Alternative Energy Sources Used on Board a Yacht
Auto Beauty Business Culture Dieting DIY Events Fashion Finance Food Freelancing Gardening Health Hobbies Home Internet Jobs Law Local Media Men's Health Mobile Nutrition Parenting Pets Pregnancy Products Psychology Real Estate Relationships Science Seniors Sports Technology Travel Wellness Women's Health

Alternative Energy Sources Used on Board a Yacht

An alternator, also known as diesel generator (an AC generator driven by a diesel engine) is the primary source of electrical power on board a yacht. Besides supplying electrical power to the various loads on board a yacht, it also serves as a charger for the batteries, which are the power storage device on board a yacht.

An alternator, also known as diesel generator (an AC generator driven by a diesel engine) is the primary source of electrical power on board a yacht. Besides supplying electrical power to the various loads on board a yacht, it also serves as a charger for the batteries, which are the power storage device on board a yacht. Batteries also supply emergency source of power when there is failure of main source of power.

There are also alternative source of electrical power on board a yacht such as solar panels, wind generators and water charging system. The alternative source of electrical power is used to charge the batteries when the yacht is underway or cruising.

Alternator

Alternator or diesel generator works on a principle that voltage, also known as EMF (electro-motive force), is generated when a conductor is rotated inside a magnetic field. To generate constant voltage, the conductor, also known as rotor has to be driven at a constant angular speed, also known as RPM (revolution per minute). In case of alternators, the prime mover is responsible for rotating the rotor at constant RPM. On board a yacht, the prime mover can be a diesel engine (in case of diesel generator) or the main propulsion engine, through a power take-off drive (in case of propulsion shaft generator).

Solar Panels

Solar panels used on board a yacht are Marine Solar PV Panels, with a maximum rated output of 190 watt. The output of the solar panel is of DC (direct current) type, as compared to that of alternators, which generate AC (alternating current) output. Thus the output can be directly connected to the equipments requiring DC power, unlike the alternators, where you require a rectifier to convert AC power tio DC. Solar panels can be used whenever the yacht is sailing or is alongside a jetty, but only during the day time. A main advantage of solar panel is that there are no moving parts, and hence it requires literally no maintenance. On the other hand, its main disadvantage is the high installation cost and that it requires sunlight to function.

Wind Generators

Wind generator works on the same principle as alternators, in other words a wind generator is nothing but an alternator, whose prime mover is a wind turbine, which is driven by wind energy. The power generated by wind generator is again of AC type. The wind generators can be put is use when the yacht is sailing or is alongside a jetty, since there is no dearth of wind in the coastal areas. But, it works more efficiently during sailing, since the wind velocity is greater. The only disadvantage of the wind generator as compared to solar panel is that it contains moving parts that are subjected to wear and tear, and hence requires some maintenance.

Water Charging System

Water charging system consist of hydrokinetic turbines which serve as prime mover for the alternator, which generates AC power. These hydrokinetic turbines are located on the hull of the yacht under the water level. Since they require continuous flow of water to function, they can only be used when the yacht is moving. Another disadvantage is that these turbine cause a viscous drag, thereby adding to the frictional resistance, and hence to the total resistance of the yacht. More the resistance, greater is the propulsion power required to propel the yacht at a nominated speed.

Advantages of alternative sources of power on board a yacht

  1. Going green: Since these alternative source of power do not require any hydrocarbon fuels, there is less pollution and less carbon emissions, leading to a cleaner and greener environment.
  2. Improved fuel economy: By using alternative source of power, there can be substantial savings on the cost of fuel, thus leading to lower operational costs.

Need an answer?
Get insightful answers from community-recommended
experts
in Energy Science on Knoji.
Would you recommend this author as an expert in Energy Science?
You have 0 recommendations remaining to grant today.
Comments (0)
ARTICLE DETAILS
RELATED ARTICLES
RELATED CATEGORIES
ARTICLE KEYWORDS