Energía en Edificaciones

Gabriela Álvarez García.

Abstract


This contribution introduces the most significant challenges of our time, such as global warming, dependence on fossil fuels, increasing greenhouse effect and the excessive use of natural resources and their environmental, social and economic impacts. It is mentioned that cities function as Heat Island, concrete pavements, due to its components, contribute to global warming and the greenhouse effect. The cities, particularly the buildings, are the largest sector contributing to global warming and pollution emissions. Because of this, there is a need for sustainable buildings, involving the study of urban planning, water, materials, waste and energy consumption. Then, the discussion is pointed out to energy in buildings. In Mexico, the use of energy for air condition systems in buildings is growing continuously. The installation of AC technologies has a direct impact on energy consumption and emission patterns. The challenge is how to achieve using less energy to get comfort and therefore reducing greenhouse gas emissions. To reduce energy consumption for air conditioning, it is necessary to introduce the physics of the buildings in relation to the external environment. It is mentioned that the buildings are open thermodynamic systems in non-equilibrium, capable of exchanging mass /energy with its surroundings, which is always in dynamic situation. There are very few studies in Mexico about the implementation and experimentation in buildings and diagnosis in relation to their location in different climates. The cooling of a building is defined, and some theoretical and experimental results of building components such as glass, windows, ventilation, walls and roofs are shown. It was concluded that there are real and feasible solutions to decrease the energy consumption in air conditioning for cooling. Also there is a need to contribute with new studies and new building designs appropriate for each climate.

Keywords


Buildings, sustainability, energy in buildings, heat islands, energy consumption

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Revista Mexicana de Física S

 ISSN: In Process

  Non periodical electronic journal published by Sociedad Sociedad Mexicana de Física, A.C

Departamento de Física, 2o. Piso, Facultad de Ciencias, UNAM.
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