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Question:

Will the next solar hot water system, the solar energy pump how to select the number,

Will the next solar hot water system, the solar energy pump how to select the number,

Answer:

The sum of the three multiplied by the safety factor (1.1-1.2) to obtain the total head, known flow and head, according to the selected brand pump curve, a reasonable choice of pump models.
And the total length of the circulation pipe to determine the circulation diameter, and then calculate the pipeline along the road loss (the general pipeline loss is not more than 10 meters is appropriate); according to the tank to the collector overflow vertical distance calculation static pressure difference.
Generally need to calculate the total flow according to the collector area, a reasonable division of the branch and divided by the number of branches to calculate the branch flow, according to the collector test report on the flow resistance curve calculation and series calculation of the collector pressure drop;
But not over the national standard will be able to immediately design, the need for some experience, the pump chooses this thing unreasonable, the power will be several times different, many people engage in heat for many years are not good pump.

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