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An experimental investigation into the comparative hygrothermal performance of wall panels incorporating wood fibre, mineral wool and hemp-lime

Latif, Eshrar, Lawrence, Michael, Shea, Andy and Walker, Peter 2018. An experimental investigation into the comparative hygrothermal performance of wall panels incorporating wood fibre, mineral wool and hemp-lime. Energy and Buildings 165 , pp. 76-91. 10.1016/j.enbuild.2018.01.028

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Abstract

Three wall panels of identical calculated U-value were simultaneously assessed in a large dual environmental chamber under a number of steady state and dynamic hygrothermal boundary conditions. This study used large-scale wall elements under identical controlled conditions in order to eliminate uncontrollable variables normally encountered in full-scale studies. The following panels were tested: Mineral Wool Panel, Wood Fibre Panel and the Biond Panel (an assembly of wood fibre and hemp-lime). Within the limits of the error range of the calculation, the measured U-value was same for all test panels when assessed under steady state and dynamic hygrothermal boundary conditions. It was however observed that in a boundary condition simulating intermittent heating, the Biond panel showed the highest heat storing and releasing capability whereas the Mineral Wool Panel showed the lowest. In terms of moisture management, the Biond panel exhibited the highest moisture dampening ability within the panel structure. Higher thermal and hygric inertia of the Biond panel may be useful in mitigating overheating of dwellings and reducing interstitial condensation.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Architecture
Publisher: Elsevier
ISSN: 0378-7788
Funders: European Union Eco Innovation
Date of First Compliant Deposit: 23 January 2018
Date of Acceptance: 22 January 2018
Last Modified: 28 Jun 2019 23:54
URI: http://orca.cf.ac.uk/id/eprint/108359

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