SciTransfer
HEMOS · Project

Dynamic Heat Recovery System to Reduce Fuel Costs and Emissions for Large Ships

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Imagine a ship as a giant floating city that wastes a lot of heat from its engines. This project creates a smart digital map to track that heat and redirect it where it's actually needed. It's like installing a smart thermostat for an entire vessel to stop wasting energy.

By the numbers
14%
minimum increase in energy efficiency
2.5-3%
global CO2 emissions contribution from maritime industry
14%
EU maritime sector greenhouse gas emissions within transportation
The business problem

What needed solving

Ships waste massive amounts of heat energy, contributing to high fuel costs and significant CO2, NOx, and SOx emissions. Current heat management is often static and fails to adapt to changing weather and operational profiles.

The solution

What was built

A dynamic heat energy system simulation tool and a physical prototype installation on a cruise ship including waste heat recovery equipment.

Audience

Who needs this

Cruise ship ownersMarine engineering firmsShip designersMaritime decarbonization consultants
Business applications

Who can put this to work

Maritime Transport
enterprise
Target: Cruise Line Operator

If you are a cruise line operator dealing with high fuel costs and strict emission limits — this project developed a dynamic simulation tool and hardware retrofit that can increase energy efficiency by at least 14%. This reduces the amount of fuel needed to heat the ship and provide hot water.

Marine Engineering
mid-size
Target: Shipyard or Retrofit Specialist

If you are a shipyard dealing with the need to decarbonize existing fleets — this project developed a design methodology for integrating Organic Rankine Cycle (ORC) and heat pumps. This allows you to offer verified energy-saving upgrades to ship owners.

Green Tech
SME
Target: Industrial Heat Pump Manufacturer

If you are a manufacturer dealing with the challenge of adapting land-based heat recovery for sea use — this project developed a pilot validation on a large oceangoing ship. This provides real-world data on how high-temperature heat pumps perform in a maritime environment.

Frequently asked

Quick answers

How much does the system cost to implement?

Based on available project data, the specific cost of the system is not mentioned, although the EU provided a contribution of EUR 4,733,699 for the research and pilot.

Can this be scaled to all types of vessels?

The project specifically validated its approach using a large oceangoing cruise ship (Oasis class). Based on available project data, the methodology is designed for ships with significant heat energy balances.

Who owns the intellectual property or licenses?

Based on available project data, the IP details are not specified, but the project involves a consortium of 4 partners from Estonia, Italy, and Sweden.

Does this help with environmental regulations?

Yes, it targets the reduction of CO2, NOx, SOx, and particulate matter emissions to align with EU environmental strategies.

How long does it take to install?

Based on available project data, the project timeline runs from 2022 to 2025, including a phase for practical installation of a prototype on board.

Consortium

Who built it

The consortium is heavily industry-driven, with a 75% industry ratio (3 out of 4 partners). This suggests a strong focus on commercial viability and practical application rather than pure academic research. The presence of 2 SMEs indicates that the technology is being developed for agile market entry, supported by one university for the underlying simulation logic.

How to reach the team

Contact AS LTH-BAAS in Estonia

Next steps

Talk to the team behind this work.

Contact us to connect with the HEMOS consortium for licensing the dynamic simulation tool.

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