Author: admip

Ship conversion of bulk carrier into transhipper

Ship conversion of bulk carrier into transhipper

The M/V Ore Fabrica was a single screw ore carrier converted into the world’s largest iron ore transhipper capable of discharging dry bulk cargoes (particularly iron ore) from vessels over 400.000 DWT with discharging daily rate over 90’000 t. 

The systems were designed for carrying out offshore crane operations with significant wave height values over 2m and wind speed over 30 knots.

Interprogetti Genova has been dealing with the design of new buildings and conversions of a wide range of ships such as self-discharging bulk carriers, floating transhipment terminals, livestock carriers, tugs, oil & chemical tankers, ro-ro cargo, ro-ro pax, passenger ships, yachts, barges, offshore units, etc. Click here and discover more design and engineering work.

Conversion of bulk carrier into transhipper

Conversion of bulk carrier into transhipper

M/V Hafeet (ex Niki) was a bulk carrier converted into unit for transhipping operation in the Persian Gulf. The major conversion works, which were carried out at Chengxi Shipyard in 2020, consisted in fitting cargo handling equipment on main deck and adding auxiliary diesel engines in the engine room. The cargo handling equipment included four heavy duty cranes, one barge loader and three conveyor belts of about 3000t/h capacity.

Additionally, accommodation spaces were enlarged and to enhance mooring operations, the ship was provided with a 1800 kW bow thruster. The ship has been certified for transhipping operation in open seas up to 2 m of significant wave height and this required dedicated seakeeping calculations and dynamic mooring analysis. The design work was based on the measurements obtained through an accurate 3D laser scan carried out all over the open decks and machinery room which allowed significant saving in terms of prefabrications and delivery times.

Interprogetti Genova has been dealing with the design of new builds and conversions of a wide range of ships such as self-discharging bulk carriers, floating transhipment terminals, livestock carriers, tugs, oil & chemical tankers, ro-ro cargo, ro-ro pax, passenger ships, yachts, barges, offshore units, etc. Click here and discover more design and engineering​ work.

 

Temporary improvement of the stability of floating module

Temporary improvement of the stability of floating module

Interprogetti was involved in a stability assessment related to the transportation of RGI floating module from Italy to Kuryk shipyard and then to Complex D in the Caspian Sea. Due to the limited size of the locks in the Capsian Sea, there were restrictions on the maximum beam of the module which, at the end of the its construction, was found lacking in stability. The module stability was therefore improved by fitting two temporary side sponsons up to its arrival at Complex D where it was eventually lifted above water and permanently fixed on piles.

Interprogetti Genova has been dealing with the design of new builds and conversions of a wide range of ships such as self-discharging bulk carriers, floating transhipment terminals, livestock carriers, tugs, oil & chemical tankers, ro-ro cargo, ro-ro pax, passenger ships, yachts, barges, offshore units, etc. Click here and discover more design and engineering​ work.

Design of livestock carrier: New building Ocean Swagman

Design of livestock carrier: New building Ocean Swagman

These are the last two new livestock carriers designed by Interprogetti Genova and capable to transport 6000 cattle or 25000 sheep with focus to enhance welfare and safety of livestock, vessel and crew.

The design was based on the experiences gathered with the design of other eight designs of new builds and conversions of livestock carriers and therefore on these vessels the results of several of several optimization processes on pen arrangements, ventilation systems and propulsion systems were applied.

Interprogetti Genova has been dealing with the design of new builds and conversions of a wide range of ships such as self-discharging bulk carriers, floating transhipment terminals, livestock carriers, tugs, oil & chemical tankers, ro-ro cargo, ro-ro pax, passenger ships, yachts, barges, offshore units, etc. Click here and discover more design and engineering work.

Design of transhipper: New building Princess Cloe

Design of transhipper: New building Princess Cloe

The F/C Princesse Chloe is a non propelled, open sea floating transhipper capable of loading or discharging bulk cargo (iron ore, coal and other dry bulk materials) from vessels up to the largest Cape-size. She is one of the latest transhipping unit we have designed and represents the results of 30 years of experience gained in this peculiar sector.

