Renewable energy Sources
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Solar energy is harnessed using photovoltaic (PV) cells which directly convert sunlight into electricity. The presentation provides an overview of how PV cells work, the different types of PV cells, their current and future applications, and some disadvantages. It aims to explain the use of PV cells and solar energy for various applications.
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solar cell
Solar cells convert sunlight into electricity through the photovoltaic effect. They are made from semiconducting materials like crystalline silicon that produce electricity when exposed to light. Maximum power point tracking (MPPT) is a technique used to extract the maximum possible power from solar panels by matching the panel voltage to the battery or load voltage. MPPT controllers sample the power output from solar panels and apply the proper resistance to obtain the maximum power point. Solar cell performance is affected by factors like irradiation levels and temperature, with characteristics like current, voltage, and power output varying under different conditions.
Solar cell
A basic presentation on Solar Cell, principle of Solar Cell, Types of Solar Cell and the advantage & disadvantage of solar cell with its application. The presentation is fully explained using diagram.
solar cell
A solar cell converts light directly into electricity via the photovoltaic effect. The operation of a solar cell requires 3 attributes: 1) absorption of light which generates electron-hole pairs, 2) separation of the opposite charge carriers, and 3) extraction of the separated carriers to an external circuit. Maximum power point tracking is a technique used in solar systems to extract the maximum possible power from photovoltaic modules by tracking the non-linear efficiency curve between solar irradiance, temperature, and resistance.
Solar Mobile Charger ppt
it is solar mobile charger presentation with 15 slide.
in this presentation i present some impotent things about solar mobile charger.
Solar mobile charger
Keeping our mobile phones alive is the most important task now a days, So here a small idea of charging mobile phones with help of renewal energy source.
solar mobile charger
This document presents a summary of a presentation on a solar mobile charger. It discusses how solar panels convert sunlight into electrical energy through the photovoltaic effect. A circuit diagram and working principle are provided showing how the solar energy is regulated to a stable 5V to charge mobile phones and other devices. The summary highlights key advantages like using a renewable energy source freely without maintenance, and disadvantages such as slower charging times compared to main chargers. Applications mentioned include charging small portable electronics and using public solar chargers installed in parks.
Full project
The document describes solar cells, solar lanterns, and their components and mechanisms. It discusses that solar cells convert sunlight directly into electricity through photovoltaic effect. Solar lanterns are portable standalone solar electric systems that consist of a solar photovoltaic module, battery, electronics, and compact fluorescent lamp housed in a plastic casing. The solar module charges the battery during the day which powers the lamp at night through an electronic circuit that regulates charging and inverts direct current for the light.
Solar cells or photo voltoic cells
Solar cells convert sunlight directly into electrical energy through the photovoltaic effect. They consist of layers of n-type and p-type semiconductors that form a p-n junction. When sunlight strikes the solar cell, photons are absorbed and release electrons that can be harvested as electric current. There are three main types of solar cells: monocrystalline silicon cells have the highest efficiency around 14-17%, polycrystalline silicon cells have an efficiency of 13-15%, and amorphous silicon cells have the lowest efficiency of 5-7%.
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solar cell
Solar cells convert sunlight into electricity through the photovoltaic effect. They are made from semiconducting materials like crystalline silicon that produce electricity when exposed to light. Maximum power point tracking (MPPT) is a technique used to extract the maximum possible power from solar panels by matching the panel voltage to the battery or load voltage. MPPT controllers sample the power output from solar panels and apply the proper resistance to obtain the maximum power point. Solar cell performance is affected by factors like irradiation levels and temperature, with characteristics like current, voltage, and power output varying under different conditions.
