BRE349 Domestic plumbing Essay

BRE349 Plumbing

Plumbing System Design

Case Study on

Workingview Commercial Building

Content

1 . Background Information

installment payments on your Plumbing System Arrangement

three or more. Water Require

4. Drinking water Storage

a few. Pipe Sizing

6. Water line Materials

six. Other Concern

Background Information

Brand: Workingview Commercial Building

Address: 21 Yiu Wah Road, Causeway Gulf, Hong Kong

Yr of completion: 1994

Key usage: Business offices

No . of storey: 26

Domestic plumbing System Arrangement

1 . Indirect Water Supply System: Fresh & Flush

Drinking water

2 . Sump and Pump System

several. Gravity Source System

four. Pressure Reducing Valve (PRV)

Water Require

в—Џ Intake of normal water in the building

depends on building type, equipment capacity, and so forth

в—Џ provide an optimal drinking water flow charge and water pressure

assure the delivery of drinking water to all flats

в—Џ consider the maximum frequency of use

normal water usage rate and time

dependability and risk management

Water Require

в—Џ

в—Џ

в—Џ

в—Џ

в—Џ

Federal government supply key

Position of check m

Copper tube for potable water

PVC pipe for flushing normal water

transfer to pump room after which roof

Drinking water Demand

building type: business building

quantity of occupants: 6th flats every single floor

and 26 storeys

1 clean basin and 1 wc cistern at each flat

Drinking water Demand

•Most fittings are being used only for irregular intervals

• It is unlikely that most the home appliances will be used

together

• No requirement to size pipework on continuous maximum

Drinking water Demand

Apply probability theory,

• Suppose random utilization with fittings

• Identify maximum frequencies of use

• Estimate normal water usage rates & time

Normal water Demand

Loading unit

One factor given to an appliance relating the

flow level

To evaluate the probable maximum water

consumption

Relates the flow price to possible usage

Normal water storage

• Water tank on top roofing

• Provide enough water supply

• Provide pressure

• Same type of flush water

and freshwater but distinct

• Disperse water in order to

room by simply gravity

• Pressure lowering valve is definitely

needed surplus 10 storeys

Water storage space

Estimation of cold water

storage

• Office with out canteen sama dengan 35L

• 6 office buildings each floor

• 21 storeys

• 35 by 6 by 26 sama dengan 5460L

Drinking water storage

• Photo considered on case building

• Volume of freshwater tank:

1600L

• Amount of flush drinking water tank:

1600L

• Why the volume differs to

the estimation?

Water storage

• Only one sink consume refreshing

water in each workplace

• Analyzed flow level of drinking water tap:

~10 L/min

• Recommend rub hand intended for

~30second

• Assume whole building

washing hand by same period:

26 By 6 X 5 sama dengan 780L

Tube sizing

We should calculate the

pipe size again since:

1 . Diagram has shown

restricted galvanised metallic

pipe size.

2 . Fresh water pipe of

whole building changed

to copper water pipe now

7

9

your five

6

a few

3

three or more

6

3

4

3

10

almost 8

5

several

3

four

3

several

3

a few

2

you

1

you

Pipe dimension

At decrease floor,

normal water demand is definitely

less, more compact pipe

is necessary

1

Bathroom for shop

tenant

Copper mineral

pipe

With reference to BSEW806: Portion 3

Launching Unit(LU) of Water Pull off Point (Table 2)

Washbasin

you

,

Taps

5

As water piping pipe is utilized for water supply, therefore Desk 3. a couple of is to be utilized for the estimation of water line size

Water pipe Section

∑ LU

weil 1mm

one particular

1

12

2

1+1=2

12

three or more

1

12

4

1+1=2

12

your five

5

15

6

26x(1+1)=52

35

7

26x1 & 1 +5 =32

28

8

26x1 + a couple of +5 =33

28

being unfaithful

2x [26 x(1+1)]= 104

35

twelve

26x1+1 +5 + 2x [26 x(1+1)]sama dengan 136

thirty-five

Pipe supplies

Pipe materials

• To get fresh water –

copper

• For flushing - PVC

Pipe material

• Copper pipes (BS EN 1057)

• Underhand capability

• Good formability

• Good corrosion level of resistance

• Hi-strength & durability to withstand exterior loading • Ease of jointing (compression & capillary joints)

• Smooth surface: low resistance to drinking water flow

Tube material- PVC...