Building Sector: The Different Ways to Improve Their Energetic Efficiency

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Clito Afonso (Author) FEUP; Ricardo Pereira (Adapter) Other

Journal

Title: Journal of Environmental Science and Engineering

Serial No. 47 Vol. 5 No. 5

Pages: 243-253

ISSN: 0367-827X

Publisher: National Environmental Engineering Research Institute

Indexing

ProQuest

EBSCO

Other information

DOI: 10.17265/2162-5263/2016.05.005

Abstract (EN): The building sector has a significant weight in the global energy consumption in almost of the countries. So, there is a high potential for increasing its energy efficiency. With the enforcement of the energetic certification, it was tried to select different solutions that presents less energy consumption and waste, as well as an effective reduction of CO2 emissions. This work fits in this perspective, since the main goal is to evaluate the contribution of passive and active solutions that can be used in buildings for the improvement of its energetic efficiency, as well as to evaluate the contribution of renewable energy sources. Contribution of solar systems for hot water heating and electric energy production has been studied, as well as cogeneration, Combined Heat and Power (CHP). The case studied is a hotel. To improve the building performance, there were proposed several changes, with the goal of evaluating the contribution of the different solutions proposed. It was concluded that they contribute to a reduction of thermal needs of 25.2% and avoided emissions of CO2 is 30.4%. The analysis of the implementation of trigeneration, Combined Heat, Cooling and Power (CHCP) turns it executable. The payback period is less than 8 years.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11