Intelligent maintenance for LNG vessels

All three vessels for the Waterways and Shipping Administration (WSV) will be equipped with Schottel MariHub, Schottel’s data acquisition and IoT gateway system. It records and analyses signals from sensors, machinery and other components which can then be evaluated by Schottel for the customer.

With the condition monitoring service ProCMS, MariHub allows for early detection of irregularities in the drive train. This predictive maintenance approach significantly increases the availability of the multi-purpose vessels: ProCMS can reduce maintenance costs and improve maintenance planning.

Schottel propulsion

Manoeuvrability, high bollard pull, increased availability combined with maximum propulsion efficiency are important for these more than 90m long vessels, which each have two Schottel RudderPropellers and one PumpJet.

Each vessel is driven by two Schottel RudderPropellers type SRP 750 (each 4,500 kW at 750 rpm), and each with an input power of up to 5,300kW. This allows the vessels to reach a speed of over 15 knots and a bollard pull of at least 145t.

A 2,990kW Schottel PumpJet type SPJ 520 further increases the manoeuvrability of the vessels and is also suitable for operation in shallower waters thanks to being installed flush with the hull. The SPJ is mounted elastically, which reduces noise and vibration levels onboard as well as underwater noise.

The three new vessels will operate in German coastal waters in the North Sea and Baltic Sea. The first is scheduled to enter service in 2023, the second a year later and the third in 2025.