LNG hybrid barge

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The LNG hybrid barge is a project through which ships, in particular cruise ships , can be supplied with electricity in the Port of Hamburg using LNG as fuel .

background

Principle of shore power supply with a shore connection for ships

The electric power of the cruise ships in port operations for lighting, ventilation, heating and kitchen operations has so far been generated by their own diesel generators on board. Low-sulfur diesel fuel with a maximum of 0.1% sulfur is used as fuel . Compared to steam power plants (lignite, hard coal), diesel generators have a good efficiency of around 40 to 45%. The energy requirement is around 5,000 to 15,000 kW, depending on the size of the cruise ships. Around 0.5 to 1 kg of CO 2 are emitted per kWh . In addition, large amounts of sulfur dioxide, nitrogen oxides and soot are emitted compared to motor vehicle traffic. To reduce these emissions , discussions have been held on several occasions and a power supply from land ( shore connection ) or a gas-powered electricity generation barge have been proposed as solutions . The background and driving force was also the fact that the regulations on the emission of nitrogen oxides were tightened.

LNG hybrid barge

In the meantime, a solution for generating electricity on a barge that can be located near the ship to be supplied has also been implemented in Hamburg . Liquefied natural gas (LNG) is used as fuel to generate electricity . The cruise line AIDA Cruises , the Hamburg company Becker Marine Systems GmbH and the Schramm Group proposed an LNG hybrid barge for generating electricity and supplying the cruise ships. The construction costs for the alternative concept LNG hybrid barge were named as 13 million euros. A contractual agreement between Becker Marine Systems and AIDA Cruises provided a basis for setting up a power supply system for the cruise terminal (CC1) in Hamburg's HafenCity from summer 2012 .

To this end, the company Hybrid Port Energy GmbH was founded in Hamburg, a subsidiary of Becker Marine Systems GmbH & Co. KG . This was designed by the barge and constructed with the support of Schlüter Marine Solutions . The building of the barge was commissioned to the Slovak shipyard SAM Shipbuilding and Machinery in Komárno and was delivered in autumn 2014.

The LNG hybrid barge was equipped with five Caterpillar G3516C gas gensets by Zeppelin Power Systems . The total output of the gensets is 7.5 MW with pure LNG operation. The Caterpillar engines are pure gas engines with an electrical output of 1,550 kW each. The Caterpillar engines are generally seen in the market as the engines with good load transfer behavior and are therefore predestined for this type of application.

The LNG power barge Hummel supplies the AIDAsol , the LNG is located in the two isolated 40-foot tank containers on deck at the rear

The 76.7 meter long and 11.4 meter wide power generation barge arrived in Hamburg at the beginning of October 2014. It was on 18 October 2014 at the Cruise Center HafenCity in the name Hummel baptized with the necessary port connections were for the supply of a cruise ship ( AIDAsol tested). The barge is located near the berth of the ship to be supplied - initially AIDA Cruises cruise ships . As part of the class acceptance by Bureau Veritas , all five generator sets were operated, the total load transfer from 0 to 7.5 MW output took place in less than two minutes.

The first trial run to power the AIDAsol was carried out on May 29, 2015. Further operation was started by the operating company Hybrid Port Energy in 2016.

11 kV power cable from barge to land

Cable connection from the barge to the cruise ship

The electricity is routed from the barge to the switch box on the shore via a cable bridge. The shore connection is made via huge plugs. From here an underground cable connection leads to the cruise terminal. Here at the berth of the cruise ships there is another switch box in a shaft. The connection to the cables leading to the ship is made via plugs. A specially designed crane-like device is used for this. This enables the arm-thick cables to be handled and the necessary tide compensation. The shore connection of the only previously equipped cruise ship AIDAsol is on the port side .

  • The cruise ship AIDAsol is supplied with electricity in the port of Hamburg, which was generated by the fuel LNG on the LNG hybrid barge (bottom right)

See also

Web links

Individual evidence

  1. ↑ 100 million for the environment . In: Deutsche Seeschifffahrt , issue 10/2013, ed. Association of German Shipowners, Hamburg 2013
  2. ↑ Die Welt : Senate helps Aida with shore power project , August 15, 2012, accessed on April 17, 2013
  3. ↑ LNG Hybrid: Project LNG HYBRID Barge - The environmentally friendly power supply in the Port of Hamburg , accessed on April 17, 2013
  4. ^ AIDA Cruises: Environmentally friendly power supply in the Port of Hamburg , August 14, 2012, accessed on April 17, 2013
  5. ↑ Christoph Thomsen-Jung, Lars Fahrenholz: First LNG engines from Caterpillar . In: Hansa , issue 11/2014, pp. 22-24, ISSN  0017-7504
  6. ↑ Eckhard-Herbert Arndt: Power Barge will be christened tomorrow . In: Daily port report of October 17, 2014, p. 3
  7. ↑ Eckhard-Herbert Arndt: "Hummel" now generates clean electricity . In: Daily port report of October 21, 2014, p. 4
  8. ↑ Premiere for gas containers · First box for LNG hybrid barge arrives in the port of Hamburg . In: Daily port report of December 17, 2014, p. 3
  9. ↑ Successful testing of the LNG hybrid barge "Hummel". In: Schiff & Hafen , issue 4/2015, p. 17
  10. ↑ LNG Hybrid Barge ready for Hamburg · "Hummel" has successfully passed the test phase . In: Daily port report of March 13, 2015, p. 1
  11. ↑ Eckhard-Herbert Arndt: LNG barge "Hummel" runs smoothly . In: Daily port report of 7 July 2016, p. 2