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Energies 2017, 10(4), 456; doi:10.3390/en10040456

Methodology Applied to the Evaluation of Natural Ventilation in Residential Building Retrofits: A Case Study

GIR Arquitectura & Energía, Universidad de Valladolid, ETS Arquitectura, Valladolid 47014, Spain
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Academic Editor: Hossam A. Gabbar (Gaber)
Received: 22 December 2016 / Revised: 11 March 2017 / Accepted: 18 March 2017 / Published: 1 April 2017
(This article belongs to the Special Issue Energy Conservation in Infrastructures 2016)
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Abstract

The primary objective of this paper is to present the use of a steady model that is able to qualify and quantify available natural ventilation flows applied to the energy retrofitting of urban residential districts. In terms of air quality, natural ventilation presents more efficient solutions compared to active systems. This method combines numeric simulations, through the utilization of Ansys Fluent R15.0® and Engineering Equation Solver EES®, with on-site pressurization tests. Testing consists of the application of the seasonal pressure gradient on the building’s envelope and the calculation of the ventilation flows in three climatic representative conditions (summer, winter, and annual average). Through the implementation of this methodology to existing buildings it is possible to evaluate the influence of the built environment, as well as key parameters (relative height of the dwelling, number of vertical ventilation ducts, and airtightness of windows) of available natural ventilation. View Full-Text
Keywords: natural ventilation; building retrofit; indoor air quality; pressurization test natural ventilation; building retrofit; indoor air quality; pressurization test
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Meiss, A.; Padilla-Marcos, M.A.; Feijó-Muñoz, J. Methodology Applied to the Evaluation of Natural Ventilation in Residential Building Retrofits: A Case Study. Energies 2017, 10, 456.

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