Global optimization control method of ground source heat pump
A ground-source heat pump, global optimization technology, applied in heat pumps, refrigerators, refrigeration components, etc., can solve the problems of deterioration of heat exchange, reduced efficiency, and reduced power consumption of water pumps in the condenser of the unit, and achieves a significant effect of promoting development and energy saving of water pumps. Effect
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[0118] Example 1:
[0119] For the following ground source heat pump systems: two Clement screw heat pump units with a cooling capacity of 1623kW and a heating capacity of 1746kW. The cooling medium of this unit is R22, and the supply and return water temperature of the user side is 7 / 12℃ under the summer design conditions. , The temperature of the supply and return water on the user side is 45 / 40℃ under design conditions in winter. Underground heat exchanger has 550 boreholes, all of which are vertical double U-shaped. The design parameters are shown in the table below.
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[0122] Suppose the load on a certain day is:
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[0124] Bring the above data into the optimal control method of ground source heat pump. After modeling, the compressor partial load efficiency curve is as follows: Image 6 Shown.
[0125] Using the optimization algorithm to calculate the optimal underground side flow rate and user side flow rate are:
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[0127] The above global optimi...
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