18-01-2018, 10:08 AM
abstract
Solar energy is an abundant and renewable energy source. In India, the annual solar power incident on land is about 20,000 times the current electrical energy consumption. Solar energy use in India is a thin energy source (the average daily solar energy event in India is 5 kilowatt / m 2 day) and therefore large amounts of energy must be collected, which will lead to higher initial capital investment. It is also an intermittent energy source, so solar energy systems need to include storage to take care of energy requirements in the days of nights and clouds. This has increased the capital cost of such systems. One way to overcome these problems is to use a large part of the water for storage and storage of solar energy. This concept is called a solar pond.
Solar pond principle
In a clear natural pond, about 30 ~ solar radiation reaches a depth of about 2 meters. This solar radiation is absorbed under the pond. The hot water below becomes lighter and therefore increases on the surface. Here the heat in this ambient air decreases and therefore, a natural pond does not get much temperature from the surroundings. If some mechanism can be prepared to stop the mixture between the upper and lower layers of a pond, then the lower layers of the temperature will be higher than the upper layers. It can be obtained in many ways. The easiest way to make lower layer density compared to the upper layer by adding salt to the lower layers is to use salt generally, because they have low cost because they have sodium chloride or magnesium chloride. Ponds that use salts to stabilize the lower layers are called 'salinity slope'. There are other ways to prevent mixing between upper and lower layers.
Solar energy is an abundant and renewable energy source. In India, the annual solar power incident on land is about 20,000 times the current electrical energy consumption. Solar energy use in India is a thin energy source (the average daily solar energy event in India is 5 kilowatt / m 2 day) and therefore large amounts of energy must be collected, which will lead to higher initial capital investment. It is also an intermittent energy source, so solar energy systems need to include storage to take care of energy requirements in the days of nights and clouds. This has increased the capital cost of such systems. One way to overcome these problems is to use a large part of the water for storage and storage of solar energy. This concept is called a solar pond.
Solar pond principle
In a clear natural pond, about 30 ~ solar radiation reaches a depth of about 2 meters. This solar radiation is absorbed under the pond. The hot water below becomes lighter and therefore increases on the surface. Here the heat in this ambient air decreases and therefore, a natural pond does not get much temperature from the surroundings. If some mechanism can be prepared to stop the mixture between the upper and lower layers of a pond, then the lower layers of the temperature will be higher than the upper layers. It can be obtained in many ways. The easiest way to make lower layer density compared to the upper layer by adding salt to the lower layers is to use salt generally, because they have low cost because they have sodium chloride or magnesium chloride. Ponds that use salts to stabilize the lower layers are called 'salinity slope'. There are other ways to prevent mixing between upper and lower layers.