Control method for lowest-water-level-changing double-water-tank solar water heating system
A technology of solar hot water and the lowest water level, applied in solar heating systems, solar collector controllers, solar thermal energy, etc., can solve the problems of increased heating time of auxiliary heat sources, lack of scientificity and accuracy, and increased system energy consumption , to achieve good coupling, improve heat collection efficiency, and reduce turn-on time
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[0080] Project overview: The design daily water consumption of the solar centralized hot water system is 10t, and the hot water at 60°C is supplied 24 hours a day. The hot water tank, the heat collector adopts glass vacuum tube, the heat collector area is 150㎡, the heat collector inclination angle is 39°, the auxiliary heat source is electric heating, and the heating power is 120kW.
[0081] Step 1. Collect multiple parameters of the double-tank solar water heating system at each time period in the 14 days before the forecast date. The process is as follows:
[0082] An uploaded water level gauge and a thermometer are respectively installed on the hot water supply tank 1 and the hot water collection tank 9 to detect the real-time water level h in the hot water supply tank 1 respectively. 1 , The real-time water temperature t in the hot water tank 1 , the real-time water level h in the hot water tank 2 , The real-time water temperature t in the hot water tank 2 ; On the syst...
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