Solar cell
A basic presentation on Solar Cell, principle of Solar Cell, Types of Solar Cell and the advantage & disadvantage of solar cell with its application. The presentation is fully explained using diagram.
solar cell
A solar cell converts light directly into electricity via the photovoltaic effect. The operation of a solar cell requires 3 attributes: 1) absorption of light which generates electron-hole pairs, 2) separation of the opposite charge carriers, and 3) extraction of the separated carriers to an external circuit. Maximum power point tracking is a technique used in solar systems to extract the maximum possible power from photovoltaic modules by tracking the non-linear efficiency curve between solar irradiance, temperature, and resistance.
Solar Mobile Charger ppt
it is solar mobile charger presentation with 15 slide.
in this presentation i present some impotent things about solar mobile charger.
Solar mobile charger
Keeping our mobile phones alive is the most important task now a days, So here a small idea of charging mobile phones with help of renewal energy source.
solar mobile charger
This document presents a summary of a presentation on a solar mobile charger. It discusses how solar panels convert sunlight into electrical energy through the photovoltaic effect. A circuit diagram and working principle are provided showing how the solar energy is regulated to a stable 5V to charge mobile phones and other devices. The summary highlights key advantages like using a renewable energy source freely without maintenance, and disadvantages such as slower charging times compared to main chargers. Applications mentioned include charging small portable electronics and using public solar chargers installed in parks.
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The document describes solar cells, solar lanterns, and their components and mechanisms. It discusses that solar cells convert sunlight directly into electricity through photovoltaic effect. Solar lanterns are portable standalone solar electric systems that consist of a solar photovoltaic module, battery, electronics, and compact fluorescent lamp housed in a plastic casing. The solar module charges the battery during the day which powers the lamp at night through an electronic circuit that regulates charging and inverts direct current for the light.
Solar cells or photo voltoic cells
Solar cells convert sunlight directly into electrical energy through the photovoltaic effect. They consist of layers of n-type and p-type semiconductors that form a p-n junction. When sunlight strikes the solar cell, photons are absorbed and release electrons that can be harvested as electric current. There are three main types of solar cells: monocrystalline silicon cells have the highest efficiency around 14-17%, polycrystalline silicon cells have an efficiency of 13-15%, and amorphous silicon cells have the lowest efficiency of 5-7%.
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The document discusses photovoltaic or solar cells. It defines solar cells as semiconductor devices that convert light into electrical energy. The construction of a basic silicon solar cell is described, involving a p-type and n-type semiconductor material forming a PN junction. When light photons are absorbed by the semiconductor, electrons are energized and emitted, generating an electric current. Multiple solar cells can be connected in series, parallel or series-parallel combinations to increase output voltage and current. Applications of solar cells include solar power generation, heating, lighting, and powering small electronics. Advantages are environmental sustainability and low maintenance costs, while disadvantages include low efficiency and intermittency of solar energy.
Efisiensi solar cells
The document discusses photovoltaic (solar) cells and their efficiency. It explains that efficiency is the most important characteristic and is defined as the fraction of incident light energy converted to electrical energy. The efficiency depends on factors like the semiconductor material, device structure, temperature, and sun spectrum. It also notes that cost and lifetime are important beyond just efficiency alone. The document then examines I-V characteristics of solar cells and how efficiency is calculated using measurements of short circuit current, open circuit voltage, and maximum power point from the I-V curve. It provides an example calculation of efficiency for a specific solar cell operating under a resistive load.
Solar power packs
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Solar cell
Solar cell is the device that converts energy of light directly into electrical energy (electricity) by photovoltaic effect In general, a solar cell that includes both solar and non solar sources of light
(such as photons from incandescent bulbs) is termed a photovoltaic cell. Solar cell is also know as photovoltaic cell
Most familiar solar cells are based on the effect
of photovoltaic In this effect, light falling on semiconductor device of the two layer produces a potential difference or photo voltage between the layers The voltage thus produced can drive a current through an external circuit producing useful work
solar cell characteristics
This document discusses key parameters of solar cells such as open circuit voltage (Voc), short circuit current (Isc), fill factor (FF), and efficiency. It describes how these parameters are affected by factors like series resistance (Rs), shunt resistance (Rsh), and quantum efficiency. Voc is the maximum voltage produced at zero current, while Isc is the maximum current at zero voltage. FF accounts for non-idealities and is used to calculate the maximum power point. Rs and Rsh are parasitic resistances that lower FF. Quantum efficiency measures the number of carriers collected per photon over absorption and reflects losses from reflection and recombination.
