The potential for saving electricity by demand side management : a case study | |
| Author | Kitti Petchsanthad |
| Call Number | AIT Thesis no.IE-93-11 |
| Subject(s) | Energy conservation Electric utilities--Management |
| Note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. IE-93-11 |
| Abstract | This study deals with the electricity saving potential through improving efficiency of electric motors in the industrial sector. Factory surveys are conducted in three factories in Bangkok, Thailand ; gypsum, steel and paper factories, to measure and find out the performance of electric motors. Slip measurement technique is used in estimating motor load and motor efficiency under load condition. The results of the survey show that the motors are oversized, 47% of the motors are operating at less than 50% of their rated load and the majority of them have efficiency lower than standard efficiency defined by National Electrical Manufacturers Association (NEMA). The Energy-Efficient Motor (EEM) technology is discussed and the potential savings through using EEM in place of standard motors are evaluated. The result shows that approximately 3.37% of electricity consumed can be saved through this technology. The economic analysis is performed based only on incentive policy. The investment in the Industrial Motor Electricity Savings Program (IMES-program) through using EEM indicates a payback period to motor users of 2.5 years. The approximate saving potential is 202.80 GWH per annum and 26.23 MW of peak power over the next fifteen years. Assuming a real discount rate of 8% and a lifetime saving of 15 years, the results indicate that the utility cost of saved energy is 0.227 Baht/KWH and the cost of avoided peak power is 1,757.50 Baht/K.W. This study also analyzed the sensitivity of IMES-program. It is concluded that the cost effectiveness of IMES-program through using EEM depends on motor duty factor, electricity cost, cost of EEM, EEM penetration rate, discount rate, lifetime saving and purchase scenarios. After all these analyses, it is concluded that there is a potential for electricity savings in the industrial sector of Thailand through using EEM in place of standard motor. The IMES program can be a feasible energy conservation project in Thailand. |
| Year | 1993 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. IE-93-11 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Industrial Engineering (IE) |
| Chairperson(s) | Tang, John C. S.; |
| Examination Committee(s) | Pandey, P. C. ;Surapong Chirarattananon; |
| Scholarship Donor(s) | Electricity Generating Authority of Thailand (EGAT); |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology |