Ocean thermal energy conversion what is it?

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Russell Boyer asked a question: Ocean thermal energy conversion what is it?
Asked By: Russell Boyer
Date created: Mon, Jun 7, 2021 11:05 AM
Date updated: Fri, May 20, 2022 6:44 PM

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Top best answers to the question «Ocean thermal energy conversion what is it»

  • Ocean Thermal Energy Conversion ( OTEC) uses the ocean thermal gradient between cooler deep and warmer shallow or surface seawaters to run a heat engine and produce useful work, usually in the form of electricity. OTEC can operate with a very high capacity factor and so can operate in base load mode.
  • Ocean Thermal Energy Conversion (OTEC) is a marine renewable energy technology that harnesses the solar energy absorbed by the oceans to generate electric power. The sun’s heat warms the surface water a lot more than the deep ocean water, which creates the ocean’s naturally available temperature gradient, or thermal energy.

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Those who are looking for an answer to the question «Ocean thermal energy conversion what is it?» often ask the following questions:

♻️ Explain what ocean thermal energy conversion is?

Basically, Ocean thermal energy conversion is an electricity generation system. The deeper parts of the ocean are cooler due to the fact that the heat of sunlight cannot penetrate very deep into the water. Here the efficiency of the system depends on the temperature difference. Greater the temperature difference, the greater the efficiency.

♻️ How is ocean thermal energy conversion used?

Ocean Thermal Energy Conversion (OTEC) systems use a temperature difference (of at least 77° Fahrenheit) to power a turbine to produce electricity… The vaporized fluid drives a turbine/generator. The vaporized fluid is turned back to a liquid in a condenser cooled with cold ocean water pumped from deeper in the ocean.

♻️ Where is ocean thermal energy conversion used?

virtually inexhaustible renewable energy. Ocean Thermal Energy Conversion (OTEC) is a method that employs naturally occurring temperature differences between warm surface water and colder deep seawater (Thomas, 1993). To be effective a minimum temperature difference between the ocean surface layers is 20oC .

9 other answers

Ocean Thermal Energy Conversion (OTEC) is a marine renewable energy technology that harnesses the solar energy absorbed by the oceans to generate electric power. The sun’s heat warms the surface water a lot more than the deep ocean water, which creates the ocean’s naturally available temperature gradient, or thermal energy.

Ocean thermal energy conversion (OTEC) is the process of extracting energy from the difference in temperature between surface and deep water. The concept was first proposed in the 1880s and the first working power plant was built – in Cuba in 1930 , with additional demonstration units built periodically since then.

Ocean Thermal Energy (OTEC) Ocean Thermal Energy also called Ocean Thermal Energy Conversion (OTEC) refers to a method of using the temperature difference between the deep parts of the sea which are cold and the shallow parts of the sea which are cold to run a heat engine and produce useful work.

Ocean Thermal Energy Conversion ( OTEC) uses the ocean thermal gradient between cooler deep and warmer shallow or surface seawaters to run a heat engine and produce useful work, usually in the form of electricity. OTEC can operate with a very high capacity factor and so can operate in base load mode.

OTEC stands for Ocean Energy Thermal Conversion. It is all about using the differences in warm and cold temperatures of oceans to produce useful products like electric power for coastal or island communities.

French physicist Jacques Arsene d'Arsonval was the first person to consider taking thermal energy from the ocean water in 1881. Ocean thermal energy conversion, sometimes referred to as OTEC, is a form of renewable energy that utilizes the difference in ocean temperature at various depths and converts it to a heat engine.

Ocean thermal energy conversion (OTEC), form of energy conversion that makes use of the temperature differential between the warm surface waters of the oceans, heated by solar radiation, and the deeper cold waters to generate power in a conventional heat engine.

Ocean Thermal Energy Conversion (OTEC) makes use of the temperature difference between the warm surface of the ocean and the coldest layer underneath.

OTEC is a relatively simple technology based on a similar principle to that of an air conditioning system, as seen in diagram below (Ocean Thermal Energy Conversion Technology). A material with a low boiling material such as ammonia is selected and set up to circulate in a closed loop (Ocean Thermal Energy Conversion Technology).

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We've handpicked 22 related questions for you, similar to «Ocean thermal energy conversion what is it?» so you can surely find the answer!

Why is ocean thermal energy?
  • The sun's heat warms the surface water a lot more than the deep ocean water, which creates the ocean's naturally available temperature gradient, or thermal energy. OTEC uses the ocean's warm surface water with a temperature of around 25°C (77°F) to vaporize a working fluid, which has a low-boiling point, such as ammonia.
What is the maximum estimated potential of ocean thermal energy conversion per year?

Explanation: Ocean thermal energy conversion is one of the continuously available renewable energy resource. The maximum estimated potential is 880000 TWh per year.

Where is the world only operating ocean thermal energy conversion plant located?

Makai's Ocean Thermal Energy Conversion (OTEC) Power Plant, Hawaii. Makai Ocean Engineering's ocean thermal energy conversion (OTEC) power plant in the US is the world's biggest operational facility of its kind with an annual power generation capacity of 100kW, which is sufficient to power 120 homes in Hawaii.

Where is ocean thermal energy found?

Ocean thermal energy conversion produces energy from temperature differences in ocean waters. Ocean thermal energy conversion (OTEC) is a process or technology for producing energy by harnessing the temperature differences (thermal gradients) between ocean surface waters and deep ocean waters. Energy from the sun heats the surface water of the ...

What are the disadvantages of ocean thermal energy?
  • Capital investment is very high.
  • Conversion efficiency is very low about 3-4% due to small temperature difference in between the surface water and deep water.
  • Low efficiency of these plants coupled with high capital cost and maintenance cost makes them uneconomical for small plants.
Where does the thermal energy conversion take place?
  • The core activity in thermal to mechanical energy conversion schemes takes place in a working fluid that is a heat carrier. This is usually either steam (in steam machines and steam turbines) or the products of fuel combustion in the air (using the oxygen in the air as an oxidizer).
How does thermal energy move in the ocean?

Oceans are critically important in the movement of heat over the planet… Radiation and conduction are effective in moving heat vertically from the earth's surface, but are relatively unimportant in moving heat horizontally. Water, like air, is a fluid that can carry heat as it moves from one place to another.

How much thermal energy does the ocean have?
  • The figure shows that the ocean’s thermal energy gain over the 55-year period of measurements is about 24 × 10 22 J in the 0-2000 m layer. About 30% of this, 7 × 10 22 J, is in the lower 700-2000 m part, which indicates that a significant part of the energy gets mixed from the surface to moderately deep waters.
Where is thermal energy found in the ocean?
  • Latitudinally, it has been found that much more solar radiation is… …or, more specifically, by the thermal energy available in the upper 60 metres (about 200 feet) of ocean waters. Typically, the underlying ocean should have a temperature in excess of 26 °C (about 79 °F) in this layer.
Which liquid is used in ocean thermal energy?

Open-cycle engines use vapor from the seawater itself as the working fluid. OTEC can also supply quantities of cold water as a by-product. This can be used for air conditioning and refrigeration and the nutrient-rich deep ocean water can feed biological technologies.

What is ocean thermal energy and how does it work?

How Does It Work? Ocean thermal energy conversion is process that uses the difference between the warmer surface water and the deeper cold water of the ocean to produce electricity 2. The warm surface water is used to vaporize a fluid with a low boiling point (such as ammonia). The vapor then expands and as result spins a turbine with a generator ...

What is ocean thermal energy and how is it harnessed?

The difference in temperature between warm surface water heated by the sun and colder water found at ocean depth is a source of energy called ocean thermal energy. The difference in temperature is exploited in OTE conversion plants. The warm surface water is used to boil a volatile liquid like ammonia.

What is the pathway of thermal energy through the ocean?
  • Ocean Currents. Main pathways to transfer thermal energy from warmer regions to cooler regions. Global winds push the water, driving the surface currents of the ocean. Pattern of ocean currents is modified by the Coriolis Effect.
How is ocean thermal energy used to generate electricity?
  • The ocean thermal energy is immense. In tropical regions, the surface water can be 40 or more degree warmer than the deep water. This temperature differ­ence can be utilized in a heat generator to generate electric power. This is called ocean thermal energy conversion (OTEC).
Is the ocean thermal energy corporation a viable technology?
  • With increases in energy prices and technical innovations over the last few years, OTEC systems, such the one produced by the Ocean Thermal Energy Corporation, are becoming viable technological solutions to help provide some of the world’s energy requirements.
Where does thermal energy in the ocean come from?
  • Thermal energy is derived from the sun, which heats the surface of the ocean while the depths remain colder. This temperature difference allows energy to be captured and converted to electric power.
What cause thermal energy?

How is OTEC caused by? Ocean Thermal Energy Conversion (OTEC) is a process that can produce electricity by using the temperature difference between deep cold ocean water and warm tropical surface waters. OTEC plants pump large quantities of deep cold seawater and surface seawater to run a power cycle and produce electricity.

What decreases thermal energy?
  • The thermal energy in a building decreases because of the heat pump and the air conditioner. The thermal energy increases because when the temp increase and it decrease when the temperature goes down.
What happens thermal energy?

It has to have a temperature change. There has to be a Delta T between the object and its environment and that's where the thermal energy doesn't necessarily change, but it does transfer into the phase change material or out of the phase change material. When this happens thermal energy is either absorbed or released.

What is thermal energy?

The total kinetic energy of the particles in a system

What makes thermal energy?
  • Thermal energy is produced by the heat that is given off from specific sources. It is a kind of kinetic energy that is produced when the molecules of a heat-emitting body or object, experience an acceleration in their velocity, or an increase in their molecular activities.
What produces thermal energy?

the sun produces thermal energy