Controlled chambers switch stream to save £60,000 in energy costs
15 Jan 2000
Carlsberg-Tetley has upgraded its brewery in Leeds, West Yorkshire, to guarantee the quality of air being used on the site. A domnick hunter Maxi PNEUDRI DHE 510 DS was installed to ensure the air used in the plant was constantly clean and dry to reduce the risk of corroding vital process equipment.
PNEUDRI compressed air dryers use modular twin chambers of desiccant. The desiccant chambers dry the compressed air until it reaches saturation. The compressed air is then diverted into the other chamber and the saturated chamber is dried ready for use again.
Conventional twin tower dryers operate on the same principle, alternating between chambers at regular time intervals. However, demand for compressed air is not regular and the timer system of switching chambers is highly inefficient as energy is wasted drying a chamber which has not been fully saturated.
The PNEUDRI senses when a chamber is saturated and only switches the air stream when necessary. Carlsberg-Tetley claims the energy efficient system saves more than £60,000 a year.
