The world’s first coil-wound heat exchanger made completely of stainless steel for the liquefaction of natural gas was delivered to the customer in Stavanger, Norway by Linde on time. This heat exchanger employs new temperature measuring technology using fibre optics (glass fibres).
LIOS Technology is cooperating with Linde, the leading engineering and industrial gases company, to install fibre optic distributed temperature sensing (DTS) system on the Coil-wound heat exchanger (CWHE), which is considered as the heart of the LNG plant. Its purpose is to liquefy the dried and cleaned natural gas (NG).
The idea was implemented by installing glass fibres with an overall length of approximately 2,400 metres in the Stavanger heat exchanger. "The most difficult thing was to avoid bending the glass fibres (d=0.2 mm) during the manufacturing of the heat exchanger and to avoid damaging them during the welding work which was carried out in the following months. The outstanding cooperation of everyone involved, in particular the care and quality awareness demonstrated by the Linde manufacturing employees during production, was the key to success of this project", said Gerhard Dägling, the Project Leader responsible for installing the optical fibres.