Abstract
The majority of buildings in Europe are at present naturally ventilated and do not use heating or cooling equipment throughout the summer. However, this idea is changing and as a result heating ventilation air conditioning (HVAC) related energy consumption has been rising in the recent years. On the other hand, predictions published by the intergovernmental Panel on Climate Change (IPCC) indicate an annual warming rate ranging between 0.1 and 0.4 °C. In the present study, the ISO 13790:2011 standard has been employed to analyze the effect of building design corrections over the energy saving of a real building during its mean life and under climatic change predictions. In this sense, the effect of climate change, ventilation rate and its energetic and carbon dioxide emissions implications are obtained for the next 15 years. The results obtained indicate that an increment in the air changes by natural ventilation will be more effective than changing the wall structure and, in consequence, the thermal inertia. In particular, it was obtained that an increase of natural ventilation will always reduce the energy consumption and that this consumption will be lower with time due to an increment of an average outdoor air temperature. This modification will allow reduced cooling energy peak demands during the summer season and improve indoor ambiences in mild regions and the energy efficiency.
Highlights
Most buildings in Europe are currently naturally ventilated and do not use heating or cooling equipment throughout the summer months [1]
The global contribution of buildings towards energy consumption, both residential and commercial, has steadily increased reaching figures between 20% and 40% in developed countries, and has exceeded the energy consumption of the other major sectors: industrial and transportation [2]. In this sense, heating, ventilation, and air conditioning (HVAC) related energy consumption has been rising in the recent years throughout Europe, principally for air conditioning during the summer months in Southern Europe
New information about the effect of climate change over energy consumption in Galician office buildings was introduced based on the International Organization for Standardization (ISO) 13790:2011
Summary
Most buildings in Europe are currently naturally ventilated and do not use heating or cooling equipment throughout the summer months [1]. The global contribution of buildings towards energy consumption, both residential and commercial, has steadily increased reaching figures between 20% and 40% in developed countries, and has exceeded the energy consumption of the other major sectors: industrial and transportation [2] In this sense, heating, ventilation, and air conditioning (HVAC) related energy consumption has been rising in the recent years throughout Europe, principally for air conditioning during the summer months in Southern Europe. More procedures must be provided for more detailed simulation and, in consequence, to ensure compatibility and consistency between the application and results of the different types of methods To achieve this objective, the EPBD has stated that the energy efficiency of buildings must be calculated in the member states considering local climate [17,18] and improving new and old calculation software resources [19]. Equation (7) has been proposed for office buildings, both for heating and cooling
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