|
Building Owner
|
Hang Lung Properties Limited
|
Application of insulated coating / painting at external wall and roof
| | Building/Project Name |
GALA PLACE
| | Systems |
Opaque Wall and Roof System
| | Building Types |
Commercial - Retail
|
Description of the building:
Located at the junction of Dundas Street and Nathan Road in Mong Kok, GALA PLACE houses a diverse array of merchants and attracts high footfall. In addition to the 4500-plus-square-foot Starbucks thematic store, and the new Foot Locker Power Store, which will span approximately 20,000 square feet, it also showcases an expertly curated portfolio of diversified services and products.
Retrofitted initiative:
With the technology of i2Cool passive radiative cooling, the cooler, called iPaint reflects most of the solar heat (>95% reflectivity) while effectively emitting thermal energy as mid-infrared (>95% emissivity) to the cold universe. Since the earth’s atmosphere is transparent to the mid-infrared radiation, the heat emitted by the cooler can pass through the atmosphere and be absorbed by the cold outer space.
The coating method of iPaint is very similar to emulsion paint, leading to easy application and low cost. By coating the roof of the equipment room in GALA PLACE with iPaint, the effect of “electricity-free cooling” can be achieved without energy input or refrigerant, resulting in significant energy saving for air cooling.
Observed benefits other than energy saving:
iPaint also offers the embellishment effect for the GALA PLACE rooftop, from a regular grey-coloured concrete surface to a brand new white-coloured area.
General observations of the retrofitting project:
The temperature of the bare roof measures 62.1oC of surface temperature via IR camera under the direct sunlight at noon; after applying iPaint, the temperature of the roof surface drops down to 31.8oC, without any energy input; With this electricity-free cooling effect, the cooling load and energy consumption of the HVAC system in the building can be reduced. Based on the measured data using power meter provided by the building owner, using 1 square meter of iPaint helps reduce approximately 0.39 kWh electricity consumption per hour for the building.
Other information:
Gala Place with iPaint Schematic diagram of surface temperature
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Gala Place iPaint Implementation
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| Cost |
Saving |
| Total cost: |
HKD 180 / square meter |
Total savings/year: |
~ HKD 2,340 / square meter |
| Cost breakdown: |
HKD 80 / square meter for material cost
HKD 100 / square meter for application cost |
Payback: |
1 month |
| Subsidy/ Funding |
| The project is supported by: |
HK Tech 300, City University of Hong Kong (CityU)
Incubation, Hong Kong Science and Technology Park (HKSTP)
|
| |
|
Application of insulated coating / painting at external wall and roof
|
|
|
Building Owner
|
Hang Lung Properties Limited
| | Building/Project Name |
GALA PLACE
| |
Systems |
Opaque Wall and Roof System
| |
Building Types |
Commercial - Retail
|
Description of the building:
|
| Located at the junction of Dundas Street and Nathan Road in Mong Kok, GALA PLACE houses a diverse array of merchants and attracts high footfall. In addition to the 4500-plus-square-foot Starbucks thematic store, and the new Foot Locker Power Store, which will span approximately 20,000 square feet, it also showcases an expertly curated portfolio of diversified services and products.
Retrofitted initiative:
With the technology of i2Cool passive radiative cooling, the cooler, called iPaint reflects most of the solar heat (>95% reflectivity) while effectively emitting thermal energy as mid-infrared (>95% emissivity) to the cold universe. Since the earth’s atmosphere is transparent to the mid-infrared radiation, the heat emitted by the cooler can pass through the atmosphere and be absorbed by the cold outer space.
The coating method of iPaint is very similar to emulsion paint, leading to easy application and low cost. By coating the roof of the equipment room in GALA PLACE with iPaint, the effect of “electricity-free cooling” can be achieved without energy input or refrigerant, resulting in significant energy saving for air cooling.
Observed benefits other than energy saving:
iPaint also offers the embellishment effect for the GALA PLACE rooftop, from a regular grey-coloured concrete surface to a brand new white-coloured area.
General observations of the retrofitting project:
The temperature of the bare roof measures 62.1oC of surface temperature via IR camera under the direct sunlight at noon; after applying iPaint, the temperature of the roof surface drops down to 31.8oC, without any energy input; With this electricity-free cooling effect, the cooling load and energy consumption of the HVAC system in the building can be reduced. Based on the measured data using power meter provided by the building owner, using 1 square meter of iPaint helps reduce approximately 0.39 kWh electricity consumption per hour for the building.
Other information:
Gala Place with iPaint Schematic diagram of surface temperature
Gala Place iPaint Implementation
| Cost |
Saving |
| Total cost: |
HKD 180 / square meter |
Total savings/year: |
~ HKD 2,340 / square meter |
| Cost breakdown: |
HKD 80 / square meter for material cost
HKD 100 / square meter for application cost |
Payback: |
1 month |
| Subsidy/ Funding |
| The project is supported by: |
HK Tech 300, City University of Hong Kong (CityU)
Incubation, Hong Kong Science and Technology Park (HKSTP)
|
| |
|
Application of insulated coating / painting at external wall and roof
|
|
|
