building services ii
DESCRIPTION
.TRANSCRIPT
Building Services IICase Study Presentation
Name Student IDYam Yih Hwan 0305861
Low Rong Tzuoo 0304924Ng Jun Keat 0314368
Dixon Cheong 0310356Adrian Ng Kar Chun 0314516
Wong Ha Shiong 0309640
What is Building service?
One of a crucial role in a building Building service is responsible for the design of :
Installation Operation Monitoring of the mechanical, electrical and public health
systems Safety, Comfortable Environmentally Friendly Operation
Influence the architecture of a building Play a significant role on the sustainability and
energy demand of a building
The Summit, Subang USJ
The Summit located at Subang Jaya, USJ Purpose of choosing The Summit as our case
study: Locate all services within the building Services in the building quite old Low maintenance The Summit used to be popular
place for youngster & families Less and less popular due to
the poor management of the building
Why is building services so important?
Building services is ‘what makes a building alive’Makes the building safe and aliveWithout building services, we won’t have lighting,
heat, escalator, lift, acoustics, plumbing, power supply, the security and safety system in a building
Without all this it will only be a cold, dark and uninhabitable building
First impression of The Summit!
Safety system are spoiled and poorly maintained Examples are the emergency phone and the fire
escape door which is allocated near the stairsThe environment in the building is dark and creepyThe population is lesser compared to other
shopping complex
How can The Summit attract more shoppers?
Improve the lighting to be more brighterAdd more interior decoration around to make the
building look more livelyKeep the services updated by maintaining it
regularly
Natural vs. Mechanical
During our visit to The Summit, we found out that both natural and mechanical systems of ventilation are implemented
In the washrooms, there are 3 openings of windows to provide ventilation. There is also a fan blower inside, which is of the mechanical system.
Split Units
Air doors are installed at every automatic sliding door at The Summit To prevent loss of cool air To prevent hot air from coming in
Condensers are normally located around the basement level or the rooftop.
Centralized System
In the main area or lobby of the building, centralized system and air-conditioning is installed.
With this system, fresh or cold air is transfer through ducting to various part of the building.
Water Chiller System
The cooling tower is located at the top of the building, along with other services, for examples; piping, split units & electrical distributor
Diffusers
Diffusers are where the air comes out and is discharged into the rooms.
In The Summit, 3 types of diffusers: Linear Diffuser
It is used in open plan rooms and it will hardly interfere with the pattern of the ceiling.
Its direction of air discharge can bechanged to suit the room conditions.
It is suitable with high air velocity and it has high induction slot can have rapid decay of air velocity and temperature.
Diffusers
Cone Diffuser Its shape can sometimes be square to match pattern of
the ceiling and its inner cone can be lowered or raised to result in different flow pattern.
Diffusers
Side Wall Inlet Diffuser It is used when there is no false ceiling. For every inlet
there will be a grill. The air discharge can be controlled by sets of louvers in
vertical or horizontal plane. The flow pattern can be varied according to room size, velocity and aspect ratio.
Fire Protection
• Active fire protection • Method requires mechanical, electric or electronic
activation• Manual or automatic fire protection system• Eg. fire alarms, detectors, wet and dry risers, hose reels,
carbon dioxide fixed installation• Passive fire protection• An integral component of the structural fire protection and
fire safety in a building.• Contain fires or preventing the fire from spreading• Eg. fire-resistant walls, floors, and doors, etc.
Active Fire Protection
Fire ExtinguisherIntended for initial outbreak of fireFour different types of fire extinguishers
Active Fire Protection
Hose ReelIntended for occupant to use during early stage of
fireLocated at every escape routes19mm diameter25m in length
Active Fire Protection
SprinklerDetect, control, extinguish fireWarn the occupants of the occurrence of fireEquipped with control valve to deliver the pressure
of the sprinkler water
Automatic fire alarm system Manual fire alarm system
Automatically initiates and activates the alarm when it detects fire
Eg. fire detection system
Provides an alarm to be activated only when it is switch on by someone
Eg. Manual call point
Active Fire Protection
Passive Fire Protection
Fire-resistant doorMainly for fire escape doorsShould not be obstructed by any objects
Staircase Fireman Lift
Staircase were properly designed
The dimension of the threads and risers were constructed consistently
No winders built Length of the landing is not
less than the width
The fireman lift is indicated
Passive Fire Protection
Problems The fire extinguishers were
not send for maintenance Maintenance has to be
done to ensure that the extinguisher is still functional
That the manual fire alarm is ‘not in use’.
Problems
The fire doors are not in good conditionFor example, the quality is degraded, the doorknob
is missing, and the doors should always be closed and should not be obstructed by any object.
Problems
Their voice communication systems are not in suitable conditions and not maintenance were carried out.
Vertical Transportation Systems
Population of The Summit around 5000+- Area of The Summit
1.2 million square feet; it is a commercial building consists of 9 floors including basements
Only one bus stop in front of The SummitThe Summit poor in position of building in
relation to public transport services, which means it has low passenger peaks during arrival hours.
Lift
The Summit used hydrauliclifts
Total numbers of 5 passengerand 6 fire’s man lifts on every floor
Lift Car
• Capacity of the lift car is 20 passengers
• Lift entrances about 1160mm wide with 2 pieces of doors
• 50 seconds for door closing time with 1160mm width doors
• Passenger transfer time at 50 seconds in and out
Problems of the Lift
• 5 passenger and 6 fire’s man liftson every floor, but only one passenger lift is working
• The Summit used hydraulic lifts, andit supposed to be low vibration and noise, but it causes a lot of vibration and noise during the ride
• Less Maintenance
Escalator
• Two types of escalator:• One way traffic of single bank
with interrupted traffic in one direction on every floor
Escalator
Two-way traffic parallel located in the cinema
Electricity Supply Systems
The main switch boards are located around the building examples are at the rooftop, at the ground floor and the basement parking
The pictures above show the different location of the main switch board
Electricity Supply Systems
Function of the main switch board: act as an assembly of switches and circuit protection
devices from which power is distributed It is totally enclosed,
sheet steel fabricated Distributes large incoming supply
into smaller, easily controlled parcel
Recommendation for Fire Protections
The Summit Recommendation• Nearest fire hydrant is 51 meter
away.• A good one should be 6 meter
away.• Not more than 30 m away from
the building.
• 19mm diameter hose reel. • 25mm diameter hose reel.
Recommendation for Fire Protections
• Hose reel length is 25 meter. • A good one should be 30 meter length.
• Smoke detector system.• The number of detectors should
not be less than 1 in 100m².
• Heat detector system.• The number of detectors fitted
should not be less than 1 in 50m²
Recommendation for Vertical Transportation
The Summit Recommendation
Hydraulic Lift Electric Lift
• Speed is slower. • Speed is faster.
• The pump works against gravity to push the car and its contents upwards.
• Movement is depending on the electrical power.
• Energy used to lift the elevator does not get recovered on the trip going down, it is completely lost.
• Do not use as much energy due to the counterweight.