What Is The Difference Between Renewable And Nonrenewable Energy Sources – Renewable resources are resources that mankind has been using since the beginning of its life. Our ancestors used wood for cooking and heating, wind energy for transportation, and solar energy for lighting.
But after the discovery of renewable resources like fossil fuels, coal, etc., the work of the entire mankind underwent a dramatic change, leading to rapid industrialization. The use of fossil fuels has become a necessity in our lives, which pollutes the earth a lot.
Resources that are constantly consumed by humans but are constantly renewed by nature are called renewable resources. These resources are inexhaustible because they cannot be depleted all the time. Renewable sources are also called “conventional” energy sources.
Non-renewable resources are called non-renewable resources. Renewable resources are non-replaceable and non-renewable. It took thousands of years to create the renewable resources inside the earth in the form of coal, fossil fuels etc.
Renewable resources do not affect the Earth’s environment and do not cause climate change in the atmosphere.
Renewable sources do not pollute the environment and do not release any pollutants into the environment.
Renewable sources pollute the earth by releasing various types of pollutants into the air, water, soil, etc. when they burn fossil fuels.
Renewable sources are called “clean and green” sources of energy because they do not harm the environment.
Non-renewable resources can adversely affect the health of living organisms by releasing smoke, radiation, carcinogens or carcinogens into the environment.
Using non-renewable resources disturbs the balance in nature, which is caused by mining the earth for coal, minerals, fuel etc.
Earth has a finite supply of renewable resources. We use them much faster than we create them. Eventually they will run out and our future generations will have no oil or nuclear resources. We are responsible for transferring resources to our future generations, for which we must use renewable and non-renewable resources in a balanced way and promote resource sustainability. prof. Kuldeep Singh Parihar Meh. Branch
The word “power” comes from the Greek word “power” which means the ability to do work. Energy is in various forms: kinetic energy potential energy internal energy mechanical energy thermal energy chemical energy etc.
They are divided into two types: Renewable Energy Sources Energy sources that are continuously produced in nature and will not run out in future are called renewable energy sources. Example:- Wind energy, solar energy, hydel energy, wave energy etc. b) Renewable Energy Sources Energy sources that can be depleted in the future are classified as renewable energy sources. Example:- Fossil fuels (coal, oil, coal gas and natural gas), nuclear fuels (uranium).
They are inexhaustible, for example: – solar energy, wind energy etc. They are non-exhaustible, for example:- coal, oil, natural gas etc. Free in nature and eco-friendly are not free and eco-friendly. They regenerate naturally after use. These resources once used cannot be recovered. The initial cost of using energy sources is high, but the maintenance costs are low. Both initial cost and maintenance cost are high. Impossible. Continuous energy supply is possible due to renewable energy sources.
5 Solar Energy Solar radiation is energy radiated (radiated) by the Sun. The energy produced using sunlight is called solar energy. Solar Constant “It is the amount of solar energy received per unit time per unit area perpendicular to the direction of the Sun at the Earth’s mean distance from the Sun.” The value of the solar constant is roughly measured in kilowatts per square meter. Solar thermal energy harvesting includes liquid flat collectors solar ponds solar photovoltaic cells
6 Flat Collector A flat plate collector is the simplest and most common type of solar collector used to capture the sun’s rays. This type of manifold is suitable for low temperature applications such as water heating, cooking, grain and vegetable drying, building heating and cooling etc.
1. Absorbing plate: Usually made of copper and covered with black paint to absorb the sun rays falling on it. 2. Water pipes. These are metal pipes through which water circulates. The tubes are attached to the absorbent plate. 3. Transparent cover: usually made of 4 mm thick tempered glass, which helps to reflect the incoming solar energy back to the absorbing plate. As a result, heat is trapped in the air space between the absorber plate and the glass cover. 4. Insulation: – Thermal insulation of resin-bonded mineral wool is placed under the absorber plate to prevent conductive heat loss.
8 During operation, cold water from the upper tank flows through the water pipes of the solar heater. When the sun rises to a certain level, its energy passes through the transparent cover and hits the absorber plate. The heat energy absorbed by the absorber plate is transferred to the cold water flowing through the pipes. Heated water, which is lighter than cold water, rises and flows to the top of the solar water tank.
9 Solar Pond The figure shows a diagram of a solar pond constructed below ground level. Solar pond has 3 different zones in which the salinity increases from the top of the pond to its bottom.
10 SUN POND In a pure natural pond, sunlight reaches the bottom of the pond and heats the water. The hot water at the bottom is lighter and therefore rises to the upper surface, where it gives off heat to the atmosphere. Solar layers of the pond by dissolving the salt in the bottom layer of the pond. A simple mechanism is achieved by creating a pond over a large area and adding a salt of sodium chloride or magnesium chloride. The water becomes too heavy for the salt dissolved in the water to rise to the surface of the pond.
11 Cont., , 1) The upper zone is called the surface clean water zone, which acts as a solar collector. 2) The upper and lower zones are separated by a gradient zone where salt concentration increases with increasing depth. This reset zone acts as a transparent seal between the upper and lower zones. 3) The lower zone has the highest salt concentration and is the zone where solar energy is collected and stored as heat. It is also known as storage area. Hot water remains in the bottom layer of the pond from which useful heat can be extracted and used for various purposes.
12 Photocell Photovoltaic cell, also known as solar cell. It is a device that converts sunlight into electrical energy. A photovoltaic cell consists of two layers of semiconductors. The semiconductor is made of silicon and other impurities are added to improve the properties.
13 The first layer is positively charged (p-type silicon) and the second layer is negatively charged (n-type silicon). Since sunlight is made up of solar energy photons, when sunlight hits a photovoltaic cell, the semiconductor material absorbs the photons. When the negative layer of a semiconductor material observes enough photons, electrons are ejected from the material, moving toward the positive layer. This flow of electrons creates an electric current. The electricity generated by the photovoltaic cell can be used directly or stored in batteries. The output power can be increased by connecting several photocells together.
14 The first layer is positively charged (p-type silicon) and the second layer is negatively charged (n-type silicon). Since sunlight is made up of solar energy photons, when sunlight hits a photovoltaic cell, the semiconductor material absorbs the photons. When the negative layer of a semiconductor material observes enough photons, electrons are ejected from the material, moving toward the positive layer. This flow of electrons creates an electric current. The electricity generated by the photovoltaic cell can be used directly or stored in batteries. The output power can be increased by connecting several photocells together.
16 The kinetic energy of wind can be converted into mechanical work using a windmill or wind turbine. A wind turbine consists of specially designed blades attached to a low speed shaft. The shaft is connected to a small generator mounted on the axis of the windmill. Most turbines have two or three blades and are large enough to extract power. Since wind speed increases with height, the blades are mounted higher than ground level using a tower. This allows the blades to capture more energy and thus produce more electricity. During operation, the windmill rotates due to the kinetic energy of the flow
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