Retail Building Thermal Efficiency Improvement through an Enhanced Re-Commissioning Framework

End-use energy efficiency is recognized as a predominant contributor to achieve UK carbon reduction target that is still far from reach today. The opportunity in retail buildings is apparent, especially supermarkets that account for 4 MtCO^sub 2e^ of total UK carbon footprint. This paper outlines an...

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Bibliographic Details
Published in:ASHRAE transactions 2015-01, Vol.121, p.1FF-1FF
Main Authors: Loh, Chang F, Acha, Salvador, Noye, Sarah, Shah, Nilay
Format: Article
Language:English
Subjects:
Buildings
Carbon dioxide
Case studies
Cold
Construction
Cost control
Design
Environmental impact
Green buildings
Heating
Monitoring
Process controls
Rectification
Stores
Supermarkets
Thermal efficiency
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Summary:End-use energy efficiency is recognized as a predominant contributor to achieve UK carbon reduction target that is still far from reach today. The opportunity in retail buildings is apparent, especially supermarkets that account for 4 MtCO^sub 2e^ of total UK carbon footprint. This paper outlines an enhanced re-commissioning (Re-Cx) framework that aims to mitigate supermarkets with poor energy performance, known as "cold-stores". The framework delivers a holistic approach with four critical strategies -- identification, monitoring, rectification and prevention in sustaining supermarket thermal efficiency throughout its operational lifecycle. This includes a comprehensive store characterization to identify "cold-store", key performance indicators (KPI) proposal for supermarket thermal efficiency monitoring, a cost-effective fault indication flowchart development for "cold-store" rectification, and the introduction of a novel Re-Cx and maintenance integration approach to prevent "cold-store" in a sustainable manner. A case study is carried out on 350 stores from one of the biggest UK supermarket chains. Seven "cold-stores" are identified from the comprehensive store benchmarking and characterization analysis. These results are also validated through the proposed KPIs.
ISSN:0001-2505