In this study, a simulation study was conducted for the loss of efficiency caused by the heat emitted by the LED chips. The temperature change of LED luminaire was analysed for three different scenarios using finite element method. Due to the increase in the internal temperature of the luminaire and due to the air effect inside the LED luminaires, failure of the LEDs has been tried to be prevented. For this purpose, a passive cooling method was proposed in the simulation environment. So, in high power LED luminaires, the high heat emitted by the LED chips is reduced to low heat by an air flow method. In this way, efficiency in LED outputs has been achieved. 1. Yurtseven M.B., Mete S. ve Onaygil S. The effects of temperature and driving current on the key parameters of commercially available, high-power, white LEDs. Lighting Research and Technology, 2016. V48, #8, pp. 943–965.
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• LED lighting
• LED temperature
• thermal analysis
• energy efficiency