What is indicated by the acronym MRT?

The acronym MRT stands for Mean Radiant Temperature, which is a crucial concept in the field of building science and thermal comfort. MRT is a measure of the average temperature of all the surfaces surrounding a person, weighted by their respective view factors. It helps in understanding how heat is exchanged through radiant energy, which is essential for assessing overall comfort levels in indoor environments.

MRT takes into account not only the air temperature but also the temperatures of surfaces such as walls, floors, and windows, which can significantly influence a person's thermal sensation. By integrating the effects of these various surfaces, MRT provides a more complete picture of the thermal environment, allowing for better design and evaluation of heating and cooling strategies in buildings. Understanding MRT is essential for achieving optimal thermal comfort and energy efficiency in residential and commercial spaces.