (m.)


K = 1E-05 m : pipe inside Surface roughness (m.)

Flow : Q = 350.0 GPM = 22.05 l/s = 0.02205 m�/sec

A = p x D2 / 4 = 3.14 x 0.302 � / 4 = 0.07182 m�

V = Q/A = 0.307 m/s

Re = V x D / n = .307 x 0.3024 / 0.3 = 92840.38

1 1E-05 2.51
= - 2 log [ + ]
sqr(l) 3.7 x 0.302 47129.3 x sqr( l )

By solving above equation : l= 0.01844

0.01844 x 0.307 x 0.307


J = l . V² / ( 2 g D ) = = 0.0 m/m
2 x 9.81 x 0.3024

Loss m per 100 m = J x 100 = 0.00029 x 100 m = 0.029 m / 100m

Pipe length L = 879.0 m

dh(1) Liner loss = J x L = 0.00029 x 879.0 = 0.257 m

Local losses equation is given as follows:

HS2 = SUM ZE . V ² / ( 2 . G )

SUM ZE = gate valve 0 x 0.2 = 0


Multimedia filter 0 x 1 = 0
Foot valve 0 x 1 = 0
check valve 0 x 2 = 0
elbow ( 45 leg.) 0 x 0.3 = 0
elbow ( 90 leg.) 8 x 0.3 = 2.4
tee 0 x 0.9 = 0
reducer 1 x 0.5 = 0.5
Strainer 0 x 2 = 0
discharge outlet 0 x 1 = 0
0 = 2.90

HS2 = SUM ZE . V ² / ( 2 . g )

0.307 X 0.307
HS(2) = SUM ZE.x V² / ( 2 g ) = 2.9 x = 0.0 m
2 x 9.81

= HS1 + HS2 = 0.257 + 0.014 = 0.271 m

= Static head + Friction losses

= 0.0 + 0.271 = 0.271 m


Data for the Fourth pipe : 250 PVC Pipe type & size 250
250 mm Out side diameter (mm)
18.6 mm Wall thickness (mm)

D = 0.2128 m : pipe inside diameter (m.)


K = 1E-05 m : pipe inside Surface roughness (m.)

Flow : Q = 100.0 GPM = 06.3 l/s = 0.0063 m�/sec

A = p x D2 / 4 = 3.14 x 0.213 � / 4 = 0.03556 m�

V = Q/A = 0.177 m/s

Re = V x D / n = .177 x 0.2128 / = 92840.38

1 1E-05 2.51
= - 2 log [ + ]
sqr(l) 3.7 x 0.213 0.0 x sqr( l )

By solving above equation :

l= 0.02241

0.02241 x 0.1771 x 0.177


J = l . V² / ( 2 g D ) = = 0.0 m/m
2 x 9.81 x 0.2128

Loss m per 100 m = J x 100 = 0.00017 x 100 m = 0.017 m / 100m

Pipe length L = 195.0 m

dh(1) Liner loss = J x L = 0.00017 x 195.0 = 0.033 m

Local losses equation is given as follows:

HS2 = SUM ZE . V ² / ( 2 . G ) …..…………………………………………………….. (7)

Where: G : Gravity acceleration (9.81 m/s²)


V : Velocity of water (m/s)
SUM ZE : Sum of local loss factors

SUM ZE = gate valve 0 x 0.2 = 0


Multimedia filter 0 x 1 = 0
Foot valve 0 x 1 = 0
check valve 0 x 2 = 0
elbow ( 45 leg.) 0 x 0.3 = 0
elbow ( 90 leg.) 2 x 0.3 = 0.6
tee 0 x 0.9 = 0
reducer 1 x 0.5 = 0.5
Strainer 0 x 2 = 0
discharge outlet 0 x 1 = 0
Total local factors = 1.10

HS2 = SUM ZE . V ² / ( 2 . g )

0.1771 X 0.1771
HS(2) = SUM ZE.x V² / ( 2 g ) = 1.1 x = 0.0018 m
2 x 9.81

= HS1 + HS2 = 0.033 + 0.002 = 0.035 m

= Static head + Friction losses ………………………. ( 8 )

= 0.0 + 0.035 = 0.035 m


Data for the Fifth pipe : 200 PVC Pipe type & size 200
200 mm Out side diameter (mm)
14.9 mm Wall thickness (mm)

D = 0.1702 m : pipe inside diameter (m.)


K = 1E-05 m : pipe inside Surface roughness (m.)

