Also solar power is also improving. It was is way safer than a traditional electric current. It does not come with the high chance of shock or electric currents like a regular power grid does. Everyday solar power is also improving. Aesthetics are improving making the solar move versatile compared to the older models.
It is free of cost and has low maintenance cost. Only problem with solar panel, it cannot produce energy in bad weather and climate condition. But it has greater efficiency than other energy resources available in the nature. It only need initial investment, it has long life span and lower emission. The sun is the primary source of almost all the energy used on earth.
Should Lithium-ion battery be used widely as rechargeable battery in torchlights compared to disposable alkaline battery? Battery is a device containing one or more electrochemical cells that convert stored chemical energy into electrical energy. Every battery has a cathode, or positive plate, and an anode, or negative plate. These electrodes are separated and are usually immersed in electrolyte that allows the movement of ions as the electron flows between the positive and negative terminals. The very basic operating principle of a battery is shown on the diagram below.
A hybrid electric vehicle is defined as the vehicle with two or more sources to drive the vehicle. The sources may be diesel, electricity, gas, etc. The hybrid vehicle contains rechargeable batteries which can be recharged when necessary with the help of the electric source externally. Now-a-days, rapid changes and advancement in the motor drive and energy storage technology increases the production of plugin hybrid electric vehicle (PHEV). The proposed topology is used for on-board chargers of the batteries.AC-DC converter with power factor correction fed with the isolated dc-dc high frequency transformer converter is used as the main component for on -board charger in PHEV.
It is also used in the power cells. They must undergo redox reaction. The fuel cells has a big advantage of not charging as you keep on supplying the fuel in the as the oxidant. ADVANTAGES OF THE HYDROGEN OXYGEN FUEL CELLS: • They are more efficient than the conventional power stations • The hydrogen oxygen fuel produces a non toxic by product thatb is water • They are even used as a fuel for rockets • The costs of the maintains is low DISADVANTAGES OF THE HYDROGEN OXYGEN FUEL CELLS: • The cost of maintains is low but the initial cost is very
1.1. Overview Modern electrical power systems have three separate components - generation, transmission and distribution. Electrical power is generated at the power generating stations by alternators driven either by steam or hydro turbines. Most of the power generation takes place at generating stations that contain more than one alternator-turbine set. Depending upon the type of fuel used, the generating stations are categorized as thermal, hydro, nuclear etc.
Renewable energy Introduction Renewable energy is energy production from sources that are naturally available in the environment and considered to be more sustainable to development and energy use. This implies that these sources of energy are inexhaustible without the risk of over exploitation and endangering of future populations. They also have minimal carbon dioxide (Co2) and Green Houses Gases (GHG’s) emissions, and therefore have less devastating effects on the environment and continual climate change. A discussion on the various sources of renewable energies available and ways in which improvement and advancement in technology can lead to increased efficiency and reduced pollution will ensue. Energy use though not reflective of a nation’s
Renewable sources include wind, water, sun, geothermal and biomass. It is clean, sustainable and may be considered as infinite. In comparison with non-renewable sources, it does not emit gases hazardous to the environment and in the health of the community. These advantages come with disadvantages. The construction of these sources is expensive and takes a large amount of space.
Introduction A linear power supply is a type of voltage convertor that uses a transformer and a rectifier to convert AC voltage into DC voltage. It contains four basic components: a transformer, rectifier, filter capacitor, and voltage regulator. In this chapter, we will investigate each part of a linear power supply and illustrate the main advantages and disadvantages of using such a supply power. Figure 1.1: linear power supply circuit (williamson-labs,2016) 1.2. Transformer A transformer, as the name implies itself, it transforms high voltage electricity from power station to lower voltage electricity.
Secondly, the diesel fuel and electrical power used in public transportation systems are less polluting, unit-by-unit, than the gasoline used in most private automobiles or light trucks. In parallel, government should have policies to enhance the public transportation system such as a metro network, a modern bus rapid transit system. Forests also help reducing pollution and cleaning up the