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Wave Power
Wave power refers to the transport of energy through ocean surface waves and putting that energy to functional use such as for desalinating water and generating electricity. Wave power generation is not a commonly-used commercial technology.
423 Questions
== == In diagnostic ultrasound axial resolution is influenced by a number of factors including transmission pulse length and frequency of the probe. For best axial resolution short pulses are used - long pulses can potentially improve the signal to noise ratio but their use often results in "range side lobes", effectively a reduction in axial resolution.
Pulse repetition frequency (PRF) is a separate issue to axial resolution however high frequency probes are able to have a higher PRF (resulting in higher frame rates) than low frequency probes due to the higher rate of absorption of the higher frequency signals.
What are the advantages and disadvantages of ocean thermal energy?
Ocean thermal energy conversion (OTEC) uses warm surface water to produce steam (using either ammonia or a vacuum) to generate electricity. Cooler deep water then cools the system and the cycle continues. Enough electricity is produced to drive the pumps and the excess is exported to the grid.
Advantages:
- Generates electricity with no greenhouse emissions.
- Totally renewable energy.
- Works day and night with only routine pump maintenance and little ongoing costs.
- Open system version produces desalinated water as well.
- Unlimited source of free energy especially in tropical waters.
Disadvantages:
(are few)
- Needs a large difference in temperatures (surface and deep) for best results.
- Needs to be close to the national grid.
- Needs a constant supply of warm and cold water, so only suitable for tropical locations.
- Plant needs safe location from storms and surf.
There are no obvious advantages of tidal waves. The damage they do outweighs anything else.
What is the Salter's duck Explain briefly?
Salter's Duck, also called the Edinburgh Duck, is a floating device designed to capture the energy of ocean waves. As the Duck bobs up and down in the waves, a pendulum inside swings, generating electricity.
The idea was developed during the oil crisis of the 1970s. Now that interest in renewable energy is again urgent, it is being worked on again. See the animation at the link below.
When did Raymond Gilmartin first go to work for Merck?
In 1994 Gilmartin was recruited to be the new president and chief executive officer of Merck, the large pharmaceutical firm headquartered in New Jersey.
What are the benefits of exercising on a power rider machine?
Power rider machine ensures that the muscles develop fast. The machine can be set in such a way that it can accommodate people at any stage of exercise.
Yes because the tide is a reliable energy source thanks to the gravity of the sun and moon. The major disadvantage is that it is still experimental and the ability to transfer power from these stations to land is difficult.
Why cant you see when a flashlight hits your eyes?
because when light is let in your eyes your pupil closes so thus causing temporary blindness
What are the non renewable resources in Brazil?
The Brazilian energy matrix is composed of 54% of non-renewable sources 2, the lowest percentage among major economies. The country is, since 2006, self-sufficient when it comes to oil production. Brazil has one of the largest companies in the worldwide and world-leading technology to extract offshore in deep waters. In recent years, as Petrobras' resulted in one of the greatest discoveries of reserves, the pre-salt layer.
Bilaterally, Brazil has maintained relevant dialogue on the topic of energy with Argentina, China, USA and European Union. The country follows, while not a member, the activities of the International Energy Agency (IEA) and the Organization of Petroleum Exporting Countries (OPEC) in light of its importance on the world stage. In addition, participates in the discussions of the International Energy Forum (IEF).
In the regional context, we highlight the importance of energy integration in South America Brazil has a significant role in such organizations as the Latin American and Caribbean Energy (OLACDE), the Union of South American Nations (UNASUR) and the Common Market South (MERCOSUR), in its Sub-Working Group to focus on energy (SGT-9). The goals are to integrate energy for the integral, sustainable resource of the region and developing an infrastructure for inter-regional agreement with the three pillars of sustainable development: economic, social and environmental.
Regarding international organizations, Brazil has a presence in various forums and summits in the BRIC (Brazil, Russia, India and China), South-Africa (ASA), India-Brazil-South Africa (IBSA) Latin America and the Caribbean (CALC), Brazil and the Caribbean (CARICOM).
How are waves at Teahupoo so thick and heavy?
Waves in Tahiti-Teahupoo are very thick and powerful because of two main factors, which is reef and dept of water. Waves formed at Teahupoo come from deep water and enters shallow water very dramatically. The wave is traveling through deep waters from where it started and suddenly hits very shallow reef causing the wave to instantly break. Unlike most breaks where waves hit a shelf of reef and slowly begin to break, Teahupoo almost breaks the instant it hits the reef. When this occurs all that water and force fallowing the wave basically folds over and break too soon and it causes the wave to be massive in thickness and size. This is why Teahupoo gets very heavy, it's because of the amount of water that builds up right as the wave breaks.
What makes waves in the ocean?
A periodic disturbance of the particles of a of a body of water, such as in the passage of undulating motion, makes waves in the ocean.
What goes up a chimney down and down a chimney down but never up a chimney up or down a chimney up?
I don't get why, but it's an umbrella
Which wave would have more energy a small wave or a large wave?
I suppose you're talking about small wavelenght or large wavelength. In this case, the answer is that a wave with lower wavelenght has more energy than a wave with higher wavelenght.
You have to consider that the energy associated to an electromagnetic wave is, according to de Broglie:
E = hf
where h is the Planck constant (which is, more or less, h = 6.626·10-34 Js) and f is the frequency of the wave. The relationship between frequency and wavelenght is given by
f = c/lambda
where c is the speed of light and lambda the wavelenght. So finally you have
E = hc/lambda
According to this equation, the higher the wavelenght, the lower the energy.
Is Wave power environmentally friendly?
i think so because its the wind its enviornmentally friendlly because it does not do much harm
