The End of it is the Beginning: End Use Energy Efficiency Improvements in Practice
When we talk of electrical energy conservation in the industry who is responsible for it? One obvious answer is that the electrical engineer is definitely not. The electrical energy arriving at the industry meets the transformer first. The efficiency of the transformer is 98％-99％. How do we save energy in an already highly energy efficient equipment? Then the losses in cables and wires. The I<2>R losses are as low as l％-2％and the scope for saving again is minimal. At 90％-95％efficiency the motors are again less amenable to efficiency enhancement. Does that mean there is no scope for energy savings in electrical energy? Surprisingly we find that 10％-15％ scope exists in electrical energy savings. That brings us to the question What consumes electrical energy in an Industry? Contrary to popular perception it is not the electrical motor. The motor is just a broker converting electrical energy to mechanical energy of pumps. compressors, fans etc. The efficiency of this mechanical equipment is relatively much less compared to a motor. Enormous improvement opportunities exist in the mechanical equipment. Further down, questioning the need and purpose for which these equipment are used and optimization at the end use can bring in dramatic improvements in energy efficiency. And all this at no-cost or low cost. This paper illustrates this concept with practical case studies.
J. Nagesh Kumar Sr. Deputy Director
National Productivity Council
国际会议
北京
英文
885-891
2007-06-10（万方平台首次上网日期，不代表论文的发表时间）