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Aelenei, Daniel, Laura Aelenei, Eike Musall, Eduard Cubi, Josef Ayoub, and Ana Belleri. "Design strategies for non-residential zero - energy buildings - Lessons learned from Task 40/Annex 52 ?Towards Net Zero - Energy Solar Buildings?,." CLIMA 2013. 978-80-260-4001-9. 2013. Abstract
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Aelenei, Laura, A. M. Rodrigues, and Daniel Aelenei. "The Ventilation Effect on the Thermal Performance of a Cavity Wall: Numerical and Experimental Analysis." ROOMVENT 2004 - 9th International Conference on Air Distribution in Rooms. 972-07973-2-3. 2004. Abstract
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Aelenei, L., D. Aelenei, H. Gon, R. Lollini, E. Musall, A. Scognamiglio, E. Cubi, and M. Noguchi. "Design issues for net zero-energy buildings." Open House International. 38 (2013): 7-14. AbstractWebsite

Net Zero-Energy Buildings (NZEBs) have received increased attention in recent years as a result of constant concerns about energy supply constraints, decreasing energy resources, increasing energy costs and the rising impact of greenhouse gases on world climate. Promoting whole building strategies that employ passive measures together with energy efficient systems and technologies using renewable energy became a European political strategy following the publication of the Energy Performance of Buildings Directive recast in May 2010 by the European Parliament and Council. However designing successful NZEBs represents a challenge because the definitions are somewhat generic while assessment methods and monitoring approaches remain under development and the literature is relatively scarce about the best sets of solutions for different typologies and climates likely to deliver an actual and reliable performance in terms of energy balance (consumed vs generated) on a cost-effective basis. Additionally the lessons learned from existing NZEB examples are relatively scarce. The authors of this paper, who are participants in the IEA SHC Task 40-ECBCS Annex 52, "Towards Net Zero Energy Solar Buildings", are willing to share insights from on-going research work on some best practice leading NZEB residential buildings. Although there is no standard approach for designing a Net Zero-Energy Building (there are many different possible combinations of passive and efficient active measures, utility equipment and on-site energy generation technologies able to achieve the net-zero energy performance), a close examination of the chosen strategies and the relative performance indicators of the selected case studies reveal that it is possible to achieve zero-energy performance using well known strategies adjusted so as to balance climate drivendemand for space heating/cooling, lighting, ventilation and other energy uses with climate-driven supply from renewable energy resources.

Aelenei, Daniel, and F. M. A. Henriques. "Refor." PATORREB 2006. 972-752-085-5. 2006. Abstract
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Aelenei, Daniel, A. Canha da Piedade, and A. M. Rodrigues. "A Numerical and Experimental Investigation of a Flat Plate Collector." EPIC 2002-Energy Efficient & Healthy Buildings in Sustainable Cities Proceedings. 2-86834-118-7. 2002. Abstract
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Aelenei, D., R. Amaral Lopes, C. Silva, L. Aelenei, F. Costa, N. Majdalani, T. Simoes, J. Martins, and H. Goncalves. "Mapping Flexibility of Urban Energy Systems (FIRST) project: Rationale and study design of an exploratory project." IOP Conference Series: Earth and Environmental Science. Vol. 294. 2019. Abstract
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Aelenei, Daniel, Hugo de Azevedo Leal, and Laura Aelenei. "The use of attached-sunspaces in retrofitting design: the case of residential buildings in Portugal." Energy Procedia. 48 (2014): 1436-1441. Abstract

This study addresses the energetic performance of an attached-sunspace applied to an existing residential building in Portugal. Four configurations (two attached, one integrated and one partially integrated) are studied in six different climatic zones. In addition other key parameters are considered such as ventilation (with or without natural ventilation), shading devices (one external and two internal configurations), number of glazed surface layers (single glazed and double glazed) and orientation (South, East and West). The thermal performance analysis, carried out using a dynamic simulation code, proved that energy savings for retrofitting design can be very important and that in climates with warm summers the risk of overheating can be considerably diminished through an accurate analysis based on modeling.

Aelenei, Daniel RCCTE Light. ver1 ed. Departamento de Engenharia Civil, Campus de Caparica 2829-516, Caparica: Faculdade de Ciências e Tecnologia, 2012. Abstract

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Aelenei, Laura, A. M. Rodrigues, and Daniel Aelenei. "An Experimental Study of a Naturally Ventilated Cavity Wall." AIVC BETEC 2003 Ventilation - Humidity Control and Energy Conference. 2-96000355-4-2. 2003. Abstract
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Aelenei, Laura, Helder Gon, and Daniel Aelenei. "The nZEBs in the near Future - Overview of definitions and guidelines towards existing plans for increasing nZEBs." Portugal SB13 - Contribution of sustainable building to meet EU 20-20-20 targets. 978-989-96543-7-2. 2013. Abstract
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Aelenei, Daniel, and Fernando MA Henriques. "Analysis of the condensation risk on exterior surface of building envelopes." Energy and Buildings. 40 (2008): 1866-1871.
Aelenei, D., R. A. Lopes, L. Aelenei, and H. Gonçalves. "Investigating the potential for energy flexibility in an office building with a vertical BIPV and a PV roof system." Renewable Energy (2019): 189-197. AbstractWebsite
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Aelenei, Daniel, Susana Azevedo, João Viegas, Ana Mendes, Ana Luisa Papoila, Manuela Cano, Pedro Martins, and Nuno Neuparth. "Environment and Health in Children Day Care Centres in Portugal - results from phase II on the ventilation characteristics of 16 schools." CLIMA 2013. 978-80-260-4001-9. 2013. Abstract
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Aelenei, Daniel, Laura Aelenei, and Catarina Pacheco Vieira. "Adaptive Façade: Concept, Applications, Research Questions." Energy Procedia. 91 (2016): 269-275. AbstractWebsite

