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Sustainability 2016, 8(6), 587; doi:10.3390/su8060587

Timber Chips as the Insulation Material for Energy Saving in Prefabricated Offices

1
School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China
2
School of Human Settlement and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China
3
Department of Architecture, The University of Kitakyushu, Kitakyushu 808-0135, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Marc A. Rosen
Received: 9 May 2016 / Revised: 3 June 2016 / Accepted: 12 June 2016 / Published: 21 June 2016
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Abstract

This research demonstrates the feasibility of a roof insulation method for prefabricated offices that uses vinyl packed timber chips to reduce air conditioning loads (hereinafter referred to as AC loads) and which also improves indoor thermal comfort. The advantages of the new roof insulation method were revealed through comparing the impacts of four roof types on prefabricated offices. The AC load and indoor thermal comfort (surface temperature and air temperature) were evaluated. The disposal of scrap timber discarded from building construction projects is costing money, and is also a waste of natural resources. The assessment of a new roof insulation method with timber chips demonstrates the advanced usage of timber chips, reducing the environmental load in the building construction process. On the other hand, since prefabricated offices have lower thermal storage capacities and are less airtight than RC (reinforced concrete) or S (steel) structured buildings, the AC load consumption and indoor thermal comfort exacerbation in prefabricated offices is more serious. Especially in summer, a large amount of solar energy absorption from the roof raises the indoor air temperature and significantly increases the cooling load. This research contributes to the environmental design for prefabricated offices, and develops a method for the reuse of wood chips. View Full-Text
Keywords: environmental modeling; prefabricated office; AC load; thermal comfort; roof insulation environmental modeling; prefabricated office; AC load; thermal comfort; roof insulation
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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Wang, Y.; Fukuda, H. Timber Chips as the Insulation Material for Energy Saving in Prefabricated Offices. Sustainability 2016, 8, 587.

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