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Building Owner
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Heraeus Limited Hong Kong
| | Building/Project Name |
Heraeus Technology Centre (HTC) - Fanling
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Systems |
HVAC - Waterside Air Conditioning System
Building Automation /Management System
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Building Types |
Commercial - Office
Industrial
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Description of the building:
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Heraeus Technology Centre is a precious metal manufacturing and refinery factory. Offices, laboratory, production areas and warehouses are located inside the building with total area about 6000m2 and 120 employees. |
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Retrofitted initiative:
- Converted the air-cooled chiller to high-efficiency Plate-tube evaporative water-cooled chiller.
- Installed the auto-cleaning devices which is physical water treatment and auto-cleaning system for condensers of water-cooled chillers.
- Installed a real time monitoring and control system to optimize the chiller plant operation efficiency.
Observed benefits other than energy saving:
- Real time information and knowing the chiller plant operations
- More information for chiller monitoring and reporting
- Shorten start up time of chiller plant operation
- More environmental friendly as no chemical dosing for water cooling tower
General observations of the retrofitting project:
- HVAC system retrofit have not affected the factory operation
- Easy to installation, just plug and play, shorten retrofitting period and save retrofitting materials as well
- Easy to maintenance and reduce maintenance resources in overall plant operations
- Standard retrofitting initiatives with proven and straightforward technologies
Other information:
| Cost |
Saving |
| Total cost: |
HKD 2.39 million |
Total savings/year: |
HKD 1.02 million |
| Cost breakdown: |
Chiller Plant: HKD 0.91 million
Mechanical and Electrical work: HKD 1.48 million
(CLP Eco Building Fund supported: HKD 0.36 million) |
Savings/year breakdown: |
>45% reduction in energy consumption compared to the predecessors |
| Payback: |
2 years |
| Name of consultant and contractors: |
Subsidy/ Funding |
Consultant: Ir. W. Man Luk - Lee Yu Kee Technology Ltd.
Contractor: Ecool Air Co Ltd. |
The project is supported by: |
CLP Eco Building Fund |
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Conversion of air-cooled to water-cooled chiller plant
Installation of auto-cleaning devices for condensers of water-cooled chillers
Using advance control algorithm to improve energy efficiency and operational performance for major equipment and building services systems
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