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Congrès International sur l’Analyse du Cycle de Vie Lille, Novembre 2011
A CARBON FOOTPRINT STUDY OF A REMANUFACTURED AND/OR REFURBISHED
RETAIL REFRIGERATED DISPLAY CABINET
D. Bibalou*, I. Chaer*, D. Andrews*, G. Maidment* and M. Longhurst **
* Faculty of Engineering and Built Environment, London South Bank University, 103 Borough Road,
London, SE1 0AA, UK; email: bibaloud@lsbu.ac.uk
** The Bond Group, Bond House, New Road, Sheerness, Kent, ME12 1BB
Introduction:
In 2010, the UK had 7970 supermarkets (IGD Research, 2010), which were using, in 2010, almost
800,000 refrigerated display cabinets (RDC). According to literature, RDCs account for 33% of
supermarkets’ energy bills; their lifespan is also shrinking partly as a consequence of the entry to the
market of inexpensive models. Therefore, assessing and managing the RDC’s life cycle will lead
to reductions in CO2 emissions. This document’s purpose is to quantify the emissions by looking at the
underused practices of refurbishing and remanufacturing RDCs (12.5% in the UK).
Method:
This carbon footprint study is based on life cycle thinking and uses the eco-design software: CES
selector/ Eco-audit. The data were collected as followed: Bill of materials (BOM) inspections, followed by
RDC disassembling for verification and finally energy audits of the manufacturing partner’s factories. The
RDC studied is a 1.2m plug-in multi-deck Chicago model manufactured by the Bond Group, with a total
mass of 360kg. Figure 1 is a rendered picture of the Chicago whereas figure 2 shows the same cabinet
being disassembled. Moreover, table 1 presents a partial BOM with alternative end-of-life (EoL) scenarios.
Figure 8 Chicago 1.2m rendered picture
Figure 9 The Chicago RDC being dismantled
Table 4 Partial BOM of the Chicago 1.2 with EoL scenarios
Materials
∑Mass (kg) Proportion (%) EoL scenario 1 EoL scenario 2
aluminium 4.59 1.27 Recycled Refurbishment
Aluminium, S332.1: LM26-TE, cast 12.4 3.44 Recycled Refurbishment
ASTM CA-6NM 13 3.61 Recycled Refurbishment
Copper 9.915 2.75 Recycled Refurbishment
Mdf 34.9 9.69 combust combust
Polyurethane 14.29 3.97 landfill landfill
R404A (refrigerant) 1.2 0.33 N/A N/A
Soda-lime 0080 (glass) 44 12.22 Recycled Refurbishment
Stainless steel grade 304 45.08 12.52 Recycled Refurbishment
Galvanised steel (zintec) 175.15 48.64 Recycled Refurbishment
Two EoL scenarios are presented, firstly, all metallic parts are recycled at EoL and a secondly, all
metallic components are either remanufactured or refurbished. Various simplifying assumptions were
made, for instance, secondary manufacturing processes (e.g. mechanical wear of components) were
ignored, and only the refrigerant’s embodied energy is considered (its global warming potential being
3922).
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