Calculation of the volume of circulating water in central air conditioning systems
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How is the water volume in a central air conditioning circulating water system calculated? If chemical treatment is used, how is the dosage generally calculated?
Under normal circumstances, the water volume on hand equals the sum of the volumes of the cooling tower basin, side filtration tanks, circulating water pipes, heat exchangers, expansion tanks, etc. For chemical treatment, it is necessary to take into account factors such as water quality (at a minimum, calcium hardness, magnesium hardness, alkalinity, chloride ion concentration, sulfate ion concentration, conductivity, etc.), the amount of circulating water, the water volume on hand (which is generally 1/3 to 1/5 of the hourly circulating water volume), and environmental regulations. Only by combining these data can it be determined what agents to use and in what quantities.