Recuperators: Employ waste heat from exhaust gases to preheat incoming air or gases, bettering combustion performance. You don’t should rebuild your Procedure from scratch. You merely have to get started on reclaiming what’s now yours. In a metal mill, it might be the exhaust from blast furnaces or slag cooling. https://socialeweb.com/story5898199/5-simple-techniques-for-waste-heat-recycling