Performance study of drag-reducing fluid in water system of central air conditioning

With an experiment, tests performance of cetyltrimethyl ammonium chloride drag-reducing fluid in water system. Analyses the influence of temperature, concentration and mixture ratio on the performance. Measures velocity field of the fluid with a phase Doppler anemometry (PDA). The result shows that the drag reducing rate is up to 67% after adding drag-reducing agent into the fluid and it has remarkable energy saving effect.