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The Constant Pressure VWV System of Central Air Conditioning is Not Saving Energy

CAO Qi(Xi'an Jiao-tong University,Xi'an 710049,China)  
Energy-saving system of the constant pressure VWV in central air conditioning is the most extensive application system of saving energy.But it is not saving energy.The people of AC domain haven't been well-known for that,just consider that the energy consumption of inverting pump or fan is direct ratio to thrice power of rotate speed of pump or fan in error.The reason that the constant pressure VWV system is not saving energy has been proved in theory.In order to change radically the actuality of inverting saving energy,the concept of controlling water must be changed.
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