WORKBOATS AND TUGS
Hybrid, Emission-Reducing, Environmentally Friendly:
Starnav Opts for Solutions From SCHOTTEL With a milestone project for South America, the Brazilian tug group Starnav is setting course for the goals of IMO 2030: Starnav has commissioned the Detroit shipyard in Itajaí, Brazil, to equip four newly built tugs with SCHOTTEL rudder propellers. One of the 32 meter long and 11.6 meter wide escort tugs will be equipped directly with the SYDRIVE-M technology patented by SCHOTTEL, the other three will be configured SYDRIVE-ready. As a mechanical hybrid solution without the costly complexity of conventional hybrid technology, SYDRIVE-M ensures lower maintenance costs and lower fuel consumption.
SCHOTTEL SYDRIVE-M will enable Starnav to offer more profitable and low-emission towing services in Brazilian ports. In addition, the group of companies contributes to achieving the goals of 2030 and 2050 initiated by the International Maritime Organization IMO.
Carlos Eduardo Pereira, CEO of Starnav Serviços Marítimos: “With the use of the SCHOTTEL hybrid solution, we are taking the initiative for ever cleaner ship operations. It's especially important to start now: the ships that are being built today will be in service for decades. Our main focus has always been on the high reliability of the equipment, but above all on the safety and protection of the environment. With 34 ships with SCHOTTEL drives in our fleet, we will continue to expand our activities and benefit from a strong partner with extensive know-how in Brazil.”
Bollard Pull of More Than 80 Tons The main drive of every ASD tug consists of two diesel-powered SCHOTTEL rudder propellers type SRP 490 (2,525 kW each) with fixed propellers with a diameter of 2.8 meters. With this propulsion configuration, they will achieve more than 80 tons of bollard pull and a top speed of 12.5 knots.
The first of the four tugs is scheduled to go into operation in 2022.
Lower Maintenance Costs, Lower Fuel Consumption SCHOTTEL SYDRIVE-M combines a port and a starboard azimuth drive in one ship, so that both drives can be driven jointly by just one main engine. This leads to a reduction in engine operating hours, which contributes to lower maintenance costs as well as lower fuel consumption and emissions.
The system does not require any additional electronic components,
which offers many advantages, as the three main operating modes show: partial load operation or free travel mode, full load operation and fire extinguishing mode (FiFi mode).
New and More Energy-Efficient Solutions The International Maritime Organization (IMO) strategy to reduce greenhouse gases (GHG) calls on all those involved in the maritime industry to find, develop and integrate new and more energy-efficient solutions in order to meet the goals of reducing GHGs Emissions to be achieved by 2030 and 2050. A number of toolkits, such as the Ship Emissions Toolkit and the Port Emissions Toolkit, provide practical guidance on determining emissions from ships and identifying emission reduction opportunities for the fleet.
By investing in innovative hybrid concepts and operating in a more environmentally friendly way, ship owners like Starnav are helping to meet these goals.
September 2021
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