Session: 14-01-01 - New Concepts & Retrofit Solutions

Submission Number: 176835

A Comprehensive Energy System Retrofit Workflow Applied to a Bulk Carrier 

The transition towards sustainable maritime operation
presents a multifaceted challenge, as technological, economic,
environmental and safety-related factors are deeply intercon-
nected. This paper presents an integrated simulation workflow
for retrofitting alternative energy systems on existing ships.
The workflow comprises individual research fields like an
in-depth analysis of AIS Data, Energy system analysis including
a comparison of its total cost of ownership (TCO), wind-assisted
ship propulsion (WASP), as well as a naval architecture eval-
uation, which elaborates a feasible integration. The applica-
tion of the workflow is presented in a preliminary case study to
showcase its capabilities. The integrated AIS analysis selects a
35.000 DWT bulk carrier as the test case. In the energy sys-
tem analysis, the bulk carrier is equipped with a methanol two
stroke combustion engine and WASP systems. Accordingly, a
preliminary design of the new energy system is developed and
additional required safety systems are identified. The resulting
energy system is integrated into the vessel and evaluated regard-
ing ship safety and hydrostatics. The TCO is evaluated based on
(i) the AIS-analysis and (ii) the preliminary ship design. Both are
benchmarked against the baseline TCO with the regulatory costs
that the vessel would be subject to without a retrofit. The case
study reveals the impacts of energy system retrofits on ship design
and demonstrates how a combined approach enables a compre-
hensive decision support in sustainable maritime retrofitting

Presenting Author: Simon Haberl German Aerospace Center

Presenting Author Biography: Bachelors and Masters in naval architecture at Technical University of Hamburg, Research assistant at TU Hamburg and German Aerospace Center

Authors:

Simon Haberl German Aerospace Center
Florian Schmid German Aerospace Center
Travis Teske German Aerospace Center
Shaghayegh Kazemi Esfeh German Aerospace Center
Thorben Schwedt German Aerospace Center
Andres Felipe Percy Toscano German Aerospace Center
Annika Fitz German Aerospace Center
Joost Hobbie German Aerospace Center
Ishan Sontakke German Aerospace Center
Maria Elizondo Guerrero German Aerospace Center
Avadhut Pravin Amrutkar German Aerospace Center
Dheeraj Gosala German Aerospace Center
Bright Ebikemefa Okpeke German Aerospace Center
Cherif Ait Aider German Aerospace Center
Lars Schmitz German Aerospace Center
Simon Prattke German Aerospace Center
Johannes Beiker German Aerospace Center
Frank Dingfeld German Aerospace Center
Sören Ehlers German Aerospace Center
Théo Tardif Computed Wing Sail