利用热电厂低品位蒸汽的数据中心能效评价研究

Energy efficiency evaluation of data centers using low-grade steam from thermal power plants

研究了利用热电厂低品位蒸汽作为部分输入能源的数据中心能效评价方法,提出了实际损失电量法,研究了利用热电厂低品位蒸汽的节能效果。通过对利用热电厂低品位蒸汽数据中心案例分析,对比了等价值法、等效电法和实际损失电量法在能效评价中的应用,建议采用实际损失电量法进行数据中心能效评价。在案例分析中发现利用热电厂低品位蒸汽供冷节能效果不显著。随着数据中心冷水供水温度提高,判断利用热电厂低品位蒸汽供冷的数据中心是否节能需要根据蒸汽品质、冷水供水温度、设备性能、气候条件等进行定量分析。

In this paper,the energy efficiency evaluation methods of data center using low-grade steam from thermal power plants as part of the input energy are studied,the actual power loss method is proposed,and the energy saving effect of using low-grade steam from thermal power plants is studied.In the case study,this paper compares the application of equal value method,equivalent electricity method and actual power loss method in the energy efficiency evaluation,and suggests using the actual power loss method to evaluate the energy efficiency of data centers.In the case,the energy saving effect of cooling with low-grade steam from thermal power plants is not significant.With the rise of the chilled water supply temperature,it is necessary to make quantitatively studies based on the steam quality,the chilled water supply temperature,the equipment performance and the climatic conditions to evaluate the energy saving effect of using low-grade steam from thermal power plants in data centers.