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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

AnÃlise do conforto tÃrmico em habitaÃÃes de interesse social no Bairro SumarÃ, MunicÃpio de Sobral, Cearà / Analysis of thermal comfort in social housing in the neighborhood SumarÃ, Municipality of Sobral, CearÃ

Marta NÃlia Alves Braga 13 August 2013 (has links)
CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior / One of the roles of housing is to protect individuals from the weather to which they are subject, saving inside a protection against the severities of the climate. When the house does n ot respect this principle of comfort, individuals are subject to the emergence of physical or psychosocial disorders. Studies show that thermal comfort directly influences productivity at work (Oliveira et al, 2010.), Yield of studies (Batiz; GOEDERT; MORS CH; Kasmirski - Jr; Venske, 2009) and especially in population health (Araujo, 2012). In this context, the main residents are affected as to mitigate the discomfort in their homes, they need to use artificial means of cooling, almost always, inconsistent wit h its income group. The proposed study aims to evaluate the thermal performance of single - storey and single - family dwellings built and in use Sumarà neighborhood in the city of Sobral / CearÃ, and the thermal comfort of its users. To this end, we preserve housing characteristics of the original design were chosen. Selected dwellings are part of a city program to build housing in order to meet the population living in risk areas prone to flooding. The method used for performance evaluation based on requireme nts and criteria proposed by the NBR 15220 (ABNT, 2005), which are obtained from the mathematical calculation of thermal parameters that consider the performance of the building components. It was also evaluated the perceptions of users through questionnai res that were applied in July and August 2013 The degree of satisfaction was checked according to the Estimated Mean Vote (PMV - Predicted Mean Vote) suggested by Fanger and regulated by the International 7730 Organization for Standardization (ISO, 2005) a nd American Society of Heating, Refrigerating and Air - Conditioning Engi neers (ASHRAE, 2004). In parallel, measurements were made of the internal and external temperatures using thermo - hygrometer to compare with the opinion of the respondents. The results show that the tested housing have poor thermal performance. Regarding the results of the interviews, it can be noticed that the calculated thermal performance reflects the opinion of respondents who consider their thermally uncomfortable dwellings. / Um dos papÃis da moradia à resguardar os indivÃduos das intempÃries a que estÃo sujeitos, conservando em seu interior uma proteÃÃo contra as severidades do clima. Quando a moradia nÃo respeita esse princÃpio de conforto, os indivÃduos ficam sujeitos ao surgimento de patologias fÃsicas ou psicossociais. Estudos mostram que o conforto tÃrmico influencia diretamente na produtividade no trabalho (OLIVEIRA et al., 2010), no rendimento dos estudos (BATIZ; GOEDERT; MORSCH; KASMIRSKI-Jr; VENSKE, 2009) e, principalmente na saÃde da populaÃÃo (ARAUJO, 2012). Nesse contexto, os moradores sÃo os principais afetados, pois, para mitigar a sensaÃÃo de desconforto em suas habitaÃÃes, necessitam utilizar meios para climatizaÃÃo artificial, quase sempre, incompatÃvel com a sua faixa de renda. O trabalho proposto tem como objetivo, avaliar o desempenho tÃrmico de habitaÃÃes tÃrreas e unifamiliares construÃdas e em uso no bairro SumarÃ, no municÃpio de Sobral/CearÃ, e o conforto tÃrmico de seus usuÃrios. Para tanto, foram escolhidas habitaÃÃes que preservassem caracterÃsticas do projeto original. As habitaÃÃes selecionadas fazem parte de um programa municipal para construÃÃo de moradias, a fim de atender a populaÃÃo que vive em Ãrea de risco sujeitas a inundaÃÃes. O mÃtodo utilizado para a avaliaÃÃo de desempenho baseia-se em requisitos e critÃrios propostos pela NBR 15220 (ABNT, 2005), que sÃo obtidos a partir do cÃlculo matemÃtico de parÃmetros tÃrmicos que consideram o desempenho de componentes da edificaÃÃo. Avaliou-se, tambÃm, a percepÃÃo dos usuÃrios atravÃs de questionÃrios que foram aplicados nos meses de julho e agosto de 2013. O grau de satisfaÃÃo foi verificado segundo o Voto MÃdio Estimado (PMV â Predicted Mean Vote) sugerido por Fanger e normatizado pela International Organization for Standardization 7730 (ISO, 2005) e American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE, 2004). Em paralelo, fizeram-se aferiÃÃes das temperaturas internas e externas usando termo-higrÃmetro para comparar com a opiniÃo dos entrevistados. Os resultados mostram que as habitaÃÃes avaliadas possuem desempenho tÃrmico insatisfatÃrio. Quanto aos resultados das entrevistas, pode-se perceber que o desempenho tÃrmico calculado reflete a opiniÃo dos entrevistados que consideram suas habitaÃÃes termicamente desconfortÃveis.

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