Saving energy costs with high efficiency motors

摘要

A switch to high efficiency IE3 class motors is set to save a manufacturer of high quality pet foods ￡28,000 on energy costs. Golden Acres Petfoods, based in Lancashire, makes 5,000 different premium pet food products. As part of an expansion plan, the company will raise production from the current 1,500 metric tons of dry extruded pet food a week to 2,500 metric tons and needed more capacity to extract the hot odorous gas produced during the cooking process. The company has built an extraction plant that takes odours from the process lines as well as providing general extraction for the production buildings. Three fans have been placed in a purpose built fan house. Two of these fans handle the extraction of the process gas and are powered by two IE3 motors, one of 250kW, the other of 185kW. All the building ventilation volumes are brought together to a single fan powered by a 250kW IE3 motor.