Effect of Fouling Factor of Cooling Capacity
Hope Deepblue, as an expert of LiBr absorption chiller and LiBr absorption heat pump, has abundant experience with these units. The long life span our units is related to our professional maintenance services. With the operating time of these units increasingly, there is inevitably an increase fouling in the pipeline, which will affect the efficiency of our units. So what kind of influence does the fouling have on these units cooling capacity?
LiBr absorption chiller running for a period of time, the inner wall of the heat exchange tube and the outer wall gradually formed a layer of dirt, the impact of dirt commonly used fouling factor to measure. The larger the fouling factor is, the larger the thermal resistance is, the worse the heat transfer performance is, and the cooling capacity of the LiBr absorption chiller decreases.
Unit in the factory test, the water side of the pipe is cleaner, according to our standards, this time the fouling factor is set at 0.043m²-C/kW, while the sample of the water side of the pipe and the cooling capacity indicated in the sample usually refers to the water side of the fouling factor of 0.086m²-C/kW when the value. Therefore, the cooling capacity of a new unit at the factory test is generally higher than the cooling capacity indicated in the sample.
The formation of water-side fouling depends on the quality of the water flowing in the tubes. It can be seen that changes in water quality have a large impact on the cooling capacity. In particular, the water quality of the cooling water, in addition to fouling the unit, but also corrosion of the unit, affecting the normal operation and service life of the unit. Especially in direct-fired absorption chiller, cold and hot water in the same pipeline, the water temperature increases, more so that the generation of dirt intensified.
Post time: May-30-2024
