Munters On Track in Channel Tunnel

The channel tunnel rail link (CTRL) will be completed in 2 phases. The first phase was completed in September 2003 and the second is due for completion by 2007. It is a high speed line with trains travelling at speeds of up to 300 km/hr. The rail line also has a series of rooms which form part of the enclosures within the various sub-station buildings for this link. These rooms house various control panels which ensure everything runs smoothly within the rail link.

All metals are susceptible to corrosion and research has demonstrated that above 50% relative humidity (RH) the rate of oxidation of metals is greatly accelerated from 100 to 2,000 times greater than oxidation rates at lower RH levels. With an average humidity in the UK of 80%, this means metal products are particularly at risk.

Calmec Building Services were awarded the contract to provide a suitable environment and turned to humidity experts, Munters to control the relative humidity (RH) levels at a constant 50 – 55% RH. A total of 38 Munters desiccant dehumidification systems were installed throughout these rooms ensuring that the metal is kept in rust-free, pristine condition. As these control panels are now rust-free the rail link can run safely and efficiently.

The Munters process – how it works
All Munters’ sorption dehumidifiers are equipped with drying wheels, called rotors. The rotor contains small air ducts with a very large contact surface and is treated with a substance, such as silica gel, that easily absorbs moisture. The running and maintenance of the dehumidifier is very cost effective so capital and operating costs are low.

Munters Ltd
Blackstone Road
Huntingdon
Cambs
PE29 6EE

Tel: 01480 432243
Fax: 01480 413147

Email: info@munters.co.uk

Web: www.munters.co.uk