Browsing by Author "Camelo, Susana"
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- Ação concertada das renováveis participação portuguesaPublication . Joyce, A; Camelo, Susana; Gírio, FranciscoRESUMO: A Ação Concertada das Renováveis (CA-RES) é uma iniciativa conjunta de 27 Estados-Membros da EU, da Noruega, da Islândia e da Comissão Europeia (DG ENER, EASME), coordenada pela Agência Austríaca de Energia com vista a apoiar a implementação da Diretiva Europeia de Energias Renováveis. O projeto foi cofinanciado pelo Programa Horizonte 2020 da União Europeia e corresponde ao item B.2.2. “Coordination of Renewable Energy policies development and implementation through concerted actions with Member States” of the HORIZON 2020 WORK PROGRAMME 2014–2015 10. Secure, clean and efficient energy. A terceira fase da Ação Concertada (CA-RES 3) apoia a transposição da Diretiva das Energias Renováveis 2009/28/CE e a sua reformulação na nova Diretiva 2018/2001/UE (RED II). Os objetivos da Concerted Action estando diretamente relacionados com a transposição e implementação da Diretiva RES permitem também fomentar sinergias e criar novas oportunidades para explorar abordagens comuns em áreas específicas das energias Renováveis.
- Assessement of the Portuguese building thermal code: Newly revised requirements for cooling energy needs used to prevent the overheating of buildings in the summerPublication . Panão, Marta Oliveira; Camelo, Susana; Goncalves, HelderIn this paper, cooling energy needs are calculated by the steady-state methodology of the Portuguese building thermal code. After the first period of building code implementation, re-evaluation according to EN ISO 13790 is recommended in order to compare results with the dynamic simulation results. From these analyses, a newly revised methodology arises including a few corrections in procedure. This iterative result is sufficiently accurate to calculate the building’s cooling energy needs. Secondly, results show that the required conditions are insufficient to prevent overheating. The use of the gain utilization factor as an overheating risk index is suggested, according to an adaptive comfort protocol, and is integrated in the method used to calculate the maximum value for cooling energy needs. This proposed streamlined method depends on reference values: window-to-floor area ratio, window shading g-value, integrated solar radiation and gain utilization factor, which leads to threshold values significantly below the ones currently used. These revised requirements are more restrictive and, therefore, will act to improve a building’s thermal performance during summer. As a rule of thumb applied for Portuguese climates, the reference gain utilization factor should assume a minimum value of 0.8 for a latitude angle range of 40-41ºN, 0.6 for 38-39ºN and 0.5 for 37ºN.
- Comportamento térmico de edifícios solares passivos - ficha 3.8Publication . Goncalves, Helder; Camelo, Susana
- Conversão de edifícios existentes em nzeb através da integração de energias renováveis, de micro-redes e de soluções de eficiência energéticaPublication . Estanqueiro, Ana; Joyce, A; Aelenei, Laura Elena; Facão, Jorge; Rodrigues, Carlos; Loureiro, David; Teixeira, J.; Correia, J.B.; Ramalho, Álvaro; Camelo, Susana; Silva, Carlos; Neto, Rui C.RESUMO: O Projeto IMPROVEMENT “Integration of combined cooling, heating and power microgrids in zero-energy public buildings under high power quality and continuity of service requirements” é um projeto financiado pelo Programa INTERREG SUDOE, de cariz marcadamente multidisciplinar e que reúne competências da área de integração e modelação de sistemas energéticos, da gestão de energia em edifícios, de energias renováveis, micro-redes inteligentes e sistemas de monitorização e gestão de consumo. Tem ainda como objetivo geral renovar edifícios públicos existentes, convertendo-os em edifícios com necessidades de energia quase nulas (NZEB), e para tal integra micro-redes com fontes renováveis e geração combinada de calor, frio, eletricidade, equipadas com sistemas de armazenamento.
- Os edifícios bioclimáticos e a integração das energias renováveis e os sistemas energéticos : Livro de apresentações do seminárioPublication . Goncalves, Helder; Camelo, Susana
- Em direcção à Energia Zero/Towards Zero EnergyPublication . Goncalves, Helder; Ramalho, Álvaro; Gano, António; Correia, João Bernardino; Graça, João Mariz; Aelenei, Laura Elena; Panão, Marta Oliveira; Camelo, Susana
- Energy Efficiency Plan in Public Sector in PortugalPublication . Camelo, SusanaJanuary 2011 the Energy Efficiency Programme in Management Public - Eco.AP Project, a rolling program, to: increase the energy efficiency of Public Administration services, buildings and equipment, target of 30% by 2020, contracts with ESCOs to obtain, in a cost-effective, improvements in efficiency.
