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Cruise ships are marvels of modern engineering, offering unforgettable experiences on the high seas. As these magnificent vessels sail across oceans, powering their immense size and providing luxurious amenities to passengers requires robust and efficient engines. Almost all new ships feature a diesel-electric propulsion form. Diesel engines are commonly used in cruise ships due to their efficiency and reliability. They provide the necessary power for propulsion and onboard systems while ensuring fuel economy and compliance with environmental regulations. Gas turbine engines offer high power output and quick response, making them suitable for high-speed cruise ships.
Hybrid Electric Systems:
In addition to this, there is also an additional auxiliary diesel generator for the restoration of power during blackout situations. This generator can be started to power the 440V busbar independent of the main supply, in order to prepare the plant for restart. Each PEM has two separate stator windings known as half-drives. In case of failure of one half-drive, the other one operates the PEM, though at reduced power. Each half-drive has its own propulsion transformer and frequency converter. As we can see, the diesel generators (shown 4 in number) supply 3-phase high-voltage power to the HV busbar rated at either 6.6kV or 11kV.
The Advantages of Getting a Cabin Near the Engine Room
Emissions from cruise ship engines contribute to air pollution and climate change. Key pollutants include sulfur oxides (SOx), nitrogen oxides (NOx), and particulate matter. The environmental impact of cruise ships is a significant concern, and engine selection plays a crucial role in minimizing this impact. Cruise ship operators aim to select engines that reduce emissions and mitigate the environmental consequences of their operations. While COGAS systems offer numerous advantages, they do require regular maintenance and expertise to ensure optimal performance. The integration of gas and steam turbines requires careful monitoring and control to maintain the balance between power generation and fuel efficiency.
Flexibility of engine-room layout and huge space saving
This creates pressure/speed difference that moves it in the direction of the opposite (lower-pressure) side, creating a force at a right angle to the direction of the wind. Unlike traditional cloth sails, the rotor needs no furling (stowing), reefing (reducing sail's area) or line-tending. The rotor sail system is automated and shuts down when unfavorable changes in wind force or direction occur. The LNG cruise ship concept was first introduced by Wartsila (Finnish manufacturing company) and is based on drive shaft propulsion instead of azipods. The LNG tanks' location is in the upper deck area (right below the funnels).
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Is your cruise ship engine missing reliable, must-have power?
Engine Room Fire Forces Marella Cruise Ship to End Voyage Early - The Maritime Executive
Engine Room Fire Forces Marella Cruise Ship to End Voyage Early.
Posted: Mon, 10 Jul 2023 07:00:00 GMT [source]
There are several reasons for this, some of which go beyond just the noise an engine produces. Soon, the ship is reloaded with happy passengers and starts to move again. They make their profits from when the Casinos start, and food is served.
If we broke down cruises into 3 main categories, we could look at the mainstream, premium, and luxury lines of cruise types. You will often see categories within each of these types, but let’s break them down into the major categories for simplicity. Whether it is steam (traditional) or fuel ignition, the pressure generated from either push the pistons up and down in the vessel. These pistons connect to crankshafts through gears, which turns the pistons. When we examine the sheer size of mega-ships, the fact that engines and engine rooms are built so large is understandable.
Dawn Class
The crankshaft connects to the propeller through a long propeller shaft and gears, which further determines its speed in traditional diesel-powered vessels by steam pressure. Generally, the faster the pistons move up and down from the pressure, the quicker the propeller shifts would move. It takes numerous engines to move something that is so massive in size and weight. Combine that with the horsepower required to make it move, and you also appreciate the cruise ship’s knots. If the waters are calm, cruise ships are safely towed to a nearby shore.
Modern cruise ship engines are designed to meet increasingly stringent emissions regulations, such as the International Maritime Organization’s (IMO) MARPOL Annex VI standards. These regulations outline limits for the emission of sulfur oxides, nitrogen oxides, and particulate matter from ships operating in designated emission control areas. So, hop aboard as we embark on a journey to uncover the fascinating world of cruise ship engines and their role in ensuring the smooth and enjoyable sailing experience for passengers.
Fresh water is also produced by reverse osmosis to supplement the evaporator. Regardless of the size of the cruise ship, the engine in question is very, very loud. Fortunately, engineers can compensate for this by utilising sound reduction technology and designing the engine room of a cruise ship to be well-insulated. In general, these crew ships are in their rooms when not on duty and do not get in the passengers’ way.
The No. 1 priority of all cruise lines is to keep all their guests completely safe. If the unexpected happens, know that the cruise ship has backup plans. A well-trained crew knows how to properly handle the situation so you are in safe hands.
Two killed in engine room mishap on cruise ship in Bahamas - Baird Maritime
Two killed in engine room mishap on cruise ship in Bahamas.
Posted: Tue, 26 Mar 2024 07:00:00 GMT [source]
Some cruise ships used smaller generators to power the hotel and amusement functions. The smaller generators allow cruise ships to shut off the main engines in port, reducing pollution. Carnival Cruise Line announced the first LNG-powered vessels in 2015, using a “dual fuel” design. The ships can burn both liquified natural gas and marine fuel, reducing the required fuel storage space. Although you might envision the engine room as a massive open room running the ship’s length, the lower decks are divided into several water-tight compartments. One compartment may house the cruise ship water fresh water systems, another for the main engines, and another for the air conditioning.
Diesel may be something more familiar to what we saw in old movies with steamboats. Even in modern days, we use similar mechanisms, if not labeled the same. The main difference is the source of pressure, which can be the traditional steam, or a fuel ignition. This is where crews demonstrate how to safely use life jackets and outline a designated meeting point in the event of an emergency. Be sure you know where your life jacket is in your cabin in the event you should ever require one.
Unlike the conventional diesel, diesel-electric engines are connected directly to the generators that provide the electricity for the propellers and main generators. You guessed it, most heavyweights, such as engines, are found as low as possible in the lower decks, ground zero. The structural keel is the most closes to the bottom of the vessel and the ship’s wide hull. It runs the length of the vessel down its centerline and in most ships, you won’t have to go far to find the engine rooms. Generally, engine failure only generates a brief interruption before it’s fixed. Cruise lines will never jeopardize the safety of guests nor put them at risk if the cruise ship is unsuitable for sailing.
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