Solar Mobile Charger PPT
This document describes the design of a solar-powered mobile phone charger. It begins with an introduction to solar cells and the photovoltaic effect. It then discusses the specifications of the charger, which uses a 5.5V/1000mA solar panel to output 300-550mA to charge a mobile phone in about 60 minutes. The document includes a block diagram and circuit diagram of the charger. It concludes that the solar charger provides ripple-free charging to increase battery life without developing high voltages.
photo voltaic 1
PV cells convert sunlight directly into electricity without moving parts. PV systems can be installed on rooftops and other structures. The sun is a nuclear fusion reactor that provides radiation energy, with only a small proportion reaching Earth's surface. Traditional energy sources like gas, oil and coal are finite, while sunlight reaching Earth could meet energy needs with only 0.01% utilization. PV cell performance is affected by factors like temperature, shading, and irradiance level, with output decreasing at higher temperatures. Different cell types have varying efficiencies depending on material used.
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This document presents a minor project synopsis for developing a solar power bank. It discusses using a solar panel and adjustable voltage regulator to charge a lead-acid battery. The objectives are to have adjustable output voltage, a simple and inexpensive circuit using commonly available components, and zero battery discharge when sunlight is not available. The expected outcomes are to reduce use of non-renewable energy by allowing portable energy storage from the sun that can be used when solar power is not available.
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SOLAR MOBILE CHARGER
This document discusses the design and specifications of a solar mobile phone charger. It begins with an introduction to solar cells and the photovoltaic process. It then provides details on the components used, including a high-efficiency mono-crystalline silicon solar panel rated at 5.5V/1000mA. The block diagram and circuit diagram are presented. Applications and advantages include portable power generation with no emissions. Disadvantages include high initial cost and inability to store power. The conclusion notes benefits such as increased battery life and lack of ripples when using direct DC charging from the solar panel.
PhotoVoltaic Cell
Photovoltaic cells convert sunlight directly into electricity by utilizing the photovoltaic effect in a silicon PN junction diode. They are made extremely thin so that incident light photons may easily reach the PN junction and develop a voltage of 0.5-1 Volt and a current density of 20-40mA/cm2. India's largest solar parks include the Bhadla Solar Park in Rajasthan with a capacity of 2.255 MW, the Kamuthi Solar Power Project in Tamil Nadu which is the world's largest single location solar power plant with 648 MW capacity, and the Charanka Solar Park in Gujarat which is Asia's biggest solar park spread across 5,384 acres of unused
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This document describes a solar charger called Solarclip that has improvements over most other solar chargers on the market. Solarclip has both a reasonably sized solar panel and battery storage, allowing it to collect and store enough energy to continuously charge devices even when sunlight is intermittent or unavailable. This integrated solar power and battery storage allows Solarclip to sustain a continuous charging rate for mobile phones, even on cloudy days, whereas most other solar chargers cannot due to their lack of battery backup. Solarclip is designed for daily use by people who use clipboards and smartphones as part of their work.
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Solar cell
This document discusses solar cells, also known as photovoltaic cells. It begins with an introduction and overview of solar cells and their working principle. It then describes in more detail how solar cells work, using silicon doped with phosphorus and boron to create an electric field that generates electricity when struck by photons. The document outlines the benefits of solar cells like being renewable and environmentally friendly. It also discusses applications such as rural electrification and powering satellites. Finally, it notes some disadvantages such as high initial costs and dependence on sunlight.
Solar Cells
A solar cell (also called photovoltaic cell) is a electrical device that converts the energy of light directly into electricity by the photovoltaic effect.
