Energy Saving Comparison
Compared with conventional machine room layout, BROAD packaged pumpset system reduces the rated power demand by 50~70%, and the operating electricity consumption by 70~85% (the electricity for pumpset only amounts to 2~5% of the rated cooling capacity).
Examples on power consumption comparison
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BY50 (pumpset for 582kW / 165Rt chillers)
| Power consuming parts | Conventional machine room power demand | Packaged pumpset power demand | Operating power consumption |
|---|---|---|---|
| Cooling water pump | 30 kW | 7.5 kW | 2~7.5 kW |
| Cooling tower fan | 11 kW | 11 kW | 3~11 kW |
| Chilled/heating water pump | 22 kW | 7.5 kW | 7.5 kW |
| Total electricity/cooling capacity | 63 kW (10.8%) | 26 kW (4.47%) | 17 kW (annual, 2.92%) |
| Annual operating consumption | 190 MWh | 52 MWh (power saving is 79%) | |
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BY300 (pumpset for 3489kW/992Rt chillers)
| Power consuming parts | Conventional machine room power demand | Packaged pumpset power demand | Operating power consumption |
|---|---|---|---|
| Cooling water pump | 180 kW | 44 kW | 11~44 kW |
| Cooling tower fan | 37 kW | 37 kW | 6~37 kW |
| Chilled/heating water pump | 110 kW | 60 kW | 30~60 kW |
| Total electricity/cooling capacity | 327 kW (9.4%) | 141 kW (4.04%) | 100 kW (annual, 2.86%) |
| Annual operating consumption | 1000 MWh | 300 MWh (power saving is 76%) | |
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BY1000 (pumpset for 11630kW/3307Rt chillers)
| Power consuming parts | Conventional machine room power demand | Packaged pumpset power demand | Operating power consumption |
|---|---|---|---|
| Cooling water pump | 550 kW | 180 kW | 30~180 kW |
| Cooling tower fan | 110 kW | 110 kW | 20~110 kW |
| Chilled/heating water pump | 440 kW | 180 kW | 90~180 kW |
| Total electricity/cooling capacity | 1100 kW (9.5%) | 470 kW (4.04%) | 250 kW (annual, 2.15%) |
| Annual operating consumption | 3300 MWh | 750 MWh (power saving is 82%) | |
Why electricity saving ?
Saving from design:
- Many innovations reduce the resistance from filters, valves and piping to almost zero.
- Specially designed pumps optimize head and flow rate.
Saving from operation:
- BROAD leads the world in inverter control system design and operation. Standard designs incorporate inverter-controlled cooling water pump(s) and cooling tower fan(s) which are automatically adjusted according to load and ambient temperature.
- Two pumps combined or separate operation by software analyzer.
- Actual power consumption during operation is 30~50% of the rated design.