The optimal energy and environmental management criteria of used induction motor in Thailand to enhance economic value

This paper presents the approach to analyze the increasing rate of electrical energy consumption for used induction motor by considering the different maintenance procedures in case of age within and over the lifetime. The sample induction motors are selected to determine the efficiency according to IEEE Standard 112-Method B which the losses of induction motors are evaluated by electrical sensor. The experiment results demonstrate that the reduction rates of performance are 1.50% per year, 2.50% per year and 1.83% per year for induction motor age within lifetime and recommended maintenance procedures, age within lifetime without recommended maintenance procedures and age over lifetime and recommended maintenance procedures, respectively. Furthermore, the declining performance rate of the induction motors age over lifetime and recommended maintenance procedures is acceptable. However the induction motor without recommended maintenance procedures has more losses than the age over lifetime induction motor by 0.67% per year. Regarding to the simulation of induction motor, the energy cost within lifetime in case of both maintenance procedure and without maintenance procedure is 18,266.96, 12,672.99 and 11,283.48 Baht/year for 24, 16 , 8hour/day, severally. In addition, the induction motor used within lifetime and recommended procedure can reduce CO₂ emissions up to 3.01Tons/year. Finally, the optimal energy policy and environmental management aspect are enhancing the economic value of used induction motors in Thailand.