Abstract
Bulk goods are widely employed in different industrial sectors comprising the food, mining and process industry. When handling bulk goods, deposits on hot surfaces, like pipe or heat exchangers often cannot be completely excluded. These deposits can start to smoulder and could be sources of fire or an explosion. This is a problem not to be underrated which brings many safety issues for the industry and the process engineers. Based on this topic, a simulation was created to determine the smolder temperature under different ambient conditions. This simulation is based on the theory of Frank-Kamenetzki (1959) and Thomas (Bowes, 1984), which describes the beginning of a combustion process through an imbalance of heat production and heat dissipation. This simulation should be a supplement of the determination of the smolder temperature, described in DIN EN 50281-2-1 and can simplify the risk assessment of dust layers on hot surfaces.
