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Two breweries have reduced their energy usage by designing and installing naturally cooled distribution centres using super-fast automated sequential roller doors from Sara Loading Bay Specialists.

The roller doors are intended to help both Otter Breweries and Adnams to maintain temperatures using as little energy as possible.

The two breweries have developed naturally cooled distribution centres for storage that use low-carbon insulation and natural cooling to eliminate the need for electrical cooling systems, with the intention of cutting energy consumption.

To maintain the controlled environment in the distribution centre, the breweries needed to install suitable protective door systems.

Sara satisfied the requirement by providing fast-opening doors that ensure the storage area has no direct exposure to the outside environment, while allowing free-flowing access for vehicles and personnel.

The distribution centres use a living sedum roof and low-carbon walls to provide low-carbon insulation.

The correct room temperature is maintained without the use of any electric chillers, using the natural temperature of the ground.

The ability to maintain and control the temperature enables the distribution centres to run without the chillers, meaning that it is necessary to use door systems that do not expose them to the outside environment.

Ed Wilks, operations manager for Sara, said: ‘We were aware that Adnams wanted to make sure that its impact on society is a positive one.

‘One of the most important ways of achieving this is to ensure that it does all it can to reduce its carbon footprint.

‘The distribution centre was designed and developed to eliminate the need for electric chillers; this meant that it needed to be protected from outside temperatures,’ he added.

According to Wilks, Sara developed an automated door system for Adnams that preserves the storage area’s insulation.

Inefficient door systems are damaging to controlled environments, especially when there are no air-conditioning systems in place.

As employees are often moving in and out of the cellars, it was important that the door system could maintain the insulation while in frequent use.

Sara was able to able to provide a bespoke solution using low-energy, high-speed doors.

The company worked with both of the brewers to design and install bespoke solutions tailored to the needs of their applications.

Sara designed a two-door sequential locking system that ensures one of the doors is always closed.

Two doors from the company’s Sprint range of high-speed loading bay doors were used for the application.

David McCaig, managing director of Otter Brewery, said that Sara sales engineer Paul Rudge developed a door system that matched all of the brewery’s requirements.

‘The system does a fantastic job of maintaining the cellar’s insulation, meaning that the savings they have helped to create will pay for the doors within a relatively short space of time,’ he added.

The Sprint range of doors is available for both internal and external applications.

External doors utilise a galvanised steel frame and a curtain of individual aluminium profiles, which can be replaced if damaged.

The doors require little maintenance even when in constant use, utilising the company’s Disc Drive mechanism, which limits noise and wear vibration.

The internal sprint doors have a transparent safety curtain that provides visibility for safety in high-traffic areas.

Curtain tensioning provides smooth and steady movement with an inline motor available for applications where side clearance is restricted.

MCC vector control is available on all Sprint doors as an option, allowing users to programme a dual-height opening function and enabling the doors to reach operating speeds of 2.5m/sec.

The Sprint range can be supplied with Sara’s non-contact safety beam, which continuously scans ahead of the door curtain to act as a failsafe security system.

If the beam is broken, the door stops, thus preventing the risk of damaging equipment or of injuring personnel standing beneath the closing door.

This safety system does not need an accompanying spiral cable; these stretch over time and become vulnerable to snagging.

Sara/Loading Bay Specialists

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