RT info:eu-repo/semantics/conferenceObject
T1 Transient simulation of the influence of wind conditions on the airtightness of windows. A case study for a tertiary building
A1 Briones Llorente, Raúl
A1 Montero García, Eduardo
K1 Airtightness
K1 Energy efficiency
K1 Thermal Inertia
K1 TRNSYS
K1 Electrotecnia
K1 Electrical engineering
K1 Ingeniería mecánica
K1 Mechanical engineering
K1 Construcción
K1 Building
AB Achieving a reasonable level of airtightness is important for the energy efficiency of living spaces and thecomfort of occupants. The benefits of improved insulation levels and more energy efficient heating systemsare lost if warm air can leak out of a building and cold air can leak in. Poor airtightness can be responsiblefor up to 40% of heat loss from buildings. Airtight buildings require airtight windows. Airtightness of windowsis often evaluated in lab conditions in the context of initial type testing. Testing methods can be found inseveral international standards, leading to airtightness classifications of windows for building codes. Thelevel of airtightness achieved is measured as air permeability, as the quantity of air that leaks into or out ofthe window per hour. Airtightness of windows is typically expressed per meter opening joint or per squaremeter. Nevertheless, airtightness of window is highly sensitive with respect to wind conditions, mostly speedand direction. Increased attention to energy efficiency and airtightness of buildings has led to more researchon the performance of windows, and can be estimated by appropriate simulation. This work presents a casestudy of the influence of wind speed and direction on the thermal load of a tertiary building due to leakagethrough windows. Transient simulation by means of Transient System Simulation (TRNSYS) package ispresented. Results are analyzed as a function of standardized window type. Besides, relative influence of theinternal layers of the façade on the thermal load of the building is studied. Three alternative cases of highthermal inertia are compared with the existing one with low thermal inertia.
YR 2017
FD 2017-07
LK http://hdl.handle.net/10259/8947
UL http://hdl.handle.net/10259/8947
LA eng
NO Comunicación presentada en: International conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2017), 2-6 July 2017, San Diego State University (USA).
NO Esta comunicación no se incluyo en el libro que editaron del Congreso
DS Repositorio Institucional de la Universidad de Burgos
RD 15-may-2024