Simulation of bioclimatic systems in detached houses: reduced energy demand by using space in the basement
Palabras clave : 
Passive systems
Temperature control
Energy demand
Simulation
Air infiltration
Fecha de publicación: 
2017
ISSN: 
1746-4498
Cita: 
Echarri-Iribarren, F.; Echarri Iribarren, V.; Espinosa Fernández, A.. "Simulation of bioclimatic systems in detached houses: reduced energy demand by using space in the basement". Wit Transactions on The Built Environment. 171, 2017, 17 - 28
Resumen
The climate conditions of the Mediterranean coast in Spain require a high energy demand in detached houses. Traditionally, vernacular architecture obtained an air interior temperature in summer of around 26°C ¿ in principle quite comfortable because the superficial temperature of the walls was less than 23°C ¿ by using masonry walls of around 50 cm in thickness. However, the high amount of air infiltrating through doors and windows, together with the difficulty of expelling the water vapour generated by people, meant that in practice the conditions of comfort were less satisfactory. Modern architecture changed these building patterns. Multi-layered walls are achieved with much less thickness, usually giving a 4 cm thick layer of insulation and an air chamber. With this, the thermal inertia is greatly reduced. But the most relevant factor of change is the increase in the glass area of these houses. Although double glazing substantially reduces the thermal transmittance value, the energy demand is considerably higher. However, structural techniques make it possible to introduce bioclimatic systems that can be put to advantage. This research looks into the benefits of having living space in the basement, as a method of passive temperature control in summer. We studied a detached house on the coast of Alicante, where the moderate temperature of the ground tempers the interior conditions of comfort using the flow of air from the basement towards the upper floors,

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