Author(s): Alba Torres, Mariana Palumbo, Laureano Jiménez
, Assed Naked Haddad, Dieter Boer
Paper category: Proceedings
Book title: Proceedings of the 2nd International Conference
on Bio-Based Building Materials
Editor(s): Sofiane AMZIANE, Mohammed SONEBI and Karine CHARLET
e-ISBN: 978-2-35158-192-6
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 527-532
Total Pages: 6
Language : English

Abstract: Energy efficiency in buildings is a key objective of nowadays policies. To achieve this goal, three
main strategies can be implemented: modify users’ behavior, implement passive measures and
implement active measures. Those strategies and the reduction of the energy consumption
during the use phase imply both, an initial investment and an environmental impact. The
equilibrium between them and their efficiency benefits should be evaluated in advance to any
intervention. The present work implements a passive measure, an insulation layer in the building
envelope, as example. Mathematical programming and multi-objective optimization methodology
is used on a building-like cubicle, which energy consumption has been evaluated combining

EneryPlus and JEPlus software. Polyurethane and seven commercial and experimental bio-
based thermal insulation materials are compared. The cost and the environmental impact

associated to each solution have been quantified using the life cycle assessment methodology.
The results show that bio-based materials can reduce the cost and the environmental impact
compared to conventional insulating materials. In our study, hemp offered the most balanced
solution, achieving a reduction of 14% and 36% in cost and environmental impact respectively
for the climate in Lleida.

Online publication :2017
Publication type :full_text
Public price (Euros) : 0.00

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