Applied Research of Grey Relational Analysis in the Energy Efficiency Assessment of Pump Station

摘要

The core of energy efficiency assessment (EEA) among energy consumers is to establish an integrated assessment model. In the paper, first, EEA process was described, and an assessment methodology based on gray relational analysis was introduced. Afterwards, a motor driving pump system was further studied as a typical example. By sorting pump-related standards and literatures, three indexes were chosen to form an assessment model for pump station, which were motor efficiency, unit energy consumption and pump efficiency, respectively. According to grey relational analysis, the operating data of one pump station in 24 hours a day was calculated and evaluated, and the result shows the feasibility of this EEA methodology for various energy systems, which provides a fresh idea for comprehensive evaluation of energy efficiency.