From the energy point of view, buildings should be as tight as possible. But lack of ventilation will result in high level of indoor pollutants, which is harmful for occupants.
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.
Numerical evaluation of the impact of hemp lime concrete moisture-buffering capacity on the behaviour of relative humidity sensitive ventilation system | 2015 | English | 9 pp
Hemp Lime concrete (HLC) is a bio-based material, which knows currently a growing development. HLC is a low embodied energy material. It has an excellent moisture buffer performance and is considered as good indoor climate regulators.
Ventilation effectiveness comparison between extract ventilation and balanced ventilation in a scale model | 2015 | English | 7 pp
The differences between extract ventilation and balanced ventilation are subject of many discussions in sales markets where both solutions have their share.
Mitigating Occupant Exposure to PM2.5s Emitted by Cooking in High Occupancy Dwellings Using Natural Ventilation Strategies | 2015 | English | 10 pp
The long term exposure to fine particulate matter with a diameter of ≤2.5 μm (PM2.5) is linked to numerous health problems, including chronic respiratory and cardiovascular diseases, and cancer.
At typical indoor CO2 levels there is no scientific evidence that CO2 is harmful to comfort and health of healthy persons, though there is a potential for negative effects on some aspects of performance.
Energy performance of active polarization filters vs. conventional filters in HVAC systems | 2015 | English | 7 pp
Pressure drop due to filters embedded in HVAC systems is one of the energy loss causes in building air conditioning systems, which can become important in large all-air systems with highly demanding filtering needs, such as hospitals, clean rooms,
How the filtration of the incoming air decreases the particle concentration within a school equipped with a balanced ventilation system | 2015 | English | 8 pp
To study the impact of the filtration efficiency level on the particle concentration in a rural school equipped with a balanced ventilation system with heat recovery, measurements of indoor and outdoor particle concentrations have been carried out
Radon concentration control by ventilation, and energy efficiency improvement | 2015 | English | 10 pp
Radon gas is a pathological agent confirmed by World Health Organization in terms of increasing the risk of lung cancer generation when it is inhaled by human in high concentration. This gas comes from soils with uranium content (i.e.
The aim of this paper is to show the effects of variable ventilation rates on the demand of energy and air quality in dwellings, and how airtightness and wind affect this relation.
Evaluation of Ventilation and IAQ Parameters Measured in Social Housing in Madrid | 2015 | English | 13 pp
Within this paper, an evaluation of Indoor Air Quality in residential buildings, and the experience after a building retrofit is shown.
People in industrialised countries spend about 90% of their time indoors. Hence, a good indoor climate is essential for health and well-being.
Implementation of multi-zone ventilation methodology in the Spanish energy performance certification tool | 2015 | English | 15 pp
The purpose of this paper is to enhance the importance of ventilation regarding energy use and stablishing methods in order to obtain as much data as possible about the behavior patterns of ventilation and infiltration in buildings.
A Study on the Reduction Effect of Ventilation and Heating Load by Installing Air-based Solar System in the Detached Houses | 2015 | English | 9 pp
Using solar heat energy has been paid attention to as effective natural energy use. In this study, we deal with air-based solar heat system, which is used for not only ventilation but heating and hot water supply by hot air.
3D Fluid dynamic analyses of open joint ventilated facades applying experimental Stereo-PIV techniques | 2015 | English | 9 pp
Open joint ventilated faÃ§ade (OJVF) is a passive constructive system widely used to ameliorate envelop of buildings, improving their energy efficiency.
How safe is it to neglect thermal radiation in indoor environment modeling with high ventilation rates? | 2015 | English | 5 pp
Typical heat sources in indoor environments include humans, electrical devices, and computers. The number of such sources in operating room environments is even higher due to the presence of surgical staff members and medical equipment.
Cold storage in the thermal mass of buildings using night ventilation. Experimental analysis | 2015 | English | 10 pp
An experimental analysis of the night ventilation technique for cooling in buildings, was performed in a test cell with the aim of establish the potential of this technique in two scenarios: a) when the air-stream is in poor contact with the therm
A modular, open system for testing ventilation and cooling strategies in extremely low energy lecture rooms | 2015 | English | 10 pp
Lecture rooms with their high, quickly fluctuating internal gains, e.g.
Evaporative Cooling and Ventilation Control Strategies for a Kindergarten in Mediterranean Climate | 2015 | English | 10 pp
Aim of this work has been to determine the effectiveness of evaporative cooling and ventilation control strategies on a case study to ensure an adequate combination between energy efficiency and high levels of indoor comfort.
Control Strategies of the Natural Ventilation for Passive Cooling for an Existing Residential Building in Mediterranean Climate | 2015 | English | 10 pp
Natural ventilation is increasingly considered one of the most efficient passive solutions to improve thermal comfort in buildings.
Thermal performance analysis of a solar chimney, based on the experimental study of the main driving variables in a physical prototype | 2015 | English | 11 pp
This work presents the thermal behavior of a stand-alone experimental solar chimney during one year. The dimensions of the solar chimney are 5.60 m high, 1.0 m width, and 0.52 m depth.