In his paper, Mente Baak will focus on Kumera Norgear’s development of a 2-step mechanical transmission, KN 2E4D6C-2500, for main propulsion. The gear solution is specially designed for AHT, tugs and workboats, with significantly varying operational modes and three power take-offs. Due to the prototype character of the new innovation, FAT break-testing was defined for the new development.
–The aim for lower fuel consumption and reduced emissions of greenhouse gasses pushes the marine industry for new innovations. Utilizing our know-how from main propulsion technology and auxiliary PTO gear technology, Kumera Norgear has defined the Kumera Norgear Hybrid Concept, says Mente Baak.
For a tug, the low power modes are dominant. Significantly increased fuel efficiency and reduced emissions can be achieved by optimizing engine operations:
- By varying engine speed,
- By utilizing a 2-step main propulsion mechanical transmission,
- By split main propulsion mechanical transmission for DP and propulsion,
The Kumera Norgear Hybrid Concept in principle replaces one of the ship’s diesel prime motors, with a PTI/PTO electrical motor/generator.
The project is executed by Kumera Norgear, in close cooperation with Buksér og Berging, as partner in the development of the gear solution.
Electric & Hybrid Marine World Expo is an international event and a meeting point for shipping professionals, builders, engine manufacturers, shipowners and operators. If you are looking for clean, efficient electric and/or hybrid propulsion systems, this is the place to visit. The event has shown that it can drive both business relationships and key elements in the development of the industry.