Page 62: of Maritime Reporter Magazine (March 2015)

BOAT OF THE MONTH

Push Boats: F rom Turkey to Brazil he shallow draft market in zil to Argentina and/or Uruguay through m draft at the wet season, with a 7200 shallow draft operation. The major elec-

South America continues to the Paraguay-Parana waterway. The bHP diesel-electric HFO powered push- tric components (AFE drives, propulsion strengthen, powered by orders total distance is over 2500 km, much of boat with azimuth drives and propellers motors, generators, etc.) are ABB com-

Tsuch as Hidrovias do Brasil it navigating through extremely curvy in nozzles con? gured for shallow wa- ponents, supplied by Elkon. The gen-

S.A. 2013 deal for eight HB Pushboat river sections which make excellent ma- ter operation. The DE system is an AC erator engines are three Wärtsilä 9L20,

ASUNCION-PYs, which represents a neuverability a necessity. variable rpm controlled designed and in- medium speed diesels, each producing new generation of powerful Shallow An additional crash stop requirement tegrated by approved ABB system inte- 1,800 bkW at 1,000 rpm. When a low

Draft River Push Boat designed speci? - of 2.5 ? otilla length proved to be a guid- grator Elkon/Imtech with complete ABB level sailing speed/power is required on cally for South America inland water- ing factor. The ? otillas will consist of components. During the sea trials, maxi- board, the ? rst engine starts at full load ways logistics. Robert Allan Ltd. (RAL) one push-boat pushing 16 barges, with a mum bollard pull (69 tons) and speed of where the Veri? ed Frequency Drivers designed and Vienna Model Basin opti- total capacity of 40,000 dwt. The boats 13.2 knots were displayed performed. separates the power to the propellers mized, the total deal for eight push boats will be pushed hard, operating 24 hours UZMAR SDP 4600 Pushbaot is a evenly. If the power requirement reaches is customized for Hidrovias do Brasil per day, 11 months per year. strong contribution to Hidrovias doBra- up to 40%, the second engine starts to

S.A., a river iron ore transport subcon- UZMAR worked with Robert Allan sil’s dedicated strategy of developing a feed the propellers, and the third engine tractor company for Vale. The boats are Ltd., which conducted extensive CFD modern and internationally competitive follows this routine when the power re- designed to meld power with maneuver- analysis to meet demands for maneu- inland waterways logistics. quirement reaches to 70%. This modi? - ability in a 69 ton bollard package. verability maximized fuel economy and The diesel electric system is designed cation is designed to provide high fuel

The main concern of the ship operator to comply with the crash stop require- and manufactured by Turkey’s leading ef? ciency and longer life circle for the were shorter river voyage times with so- ment. As a result, the hull shape, tunnel ship electrical engineering and manufac- main engines and low CO2, NOx, SOx phisticated power management technol- geometry and propulsive components turing company ELKON with ABB pow- and PM emissions. These push boats ogy, shallow draft with increased dead- have been optimized for those speci? c er electronics and supervision, which is a will run on HFO, with the ability to oper- weight of speed, improved sea keeping requirements. This was then veri? ed by member of IMTECH Group. These push ate on MDO, if needed. Each push boat ability, increased crew comfort, higher a series of model tests conducted at the boats are propelled by a state-of-the-art has a total fuel capacity of 500 cu. m. of escort force performance, high propul- Vienna Model Basin in Austria. diesel-electric propulsion system, with HFO and 30 cu. m. of MDO, and a bal- sion technology, greater endurance, low The result of the deep researches creat- three main diesel generator sets provid- last capacity of 400 cu. m. The potable emissions and low fuel consumption. ed the new generation pushboat which is ing 3 x 1,710 ekW of power to 3 x 1,600 water capacity of 34 cu. m. is supple-

The vessels will be used for inland wa- a 45.6 m length overall, a 16.5 m beam, kW motors, each driving a Schottel SRP mented by two onboard ? ash evaporator terways logistics from Colombia in Bra- a 2.1 m draft at the dry season and a 2.4 1215 Z-drive with nozzle modi? ed for units.

Builder:

UZMAR Workboat and Tug Factory

Designer: .................Robert Allan Ltd.

Operator: ..............Hidrovias do Brazil

Country: ....................................Brazil

Flag: ....................................Paraguay

Total number of sister ships completed already: ................ 6

Contract date: ............................2013

Delivery Date: ......................Q1 2015

Length, oa: ...............................45.6m

Breadth, moulded: ..................16.5m

Design, draft: .............................2.1m

Service Speed: .................13.2 knots

Bollard Pull: ...........................69 tons

Classi? cation: ................................BV

Navigation area: ..........Inland Waters

Main engine(s): ..........Wärtsilä 9L20

Make: ....................................Wärtsilä

Number: ............................................3

Fuel: .................. HFO, with the ability .............................to operate on MDO

Output of each engine: ...1,800 bkW ......................................at 1,000 rpm

Propeller: ......................Schottel SRP .......................................1215 Z-drive

Number: ............................................3

Propulsion: ..................Diesel-electric ..............................propulsion system

Propulsion Power: ......3 x 1,710 ekW

Complement: .................................18

Crash Stop Requirement with adopting the Frequency Mode Effect Analyses 62 Maritime Reporter & Engineering News • MARCH 2015

MR #3 (58-65).indd 62 MR #3 (58-65).indd 62 3/3/2015 11:47:07 AM3/3/2015 11:47:07 AM