Abstract Adaptive building envelopes can provide improvements in the building energy efficiency and economics, through their capability to change their behaviour in real time according to indoor-outdoor parameters, by means of materials, components and systems. Therefore, adaptive façades can make a significant and viable contribution to meeting the EU's 2020 targets. Several different types of adaptive façade concepts have already been developed, and an increase in emerging, innovative solutions is expected for the near future. The objective of this paper is to contribute to these developments by presenting the findings of an analysis of the existing concepts and case studies and by proposing a new approach for characterization of these elements.

Aelenei, Daniel, Laura Aelenei, and Filipe da Costa Santos. "Standard unretrofitted buildings and net-zero energy concept." EUROSUN 2010. 9783901425134. 2010. Abstract
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Aelenei, L., J. Ayoub, and D. Aelenei. "Net Zero Residential Building Case Studies - ECBCS - SHC Joint Project Update: Annex 52- Task 40." IEA ECBCS news. 56 (2012): 10-12. AbstractWebsite

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Aelenei, Laura, Roberto Lollini, Helder Gon, Daniel Aelenei, Masa Noguchi, Michael Donn, and Fran Garde. "Passive cooling approaches in net-zero energy solar buildings: lessons learned from demonstration buildings." CISBAT 2011 - CleanTec for Sustainable Buildings. 978-2-8399-0906-8. 2011. Abstract
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Aelenei, Daniel, and Luis Roriz. "Performance of an air based radiative cooling system." HB 2006 - Healthy Buildings. 978-989-95067-1-8. 2006. Abstract
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Aelenei, Daniel, and F. M. A. Henriques. "Avaliação do risco de ocorrência de condensações nas fachadas dos edifícios." PATORREB 2009. 2009. Abstract

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Aelenei, Daniel, A. Canha da Piedade, and A. M. Rodrigues. "Analysis of a Ventilated Residential Building by Means of an Air Based Radiative Cooling System." AIVC BETEC 2003 Ventilation - Humidity Control and Energy Conference. 2003. Abstract
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Araujo-Martins, J., Carreiro P. Martins, J. Viegas, D. Aelenei, MM Cano, JP Teixeira, P. Paixão, AL Papoila, P. Leiria-Pinto, C. Pedro, and others. "Environment and Health in Children Day Care Centres (ENVIRH)–Study rationale and protocol." Revista portuguesa de pneumologia. 20 (2014): 311-323. Abstract

Background Indoor air quality (IAQ) is considered an important determinant of human health. The association between exposure to volatile organic compounds, particulate matter, house dust mite, molds and bacteria in day care centers (DCC) is not completely clear. The aim of this project was to study these effects. Methods ? study design This study comprised two phases. Phase I included an evaluation of 45 DCCs (25 from Lisbon and 20 from Oporto, targeting 5161 children). In this phase, building characteristics, indoor CO2 and air temperature/relative humidity, were assessed. A children's respiratory health questionnaire derived from the ISAAC (International Study on Asthma and Allergies in Children) was also distributed. Phase II encompassed two evaluations and included 20 DCCs selected from phase I after a cluster analysis (11 from Lisbon and 9 from Oporto, targeting 2287 children). In this phase, data on ventilation, IAQ, thermal comfort parameters, respiratory and allergic health, airway inflammation biomarkers, respiratory virus infection patterns and parental and child stress were collected. Results In Phase I, building characteristics, occupant behavior and ventilation surrogates were collected from all DCCs. The response rate of the questionnaire was 61.7% (3186 children). Phase II included 1221 children. Association results between DCC characteristics, IAQ and health outcomes will be provided in order to support recommendations on IAQ and children's health. A building ventilation model will also be developed. Discussion This paper outlines methods that might be implemented by other investigators conducting studies on the association between respiratory health and indoor air quality at DCC.

Azevedo, Susana, João Viegas, Daniel Aelenei, Ana Luisa Papoila, and Ana Mendes. "Environment and health in children day care centres results from phase I - preliminary analysis of buildings physical characteristics." The 10th International Conference on Industrial Ventilation. 2012. Abstract
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Cano, Manuela, Susana Nogueira, Ana Luisa Papoila, F. Aguiar, Pedro Martins, J. Marques, Iolanda Caires, J. Martins, C. Pedro, P. Paixão, J. Rosado-Pinto, Paula Leiria-Pinto, Daniel Aelenei, Ana Mendes, João Teixeira, M. C. Proença, and Nuno Neuparth. "Indoor Air Quality in Portuguese Children Day Care Centers ? ENVIRH Project." The Second International Conference on Building Energy and Environment (COBEE). 978-0-9816881-9-0; 0-9816881-9-5. 2012. Abstract

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Carreiro-Martins, Pedro, João Viegas, Ana Luisa Papoila, Daniel Aelenei, Iolanda Caires, José Araújo-Martins, João Gaspar-Marques, Maria Manuela Cano, Ana Sofia Mendes, Daniel Virella, and others. "CO2 concentration in day care centres is related to wheezing in attending children." European journal of pediatrics. 173 (2014): 1041-1049.