Energy Efficiency in Heat Treatment Plants-ROHDE Schutzgasöfen GmbH
In Germany electrical costs in 2018 averaged .33 U.S. dollars per kilowatt hour. Compare that to an average of .13 U.S. dollars per kilowatt hour in the USA and you quickly realize that the cost of electricity in Germany is a major concern for all heat treaters. Furnace builder ROHDE Schutzgasöfen GmbH of Hanau, Germany recently put together a very in depth report looking specifically at the energy efficiency of their furnaces https://www.rohdetherm.de/wp-c
pdf (we will emphasize again that this is a very detailed report). The photo below shows 2 typical Rohde vacuum nitriding systems located at HTU Härtetechnik GmbH in Mühlhofen, Germany.