Description

Over the past thirty years, the Steel Industry in North America has not used recuperation on annealing furnaces, but has made extensive use of recuperation on other processes, because of the fact that the potential savings on a BTU per ton basis were higher, and that the total usage of fuel has been higher in these other processes. Since the cost of fuel has been very low, the cost of fuel saving devices needed for annealing furnaces were such that the “pay-back” period, for recuperators on annealing furnaces would be somewhere between 10 and 15 years.