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Author(s): Clito Afonso
Contributor(s): Ricardo Pereira
Title: Improvement of Energetic Efficiency of Buildings: Contributions of Passive and Active Solutions
Issue Date: 2016
Abstract: The building sector has a significant weight in energy consumption and a high potential for increasing its energy efficiency.With the enforcement of the energetic certification, it has been tried to find and select different solutions that presents less energyconsumption and waste, which translates into an effective reduction of CO2 emissions. It is in this perspective that this work fits, sinceits aim is to evaluate the contribution of passive and active solutions of a hotel located in Portugal, for the improvement of the energeticefficiency, as well as to evaluate the contribution of some renewable energy sources. Besides, the cogeneration remains as the mosteffective technology on the conversion of primary energy into electricity and heat. The application of cogeneration technologies in thebuildings sector gains notability facing the rise of fuel prices. To improve the building performance, there were made several changeson the dynamic model used with the goal of evaluating the contribution of different solutions. It was concluded that they contribute to areduction of thermal needs of 25.2% and avoided emissions of equivalent tons of CO2 of 30.4%.The analysis of the technical/economicviability of the implementation of the CHCP becomes feasible with an absorption chiller to produce cooling. The payback period is lessthan 8 years which proves that it is an economic viability of this technology.
Document Type: Artigo em Revista Científica Internacional
Rights: openAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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