水源热泵机组能效相关标准发展及其理论极限值

摘要

Through analyzing the development of water-source heat pump unit's energy efficiency standards,the requirements on the water-source heat pump unit's energy efficiency stated in different standards are summarized.The theoretical limit of the energy efficiency of the water-source heat pump unit is analyzed theoretically,and the calculation method is given.According to the rated working condition stated in the GB/T 19409-2013 Water-source (ground-source) heat pumps,the theoretical limits of ACOP for the water-source heat pump unit are deduced,which are 9.97,10.91,10.16 and 10.16 respectively for the water-loop type,the ground-water type,the buried-pipe type and the surface-water type,which equal to about double corresponding energy-saving evaluation value,and it shows higher space existing for improving the energy efficiency of the watersource heat pump unit.%分析水源热泵机组能效相关标准的发展,总结不同标准对水源热泵机组的能效要求,理论分析水源热泵机组的能效理论极限值,得出其计算方法.结合现行GB/T 19409-2013《水(地)源热泵机组》规定的额定工况条件,推导计算出水源热泵机组ACOP理论极限值:水环式为9.97,地下水式为10.91,地埋管式为10.16,地表水式为10.16,相当于对应节能评价值的2倍左右,说明提高水源热泵机组能效具有较大的空间.