Flow : Q = 100.0 GPM = 06.3 l/s = 0.0063 m�/sec

A = p x D2 / 4 = 3.14 x 0.17 � / 4 = 0.02275 m�

V = Q/A = 0.277 m/s

Re = V x D / n = 0.277 x 0.1702 / = 47129.31

1 1E-05 2.51
= - 2 log [ + ]
sqr(l) 3.7 x 0.17 47129.3 x sqr( l )

By solving above equation :

l= 0.02137

0.02137 x 0.2769 x 0.277


J = l . V² / ( 2 g D ) = = 0.00049 m/m
2 x 9.81 x 0.1702

Loss m per 100 m = J x 100 = 0.00049 x 100 m = 0.049 m / 100m

Pipe length L = 322.0 m

dh(1) Liner loss = J x L = 0.00049 x 322.0 = 0.158 m

Local losses equation is given as follows:

HS2 = SUM ZE . V ² / ( 2 . G ) …..…………………………………………………….. (7)

Where: G : Gravity acceleration (9.81 m/s²)


V : Velocity of water (m/s)
SUM ZE : Sum of local loss factors

SUM ZE = gate valve 0 x 0.2 = 0


Multimedia filter 0 x 1 = 0
Foot valve 0 x 1 = 0
check valve 0 x 2 = 0
elbow ( 45 leg.) 0 x 0.3 = 0
elbow ( 90 leg.) 3 x 0.3 = 0.9
tee 0 x 0.9 = 0
reducer 1 x 0.5 = 0.5
Strainer 1 x 2 = 2
discharge outlet 0 x 1 = 0
Total local factors = 3.40

HS2 = SUM ZE . V ² / ( 2 . g )

0.2769 X 0.2769
HS(2) = SUM ZE.x V² / ( 2 g ) = 3.4 x = 0.0133 m
2 x 9.81

= HS1 + HS2 = 0.158 + 0.013 = 0.171 m

= Static head + Friction losses ………………………. ( 8 )

= 0.0 + 0.171 = 0.171 m


Data for the Sexth pipe : 150 PVC Pipe type & size 150
160 mm Out side diameter (mm)
11.9 mm Wall thickness (mm)

D = 0.1362 m : pipe inside diameter (m.)


K = 1E-05 m : pipe inside Surface roughness (m.)

Flow : Q = 50.0 GPM = 03.15 l/s = 0.00315 m�/sec

A = p x D2 / 4 = 3.14 x 0.136 � / 4 = 0.01457 m�

V = Q/A = 0.216 m/s

Re = V x D / n = 0.216 x 0.1362 / = 29447.17

1 1E-05 2.51
= - 2 log [ + ]
sqr(l) 3.7 x 0.136 0.0 x sqr( l )

By solving above equation :

l= 0.02377

0.02377 x 0.2162 x 0.216


J = l . V² / ( 2 g D ) = = 0.0 m/m
2 x 9.81 x 0.1362

Loss m per 100 m = J x 100 = 0.00042 x 100 m = 0.042 m / 100m

Pipe length L = 47.0 m

dh(1) Liner loss = J x L = 0.00042 x 47.0 = 0.02 m

Local losses equation is given as follows:

HS2 = SUM ZE . V ² / ( 2 . G ) …..…………………………………………………….. (7)

Where: G : Gravity acceleration (9.81 m/s²)


V : Velocity of water (m/s)
SUM ZE : Sum of local loss factors

SUM ZE = 0 0 x 0.2 = 0
0 0 x 1 = 0
0 0 x 1 = 0
0 0 x 2 = 0
0 0 x 0.3 = 0
0 2 x 0.3 = 0.6
0 0 x 0.9 = 0
0 1 x 0.5 = 0.5
0 0 x 2 = 0
0 0 x 1 = 0
0 = 1.10

HS2 = SUM ZE . V ² / ( 2 . g )

0.2162 X 0.2162
HS(2) = SUM ZE.x V² / ( 2 g ) = 1.1 x = 0.0026 m
2 x 9.81

= HS1 + HS2 = 0.02 + 0.003 = 0.022 m

= Static head + Friction losses ………………………. ( 8 )


= 0.0 + 0.022 = 0.022 m
Data for the Seventh pipe : 63 PVC Pipe type & size 63
63 mm Out side diameter (mm)
4.7 mm Wall thickness (mm)

D = 0.0536 m : pipe inside diameter (m.)


K = 1E-05 m : pipe inside Surface roughness (m.)

Flow : Q = 50.0 GPM = 03.15 l/s = 0.00315 m�/sec

A = p x D2 / 4 = 3.14 x 0.054 � / 4 = 0.00226 m�

V = Q/A = 1.396 m/s

Re = V x D / n = 1.396 x 0.0536 / = 74826.58

1 1E-05 2.51
= - 2 log [ + ]
sqr(l) 3.7 x 0.054 0.0 x sqr( l )

By solving above equation :

l= 0.01993

0.01993 x 1.396 x 1.396


J = l . V² / ( 2 g D ) = = 0.0 m/m
2 x 9.81 x 0.0536

Loss m per 100 m = J x 100 = 0.03694 x 100 m = 3.694 m / 100m

Pipe length L = 32.0 m

dh(1) Liner loss = J x L = 0.03694 x 32.0 = 1.182 m

Local losses equation is given as follows:

HS2 = SUM ZE . V ² / ( 2 . G ) …..…………………………………………………….. (7)

Where: G : Gravity acceleration (9.81 m/s²)


