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Chilled Unit
Energy Saver (CUES)
Refrigeration units work in a
series of cycles – starting and stopping to maintain the
required temperature. They usually monitor circulating air
temperature in order to decide when to switch on and off –
so we call them air cycles. However, circulating air
temperature tends to rise quickly, far more quickly than
food temperature and, as a result, refrigeration works
harder than necessary to maintain stored products at the
right temperature.
This in turn leads to excessive energy consumption and undue
wear and tear on the equipment. This is where CUES kicks in.
CUES consists of a food simulant contained in a
double-skinned enclosure. This food simulant mimics the
temperature of food at 10mm below the surface. Due to its
specific design, CUES ensures that refrigeration keeps food
at the correct temperature. When fitted to the thermostat
sensor, which controls the compressor, CUES significantly
reduces the frequency of the refrigeration cycles as they
are now based on food temperature rather than fluctuating
air temperature. Air cycles typically produce a minimum of
12 cycles/hour and, in some open display cases, 20
cycles/hour. By using CUES as a cycle control mechanism,
refrigerated cycles can be reduced by as much as 80%
Benefit of CUES:
● CUES can achieve savings of
up to 30% resulting in a
short payback.
● It reduces wear and tear thus extending the life of
the equipment.
● Its application results in fewer breakdowns, sensor
failures and reduces noise pollution.
● It maintains food at a safer temperature resulting in
less product spoilage.
● It is a one-time retro-fit product requiring no further
maintenance once installed.
Source: Enigin
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