Tidal energy and its advantages and disadvantages, Biology

Tidal energy

The periodic rise and fall of water level of sea is called tides which are caused by gravitational effect of moon combined with the rotation of the earth. This variation in the sea level is utilized for the generation of electrical power is known as tidal energy.

The tidal can be harnessed by constructing a tidal barrage. During high tide the sea-water flows into reservoir of the barrage and which turns the turbine to produce electricity. Under low tide water from the reservoir flows back into sea and turns the turbine again to generate electricity.

Advantages:

1.        It is renewable source which uses inexpensive sources (water) to generate electricity.

2.       It is reliable source of energy.

3.        It does not produce pollution.

4.       It is highly efficient. (80%).

 

Disadvantages:

1.        It is expensive to construct tidal barrages.

2.      Power is generated such places, where there is little demand for electricity (coastal areas).

3.      Barrages may affect aquatic ecosystem.

4.      Transportation of electricity is problematic.

Posted Date: 7/11/2012 8:09:24 AM | Location : United States







Related Discussions:- Tidal energy and its advantages and disadvantages, Assignment Help, Ask Question on Tidal energy and its advantages and disadvantages, Get Answer, Expert's Help, Tidal energy and its advantages and disadvantages Discussions

Write discussion on Tidal energy and its advantages and disadvantages
Your posts are moderated
Related Questions
Some ecosystems possess relatively large number of species as compared to others. This is particularly true of tropical forests which exhibit a very rich-biodiversity. For example,

Q. Anatomic Factors in Patient Selection for Mitral Valvuloplasty ? The ideal patient is young, has pliable non calcified mitral leaflets, and mild subvalvular disease. TEE may

Q. How are the epithelial tissues classified? The epithelial tissues are classified according to the shape of the cells that form it epithelial cells may be columnar, cuboidal,

Devonian  is the period of geologic time from 410 - 360 million years before the present. Life on land diversified, with amphibians appearing late in this period of time. Plants we

Define Instrument for Absorbed Radiation - Spectrophotometer? In contrast to colorimeter, spectrophotometer is an instrument that is capable of splitting the incident radiation

Q. What are the specialized structures that help the adhesion between cells? The structures responsible for the union of the epithelial cells are called cell junctions. The mai

What is the basis of classifying 'cancer? Name and describe the different Categories of cancer. Mention any two approaches for cancer treatment. What is embryo culture? What is

Define Systematic Botany - Taxonomy? We will now learn something mare about systematic botany. The early recognition of harmful and useful plants was the beginning of systemati


What are the major conventional symbols and signs used in genetic family trees? In the genetic family trees the male sex is usually represented by a square and the female by a