Influence of radiative heat transfer to room temperature

Abstract

The main idea of the room model development is to simulate thermal response of the building construction into changing boundary conditions. The room model was created and subsequently the thermal analysis was calculated. The central idea of this article is to study radiation influence to overall room temperature. Heat transfer by radiation can lead to two problems during simulation. Firstly, this phenomenon is strongly non-linear and secondly, precise emissivity value is uncertain. There is discussed an error due to neglecting radiation process for internal building conditions and also the possibility to model radiation by means of raising the value of heat transfer coefficient by convection. Temperature course of the simplified model is analyzed and compared to the original model output.