Zero energy office based on BIM 6D

Abstract

One of the least used aspects of BIM (Building Information Modeling) is the ability to obtain the building's energy model using the BIM methodology known as BIM 6D. This digital information model allows to simulate the real energy behavior of the building and improve the lighting systems of the building. In this way, the BIM 6D simulation allows us to make design and operational decisions for the building, not only for new buildings that must be NZEB (Nearly Zero Energy Building) according to current legislation, but also for the rehabilitation of existing buildings. BIM 6D allows an exhaustive analysis of the energy effects of this rehabilitation, especially in the case of sanitary buildings, and brings with it an energy and lighting improvement, which in turn leads to greater quality and comfort in the sustainable use of the building. This issue takes on special relevance in public buildings, where energy efficiency and comfort, aimed at optimal and efficient lighting, are two fundamental criteria highly valued by patients and the public. Once the building's energy model has been prepared, it will be possible to study and identify possible alternatives to improve energy efficiency and lighting, as well as analyze the possibilities of incorporating other more efficient forms of renewable energy such as the use of natural light. In this work we can see how, applying a series of improvement measures simulated in BIM 6D, an energy saving of 50% is achieved in general and of up to 13% only by acting on lighting systems, which allows the energy decarbonisation of buildings high consumption. as hospitals and will improve the energy certification of these buildings; As a result, a better and higher quality of life is achieved through the use of more efficient forms of lighting and the conversion of buildings into more sustainable spaces.