Effect of zoning design of VAV system on air conditioning energy consumption of a super high-rise office building

Taking a super high-rise office building in Beijing as an example, simulates the annual hourly cooling and heating loads of building zoning in different orientations using the DeST software. Compares the annual cooling supply, heating supply and operating costs of four different VAV air conditioning system schemes. The comparative analysis shows that it is necessary to adopt air conditioning and outdoor air systems respectively in the interior and exterior zones according to the load characteristics of the building zoning, nevertheless, the energy saving performance of the outdoor air heat recovery unit is not well as expected.