Stress relieving furnace modelling and analysis

Abstract

This project investigates the theory behind the application of a gas fired furnace to the achievement of a certain thermal cycle. The thermal cycle is question is to achieve a stress relieving process on materials generated by processing of the material by (for example) welding. This is achieved by exploration of available furnace technology information and then by the application of this information to the particular furnace and application under consideration. A thermal model for the furnace is then developed in an attempt to fully understand the effects of system parameter variation on the performance and efficiency of the furnace. In conjunction with the theoretical model, a prototype furnace is also developed to enable assessment of the furnace parameters directly through measurement. Aspects of the furnace design also considered are the structural, combustion, gas control and electrical elements. A brief life cycle assessment is also performed in order to assess the environmental impacts of the project. Alternative approaches to performing the stress relieving operation are then considered. Finally, a summary of the project objectives is presented along with further work which is to be carried out in the future.