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Academic literature on the topic 'Qualité des Environnements Intérieurs (QEI)'
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Dissertations / Theses on the topic "Qualité des Environnements Intérieurs (QEI)"
Hernandez, Wilches Oscar. "Etude et analyse de la ventilation et de la qualité des environnements intérieurs (QEI) dans les bâtiments de bureaux à faible demande énergétique : le cas de la Tour Elithis à Dijon." Thesis, La Rochelle, 2014. http://www.theses.fr/2014LAROS016/document.
Full textThis research work was carried out in conformity with the Industrial Convention of Training by Research (CIFRE). And was financed by the National Association of Research and Technology (ANRT) and the Elithis Group (Groupe Elithis), engineering and consulting firm specializing in the field of energy efficiency. The building represents more than 40 % of the energy demand in Europe and more than a third of greenhouse gas emissions (GHG), an important effort to improve the energy efficiency of buildings associated have a drastic reduction in their green house gas emissions (GHG) is necessary today. In this sense, the evolution of the regulations, so Europeans as nationals converge on the development on a large scale new or renovated building with a very low energy demand. In the strategies of conditioning of the internal spaces, the optimized management of ventilation takes the first step. Besides the renewal of air, the ventilation is indeed the oldest and the most widely used strategies of Indoor Environmental Quality (IEQ). Besides the energy aspects, the international work led by the World Health Organization (WHO, 2000) or within the framework of coordinated European projects (European Collaborative Action Urban Air, Indoor Environment and Human Exposure) (ECA, 2003) claims today that the air quality is recognized as a real stake in public health (ANSES, 2014). So, to deal with the performance of a ventilation system, besides the energy aspects and its efficiency to evacuate pollutants or to provide new air in the occupied zone, it is thus advisable to approach the complete problem of the Indoor Environmental Quality (IEQ) integrating into its definition the Indoor Air Quality (IAQ) but also the hydrothermal and visual comfort of the occupants. We carried out a complete follow-up of energy consumption, thermal comfort and the air quality in an office building with low energy demand, the Tower Elithis. We observed that energy efficiency is not always synonymous with comfort and good air quality. We thus created a digital model of this building, which allowed us to test and to analyze different strategies of function. We used various criteria of IEQ which allowed us to make an analysis of the global performance of the building, to conclude that the hydrothermal, visual comfort and the IAQ can be associated to an optimization of the energy demand
Berthelot, Brice. "Conception de capteurs dédiés à la surveillance particulaire biologique des environnements intérieurs." Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1170.
Full textNowadays people pass 90% of their time in closed spaces, and in consequence are exposed to indoor and outdoor particulate matter for which no reference value is available. These pollutants include biological particles and in particular fungal spores, the most numerous living particles and most diverse on the air we breathe (Nolard, 1997). Ubiquitous and harmful, fungal particulate pollution is implicated in the occurrence of many diseases including immuno-allergic diseases. In the context of the monitoring of the microbiological quality of air in indoor spaces, this thesis aims to provide first design elements of an individual diagnostic device dedicated to the exposure assessment of allergenic bio-contaminants focusing in particular on airborne fungal pollution. This research relies on the technical and scientific expertise of CSTB, ESIEE Paris and Université Paris-Est for fungal detection, miniaturization of measurement instrumentation and aerosol physics. Thus, this work is built around a system architecture based on three main elements: the capture and selection of particles according to their surface physical and chemical properties, the particles mass quantification and the identification of the nature of the particle using chemical analysis. These elements relate to many topics covered during the thesis work. In this way, the first topic consists in studying the adhesion of conidia to surfaces to better understand the determinants of this physical phenomenon and evaluate the energies involved. Subsequent results were used during a second stage of this work, to design a MEMS-type silicon microbalance considering the particle-resonator interaction. By this mean the issue was to solve some scientific challenges identified in the literature, such non-uniform sensitivity over the entire device surface or nonlinear frequency responses due to the added mass. Such an approach has also allowed evaluating the performance expected for such sensors. The last aspect of this research focused on the identification of biological airborne particles chemically combining pyrolysis of biological entities of interest, and gas chromatography and mass spectrometry (Py-GC/MS). On this occasion, a collaborative work engaged with the "Réseau National de Surveillance Aérobiologique" allowed to experience the technological solution and our methodology since another class of particles was considered: pollens. The analysis of volatile organic compounds obtained from Py-GC/MS characterization of micro-fungi and pollens demonstrated the existence of a specific chemical signature for each biological particle class. Thereafter, it was then possible to establish a variety of chemical markers lists for phyla and different species of the contaminants studied. The relevance of these markers has been further tested in an in-situ assay
Blondeau, Patrice. "Caractérisation et modélisation des transports de polluants dans les environnements intérieurs." Habilitation à diriger des recherches, Université de La Rochelle, 2008. http://tel.archives-ouvertes.fr/tel-00351567.
