Australian_Science_Illustrated_Issue_52_2017

(Greg DeLong) #1
ships as tall as 20 storey buildings. Moreover,
the handling of the staggering number of
containers is not an easy task.
The average industrial port can load and
unload 115-120 containers per hour from one
single container vessel. At this speed, it
would take 160 hours, or about one week, to
load and unload all the containers of the MSC
Oscar. To prevent bottlenecks and avoid
costly wasted time, the ships should not be in
the port for any more than 24 hours, and so,
industrial ports throughout the world are
investing in robotic technology. The port of
Los Angeles, which handles about nine million
containers a year, is a good example of the

automation of the ports. When a vessel
berths in Los Angeles, it is still a crane
controlled by a human being which
moves the containers from ship to
pier, but subsequently, robots take
over. On the pier, the containers
are picked up by driverless
cranes, known as straddle
carriers, which take them to the
central storage site, placing
them on top of each other. GPS
control and laser sensors in the
asphalt make sure that the four-
wheeled robots do not collide.
Subsequently, automatic

New Tech Makes


Super-Ship Economical


And Practical


The MSC Oscar container vessel has more horsepower than
80 Formula 1 racers combined. But the purpose is not speed.
The giant is fine-tuned to pollute as little as possible.

Air purifies exhaust


4


Before the exhaust gas
escapes into the air, it is
mixed with the engine
intake air and cooled. The system
reduces the emissions of harmful
nitrogen oxides, NOx, by about 80
per cent. Sulphur is also “washed
out” in a chemical process.

Turbocharger boosts the engine


3


The key to optimum fuel efficiency is a modern turbocharger,
which uses the exhaust gas to power a compressor, forcing
more air into the cylinder and boosting engine power.

Reused heat saves CO 2


5


Modern container vessels
use heat recovery to
generate part of the
electricity aboard the ship. The
engine exhaust gas powers a
steam turbine linked with a
generator. The method reduces
the vessel's CO 2 emissions by 9 %.

80,000 HP Engine


1


The heart of the MSC Oscar
is a 15-m-tall and 25-m-long,
80,000 HP diesel engine. A
computer system continuously
adjusts the output according to the
weather. Cruising speed: 42 km/h.

2


3

4

5

1

MAN DIESEL & TURBO

CLAUS LUNAU

MERCATOR MEDIA 2017

scienceillustrated.com.au | 51
Free download pdf