基于熵权-灰色关联-TOPSIS法的油田加热炉能效评价

加热炉是油田地面工程中最重要的耗能设备之一,其能效水平直接影响着油田公司的经济效益.为了提高加热炉的能源利用率,建立一套油田加热炉能效评价体系模型并对其进行实例分析.首先采用熵权法确定油田加热炉各评价指标权重序列,并分析其原因,其中加热炉热效率不仅会受到其余各指标的影响,还会受到外部环境以及油品属性等影响,因此其变异程...

Energy Efficiency Evaluation of Oil Field Heating Furnace Based on Entropy Weight-Grey Correlation-TOPSIS Method

Heating furnace is one of the most important energy consuming equipment in Oilfield Surface Engineering.Its energy efficiency level directly affects the economic benefit of Oilfield Company.In order to improve the energy utilization rate of the heating furnace,this paper establishes a set of energy efficiency evaluation system model of the heating furnace in the oil field and makes an example analysis.Firstly,entropy weight method is used to determine the weight sequence of each evaluation index of oil field heating furnace,and the reasons are analyzed.Among them,the thermal efficiency of heating furnace will not only be affected by other indexes,but also by the external environment and oil properties,so its variation degree is large,and the corresponding weight value is the largest.However,the measured value of the excess air coefficient is generally between 1.1 and 2.5,and the variation degree is small,and the corresponding weight value is the smallest.Then the grey correlation-TOPSIS method is used to calculate the relative closeness between the energy efficiency index and the ideal operation state of each heating furnace,which is between 0.4 and 0.7.It is analyzed that the main reason for the low operation efficiency is that one index deviates too much from the optimal operation condition,or is the result of multiple indexes.The results show that the model can be used to evaluate the energy consumption of heating furnace in oil field,which can provide theoretical basis for energy saving and consumption reduction in oil field.