Publicação
Avaliação da viabilidade de um sistema de ventilação natural: aplicação à sala de estudo do Edifício I do ISCTE-IUL
| Resumo: | The buildings sector accounted for 40% of final energy consumption in the EU in 2013. This makes it one of the main targets for the application of energy efficiency measures. In recent years there has been a reduction of energy consumption in this sector. However, this is more noticeable in domestic buildings than in office buildings, since any energy savings in this case have a greater impact on the occupants. One of the goals of the developed work was to understand how energy is used in a service building. The studied building is located at a university campus and has various types of use, from bars to offices, classrooms and auditoriums. Some rationalization measures of energy consumption were also studied. From the dynamic simulation of a representative model of the analyzed building was possible to disaggregate energy consumption by end use. The total energy consumption is divided into 27% for lighting, 44% for cooling and 29% for equipment and others. Based on the energy performance regulation for this type of buildings, the building was classified as B-, it can became classified as B if the studied energy efficiency measures were applied. It was also evaluated the potential use of a natural ventilation system in the building's Study Room. If a natural ventilation system is used, the comfort conditions are not guaranteed for the whole period of occupation. However it can do it in 90% of the occupied period without any energy consumption associated. In order to keep the interior comfort conditions during the hours of occupation of the Study Room, the use of a mechanical system results in an energy consumption of approximately 10.8 MWh. The possibility of using a hybrid system was also evaluated. For this case, preference is given to natural ventilation system and the mechanical system is only used as a backup option. When compared to a conventional mechanical system, this can achieve savings from 50% to 80%, depending on the inside temperature set point. |
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| Autores principais: | Carvalho, Francisco Moreira de |
| Assunto: | Ventilação natural EnergyPlus Simulação dinâmica Certificação energética Teses de mestrado - 2015 |
| Ano: | 2015 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | português |
| Origem: | Repositório da Universidade de Lisboa |
| Resumo: | The buildings sector accounted for 40% of final energy consumption in the EU in 2013. This makes it one of the main targets for the application of energy efficiency measures. In recent years there has been a reduction of energy consumption in this sector. However, this is more noticeable in domestic buildings than in office buildings, since any energy savings in this case have a greater impact on the occupants. One of the goals of the developed work was to understand how energy is used in a service building. The studied building is located at a university campus and has various types of use, from bars to offices, classrooms and auditoriums. Some rationalization measures of energy consumption were also studied. From the dynamic simulation of a representative model of the analyzed building was possible to disaggregate energy consumption by end use. The total energy consumption is divided into 27% for lighting, 44% for cooling and 29% for equipment and others. Based on the energy performance regulation for this type of buildings, the building was classified as B-, it can became classified as B if the studied energy efficiency measures were applied. It was also evaluated the potential use of a natural ventilation system in the building's Study Room. If a natural ventilation system is used, the comfort conditions are not guaranteed for the whole period of occupation. However it can do it in 90% of the occupied period without any energy consumption associated. In order to keep the interior comfort conditions during the hours of occupation of the Study Room, the use of a mechanical system results in an energy consumption of approximately 10.8 MWh. The possibility of using a hybrid system was also evaluated. For this case, preference is given to natural ventilation system and the mechanical system is only used as a backup option. When compared to a conventional mechanical system, this can achieve savings from 50% to 80%, depending on the inside temperature set point. |
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