May 22, 2007 -- In support of current efforts to reduce carbon emissions, FP Temperature Sensors, a trademark of AMETEK Calibration Instruments, has manufactured and supplied 6 m long versions of its AMK thermocouple assembly sensors for use in the production of "green" electricity and heat by burning biomass. The sensors were commissioned by Energi Randers Production, suppliers of electricity heating and water in Randers, Denmark, following close co-operation with AMETEK Calibration Instruments.
The sensors are supplied with a steel protective tube and an interchangeable ceramic inner tube and are used to monitor temperatures of around 1200° - 1300° C in two boilers as part of a new flux firing system. They conform to standard class 2 according to IEC 584 thermocouple type N. The sensor is mounted through the top of the furnace to a depth of approximately 700 mm.
The biomass used comprises olive cores, and meat and bone meal. Temperature control is critical in the process since the biomass must be ignited so that it burns at once to avoid possible gas explosions. In addition, a high temperature is required to ensure that any spores or bacteria from the fuel mass are destroyed and that any dioxin resulting from the process is completely burned.
The fuel enters the two boilers on a conveyor belt to ensure continuous combustion. More than 100 tons of biomass is burned per 24-hours. Each boiler is equipped with two of the special sensors, and a spare was supplied for use when a sensor is re-calibrated. The sensors were factory calibrated and will require only annual re-calibration. In view of the length of the sensors, a unique system has been devised to allow the sensors to be exchanged for recalibration while the boiler continues o operate.
The FP Industrial Temperature Sensor product line includes a comprehensive range of thermocouple assemblies and resistance thermometers, measuring inserts, thermocouples (of precious as well as base material), thermocouple wire, extension wire, temperature transmitters and portable digital thermometers.
Further Enquiries UK: Ian McPhie, AMETEK Calibration Instruments Ltd, 12 Barnes Wallis Road, Segensworth East, Fareham, Hants PO15 5TT UK.
Tel. +44 (0)1489 486404 Fax. +44 (0)1489 885118
http://www.jofra.com E-mail jofra@ametek.co.uk
Further Enquiries Europe: AMETEK Calibration Instruments, Gydevang 32-34, 3450 Allerød - Denmark,
Tel: +45 4816 8000 Fax: +45 4816 8080
http://www.jofra.com E-mail ametek@ametek.dk
Press Enquiries: Denis Bulgin, In Press Public Relations Ltd. PO Box 24, Royston, Herts, SG8 6TT UK.
Tel: +44 (0) 1763 262621, Fax +44 (0) 1488 73773.
http://www.inpress.co.uk E-mail: denis@inpress.co.uk
