5
TECHNICAL STUDIES
5.1 ADVANCED BUILDING PERFORMANCE
5.1.1 ACTIVE STRATEGIES
5.1.1.1 BIPV solar power harvesting system
BIPV system
The BIPV glass are made of 2 sheets of tempered glass with photovoltaic solar cells sandwiched in between. Amount of light allowed depends on the distance between each cells are encapsulated. The encapsulate material is EVA (Ethyl Vinyl Acetate) or PVB (Polyvinyl Butyral) material traditionally used for laminated safety glass for its advantages in robustness. It is 35% more expensive than poly crystalline solar panel module. The energy harvested is use for lighting and vertical transportation.
5.1.1.2 Rainwater Harvesting System
Rainwater harvesting system
Rainwater harvesting system installed as there are huge area of greenery proposed for Startup. The rainwater harvested is mainly used for toilet flushing and landscape irrigation. There are 2 system of rainwater harvesting. First system is water collected at the top most roof directly channel to the rainwater harvesting roof tank. Second system is water collected at green roof, metal roof and flat roof are channeled to the rainwater harvesting tank in basement before pump to the rainwater harvesting roof tank. Then rainwater collected at roof tank is distributed to toilet flushing and landscape irrigation through gravity. Excessive rainwater then channel to On Site Detention (OSD) tank before release to drainage system to prevent flood.
5.2 PASSIVE STRATEGIES
5.2.1 STACK EFFECT
Stack effect as passive cooling method
Due to the issue of global warming and green house effect, the awareness toward sustainable passive design is inevitable. Courtyard or sculpture garden has been introduced in the centre of space to allow penetration of day lighting and cooling through stack effect.
5.2.2 CROSS VENTILATION
Cross ventilation system
On the other hand, planter box with plants to grow outside the office pods help to filter the cold air when windows are opened, cross ventilation also happens to remove the heat.
5.3 BUILDING SERVICES
5.3.1 ELECTRICAL DISTRIBUTION
Electrical Distribution System
Location of TNB substation
A TNB double chamber attached sub-station is located at service zone on the ground floor (refer to pag12 of Buku Panduan Piawai Rekabentuk Pencawang Elektrik for detail of the substation type). It is accessible from the service lane. Net metering is installed at meter room to sell the electricity back to the grid from the electricity generated from BIPV roof (see section 4.3.2 BIPV system for more detail).
5.3.2 TELECOMMUNICATION SERVICE
Location of Data Room
The Data room is located on service zone at ground floor. It is naturally ventilated. The telecommunication cables from main ICT manhole are connected to data room. From the data room, the cables linked to the computers every floor.
5.3.3 WATER DISTRIBUTION SYSTEM
Water distribution system
Location of suction tank, pump room, hose reel tank, and fire pump room.
The Data room is located on service zone at ground floor. It is naturally ventilated. The telecommunication cables from main ICT manhole are connected to data room. From the data room, the cables linked to the computers every floor.
5.3.4 VEHICLE PARKING
Visitors' car parking
Motorcycle parking
Car and motorcycle parking at Basement 1
Car parking at Basement 2
The car and motorcycle parking provided is sufficient as the number provided exceed required. The car parking bays provided are 5m long and 2.5m wide. The motorcycle parking bays provided are 1.5m long and 0.9m wide.
5.3.4 FIRE PROTECTION SYSTEM
Fire protection system
Fire fighting ground floor plan
Active fire fighting system for Startup include: fire hydrant, hose reel system, portable fire extinguisher, fire alarm system and fire detecting system. According to UBBL, Dry riser is required for building which the topmost floor is more than 18.3m but less than 30.5m above fire appliance area. According to UBBL, hose reel should be placed within 30m coverage and be provided for every 800sqm of usable floor space.