Our Sustainable Practices

  Case Study Two ˇV New Territories South   Regional Police Headquarters (NTS RPH)

The Project involved the construction of a 16-storey office-cum-operational base building for the NTS Regional Formation of Hong Kong Police. The objectives of the project not only include satisfying the User's specifications and the timing for completion, but also involve the integration of green features into the design of the building such that a healthy work environment and long-term cost-effective operation for end-Users of the NTS RPH can be achieved. The NTS RPH project is accredited with the ˇ§Platinumˇ¨ standard by the HK-BEAM.

Some special features include:

 

 

 
1. Sustainable Planning
 
  • Landscaped areas on G/F, 6/F and 13/F are planted with trees and bushes, and incorporated with other landscaping features in order to maximise the green areas within this Police development.
  • Less dumping due to the adoption of pre-cast structural systems.
  • Designated staff access near MTR station to encourage use of public transport.

2. Architectural Design
 
  • Curtain wall system with low e-coated insulating glass unit is adopted and which is integrated with aerofoil-profiled sun-shading devices to achieve an excellent Overall Thermal Transfer Value (OTTV). Additionally, the use of non-reflective glass has added benefits of reducing solar heat gain and undesirable glare from sunlight, and maintaining high degree of visual transparency. Thermal comfort of the peripheral building occupants is further enhanced by the use of ˇ§ventilated curtain window systemˇ¨ and adjustable built-in blinds integrated in the curtain wall system.
  • Rectangular block on irregular site to maximise space efficiency.
  • Podium block with car parks and plant rooms are used as the noise barrier for the office lower block, which screen out traffic noise from Texaco Road North.
  • Short sides of offices floors facing east and west to further cut down solar heat gain.
  • Building block disposition to face scenic views provided by the adjacent greeneries.
  • The use of prefabricated building components to ensure material quality and workmanship during on-site installation, examples of utilisation include curtain wall system, aluminium curved roof, demountable partition system and proprietary metal doors etc..

3. Energy Conservation
 
  • Good Overall Thermal Transfer Value (OTTV) (down to 14.69 W/m2 for tower).
  • Compliance with the Code of Practice for Energy Efficiency of Air-conditioning, Lighting, Electrical and Lift and Escalator Installations.
  • High Coefficient of Performance (COP) and Non-standard Part Load Value (NPLV) of the chiller plant.
  • Use of heat recovery chiller/heat-pump as energy efficient heat source for pre-heating domestic hot water.
  • Use of freshwater cooling tower plant for heat rejection from the refrigeration plant.
  • Provision of heat wheel for waste heat reclaim and economiser control for free cooling adopted in PAUs.
  • The use of ventilated curtain wall window at the East & West façades of the building.
  • Provision of sufficient energy meters for energy auditing.
4. Environment, Health & Hygiene
 
  • Adoption of natural ventilation in the car park areas with assistance of the jet fans.
  • Use of inclined laminar flow system and bag-in/ bag-out filter changing device in the indoor shooting range.
  • Air Quality
    • Use of CO2 sensors control fresh air supply.
    • Use of high efficiency filter and UV sterilising light in AHUs to remove the air contaminants in outdoor air and return air.
  • Reuse of bleed-off water from the cooling tower for flushing purpose.