Thermal modelling and optimization of heat transfer in a high-temperature theatre luminaire

A computational fluid dynamics model has been developed to predict the thermal performance of high-temperature theatre luminaires. The theoretical results are in good agreement with available experimental data. The model has been used to investigate the behaviour of the thermally sensitive areas of the luminaires. The model shows that an appreciable reduction of critical temperatures can be achieved by using extended surfaces at key locations. The model can also be used to evaluate and optimize future designs.