TR2016-053

A Humidity Integrated Building Thermal Model



A building thermal simulation model is proposed in this paper to predict temperature and humidity for short term response under varying environment inputs. This model is composite of a thermal circuit model to predict zone temperature and a enhanced BRE admittance model to predict zone humidity. Various environment factors such as weather, human activity, radiation, moisture absorption/desorption, ventilation, and condensation are considered. The training and prediction procedures are accelerated with approximations. In both laboratory and field tests, the model shows good performance on temperature and humidity estimation. To the best of our knowledge, it is the first time that a grey-box building thermal model can provide accurate humidity prediction with time step as short as 5 minutes.