DISTRICT COOLING
District Cooling is a fundamental aspect of utility in order to increase sustainability of an urban development. It is the backbone of a green and smart city. The system relies on a centralized cooling plant which supplies thermal cooling energy to connected buildings within its network via underground Chilled Water (CHW) pipelines. Each customer building is equipped with Energy Transfer Station which allows the cooling energy to be transferred from the CHW pipe to the buildings internal piping through a Heat Exchanger. The warm heat transferred from the buildings will then be returned to the District Cooling Plant (DCP). The CHW served to customers are at 6 degC and returned to the DCP at 13 degC.
This setup is suitable for high density developments such as university campuses, government buildings, business districts, industrial area, commercial and retail buildings, hotels and residential towers, airports, etc. The usual minimum requirement for a connection application is 20,000 sqft of cooling area which is equivalent to 100 RT (Refrigerant Tonne).
MEGAJANA PLANT
Megajana provides District Cooling System services to buildings in Cyberjaya, a chilled water service for the centralised air-conditioning system in our buildings. In return, it reduces energy consumption, lowers the operational cost of buildings and ensures environmental sustainability which supports the idea of making Cyberjaya a green city.
2 District Cooling Plants
2
District Cooling Plants
Cooling Capacity 22,000 RT
Total Cooling Capacity
22,000 RT
49 Energy Transfer Stations
49
Energy Transfer Stations
Global COP 3.67
Global COP
3.67
1 Satellite Cooling Plant
1
Satellite Cooling Plant
Total CHW Network 2 x 6km
Total CHW Network
2 x 6km
5 Main CHW Pipeline Branches
5
Main CHW Pipeline Branches
Peak Demand 16,000 RT
Peak Demand
16,000 RT
Thermal Energy Storage 97,500 RTh
Thermal Energy Storage
97,500 RTh
15 Chillers
15
Chillers
Global Efficiency 0.96 kW/ton
Global Efficiency
0.96 kW/ton
Total CHW Volume 30,451 m3
Total CHW Volume
30,451 m3
BENEFITS OF COOLING PLANT
When compared with traditional cooling technologies, district cooling offers the following advantages to end-users:
Minimal SPACE required
Minimal SPACE required
Lower operating COST
Lower operating COST
Higher EFFICIENCY
Higher EFFICIENCY
No HEALTH risk to tenants
No HEALTH risk to tenants
Fast track and EASY installation
Fast track and EASY installation
Reduced CO2 emission
Reduced CO2 emission
Reliable 24/7 support
Reliable 24/7 support
Lower noise for tenants’ COMFORT
Lower noise for tenants’ COMFORT
20% savings in UTILITY charges
20% savings in UTILITY charges
Lower INITIAL investment
Lower INITIAL investment
Zero HEAVY maintenance
Zero HEAVY maintenance
GREEN Building Index Contributor
GREEN Building Index (GBI) Contributor