Higher capacity, efficient cooling – and low running costs
The board wanted to increase the capacity of its Aalst pumping station from 8,000 m3/hour to 13,000 m3/hour to improve wastewater management and water quality. The challenges for the board were to have an efficient cooling system with low running costs, and to be able to use a heat exchanger constructed round the sewage pipes. Thanks to a 17-year history of working with Emotron and CG Drives, the board was confident that CG could execute the installation professionally. The unique – and vandal-proof – solution features four CG liquid-cooled drives connected directly to the heat exchanger.
CG drives entails energy losses
The main benefit is that they have achieved the desired capacity increase with a simple installation, using CG's direct liquid-cooled drives. The system also has built-in redundancy, with four pumps to ensure constant availability of the higher capacity.
The board makes major savings on energy by using liquid- instead of air-cooled drives. Air-cooling four CG Drives & Automation 400-kW drives entails energy losses of 32 kW, whereas the board can now use a small 0.55-kW pump.
Waterschap De Dommel, Netherlands
Dramatically increase pumping capacity using an efficient cooling system with low running costs
Simple installation using four direct liquid-cooled CG drives, each 400 kW
- Savings on energy
- Financial savings
- Higher capacity