Paper published in a book (Scientific congresses and symposiums)
Life cycle assessment of a nearly zero-energy neighborhood in Belgium
Kameni Nematchoua, Modeste; Reiter, Sigrid
2019In Proceedings of the International Conference on Natural Science and Environment 2019
Peer reviewed
 

Files


Full Text
PAPER.pdf
Author preprint (333.54 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
nearly zero-energy; neighborhood
Abstract :
[en] Life Cycle Analysis (LCA) is the most appropriate method to quantify scientifically the environmental and health impacts of buildings. The purpose of this research is to determine, at the neighborhood scale, the most important sources of buildings’ environmental impacts, based on twelve different environmental impacts including the health impact. This paper compares the impacts on the environment generated by an existing energy efficient neighbourhood, where all the buildings should be passive, and its transformation into a zero-energy district thanks to the addition of numerous photovoltaic panels on the roofs of the buildings. For that, we used the combination of three simulation tools — ALCYONE, COMFIE-PLEIADES and nova-EQUER for studying the Life Cycle Assessment (LCA) of buildings and networks (roads, parking, etc). An eco-neighbourhood, located near the University of Liege in Belgium, has been selected as the case study. The buildings heating modelled by the dynamic thermal simulation has an average heating load of 15.4 kWh/m².year.Photovoltaic panels on all the roofs of the buildings allow achieving a nearly zero-energy neighbourhood and can mitigate up to 25% of greenhouse gas emissions of the passive neighborhood and reduce 5% of its health impacts. However, the photovoltaic panels have a mixed environmental record for other indicators, with a majority of the environmental impacts being improved compared to the passive neighborhood, but four of the twelve environmental impacts studied being increased.We also notice the strong predominance of the occupation phase on the life-cycle environmental impacts of this nearly zero-energy neighborhood. The use phase concentrates more than 70% of the greenhouse gas production and of the cumulative total energy demand of the neighborhood calculated during 80 years. Moreover, the results show a very strong participation of the mobility component and the household waste management component, in the LCA, at the neighbourhood level. The cumulative energy demand from inhabitants’ mobility and waste management during the use phase was 60% of the total cumulative energy demand of the neighbourhood, over its entire life cycle. The results show also that an improved mobility management allows reducing all the environmental impacts of the neighborhood and may reduce its health impacts up to 32%.
Research center :
LEMA
Lepur : Centre de Recherche sur la Ville, le Territoire et le Milieu rural - ULiège
Disciplines :
Architecture
Author, co-author :
Kameni Nematchoua, Modeste ;  Université de Liège - ULiège > Département ArGEnCo > Urbanisme et aménagement du territoire
Reiter, Sigrid  ;  Université de Liège - ULiège > Département ArGEnCo > Urbanisme et aménagement du territoire
Language :
English
Title :
Life cycle assessment of a nearly zero-energy neighborhood in Belgium
Publication date :
16 May 2019
Event name :
International Conference on Natural Science and Environment,
Event place :
New York, United States
Event date :
16th- 17th July, 2019
Audience :
International
Main work title :
Proceedings of the International Conference on Natural Science and Environment 2019
Peer reviewed :
Peer reviewed
Available on ORBi :
since 21 May 2019

Statistics


Number of views
159 (7 by ULiège)
Number of downloads
104 (6 by ULiège)

Bibliography


Similar publications



Contact ORBi