Data accompanying Chapter 5 of the thesis: Enabling ship changeability; a lifecycle approach to the maritime energy transition

This collection contains datasets created as part of the doctoral thesis "Enabling ship changeability; a lifecycle approach to the maritime energy transition by Jesper Jan Zwaginga, M. Sc in Delft University of Technology, 2020-2025.<br>It is being made public both as supplementary data for the thesis and for other researchers to use in their own work.<br>The data is part of the project READINESS, project number TWM.BL.019.002, of the research programme“Topsector Water &amp; Maritime: the Blue route,” which is partly financed by the Dutch Research Council (NWO).<br>The data included in the zip repository has the form of PY, .XLSX and .TXT. A detailed description follows next.<br><strong>Python files</strong>1. <strong>GED_system_architecture_functions.py: </strong>graph edit distance (GED) functions that are used by the code.py version to enable qualitative graph comparison.2. <strong>GED_system_architecture_code.py: </strong>GED code to visualize graph comparison<strong>3. Graph_based_library: </strong>contains code with which the network algorithm creates connections between systems. The python file also includes a small system library example, to enable recreation of graphs as described in chapter 5 of the dissertation.<strong>Input and output data</strong><strong>1. System_attributes.xlsx: </strong>Includes all system and connection data necessary to build graphs described in dissertation chapter 5.<strong>2. Sweeped_graph_de_wbal</strong>: txt file output from the graph_based_library code that can be used to recreate diesel generator (including operational systems such as ballast-tanks) figures from dissertation chapter 5, can be visualized using GED_system_architecture_code.py<strong>3. Sweeped_graph_meoh_wbal</strong>: txt file output from the graph_based_library code that can be used to recreate methanol dual fuel generator (including operational systems such as ballast-tanks) figures from dissertation chapter 5, can be visualized using GED_system_architecture_code.py<strong>4. Sweeped_graph_meoh_ratio</strong>: txt file output from the graph_based_library code that can be used to recreate methanol dual fuel generator figures (including alternative methanol-diesel mix ratio) from dissertation chapter 5, can be visualized using GED_system_architecture_code.py