The paper presents a numerical methodology to assess the natural ventilation. UrbaWind is an automatic computational fluid dynamics code. It was developed to model the wind in urban environments.
36th AIVC - 5th TightVent - 3rd venticool Conference - Madrid, Spain - 23-24 September 2015
The 36th AIVC Conference " Effective ventilation in high performance buildings", was held in Madrid, Spain, 23-24 September 2015. Contains 119 papers and extended summaries.
Wind-induced pressure coefficients on buildings dedicated to air change rate assessment with CFD tool in complex urban areas | 2015 | English | 8 pp
Optimization of indoor air quality through controlled cross ventilation in the retrofitting of residential buildings | 2015 | English | 11 pp
As an alternative to adopting active architectural systems (mechanical systems) and taking advantage of the resources provided by nature, natural ventilation contributes interesting solutions to control the thermal balance and the air quality, and
Model Home 2020 – full-year measurements of daylight, energy and indoor climate in five single-family houses occupied by typical families: what has been learned | 2015 | English | 8 pp
This paper describes Post Occupancy Evaluation survey and physical measurements of five families living for one year or longer in five houses located in Germany, Austria, France and UK, all part of the Model Home 2020 project.
Ventilation plan for smoking room must deal with pollutants since they affect the air quality of adjacent rooms.
Assessment of ventilation systems efficiency in office buildings, related to indoor volatile organic compound concentrations | 2015 | English
The objective of this study is to develop an approach concerning the integration of volatile organic compounds (VOCs) emissions due to office equipment in computational fluid dynamics (CFD) simulations, in order to assess the indoor air quality (I
Impact of ventilation and recirculation rates on exposure to and intake of ozone and its initiated chemistry products: Mass balance model evaluation | 2015 | English | 10 pp
A mass balance model is used to examine the impact of two ventilation (1 /h and 2 /h) and recirculation (7 /h and 14 /h) rates on concentrations, exposure to and intake of ozone (of outdoor origin) and secondary organic aerosols (SOA) derived from
The trend toward minimizing ventilation of houses in order to reduce energy consumption for heating and cooling leads to an increase in indoor air pollution.
Experimental characterization of the efficiency and energy consumption of various central ventilation air cleaning systems | 2015 | English | 10 pp
The present study aimed at assessing six commercially-available in-duct air cleaning devices which are designed to be mounted in the central ventilation system of offices or commercial buildings.
Supermarkets are a category of non-domestic buildings with high energy use because of their operation.
People spend more than 80% of their time indoors. In contrast to ambient air, no (legal) limits for indoor particulate matter exist, although there are WHO guidelines.
Stack driven ventilative cooling for schools in mild climates: analysis of two case studies | 2015 | English | 10 pp
This paper presents two case studies of stack driven ventilative cooling systems implemented in kindergarten schools located in the mild Subtropical-Mediterranean climate of Lisbon, Portugal.
Night time cooling by ventilation or night sky radiation combined with in-room radiant cooling panels including Phase Change Materials | 2015 | English | 11 pp
Night sky radiative cooling technology using PhotoVoltaic/Thermal panels (PVT) and night time ventilation have been studied both by means of simulations and experiments to evaluate their potential and to validate the created simulation model used
The new initiatives and regulations towards nearly zero energy buildings forces designers to exploit the cooling potential of the climate to reduce the overheating occurrence and to improve thermal comfort indoors.
There is an expanding literature on the value of sustainability features in buildings (European Commission, 2013; World GBC, 2013; World GBC, 2014).
The role of ventilation in achieving acceptable indoor air quality is examined in the light of emerging challenges, alternative mitigation strategies and performance indices within the spatial and time matrix of the indoor environment.
Ventilation projects within the international energy agency: objectives, approaches and expected results | 2015 | English
This key note presents the objectives, approaches and expected results of the on-going annexes relevant for ventilation and air infiltration in buildings and illustrate the importance of and expectations to an increased cross-annex coordination an
In the definition of the nZEB, the use of only one requirement is misleading. Different requirements are combined to a coherent assessment of an nZEB and to fit the definition given by the EPBD (2010/31 /EU) in article 2.
The current regulation in Spain regarding Indoor Air Quality (IAQ) provisions is Building Code (Código Técnico de la Edificación) for dwellings and Regulations on Building Heating Installations (Reglamento de las Instalaciones Térmicas en los Edif
According to past researches, most people spend 80%-90% of their time indoors. The ventilation is very important to people’s health and the comfortable surroundings around us.
The paper at hand collects research findings on the impact of air flow on the thermal performance of pitched roof assemblies. Air flows in these components are typically a mixture of: 1) in/exfiltration, 2) natural convection and 3) wind-washing.