Dole Chile
 Image of the Dole Colombia in Kiel at HDW
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The Dole Chile and her sister ship , the Dole Colombia , are refrigerated container ships built in 1999 by Howaldtswerke-Deutsche Werft in Kiel . All spaces for 1,023 FEU are spaces for integral refrigerated containers . The ships mainly transport bananas in liner service between the Caribbean and the east coast of the USA.
description
The ships are around 205 meters and around 32.2 & meters wide. With a maximum draft of 10.2 meters, they have a load capacity of almost 30,200 tdw. A low- speed two-stroke diesel engine from Sulzer with eight cylinders and the type designation 8RTA72U with an output of 23,920 kW at 97 rpm drives the fixed propeller . This means the ships run 21 knots . The ships are equipped with bow and stern thrusters with an output of 1,450 kW.
Five four-stroke auxiliary diesel engines from the manufacturer MaK (three MaK 8M32 and two MaK 6M329 with outputs of 3,840 kW and 2,880 kW each), which drive five ABB generators (600 rpm), are used for the electrical energy supply . The generators have apparent powers of 4,650 kVA or 3,490 kVA. The generator voltage is 6,600 V. The on- board network is a medium-voltage network, so that the large consumers such as bow and stern thrusters are supplied directly. About Transformers all other consumers with 450 V three-phase or 230V AC supplies. In addition to the auxiliary diesels, a Caterpillar emergency diesel with an output of 320 kW was installed. This drives a generator that has an apparent power of 375 kVA.
The "open" container ships have almost no hatch covers, and only the first hold was equipped with hatch covers. Holds two to five are open to allow better heat dissipation. Each 40-foot refrigerated container - the ships can each load 1023 FEU - consumes around 7 to 12 kW to drive the refrigeration compressor, the condenser fan and the circulation fan, depending on the condition of the bananas. This heat is dissipated to the outside with the help of cargo space fans, the heat dissipation is supported by the cargo spaces open at the top. The refrigerated containers can be stowed in ten bays one behind the other. There is space for eleven containers side by side. The ships are equipped with two Liebherr portal cranes with a capacity of 40 tons for container handling. The deckhouse is at the stern .
The ships are based on the design of the Norasia Friborg class , a series of six container ships also without hatches. They started out with the GL class under the Liberian flag . Later they came under the flag of the Bahamas with home port Nassau . The classification society became Det Norske Veritas .
Controlled atmosphere (CA)
With the help of nitrogen generators , consisting of air compressors and extremely fine membranes, nitrogen is generated from the ambient air according to the principle of reverse osmosis . The introduction of nitrogen into the container largely displaces the oxygen. The air, which has been cooled to 13 to 14 degrees Celsius, and the oxygen content, which has been reduced to two to five percent, result in a greatly reduced metabolism of the green bananas. This means that the bananas can easily be transported in CA refrigerated containers for two to three weeks. With temperature sensors, oxygen and carbon dioxide sensors, the automation devices ensure that the temperature range of 13-14 degrees Celsius, the oxygen range of three to five percent and the carbon dioxide content of five percent are not exceeded.
Ships of the class
| Ship name | Build no. | IMO number | Keel laying, launching, delivery |
|---|---|---|---|
| Dole Chile | 342 | 9185281 | January 4, 1999 - November 22, 1999 |
| Dole Colombia | 343 | 9185293 | April 21, 1999 - December 22, 1999 |
literature
- Dierk Schröder: Yearbook of the Shipbuilding Society , Volume 98, 2004
- Somer, JA: Reefership, 2000