Interprogetti Genova has been dealing with the design of new builds and conversions of a wide range of ships such as self-discharging bulk carriers, floating transhipment terminals, livestock carriers, tugs, oil & chemical tankers, ro-ro cargo, ro-ro pax, passenger ships, yachts, barges, offshore units, etc. Click here and discover more design and engineering​ work.

EEXI Calculation

EEXI Calculation

EEXI – the IMO regulations introducing the EEXI (Energy Efficiency Existing Ship Index ) is representing a big nightmare for many Ship Owners. The EEXI is nothing else than an extension of the EEDI (valid for new buildings) but, unfortunately, it shall be applicable to the majority of the existing ship regardless the age, notation , class etc.

So far Interprogetti Genova has carried out a number of calculations for different ship Owners and the results are basically in line with the expectations: many ships, regardless the type, are not in compliance. What to do? What to suggest to the Owners? Of course, engine power limitations appear to be the fastest and simplest way to fulfill the requirements, however, other corrective actions (alone or in combination with engine power limitation) can be useful.

Such actions can be evaluated on a case-by-case basis by our team in order to assess the most cost-effective way to be in compliance.

Furthermore, since an essential parameter for determining the attained EEXI is the reference speed of the vessel, Interprogetti Genova can provide also CFD calculations or assistance to perform official sea trials to determine the performances of those ships whose results are not available.

If you want to know more or you want to evaluate the energy efficiency index of your vessels please contact us.

Scrubber and ballast water treatment system retrofit

Scrubber and ballast water treatment system retrofit

Based on measurements carried out through 3D laser scan surveys, Interprogetti Genova has been dealing with dozens of design packages for the retrofit of ballast water treatment system and scrubbers on board of different type of ships (bulk carriers, cruise ships, tankers, RO-RO ships, RO-PAX).

Interprogetti Genova has been dealing with the design of new builds and conversions of a wide range of ships such as self-discharging bulk carriers, floating transhipment terminals, livestock carriers, tugs, oil & chemical tankers, ro-ro cargo, ro-ro pax, passenger ships, yachts, barges, offshore units, etc. Click here and discover more design and engineering​ work.

Sea fastening design and transportation of 1300 t crane capacity

Sea fastening design and transportation of 1300 t crane capacity

The job consisted in studying the load-out operations and in designing the grillage and sea-fastening, where we were required to avoid any welded connection to the crane structures, as well as to prepare the towing plan to ensure safe sea passage during transportation.

Interprogetti Genova has been dealing with the design of new builds and conversions of a wide range of ships such as self-discharging bulk carriers, floating transhipment terminals, livestock carriers, tugs, oil & chemical tankers, ro-ro cargo, ro-ro pax, passenger ships, yachts, barges, offshore units, etc. Click here and discover more design and engineering​ work.

Design of modular barge for trenching operation

Design of modular barge for trenching operation

Trimarano 1
trimarano 3
trimarano 4
trimarano 2

The job consisted in designing suitable modules sized and fitted as an ISO 40 TEU container to form a trimaran for shallow water trenching operation. The modules are connected each other through special bolted connections and transversal beams capable of withstanding any kind of environmental loads from any direction allowing therefore unrestricted service to the unit.

The advantage of such a design consists in avoiding expensive overseas towing operations to transfer the unit from one offshore site to another. As a matter of fact, after having completed trenching operation in one site, the trimaran can be simply disassembled in different 40 TEU containers. Transfer to a new oversea offshore site is simply realized by transporting the different modules by truck and then by loading the same onboard of a standard containership, allowing to minimize actual transport expenses.

Interprogetti Genova has been dealing with the design of new builds and conversions of a wide range of ships such as self-discharging bulk carriers, floating transhipment terminals, livestock carriers, tugs, oil & chemical tankers, ro-ro cargo, ro-ro pax, passenger ships, yachts, barges, offshore units, etc. Click here and discover more design and engineering​ work.

Marine warranty survey for transportation of heavy modules

Marine warranty survey for transportation of heavy modules

Interprogetti Genova has conducted dozens of marine warranty surveys during transhipment of heavy modules. One of the two pictures refer to the lifting of a module of about 315 t which was supervised at site. The job included the checking of sea-fastening for transportation from Black Sea to Kazakhstan and also the supervision for the towing tug and relevant towing arrangements.

Click here and discover more consultancy and survering work.