Report #001 - 02 November 2021

INTRODUCTION

Please find within this space, your secure Web-viewer, the updated status of the 2021 refit to M/Y ARIONAS

GENERAL UPDATE

Follow on Kick-Start Meeting

AMICO & Co Shipyard

Meeting started off with an update from the shipyard designated company FIDEMA Architect Daniele Fricano providing the Engine Room design layout for the new drive motor locations and concerns.

Update included drive motor location being moved forward by 2 frames to frame 31 due to the dimensions given of the new Thrust Bearings. This is due to the present frame spacing for support of the new mounting bracket for the Thrust Bearing.

E-Motion said they think the dimensions of the new bearing could possibly be reduced. They will review and provide confirmed dimensions to the shipyard for revised layout drawings later this week.

Confirmed E-Motion to supply the Thrust bearings as this will ensure the correct bearing supplied to complement their drive and gearbox system.

Group discussions on the presented solutions for the Generator mounting locations and the Battery storage locations. Presently only 2 options given. One option would mean the relocation of various ancillary house systems to accommodate a generator unit outboard of the drive motors. Second option also has the Stbd side ancillary systems moved for the allocation of the Urea tank.

Possible other solutions are needed whereby the ancillary equipment is not moved due to increasing costs. Possible options to be investigated would be the location of the generator units being placed above the drive motors but leaving the aft section free above the gearbox for service and removal of components as required.

Another option is to investigate the possibility to move the drive assembly aft the required frames to support the new Thrust Bearing. This would mean shortening of the present primary intermediate shaft where it couples to the gearbox.

Discussions continued about the elements of equipment that are presently in the Engine Room that are not required for the new systems, and that these locations may provide new locations for the movement of ancillary or generator equipment.

Amico shipyard need to provide the feasibility study that they performed so that we can have a clearer picture of what may therefore be removed as redundant.

Location of the Urea tank posed a problem as it took space away from ancillary equipment. I would recommend investigating the option to incorporate the lower Engine room bilges as tankage for the Urea which will require a tank capacity of approximately 2 cubic meters along with Clean and Dirty lube oil tanks.

The removal of the present Clean Lube Oil tank would allow for better use of space for the storage of the batteries. New lube oil and dirty oil tanks located in the presently free bilge space would be a good option with a capacity of 1 cubic meter each would allow for approx. 16 oil changes at recommended service interval. (Not counting for oil top up during operational)

The Compressed air system onboard consists of 2 systems. Start air for the main Engines, and service air for ships horn, Sprinkler mist system, and general service air for the vessel. The Start air compressor and large air receiver will be removed as no longer required for the new propulsion system. This will create a reasonable area of free space for relocation of new equipment, however the service air will need to be rearranged around the Refrigeration compressors to gain full use of the air system equipment.

A further discussion onboard the vessel with Daniele from Fidema proved useful for options with the new ER layout. Daniele will review and send the options through in the coming week.

RINA requires copies of the present BV Class certificates for review with regards to the cross over certification.

They asked for the E-Motion documentation as well which Michele from E-Motion confirmed has already been sent or uploaded to the RINA portal.

New jacuzzi as per owner’s request was mentioned to RINA who commented that they will need to review the present deck support scantlings for the load bearing weight of the full jacuzzi. We also discussed the requirements for the emergency drainage which he confirmed as being full to empty in 3 minutes. We asked if this must be to waterline or to deck and he said that to deck scuppers was OK. We have deck scuppers and also larger freeing port on the fore deck so this should be no problem but must be confirmed with the design team.

Further updates from 2nd onboard viewing at shipyard.

Regarding the possibility of Asbestos being present. This has been confirmed that there is a section of the ER ventilation in the upper exhaust casing area. A further visit is scheduled on Monday 29th November for inspection of suspected pipe work insulation in the ER. This pipework is for the Hot water circuit.

Engine room layout reviewed onboard with Daniele Fricano from FIDEMA who are the engaged naval architects from the shipyard.

They were onboard for measurements of the framework scantling to better provide new drawings for the new propulsion system installation.

We discussed options for lube and Urea tanks in the bilge and reviewed the compressed air equipment and their requirements. A new ER layout option will be provided.

We briefly discussed the jacuzzi on the Upper deck and that the new supports may need to go all the way down to the main hull frames due to the location of the jacuzzi above an open stairwell.