Retrofit Engineering Package for Alternative Fuel Powertrain Integration: Technical Developments and Safety Considerations

The key outcomes of the concept design of Task 2.1 from WP2 were the final selection of the demonstrator vessel and the installation locations and arrangements of the PTI/PTO machine and the hydrogen tanks and the alternative fuel Generator set. During the progress of the basic design, Task 4.1 led by HYDRUS the finalization of the technical specification of the PTI/PTO shaft machine has been concluded and a shop visit was arranged to define the final details. Moreover, apart from the provisional engineering performed for the retrofit of the existing shafting plan, aft of the vessel’s main engine, the maker of the 2-S Internal Combustion Engine has been contacted to verify the PTO power output of the specific ICE model installed onboard the vessel as well as contribute to the required torsional vibration calculations. Simultaneously, the design partners have proceeded with the concept process and instrumentation diagrams of the alternative fuel supply systems, as well as the respective process flow diagram (PFD) and the operation modes of the complete system. This basic design package has been shared with the Consortium’s Risk Assessment partners to work on the first safety workshop (HAZID), that will identify the main hazards of the concept engineering and revert with the actions needed to proceed to the basic process. The workshop took place mid-February, and the results will be shared two months before the conclusion of the task, so that the findings will be integrated into the design. In addition, the Consortium is in close contact with the registered vessel class, in order to define the necessary actions and documentation needed for review and approval.