In the Traces of Bioclimatic Architecture

Abstract

The bioclimatic architecture is still fascinating to all of us. The lack of energy that the world is facing nowadays is forcing architects and engineers to implement smart solutions benefiting at the maximum from nature itself without considering the primary sources of energy that the world is actually using. Bioclimatic design has the roots in history, despite the fact that little attention has been paid to it throughout history. It is important to understand how natural systems operates, creating closed or semi-closed systems that mirror the ecological systems on Earth. The components of bioclimatic design deal mostly with: climate type and requirements; adaptive thermal comfort; vernacular and contextual solutions; tools and assessment methods; microclimate; sun path; wind; rain; passive and active systems and responsive forms. The aim of the bioclimatic design is to improve the natural environment through the utilization of clean energy and renewable energy system; to reduce the need for energy for heating purposes; and to reduce the energy for cooling proposes, air conditioning and lighting. Furthermore, bioclimatic design involves changes in regulation, improves the house comfort, and also improves urban quality of life. Bioclimatic buildings also include the use of building elements such as walls, windows, roofs, and floors, in order to collect, store, and distribute solar thermal energy and to prevent overheating. The aim is to manage the energy flows providing comfortable conditions during the entire year and the entire day. Minimization of thermal losses and utilization of climatic conditions (climate; microclimate, sunrise) are other important issues to consider. According to many studies, the best orientation for a building in order to maximize the heat gain during winter is east–west and the primary façade should face south. Sustainability is mostly an outcome, rather than a goal or a process. The aim of all designers is to reduce the ecological footprints and to improve the quality of life. The energy sustainability and the use of natural resources must be an integral part of a sustainable development. Nowadays, there are softwares that are developed in order to carry out environmental assessment tools and standards, in order to draw conclusions about internal thermal comfort; uncomfortable times in the building during the entire year; the need for shading devices and their dimensions; energy use, energy cost, etc. Simulations are essential in the design process. Examples chosen as case studies participate to have a better insight into the overall approach of the bioclimatic design. Applying the principles of bioclimatic design remains still a challenge in redefining the perfect bioclimatic house.