Three aspects of energy use

摘要

The identification of low-cost energy conservation opportunities is simplified by focusing on three aspects of energy use: energy source, conversion efficiency, and function. Energy source. Different sources of energy lead to different costs. Using a less expensive or more efficient fuel, utilization of waste heat, or strategic operation of equipment within the constraints of the energy source rate structure can lead to lower costs. Conversion efficiency. This aspect examines the operating efficiency of a unit process in terms of the energy source as an input and the desired function as an output. Low- cost measures to improve this conversion typically include fine-tuning such conversion systems as pumps, motors, aerators, and chemical treatment processes.