|
Building Owner
|
Times Square Limited
|
Application of insulated coating / painting at external pipework and duckwork
| | Building/Project Name |
Times Square
| | Systems |
HVAC - external pipework and ductwork
| | Building Types |
Commercial - Office
|
Description of the building:
- A commercial-retail complex with 943,000 square feet of retail space, over one million square feet of top quality Grade A office space, and 700 car parking spaces.
- Uses centralized MVAC system which consists of the following equipment:
- 3 H.V. chillers (2500 TR each)
- 2 L.V. chillers (1000 TR each)
- 1 L.V. chiller (600 TR)
- 10 cooling towers on Roofs of Tower 1 and 2
- AHUs on office floors and retail floors
- System monitored and controlled by BMS
Retrofitted initiative:
Reducing the temperature of condenser water before entering cooling tower and therefore that of condenser water leaving cooling tower as well. In order to achieve this, "passive radiative cooling paint" is applied on the condenser water inlet pipe of the cooling tower.
Observed benefits other than energy saving:
- Simple application, and low capital investment.
- Prolong service life of cooling towers against upgrading for meeting the peak demand in hot summer.
General observations of the retrofitting project:
- The effect of free cooling of condenser water by coating branching condenser water pipes with the radiative cooling paint is less significant in cloudy / rainy days.
- Coating the radiative cooling paint on Cooling Towers’ Fibre Casing and main Condenser Water Main could further improve the cooling effect on condenser water.
- Optimizing Cooling Tower performance could be achieved through integrating the radiative cooling paint with Artificial Intelligence with due consideration of other factors like wind direction and speed.
Other information:
| Cost |
Saving |
| Total cost: |
HKD 85,000
(Exclude CT#4 as the control) |
Total savings/year: |
80,000 ~ 140,000 kWh
(subject to weather condition) |
| Cost breakdown: |
HKD 57,000 (material cost)
HKD 28,000 (labour cost – no high-level work)
Remark : Cost of Measurement and verification is excluded |
Savings/year breakdown: |
HKD 160,000 ~ 280,000
(subject to weather condition) |
| Payback: |
4 ~ 6 months |
| Name of the consultant and contractor |
Consultant:
EnerRight Intelligent Limited
BIM / GIS Expert:
Moebius Innovation Limited
Contractor:
S&S Air Conditioner Limited |
| Awards |
| Awards received by the project: |
• AIIB Excellent Intelligent Green Building 2023 (Renovation Award) organized by AIIB – Winner
• Hong Kong OpenBIM / OpenGIS Awards 2023 (Technology Solution Category) organized by HKABAEIMA and Building Smart HK – Honorable Mention
• Energy Awards 2023 organized by emap – Finalist |
| |
|
Application of insulated coating / painting at external pipework and duckwork
|
|
|
Building Owner
|
Times Square Limited
| | Building/Project Name |
Times Square
| |
Systems |
HVAC - external pipework and ductwork
| |
Building Types |
Commercial - Office
|
Description of the building:
|
|
- A commercial-retail complex with 943,000 square feet of retail space, over one million square feet of top quality Grade A office space, and 700 car parking spaces.
- Uses centralized MVAC system which consists of the following equipment:
- 3 H.V. chillers (2500 TR each)
- 2 L.V. chillers (1000 TR each)
- 1 L.V. chiller (600 TR)
- 10 cooling towers on Roofs of Tower 1 and 2
- AHUs on office floors and retail floors
- System monitored and controlled by BMS
Retrofitted initiative:
Reducing the temperature of condenser water before entering cooling tower and therefore that of condenser water leaving cooling tower as well. In order to achieve this, "passive radiative cooling paint" is applied on the condenser water inlet pipe of the cooling tower.
Observed benefits other than energy saving:
- Simple application, and low capital investment.
- Prolong service life of cooling towers against upgrading for meeting the peak demand in hot summer.
General observations of the retrofitting project:
- The effect of free cooling of condenser water by coating branching condenser water pipes with the radiative cooling paint is less significant in cloudy / rainy days.
- Coating the radiative cooling paint on Cooling Towers’ Fibre Casing and main Condenser Water Main could further improve the cooling effect on condenser water.
- Optimizing Cooling Tower performance could be achieved through integrating the radiative cooling paint with Artificial Intelligence with due consideration of other factors like wind direction and speed.
Other information:
| Cost |
Saving |
| Total cost: |
HKD 85,000
(Exclude CT#4 as the control) |
Total savings/year: |
80,000 ~ 140,000 kWh
(subject to weather condition) |
| Cost breakdown: |
HKD 57,000 (material cost)
HKD 28,000 (labour cost – no high-level work)
Remark : Cost of Measurement and verification is excluded |
Savings/year breakdown: |
HKD 160,000 ~ 280,000
(subject to weather condition) |
| Payback: |
4 ~ 6 months |
| Name of the consultant and contractor |
Consultant:
EnerRight Intelligent Limited
BIM / GIS Expert:
Moebius Innovation Limited
Contractor:
S&S Air Conditioner Limited |
| Awards |
| Awards received by the project: |
• AIIB Excellent Intelligent Green Building 2023 (Renovation Award) organized by AIIB – Winner
• Hong Kong OpenBIM / OpenGIS Awards 2023 (Technology Solution Category) organized by HKABAEIMA and Building Smart HK – Honorable Mention
• Energy Awards 2023 organized by emap – Finalist |
| |
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Application of insulated coating / painting at external pipework and duckwork
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