A breath of fresh air in waste management
JS Air Curtains
The Industrial AB Series air curtains from Airbloc have been used at three locations, the existing Levenseat Waste Management facility, Lanarkshire and two new build waste recycling facilities for Waste 2 Resources on behalf of Global Renewables in Lancashire – massive schemes that are set to revolutionise waste recycling in the UK.
Olympic Heat
JS Air Curtains has supplied eight Rund air curtains for the new concourse entrances at the Olympic rail links at Stratford and Ebbsfleet International stations. Two entrances at both stations had identical air curtain systems installed, each consisting of two 1.5m Rund air curtains joined by a 2.7m non-functioning dummy section.
The air curtain systems were installed by M&E contractors, Eurolec Services Ltd, and specified by Morgan Sindall Professional Services.
The air curtain installations are part of the construction projects taking place at Stratford and Ebbsfleet stations in preparation for the 2012 Olympics. Up to 25,000 spectators every hour will be shuttled on the new high speed “Olympic Javelin” trains between central London and Stratford.
The pairs of air curtains at each doorway were fitted with a central dummy section, joining them in the middle and giving the impression of a single 5.7m long unit, complementing the overall aesthetics of the entrance. White RAL9016 was chosen for the project to match the colour of the doorway but the Rund is available in any RAL colour.
The Rund air curtains at Stratford and Ebbsfleet stations will help prevent cold air from entering with the doors in constant use. They incorporate 22.5kW electric heaters but hot water heating and air only models are also available. The Rund air curtain is offered in any single length from 1 to 3m with multiple units accommodating wider doorways. Fan powers vary from 1,875 to 6,475m³, making the air curtain ideal for sealing doorways up to 3.5m high. The Rund has many mounting options. It can be held horizontally on brackets, as it was on this project, suspended on rods, mounted on post-type arms either from the floor, ceiling or wall, or stood vertically on the floor.
Signage can also be accommodated on the air curtain, such as the Exit signs used at Stratford and Ebbsfleet. Email:
sales@jsaircurtains.com www.jsaircurtains.com
Air curtains are widely used in shops, restaurants and public and commercial buildings as a means of preventing heat loss. However, they also have a key role in terms of preventing the transmission of odours.
This is because air curtains provide environmental separation between external and internal areas, ensuring that odours are contained within buildings, where they can be processed by sophisticated extraction and filtration systems. If there is no air curtain then convection currents could allow odours to escape to parts of the buildings with reduced protection and break-out to the environment.
At Levenseat Waste Management, which recycles compostable materials and aggregates alongside household waste, six ABX525 Ambient air curtains from the Industrial AB Series were ordered. These are especially suited to high doors as they offer even more power than conventional AB Series units. They were installed at the vehicle entrances of the facility to ensure
energy efficiency and no
escape of odours.
The two Lancashire Waste
facilities used a wide range of Industrial AB Series air curtains. Part of a £2 billion Private Finance Initiative between joint venture partners AMEC and Catylist Lend Lease and Lancashire County Council and Blackpool Council and, Global Renewables two mechanical biological treatment plants will manage Lancashire’s 600,000 tonnes of waste a year sustainably. The scheme will utilise cutting edge technology to divert more than 75% of Lancashire’s waste from landfill.
Covering all of the high vehicle door openings, the adaptability of the Airbloc system was crucial to the project. One of the external entrances to the building was 13m high, to accommodate a lifting crane. As Airbloc modules can be mounted vertically up the length of doors, they were able to provide environmental separation even to an opening as high as this. With Airbloc units on each side of the door, it could be left open throughout the day to allow the lifting crane to enter and exit with its cargo of waste. Email:
marketing@airbloc.co.uk www.airbloc.co.uk
Clivet gets Smart
Clivet is setting out a challenge to traditional split/multisplit and hydronic air- conditioning systems for smaller retail premises, showrooms, restaurants and production plants where optimum temperature, humidity, ventilation and air quality freshness is essential. SMARTpack is a new high-efficiency, air-air heat pump air-conditioning package designed to provide make-up air and to recover energy. Unlike split and multisplit direct expansion systems, the Clivet SMARTpack does not require a separate system for treating primary air, nor are there any refrigerant pipes to cross the rooms being served. Furthermore, SMARTpack is not as complex or as costly to install as hydronic systems.
Cooling, de-humidification, air purification and renewal, along with heating are the functions that are managed automatically by the SMARTpack. This compact unit is simple to install and operate as all the usual system components are contained within the unit and pre-tested. All that the installer has to do is connect the air distribution channels and power up the unit. Being
Building & Facilities Management – December 2010/January 2011
compact and self- contained, SMARTpack is quick and easy to position on a roof or at ground level. SMARTpack benefits
from the use of digital scroll compressor technology, which changes the loaded and unloaded state of the compressor, making it possible to obtain a capacity modulation from 10 -100%. This option is a major benefit, which together with electronically controlled fans and low pressure drop filters, is a contributing factor to SMARTpack’s energy saving credentials. Clivet reports that SMARTpack is equipped to provide automatic control of the ambient temperature and humidity. By comparing indoor with outdoor conditions, it selects the operating mode (heating or cooling), decides which and how many resources to activate and manages the renewal air and the free-cooling capability in order to maintain comfortable conditions.
www.clivet.com
Email:
a.mayes@
clivet-uk.co.uk energy solutions 25
HVRAC
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