- Evolução do Regulamento das Características de Comportamento Térmico dos Edifícios (RCCTE): Caso de EstudoPublication . Camelo, Susana; Horta, Cristina; Ramalho, Álvaro; Graça, João Mariz; Goncalves, HelderNesta apresentação faz-se a aplicação, para um mesmo apartamento, do Regulamento das Características do Comportamento dos Edifícios (RCCTE) apresentando em paralelo as metodologias preconizadas nas versões do RCCTE de 1990e de 2006. A análise incide num apartamento de tipologia T1 de um Edifício localizado na cidade de Lisboa (zona climática I1-V2 Sul). O apartamento T1-A constitui uma única zona independente (RCCTE-1990) / fracção autónoma (RCCTE 2006). A caracterização térmica da envolvente para aplicação do RCCTE foi feita com base nas dois documentos do LNEC ITE 28 e ITE 50, respectivamente para o RCCTE de 1990 e para o RCCTE de 2006. Procurar-se-á relativizar o peso dos diferentes elementos da envolvente em termos das perdas e dos ganhos e por fim estimar, para ambas as versões, as necessidades nominais de energia útil para aquecimento e arrefecimento e, para a versão de 2006 ainda as necessidades nominais de energia útil para produção de água quente sanitária e de energia primária.
- From Summer cooling to sustainable Summer comfort in buiding thermal regulationPublication . Camelo, Susana; Goncalves, Helder; Richard, Mathieu; Laia, CarlosThe introduction of the “Energy Performance Building Directive” (EPBD) [1] and consequently the new National Building Regulation [2] in the Member States (MS) lead to a totally new legal situation concerning, requirements and procedures on the building sector. Under the scope of an EU project called Keep Cool, a survey was undertaken in order to review the energy efficiency criteria, in the national building codes, concerning summer comfort or mechanical cooling system in order to elaborate recommendations towards a sustainable summer comfort. This paper presents the results of this survey [3] carried out under the participate countries (7 countries), and the main goals were the following to update the information regarding the new national building regulations to have a first insight regarding the requirements and summer calculations adopted in each country and to identify the positive and the negative aspects of the different regulations and selection of the best practice examples, in order to draw up recommendations for introducing sustainable summer comfort measures into future national building codes. A comparative analysis has started with some very precise answers and had permitted to carry out a comparative analysis between some national building codes. A review was undertaken concerning envelope constructive solutions (opaque and transparent), thermal mass, ventilation rates and the corresponding values limits.
- How low should be the energy required by a nearly Zero-Energy Building? The load/generation energy balance of Mediterranean housingPublication . Panão, Marta Oliveira; Rebelo, Miguel P.; Camelo, SusanaDirective 2010/31/EU adopted that by the end of 2020 all new buildings should be nearly Zero-Energy Buildings (nZEB) and Member States should achieve cost-optimal levels by ensuring minimum energy performance requirements for buildings. This paper discusses how low should be the energy required by a nZEB, in the context of housing energy consumption in a Mediterranean climate (Lisbon). For selected houses built after 1990, the calculated primary energy loads for regulated uses – heating, cooling and domestic hot water – are found to be below 90 kWh/(m2 year). Applying the cost-optimal solutions of thermal insulation and glazing type and considering energy efficiency improved systems, this study concludes that housing energy loads are ‘low’ for the indicative range of 70 kWh/(m2 year) for regulated uses or 100–110 kWh/(m2 year) for total uses, taking primary energy indicators (PEI) from EN 15603. Assuming PEI from Passive House Planning Package or those to be assumed in Portugal for 2013, the threshold decreases to 60 kWh/(m2 year) for regulated uses or 90–100 kWh/(m2 year) for total uses. Only the first nZEB condition is explored by this paper. The second condition requires that the nZEB energy load is covered by a ‘significant’ part of renewable energy sources produced on-site or ‘nearby’.
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