Abstract
Abstract The last years are marked by heavily fluctuating energy costs and uncertainties in energy supply. Prognoses exhibit a dramatic gap between supply and demand on fossil energy carriers in the years to come. Energy efficiency is one key to cover the future worldwide energy demand. In Austria and Germany process heat represents a considerable portion of total energy consumption. Targeted primary measurements and a consequent utilisation of waste heat in plants may lead to a significant improvement of plant efficiency and in consequence to a reduction of CO2-emissions. By way of a gas-fired pusher-type furnace for carburising internal and external efficiency increasing measures are demonstrated and their influence on the overall process are assessed.
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