Mathematical Modelling of Performance of New Type of Climate Adaptive Building Shell

Abstract Authors have developed an idea – a new facade system able to adapt to ambient conditions in order to cut heating demand in winter. The facade is called Passive Heating Facade. The facade extracts ground heat from a shallow depth and consequently the temperature of the facade rises. The heat extraction is ensured by passive mechanisms only so no additional energy is necessary. In this work feasibility of proposed system is assessed by the Computational Fluid Dynamics tool ANSYS CFX 16.2. A mathematical model is also applied to calculate possible heat gains of the Passive Heating Facade. Initial analysis of the simplified mathematical model shows that the proposed system is able to extract ground heat for facade heating purposes. It was calculated that one component of the Passive Heating Facade is able to generate around 45 kWh in one season, however the final design consists of several systems.