Weichai Power
Fouling in the dynamometer and air compressor cooling water systems reduces cooling efficiency, affecting test performance and air supply stability.

Issue
Situation before processing
Long-term operation of the dynamometer and air compressor cooling water circuits leads to scaling, reduced cooling efficiency, elevated exhaust temperatures, and compromised test condition stability.
Instructions
Installation Location & Plan
Install a variable-frequency resonance water treatment device on the circulating water supply main header, configured with coil sets according to pipe diameter to cover both the dynamometer and air compressor cooling branches.
Acceptance and Operational Performance
After operation, new scale no longer adheres, existing scale gradually thins, cooling water temperature difference stabilizes, and acid cleaning frequency is reduced.
Note: Project outcomes depend on water quality, operating conditions, and management practices. This case study illustrates the approach for similar systems only and does not constitute a guarantee of results for specific projects.

