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Experiment on thermal stratification in a rectangular storage tank with discal water diffusers.

[In Chinese. / En chinois.]

Author(s) : ZHOU Z., XIAO R., FENG Z.

Type of article: Article

Summary

A chilled water storage system using discal diffusers and a rectangular storage tank was set up. Experiments in charging mode and static mode of operation were carried out at different supply and return water temperatures, and flow rates. The result shows that the thermal stratification was mainly affected by the outlet flow rate of the diffusers when the physical properties, the geometrical parameters and running conditions were almost fixed. Effective methods to control flow rate would enhance the efficiency of the storage system and the EER of the chiller. Considering the electric power price system of peak-valley value taking daily period, the storage system running in static mode could still meet the intermittent cooling requirement while the efficiency and EER would decline.

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Pages: pp. 33-38

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