View all newsletters
Receive our newsletter - data, insights and analysis delivered to you
  1. News
December 14, 2017

MHI-MME and Wärtsilä to partner on new power solution for ships

Mitsubishi Heavy Industries Marine Machinery & Equipment (MHI-MME) has signed a memorandum of understanding (MoU) with Wärtsilä for the joint commercial marketing of a new power and propulsion solution for ships.

Mitsubishi Heavy Industries Marine Machinery & Equipment (MHI-MME) has signed a memorandum of understanding (MOU) with Wärtsilä for the joint commercial marketing of a new power and propulsion solution for ships.

The solution combines MHI-MME’s waste heat recovery and energy-saving power generation system (WHRS) with Wärtsilä’s operational control technology for shaft generator systems in order to offer more energy-efficient ship navigation and better Energy Efficiency Design Index (Eedi) for marine vessels.

"The solution combines MHI-MME’s waste heat recovery and energy-saving power generation system (WHRS) with Wärtsilä’s operational control technology for shaft generator systems."

A Wärtsilä power take-off / take-in (PTO / PTI) shaft generator system has also been integrated into the WHRS to improve the stability of the solution.

MHI-MME noted that the WHRS sometimes produces surplus electrical energy depending on the main engine load and the ship’s network, which can be used to drive the propeller shaft via the PTO / PTI generator.

The surplus energy can be directly applied to the propeller shaft at full load to help the vessel to move forward.

Furthermore, the WHRS system can be operated in parallel with a diesel generator set when operating with a low main engine load.

MHI-MME and Wärtsilä have already patented the new solution’s design, which connects the WHRS generator into the DC link circuit of the PTO / PTI shaft generator rather than directly into the mains power.

This function enables the WHRS to operate at a reduced speed to facilitate the greater operational efficiency of the turbine system at part load, as well as help to avoid the necessity of speed regulation valves that could cause throttle or bypass losses.

The companies further noted that a variety of MHI-MME energy-saving technologies were used to develop the new solution.

Related Companies

NEWSLETTER Sign up Tick the boxes of the newsletters you would like to receive. The top stories of the day delivered to you every weekday. A weekly roundup of the latest news and analysis, sent every Friday. The industry's most comprehensive news and information delivered every month.
I consent to GlobalData UK Limited collecting my details provided via this form in accordance with the Privacy Policy
SUBSCRIBED

THANK YOU

Thank you for subscribing to Ship Technology