International News
DEFRA UK
As part of a UK Department of Food and Rural Affairs
Programme identifying reductions in energy inputs to the
food industry, a trial was undertaken to assess the impact
of applying low cost maintenance measures to commercial
fridges at the University of Bristol Langfood Canteen. The
canteen provides 200 to 300 meals per day. One large upright
fridge consumed 40% of the canteens cooling load. Inspection
of the fridge showed it had a dirty condenser which when
cleaned delivered an 8% energy efficiency saving. The fridge
was also found to have too low a temperature set point
which was raised from -21ºC to -16ºC, giving an additional
11% energy efficiency saving. Together these two measures
delivered a 19% energy reduction.
THE CARBON TRUST
The Carbon Trust, the UK Institute of Refrigeration and the
British Retail Association worked together to propose a set
of monitoring, maintenance and technology optimisation
measures that when applied could significantly reduce
emissions from retail refrigeration equipment. A basket of
monitoring, optimisation and maintenance measures could
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RACA Journal I May 2020
improve energy efficiency by 20 to 30% (e.g. training, cleaning
and maintenance, re-commissioning, set-point temperature,
store temperature). Additional technologies could significantly
increase these savings. RACA
REFERENCES
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Green Cooling Initiative
Carbon Trust
International Institute of Refrigeration
IEA
Clean Energy Ministerial
US Environmental Protection Agency
ASHRAE Journal
University of Bristol
The Carbon Trust put together this brief for K-CEP
with assistance from the International Institute of
Refrigeration and ASHRAE. We would welcome any
feedback on calculating the emissions reduction potential
of better optimisation, monitoring, and maintenance and
on better understanding the landscape of optimisation,
monitoring, and maintenance more generally.
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