District Cooling System (DCS)

DISTRICT COOLING SYSTEM (DCS)

What is DCS? 

Large in scale

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centralized cooling system

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distributes cooling capacity from a central source to multiple buildings for the cooling purpose of the airconditioning system

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through underground chilled water pipe network

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Water-cooled(seawater or fresh water)

Mechanism of DCS

Produce cooling capacity in the form of chilled water or other medium

distributes the cooling capacity (chilled water) to user buildings through underground pipes

process cooling for for airconditioning purpose at each heat exchanger in individual building

Mechanism of DCS(2)

Model of DCS in EMSD(overview)

Model of DCS in EMSD(Detail)

Model of DCS in EMSD(Detail)

Model of DCS in EMSD(Detail)

Demonstration video

Advantages of DCS

Better Utilization of Building Space

Benefits to the District Environment

Savings in Electricity Consumption

air-cooled A/C System:35% less water-cooled A/C system using cooling towers:20% less

Limitations of DCS Stricter infrastructure requirements

Higher capital investment

Longer implementation time

Real case of DCS in Hong Kong(Existed) 

Hong Kong Science Park Phase 2

Real case of DCS in Hong Kong(Ongoing) 

Kai Tak NDA

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First development area using DCS

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Key infrastructure :

-Northern DCS Plant -Southern DCS Plant & a dffd seawater Pump Room

Detail of the project Cooling Capacity : 284 MW (About 81,000 RT) (Northern DCS : 46,000 RT) (Southern DCS : 35,000 RT) 

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To serve all public and private non-domestic developments Electricity Saving up to 85 million kWh/yr(reduction of 59,500 tonnes of carbon dioxide emission)