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Energy Production animations and java applets:  


Biomass energy Geothermal energy Solar cell operation
Energy production Hydro energy production Solar energy
Fuel Cells Nuclear energy Wind turbines

Solar cell operation  related topics: Solar cells, Solar cells, part of electronics
An animation of electricty being generated in a solar cell A solar cell then, is a piece of semiconductor made from a p-type layer and an n-type layer connected by an external circuit. The most common materials used for this purpose are silicon doped with boron and phosphorus, although there are many other combinations that are used, Solar cell animation
Electrons and holes moving to create a p-n junction When semiconductor material, regardless of its doping, is exposed to light of sufficient energy, the light will give some electrons in the crystal enough energy to escape from the lattice and move around. This leaves a hole behind that also moves
Electrons and holes Conduction electrons, hole and semiconductor current
How photovoltaics work
HOW SOLAR ELECTRIC WORKS A flash demo how solar panel works, swf file
Maximum Power Point Tracking
Energy levels in semiconductors Energy levels in semiconductors, swf file
Photoelectric effect A freshly polished, negatively charged zinc plate looses its charge if it is exposed to ultraviolet light. This phenomenon is called the photoelectric effect
Photo-electric effect study the photo-electric effect with three different materials, sodium, cesium, and silver
Photoelectric effect This applet shows you the effect of light on various metals, Photoelectric effect
Photoelectric effect Photoelectric effect
Photovoltaic Cells
Photovoltaic Cells Photovoltaic Cells
Photovoltaic Electricity This animation illustrates how a solar cell cut from a single crystal of Silicon is able to convert sunlight into electricity. The bottom layer is doped with a P type material such as Aluminum, Gallium or Indium to produce holes. The N type layer is doped with Phosphorous, Arsenic or Antimony to create mobile electrons
Solar cell animation Solar cell animation
Solar cell animation Alternative energy sources- Electricity by solar radiation
Solar cell operation Photovoltaic Electricity
Solar cell operation solar cells convert light energy into electrical energy either indirectly by first converting it into heat, or through a direct process known as the photovoltaic effect. The most common types of solar cells are based on the photovoltaic effect, which occurs when light falling on a two-layer semiconductor material produces a potential difference, or voltage, between the two layers
Solar Cell Operation Solar cells convert light energy into electrical energy either indirectly by first converting it into heat, or through a direct process known as the photovoltaic effect. The most common types of solar cells are based on the photovoltaic effect, which occurs when light falling on a two-layer semiconductor material produces a potential difference, or voltage, between the two layers
Solar cell demonstration applet
Solar cell simulator Solar cell simulator
Solar cells movie Watch an animation of a dye-sensitised cell in action, swf file
Solar installations Photo Voltaic (PV) cells
Solar battery how a Solar battery works, If light hits the semiconductor to which pn is connected, the hall and the electron appear, and it becomes a battery
Solar cell how a Solar cell works, Solar cell animation
Solar cell animation When energy is received from the sun in the form of photons, some of the photons are absorbed near the junction, freeing the electrons and holes in the silicon. The photons of light give enough energy for the electrons to cross the junction, where they can be picked up on the metal contacts on the surface of the solar cell and move through an external circuit. After moving through the external circuit and performing work (such as powering a lamp or motor) the electrons return to the solar cell
Solar cell animations and calculations
Solar Cells Photodiodes and solar cells work in the reverse sense to LEDs. If a photon of sufficient energy strikes the valence band in the transition region ( also known as the diffusion region ) of the diode, an electron can be promoted to the conduction band by the photoelectric effect leaving a hole in the valence band. The internal electric field ensures these separate and are available to an external circuit
Solar cells: animation Solar cells: animation
Solar cells: animation This interactive animation (a 2Mb Flash file) shows how PV works and how adjusting design parameters can affect energy output
Solar energy explained Solar energy explained
Solar Photovoltaic Cell Solar Photovoltaic Cell animation
The power of the sun The Science of the Silicon Solar Cell
Usefull calculators  related topic: Space and earth animations
Daylight Hours Explorer Shows the hours of daylight received during the year for an observer at a given latitude. This is an important factor contributing to the seasons
Light Rays The angle the light rays from the sun make with the surface of the earth is called the angle of incidence. When there is a large angle of incidence, the light rays are spread out over a large area. The strength of the incoming beam is weakened as far as a small portion of the surface is concerned. When the light bears straight down on a surface, it isn't spread out at all and the surface feels the full intensity of the beam
Motions of the Sun Simulator
PVGIS Solar Irradiance Data provides monthly and yearly averages of global irradiation at horizontal and inclined surfaces, as well as other climatic and PV-related data (Linke turbidity, ratio diffuse/global irradiation and optimum inclination angle of the surface)
Photovoltaic system calculator
Seasons and Ecliptic Simulator
Solar Calculations sun path calculator, XLS file
Solar Calculator Find Sunrise, Sunset, Solar Noon and Solar Position for Any Place on Earth
Sun & earth applet sunshine applet, this interactive applet displays the position of the sun on horizon for any date, time and location, and on a world map with day and night regions. The times of sunrise and sunset, the declination, the Greenwich hour angle of the sun and the equation of time are computed
Sun, moon & earth applet Sun, moon & earth applet, Shows how the phase of the moon depends on the viewing geometry by allowing the moon to be viewed from the earth, the sun, and an arbitrary point in space
Sun Motions Demonstrator Models the motions of the sun in the sky using a horizon diagram, demonstrating daily and seasonal changes in the sun's position
Sun path This applet models the Sun's path in a geocentric view, it calculates and visualizes the position of the Sun based on the latitude and the time. It allows to simulate the Sun's position and path during an hour, a day, a month and a year
Sun path chart program This program creates sun path charts in Cartesian coordinates for: (1) "typical" dates of each month (i.e.; days receiving about the mean amount of solar radiation for a day in the given month); (2) dates spaced about 30 days apart, from one solstice to the next; or (3) a single date you specify. You can select whether hours are plotted using local standard time or solar time, Solar radiation estimation, sun tracking software
Sun Path Graph Spreadsheet This Excel spreadsheet creates a graph of the sun's position for a given time of day and month of the year for a point on the earth's surface. This type of sunchart or sun path plot is commonly used for designing solar energy installations, XLS file
Sun position calculator Calculation of the position of the sun's position in the sky at one point on the earth at a particular time of day. The calculated data are: solar angle of zenith and declination angle, the time of rise set and noon, the daylight with the difference from the previous and later day. It also displays graphs of the solar path. Sun path charts can be plotted either in Cartesian (rectanglar) or Polar coordinates
Sun Position Autoupdate
Sunshine Applet
Sun View Applet Balegem: lat: 50 55' 17" N long: 03 47' 19" E (50.92142250544292, 3.788588047027588), Brussels: Latitude= 50.85 N; Longitude: 4.37 E
The Sun Position in the sky, Apparent motion, What time is it ?, Where are we ?
World Time Zone Calculator
World Map flash earth, Flash Earth is an experimental application for viewing satellite and aerial imagery of the Earth from multiple mapping websites inside a single Flash-based interface. It is not designed to be a fully-fledged mapping application but more for enjoying and exploring images of our planet, Latitude, Longitude, a tip

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Last updated on: 2011-01-02 | Copyright © 2011-2013 Educypedia.