J
J. L. Alexandre
Researcher at University of Porto
Publications - 12
Citations - 99
J. L. Alexandre is an academic researcher from University of Porto. The author has contributed to research in topics: Energy consumption & Convection. The author has an hindex of 4, co-authored 12 publications receiving 82 citations.
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Journal ArticleDOI
Compact buried pipes system analysis for indoor air conditioning
TL;DR: In this paper, a study considering the use of a heat exchanger with a multiple layer configuration is presented, comparing it with a single layer of pipes and describing the major performance differences.
Journal ArticleDOI
Energy Consumption Variation due to Different Thermal Comfort Categorization Introduced by European Standard EN 15251 for New Building Design and Major Rehabilitations.
A. Sfakianaki,M. Santamouris,M. Hutchins,F. Nichol,Michael T. Wilson,Lorenzo Pagliano,Wilfried Pohl,J. L. Alexandre,A. Freire +8 more
TL;DR: In this paper, the authors presented and provided information about the energy implications of the Standard and in particular whether the Standard is encouraging high-energy buildings in the case of new buildings and major rehabilitation.
Proceedings ArticleDOI
Numerical analysis of convective heat transfer in nanofluid
TL;DR: In this article, the authors analyzed the heat convection through nanofluids, Al2O3 nanoparticle-water mixture (7% of particle volume concentration), flowing inside an open system.
Journal ArticleDOI
A methodology to empower citizens towards a low-carbon economy. The potential of schools and sustainability indicators.
Jesus Lizana,Vítor Manteigas,Ricardo Chacartegui,Joana Lage,J.A. Becerra,Patrice Blondeau,Ricardo Rato,Filipe Samuel Silva,Ana Rosa Gamarra,Israel Herrera,Margarida Gomes,Amaia Fernandez,Celine Berthier,Karla Gonçalves,J. L. Alexandre,Marina Almeida-Silva,Susana Marta Almeida +16 more
TL;DR: In this article, a methodology to measure and promote sustainability in schools has been proposed and evaluated, aiming at showing the environmental performance and informing of potential environmental savings, with an average improvement of 10% in the global performance of schools after one year.
Journal ArticleDOI
Impact of European standard EN15251 in the energy certification of services buildings—A Portuguese study case
TL;DR: In this article, a case study was analyzed using the dynamic simulation software TRNSYS, the Transient Energy System Simulation Tool, to evaluate the impact of the EN15251 application in commercial buildings.