V : Velocity of water (m/s)
SUM ZE : Sum of local loss factors

SUM ZE = 0 0 x 0.2 = 0
0 0 x 1 = 0
0 0 x 1 = 0
0 0 x 2 = 0
0 0 x 0.3 = 0
0 1 x 0.3 = 0.3
0 0 x 0.9 = 0
0 1 x 0.5 = 0.5
0 0 x 2 = 0
0 1 x 1 = 1
0 = 1.80

HS2 = SUM ZE . V ² / ( 2 . g )

1.396 X 1.396
HS(2) = SUM ZE.x V² / ( 2 g ) = 1.8 x = 0.1788 m
2 x 9.81

= HS1 + HS2 = 1.182 + 0.179 = 1.361 m

= Static head + Friction losses ………………………. ( 8 )


= 30.0 + 1.361 = 31.361 m
Project : ASTRA - GEN. TRIASDate : JAN. 2021
Location : CAVITE Designed : KARL MORALEJO

Assumed * You are allowed to change


Calculated* You are NOT ALLOWED to change

Given Data:
Number of persons = 108

Boiler Design

Water Consumption(L/person/day) = 180


Hot Water Consumption (L) = 54
Hot Water demand per day(m3/ day) = 6
Average Demand per Hour (m3/h) = 1
Peak Duration (h) = 3
Volume of Heated Water (m3) = 3
Cold Water Tank Volume % = 25%
Tank Volume (m3) = 4

Tank Diameter (m) =2


Tank Length (m) =2
Project : ASTRA - GEN. TRIASDate : JAN. 2021
Location : CAVITE Designed : KARL MORALEJO

Assumed * You are allowed to change


Calculated* You are NOT ALLOWED to change

Design of Circulating Pump

Q (m3/h) = 1
Q (l/s) = 1
Head (m) = 24
Pump Efficiency = 0.8
Power (Hp) = 1
Project : ASTRA - GEN. TRIASDate : JAN. 2021
Location : CAVITE Designed : KARL MORALEJO

Assumed * You are allowed to change


Calculated* You are NOT ALLOWED to change

Drain Sump

Sewer Drainage
No. of Drainage Fixtures = 0
Fixtures Flow Rate (L / min) = 0

Parking Area Drainage


Car Demand (L / car / day) = 30
No. of cars = 20
Parking Drainage (L / min) = 1

Laundry Drainage
Laundry Demand (L / bed / day) = 130
No. of beds = 108
Laundry Drainage (L / min) = 10

Kitchen Drainage
Kitchen Demand (L / person / day) = 160
No. of persons = 108
Kitchen Drainage (L / min) = 12

Total Drainage Flow (L / min) = 23

Duration Time of Empting Sump (min) = 10

Sump Capacity (m3) = 0

Sump Depth (m) = 1.5


Water Surface Area (m2) = 1

Pump occupancy of Sump Area = 40%


Water occupancy of Sump Area = 60%
Sump Surface Area (m2) = 2

Sump Dimension
Sump depth (m) = 2
Sump Length (m) = 2
Sump Width (m) = 2
Project : ASTRA - GEN. TRIASDate : JAN. 2021
Location : CAVITE Designed : KARL MORALEJO

Assumed * You are allowed to change


Calculated* You are NOT ALLOWED to change

Design of submersible Pump


Sump Capacity (m3) = 8
Sump Empting Time (min) = 10

Q (L/S) = 14
Q (m3/s) = 0.014
Main Pipe Velocity (m/s) = 1
Main Pipe Diameter (mm) = 140 * Take the larger Standard Size

Pump Head

Static Head Hs (m) = 6 *From Sump Bottom Level to Septic Tank


Assume Losses (m) = 0.1 of static Head
Losses = 0.6

Pump Head (m) = 8

Power

Pump Efficiency = 0.8


Power (Hp) = 2
Project : ASTRA - GEN. TRIAS Date : JAN. 2021
Location : CAVITE Designed : KARL MORALEJO

Assumed D* You are allowed to change


Calculated * You are NOT ALLOWED to change

Design of Reaction Tank

Q (m3/day) = 20
Q Sewer (m3/day) = 18
Sewerage Flow to Be Treated (m3/day) = 17

Assume

Reaction Tank Dimension


Length (m) = 25
Width (m) = 15
Depth (m) = 3
Water Dimensions
Length (m) = 3
Width (m) = 3
Depth (m) = 2.5

Reaction Tank Capacity (m3) = 22.5

Times to Fill Tank (time/day) = 1

Filter Design

Filtration Rate (m3/m2/h) = 22.5


Qpump (m3/h) = 4
Filter Area (m2) = 5.63

Filter Diameter (m) = 2.68


Project : ASTRA - GEN. TRIASDate : JAN. 2021
Location : CAVITE Designed : KARL MORALEJO

Assumed * You are allowed to change


Calculated* You are NOT ALLOWED to change

Filtration Pump

Capacity (m3) = 23
Pump working hours = 12
Working time (h) = 12.0
Qpump (L/S) = 1
Pump Head (m) = 24
Pump Efficiency = 0.8
Power (Hp) = 1

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