Product category:
Temperature measurement: Conventional
News Release from: ABB Automation Tech (Instrumentation + Automation) | Subject: Statoil Snohvit RTDs
Edited by the Processingtalk Editorial
Team on 20 February 2008
Temperature sensors for the Statoil LNG
plant
Over 1,000 ABB RTDs (Resistant Thermometer Devices) are to be used in the world's most northerly liquefied natural gas facility, the Statoil Snohvit project
The Statoil Snohvit project is the first offshore development in the Barents Sea, and the RTDs will be used for measurement of process temperatures, loading and offloading monitoring, spill detection and environmental protection Built at the ABB plant in Workington in the North of the UK, the full assembly thermometers feature solid drilled flanged thermowells and transmitters with HART communications and display
This article was originally published on Processingtalk on 17 Jul 2008 at 8.00am (UK)
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The customer required an all HART site to enable enhanced communication with the measuring units for tasks such as range changing.
The thermometers incorporate stainless steel heads, providing an uncoated corrosion-resistant enclosure, with a window for the display.
A special feature of the order also included the supply of 25 metre long probes as part of a system designed to prevent freezing of bedrock under the four main storage tanks at the Melkoya LNG facility.
Two of the tanks are used to store liquefied natural gas, which is cooled with refrigerated gases.
The probes will monitor the temperature of the bedrock under the tanks to ensure that its temperature remains above 0degC.
This is necessary to prevent the cold temperatures in the tanks penetrating and fracturing the bedrock, which could in turn compromise the tank foundations.
The equipment also features surface mounted assemblies which are in intimate contact with the pipe outer wall.
This saves installation costs as there is no need to penetrate the pipeline to mount the thermometer.
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