LoginThe increase of the ambient air temperatures in urban areas during the past few decades, due to the heat island phenomenon and the warming of the lower atmosphere, has strong impact on the energy profile of buildings, the comfort conditions, the a
34th AIVC - 3rd TightVent - 2nd Cool Roofs - 1st venticool Conference - Athens, Greece - 25-26 September 2013
The 34th AIVC - 3rd TightVent - 2nd Cool Roofs - 1st venticool Conference - Energy conservation technologies for mitigation and adaptation in the built environment: the role of ventilation strategies and smart materials was held in Athens, Greece, 25-26 September 2013.
Contains 130 papers.
Volume content
On investigating instantaneous wind-driven infiltration rates using CO2 decay method | 2013 | English
Carbon dioxide has been already recognized as a potential tracer gas towards estimation of the mean air exchange rates (ACH) of a room or building.
Cooling energy savings in a building with the roof coated by high reflectance paint are examined. It is difficult to recognize the cooling energy savings by using the data observed every hour.
The EPBD directive (91/2002/EU) paved the way for the European Union member states to develop and apply a holistic approach on the building’s energy performance.
Experimental performance characterization of a new single room ventilation device with heat recovery | 2013 | English
Nowadays, important efforts are made to reduce the residential building energy consumption. In this context, a growing interest for heat recovery ventilation has been observed during the last decades.
Study on the appropriate selection of urban heat island measure technologies to urban block properties | 2013 | English
Toward the appropriate selection of urban heat island measures technology in the street canyon, the introduction effects of the technologies in the typical street canyon are analysed by the model calculation.
Re heat recovery systems necessary for nearly zero energy buildings in mild climates? | 2013 | English
Heat recovery ventilation became an unavoidable element of a passive or nearly zero energy building in Northern and Central Europe countries.
With the continuous improvement of the energy performance of buildings, ventilation plays a crucial role in the control of pollutants from indoor sources and related comfort and health effects.
As a consequence of the energy and environmental issues, it is necessary to reduce the energy consumption of buildings. So, the air tightness of building envelopes is being improved and the air change rate due to infiltration is decreasing.
Cool roof for passive cooling: simulations of an existing building in southern Italy | 2013 | English
Roofs are the envelope component more severely hit by solar radiation in summer (1470 kWh/m2 on average in Italy), hence one may expect that using cool materials on the finishing layer of a roof should provide a significant reduction in the heat f
Uncertainties in air exchange using continuous-injection, long-term sampling tracer-gas methods | 2013 | English
The PerFluorocarbon Tracer (PFT) method is a low-cost method commonly used for measuring air exchange in buildings.
Development of an algorithm for predicting the performance and optimizing the design of an energy efficient lighting system | 2013 | English
This paper describes part of the research that is being done on the prediction of the performance of light pipes and the ways to optimize their design, in order to house artificial lighting, able to supplement daylight in a space.
Micro-climate modification and potential for reduction in summertime over-heating in social housing, South Wales (UK) | 2013 | English
There is a growing consensus that the climate is changing faster than at any time in the past millennium. This is likely to have major effects upon many aspects of the built environment.
Use of cool materials in outdoor places in order to mitigate the urban heat island in a medium size city in Greece | 2013 | English
The materials that are used in outdoor spaces are of prime importance as they modulate the air temperature of the lowest layers of the urban canopy layer, they are central to the energy balance of the surface and they form the energy exchanges tha
In order to improve the quality of ventilation systems, assessments are widely used. In this paper, 3 main assessment levels are distinguished based on the number of ventilation systems to be assessed and the assessment objective.
The raise of sustainability in the urban design is a key-factor for addressing the challenges in response to climate change, resource availability, environmental degradation and energy consumption.
Evolution over time of UV-VIS-NIR reflectance of cool roofing materials in urban environments | 2013 | English
Highly reflective building envelope materials are widely identified as an effective design option to limit the peak surface temperatures of roofs in summer conditions, thus mitigating the urban microclimates and the energy demand for cooling.
Impact on IAQ of building material emitted pollutants through building leaks: State of the art and sample testing methodology | 2013 | English
French authorities have launched an extensive thermal renovation program aiming at retrofitting 4M dwellings over 10 years, with priority given to the most energy consuming ones.
Design impacts of cool roof coating, ventilation and thermal inertia on commercial low-rise building energy demand and summer comfort | 2013 | English
Few studies focus on commercial low-rise buildings which are often characterized by low-cost constructions materials and weak energy performances. For these large volumes, the heat transfers with the roof and the ground are prevalent.
Effective conservation of historic buildings subject to monumental restrictions is realized through a re-use for modern functions.