How to determine the volume of a circulating water reservoir
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What is generally used to determine the capacity of a circulating water reservoir? Is it based on the flow rate or something else? Are there any standards? Please advise
Generally, 1/3 of the hourly circulation volume is taken; too large a value is not economical, while too small a value results in insufficient system stability.
It shall be not less than 1/12 of the maximum pump flow rate; that is, the water flow rate for 5 minutes is specified on page 25 of SH3016-1990.
http://bbs.hcbbs.cc/thread-5158-1-1.html SH 3016-1990 Code for Design of Circulating Water Systems in Petrochemical Enterprises
It is most reasonable to use half of the hourly water circulation volume; for example, if the water circulation rate is 10,000 cubic meters per hour, the designed pool should have a capacity of 5,000 cubic meters. A cooling tower is placed above it, along with auxiliary filtration systems, and the control panel is sized appropriately – neither too large nor too small.
Under normal circumstances, the water retention volume is 1/3 to 1/5 of the circulation volume. If it is greater than 1/3, the residence time of the chemical is too long, which can lead to its degradation and result in a lower effective concentration of the chemical. Furthermore, when the water retention level is too high, the amount of disinfectant used also increases, resulting in unnecessary waste. Also, replacing water results in a waste of water sources.