Full textBessonneau, Vincent. "Étude de la variabilité spatio-temporelle de la contamination de différents environnements intérieurs par les composés organiques volatils." Rennes 1, 2011. http://www.theses.fr/2011REN1S138.
Full textThe degradation of the indoor air quality can lead to numerous health ranging from headaches to respiratory disorders such as asthma. In our modern lifestyle, we spend approximately 90 % of our time indoors, where we are exposed to many polluants. Volatile organic compounds (VOCs), with more than hundred substances detected, represent a large part of the contamination. In addition, indoor environments contain multiple sources that lead to a heterogeneous contamination. This thesis work proposed a new approach for the classification of emissions, based on their spatial and temporal variability. The implementation of this approach in different indoor environments (homes, swimming-pools, hospitals) led to the development of sampling strategies, which could be used for monitoring programs, the assessment of concentrations levels of few VOCs, and the assessment of the main determinants of the contamination
Moularat, Stéphane. "Etude de la contamination fongique des environnements intérieurs par la détermination et la mesure de traceurs chimiques spécifiques : application à l'hygiène de l'habitat." Université de Marne-la-Vallée, 2005. http://www.theses.fr/2005MARN0240.
Full textDisease occurrence in mouldy environments is very widely described in the literature. Health effects of moulds and associated metabolites are numerous: infection, allergy, toxi-infection, irritations. Prevalence and severity of declared diseases in the childs and adults seem correlated with an increase of indoor contaminated surfaces. However, the characterization of occupant exposure remains underestimated. The object of this work is essentially focused on the development of analytical methods to determine microbiological indoor quality, the definition and validation of survey indicators. This research is thus both aimed at the development and improvement of sampling techniques and also on the conception and adaptation of direct and indirect measurements methods of metabolism products ( Specific VOC) or of specific cellular components (Ergosterol, mycotoxins). The study of VOC of fungus origin enabled the definition of relevant chemical tracers associated with fungus development. >From these compounds, we established an index of fungus contamination in the indoor environments. Samplings realized in 12 houses allowed the validation of this index. Besides, an original methodology of quantification of mould exposure was proposed taking into account the evaluation of biomass and airborne mycotoxins. The transfer rate of material-air of a mycotoxin (the sterigmatocystin) was also studied
Vignau-Laulhere, Jane. "Développement du préleveur passif pour la mesure du formaldehyde dans l'air en vue d'améliorer le diagnostic dans les environnements intérieurs." Thesis, Pau, 2016. http://www.theses.fr/2016PAUU3006/document.
Full textSince 2001 and the creation of a French Indoor Air Quality Observatory (OQAI), indoor air quality has become a major public health issue. It is the subject of a regulatory framework that continues to evolve in recent years. Two recent decrees, in France, foresee the implementation of the labeling of building materials according to their emissions of volatile organic compounds (VOCs) (decree n°2011-321, 23/03/2011) and the survey of air concentration of two pollutants (benzene and formaldehyde) with guide values in public buildings (n°2011-1728, 2/12/2012). Today, the analytical method used to measure formaldehyde concentration in air consists in a 2,4-dinitrophenylhydrazine (DNPH) sampling cartridge which is analyzed by liquid chromatography after solvent extraction. This method is time consuming, expensive and complicated to perform. The company Ethera develops and markets specific, sensitive sensors for detection and measurement of formaldehyde with passive or active samplers. This sensor is based on a nanoporous matrix containing Fluoral-P (4-amino-3-penten-2-one), which selectively reacts with formaldehyde to produce a colored compound the 3,5-diacetyl-1,4-dihydrolutidine (DDL). DDL is detected at 420nm by optical reading and the difference of the optical density measured before and after exposition of the sensor is directly proportional to the concentration of formaldehyde in air. The purpose of this thesis is to improve the performance of passive samplers. The different phases of the development of passive samplers are studied (design, evaluation in environmental chamber) with different approaches and methodologies. In fact, two axis of study are considered: a theoretical approach and laboratory tests. Theoretical approach will be implemented to optimize a passive sampler or for sizing a new one based on the study of theoretical sampling rates. Laboratory tests will allow to assess metrological parameters of passive samplers (detection limit, sensitivity, repeatability, linearity…) and to estimate effects of exposure factors (temperature, relative humidity, concentration levels …)
Abdelouhab, Malya. "Contribution à l’étude du transfert des polluants gazeux entre le sol et les environnements intérieurs des bâtiments." Thesis, La Rochelle, 2011. http://www.theses.fr/2011LAROS329/document.
