Controlling water-to-water CO2 heat pump for optimal coefficient of performance

Scientists have designed a novel control approach for water-to-water heat pumps that use carbon dioxide. They relied on a virtual heat pump for their tests. The coefficient of performance (COE) improved by up to 14. 6%. Scientists led by China's Dongguan University of Technology have proposed a novel control approach for water-to-water heat pumps that uses carbon dioxide (CO2) as refrigerant. The model-based optimal control (MC) was tested against a typical control (TC) mechanism over a virtual heat pump, improving the COE by up to 14. 6%. "An efficient optimization strategy for the MC of water-to-water ...

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