. 24/7 Space News .
Fuel cells reduce ship emissions
by Staff Writers
Berlin, Germany (SPX) May 19, 2021

DLR is working with partners from research and industry to develop a climate-friendly energy supply system for ships to cut carbon dioxide and soot emissions.

Working with partners from industry and research, the German Aerospace Center is developing a climate-friendly energy supply system for ships. It is based on a highly efficient fuel cell system designed to generate heat and power on board. A notable benefit of the cells is that they work with many different fuels. To test the technology, the EU's NAUTILUS (Nautical Integrated Hybrid Energy System for Long-haul Cruise Ships) research project, led by the DLR Institute of Engineering Thermodynamics, is producing a demonstrator suitable for ships.

Globally, shipping accounts for a significant proportion of greenhouse gas emissions. It also produces sulphur dioxide, nitrogen oxide and soot particles. The International Maritime Organization (IMO) has therefore cut the limits for ship emissions. Its aim is a reduction in the carbon dioxide emission limit of 40 percent by 2030 and 70 percent by 2050 compared with 2008 levels.

Cruise ships are particularly affected by this. Compared with merchant ships, they spend longer in port during stopovers with shore excursions. As a result, they pollute the surrounding area with soot and exhaust fumes. In addition, the emission standards applying in ports are often stricter than those at sea.

Marine diesel - gas engine - fuel cell
The novel fuel cells work with hydrogen, natural gas, methanol or synthetic fuels. This makes the gradual conversion of existing energy systems possible.

Initially, heavy marine diesel oil will be swapped for gas. This will stop the production of nearly all soot particles. "The new fuel cell system and original generator sets with a gas engine will then be in operation at the same time during a transition period," explains Syed Asif Ansar of the DLR Institute of Engineering Thermodynamics, coordinator of the NAUTILUS consortium. "The fuel cell system can use the same fuel as the gas engines. As a result, numerous components of existing energy systems can still be used. In many cases this is more cost-effective, and conversion is technically easier."

The fuel cell concept can also be transferred to merchant ships and stationary industry. The NAUTILUS project is one more step along the road to emission-free shipping.

Less soot and carbon dioxide
The NAUTILUS demonstrator is designed to produce 90 kilowatts of electrical power. In comparison with conventional ship generator sets, the demonstrator will emit around 50 percent less carbon dioxide and up to 99 percent less soot.

In addition to the fuel cells, batteries will be used to provide a buffer to cope with peak loads. The DLR Institute of Engineering Thermodynamics is developing new concepts for coupling power circuits to one another for this purpose. The aim is to make the system as efficient as possible in terms of energy and space. "We can achieve electrical efficiencies of 65 percent with the high-performance fuel-flexible cells. The waste heat produced in this process will be fed back elsewhere in the energy system. In this way we can utilise more than 85 percent of the energy input," Ansar stresses.

Real-world and digital test operation
The researchers want to test the NAUTILUS demonstrator under realistic conditions. To this end they will be simulating voyages, manoeuvres, load variations and the 'hotel operation' of a cruise ship. "We will be validating the generator system as if it were actually integrated on board a ship. It will cover the entire process chain, from fuel tank to power consumer. This will also allow us to evaluate the supply system in terms of maritime safety, future regulations and expected service life," says Ansar.

To do this, the NAUTILUS team is creating a 'digital twin' of the generator system. This computational model should make it possible to simulate fully integrated ship energy systems with outputs between five and 60 megawatts. This corresponds to the output requirement of ships with 1000 to 5000 passengers. Systems already installed can be evaluated and structured more efficiently with computer simulations of this kind.

The next step after the initial trial runs of the NAUTILUS demonstrator is already planned. In a second project phase, the DLR Institute of Engineering Thermodynamics and the DLR Institute of Maritime Energy Systems will test the NAUTILUS system together under real-world conditions.

Related Links
Institute of Engineering Thermodynamics at DLR
Powering The World in the 21st Century at Energy-Daily.com

Thanks for being there;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Monthly Supporter
$5+ Billed Monthly

paypal only
SpaceDaily Contributor
$5 Billed Once

credit card or paypal

Electric vehicle batteries: The older they get, the safer they are
Graz, Austria (SPX) May 04, 2021
As part of the project "SafeBattery", a team from Graz University of Technology (TU Graz) has been investigating the behaviour of lithium-based batteries in electric cars under crash loads for the past four years. "The performance of new battery cells is largely known, so we dealt with the entire life cycle," explains project manager Christian Ellersdorfer at the Institute of Vehicle Safety. Together with industry partners such as AVL, Audi and Daimler, research was conducted into scenarios that a ... read more

Comment using your Disqus, Facebook, Google or Twitter login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Scientists find new use for valve invented by Nikola Tesla 100 years ago

NASA, Axiom Agree to First Private Astronaut Mission on Space Station

Want to become a space tourist

In the emptiness of space, Voyager I detects plasma 'hum'

Flying at up to Mach 16 could become reality with UCF's developing propulsion system

SpaceX to launch lunar mission paid with cryptocurrency Dogecoin

Protests over SpaceX contract put timetable for lunar return in limbo

Touchdown! SpaceX successfully lands Starship rocket

Perseverance rover captures sound of Ingenuity flying on Mars

Volcanoes on Mars could be active, raise possibility of recent habitable conditions

Why Ingenuity's fifth flight will be different

NASA's Ingenuity Helicopter to begin new demonstration phase

China wants to send spacecraft to edge of solar system to mark 100th year of PRC

China's space station takes shared future concept to space

China launches space station core module Tianhe

Core capsule launched into orbit

Xplore opens 22,000 sq ft satellite manufacturing facility to advance satellite production

Spacecraft magnetic valve used to fill drinks

SpaceX launches 60 Starlink satellites from Florida

Egos clash in Bezos and Musk space race

EU, US move to end steel row and point to China

Large Chinese rocket segment disintegrates over Indian Ocean

3D printing could be used in search for black holes

NASA's On-orbit Servicing, Assembly, and Manufacturing 1 Mission Ready for Spacecraft Build

Coldplay beam new song into space in chat with French astronaut

How planets form controls elements essential for life

First ever discovery of methanol in a warm planet-forming disk

UBCO researcher uses geology to help astronomers find habitable planets

Juice arrives at ESA's technical heart

New Horizons reaches a rare space milestone

New research reveals secret to Jupiter's curious aurora activity

NASA's Europa Clipper builds hardware, moves toward assembly

The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us.