Full textRisk assessment tools related to transfers of gaseous pollutant from soil to indoor environments present large uncertainties relative to the knowledge of certain parameters, particularly those relating to the soil-building interface: considering the different basement typology, permeability level of floor. These uncertainties lead to an inaccurate evaluation of the impact of gaseous pollutants on indoor air quality.In order to contribute to the improvement of risk assessment models of gaseous pollutants from the soil, thiswork present in a fist part the development of analytical and numerical models. These models have been adapted to consider the different basement, in order to estimate the transfer of gaseous pollutants from the soil to the building. An analogy with heat transfer phenomena between soil and building is used to develop these models.They predict convective airflow transfers between soils and building, for different soil-building interface.There after, the analytical model has been incorporated into an airflow model. This model enables us to study the impact of different types of basement on the entry of pollutants from soil and the indoor air quality.Besides, experimental works have been made to complete the knowledge of concrete air permeability, because of a lack of data. Furthermore, the convective airflows from soil to building have been quantified experimentally.These airflows have been determined in the experimental house ‘MARIA’ installed in the CSTB. Suchquantification constitutes the first experimental database.Finally, the last part of this work shows a one-year follow-up study about the ability of natural SoilDepressurisation System. This study has been carried out to optimize the solutions of buildings protection from the soil gaseous pollutants
Wifi, Mariam. "Occupants' quality of life experience with sustainable work environments : using a mixed-methods approach to develop a humane and sustainable framework for assessing the indoor environmental quality in office buildings." Thèse, 2016. http://hdl.handle.net/1866/18422.
Full textThis research studies perceived Quality of Life (QoL) and Indoor Environmental Quality (IEQ) of occupants’ in the work environments of sustainable office buildings certified under the Leadership in Energy and Environmental Design (LEED) system (green buildings) and in conventional office buildings. QoL is defined in this research in terms of perceived health, comfort, and productivity. The quality of indoor environments is important because people spend most of their time inside buildings, and in contemporary society, much of the time spent in work environments is in office buildings. In this era of growing concerns about sustainability and the increased awareness of buildings’ negative impacts on occupants, green buildings have been promoted as sustainable solutions to these issues. LEED is the most popular rating system for measuring the performance of green buildings in North America. However, the literature review indicates that there are user complaints about the IEQ of LEED-certified office buildings. LEED-certified buildings are assessed based on technical measures of building performance. This assessment way may create a gap between measured and perceived performance from the user perspective. This raises the question of whether buildings certified with the LEED criteria are humane from the QoL experience of occupants in office buildings. Hence, this research is therefore to propose a new framework that takes into account not only sustainable but also humane factors for evaluating work environments. The study uses a mixed-methods approach – using both quantitative and qualitative methods and proceeds in three phases to comprehensively study occupants’ perceived QoL experience in two LEED and one conventional office building. Phase I uses observations to document the physical work environment and users’ behavioral interactions with the environment. Phase II uses interviews to describe the occupants’ QoL experience, explore the possible IEQ factors shaping their QoL, and to define the constructs of a humane work environment. Questionnaires were distributed concurrently to measure the relationship between occupants’ perceived QoL and IEQ factors that are derived from the literature. Phase III uses focus groups to converge and focus the results of the study. The results are analyzed separately and triangulated using an integrative mixed-methods analysis to interpret, corroborate, conclude, and increase the validation of the findings. The study compared occupants’ perceived QoL in «green» and «conventional» office buildings and revealed 32 quality factors (30 IEQ factors and two others) that influence the QoL experience in office work environments. Also the constructs of what composes a humane work environment based on occupants’ viewpoints have been identified. A new comprehensive, sustainable, and humane framework for assessing IEQ in work environments is developed. This framework guides the relationship between IEQ in work environments and occupants’ QoL as an environment-behavior system.