Design photovoltaic system
This document provides details about a graduation project on designing a photovoltaic system. It includes an introduction to solar photovoltaic technology and solar radiation in Palestine. Some key points covered are:
- Palestine has high solar potential with over 2800 sunshine hours per year and average daily solar radiation of 5.46 kWh/m2.
- Components of a photovoltaic system include solar modules, charge controllers, inverters, batteries and loads.
- Types of photovoltaic cells include crystalline (mono and polycrystalline) and thin film technologies like CIGS, CIS and CdTe.
- Factors that affect solar energy generation are solar radiation and temperature
Interferometer
This document describes a $5 interferometer device that was constructed using inexpensive parts including a silicone photocell, microscope slide, amplifier/speaker, and HeNe laser. The photocell was affixed and mounted to detect light interference patterns from the laser beam split by the microscope slide, with the photocell connected to the amplifier to make the interference patterns audible.
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The document discusses photovoltaic (solar) cells and their efficiency. It explains that efficiency is the most important characteristic and is defined as the fraction of incident light energy converted to electrical energy. The efficiency depends on factors like the semiconductor material, device structure, temperature, and sun spectrum. It also notes that cost and lifetime are important beyond just efficiency alone. The document then examines I-V characteristics of solar cells and how efficiency is calculated using measurements of short circuit current, open circuit voltage, and maximum power point from the I-V curve. It provides an example calculation of efficiency for a specific solar cell operating under a resistive load.
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Solar cell is the device that converts energy of light directly into electrical energy (electricity) by photovoltaic effect In general, a solar cell that includes both solar and non solar sources of light
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Most familiar solar cells are based on the effect
of photovoltaic In this effect, light falling on semiconductor device of the two layer produces a potential difference or photo voltage between the layers The voltage thus produced can drive a current through an external circuit producing useful work
solar cell characteristics
This document discusses key parameters of solar cells such as open circuit voltage (Voc), short circuit current (Isc), fill factor (FF), and efficiency. It describes how these parameters are affected by factors like series resistance (Rs), shunt resistance (Rsh), and quantum efficiency. Voc is the maximum voltage produced at zero current, while Isc is the maximum current at zero voltage. FF accounts for non-idealities and is used to calculate the maximum power point. Rs and Rsh are parasitic resistances that lower FF. Quantum efficiency measures the number of carriers collected per photon over absorption and reflects losses from reflection and recombination.
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This document describes the design of a solar-powered mobile phone charger. It begins with an introduction to solar cells and the photovoltaic effect. It then discusses the specifications of the charger, which uses a 5.5V/1000mA solar panel to output 300-550mA to charge a mobile phone in about 60 minutes. The document includes a block diagram and circuit diagram of the charger. It concludes that the solar charger provides ripple-free charging to increase battery life without developing high voltages.
photo voltaic 1
PV cells convert sunlight directly into electricity without moving parts. PV systems can be installed on rooftops and other structures. The sun is a nuclear fusion reactor that provides radiation energy, with only a small proportion reaching Earth's surface. Traditional energy sources like gas, oil and coal are finite, while sunlight reaching Earth could meet energy needs with only 0.01% utilization. PV cell performance is affected by factors like temperature, shading, and irradiance level, with output decreasing at higher temperatures. Different cell types have varying efficiencies depending on material used.
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The document discusses a student's new product development strategy for a solar mobile charger. It provides background on solar cells and how they work using the photovoltaic effect to convert sunlight into electricity. It then describes the specifications of the proposed solar panel and charger, including its 5.5V/1000mA output that can fully charge a typical mobile phone in about 60 minutes using power from 4 connected solar panels.
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PhotoVoltaic Cell
Photovoltaic cells convert sunlight directly into electricity by utilizing the photovoltaic effect in a silicon PN junction diode. They are made extremely thin so that incident light photons may easily reach the PN junction and develop a voltage of 0.5-1 Volt and a current density of 20-40mA/cm2. India's largest solar parks include the Bhadla Solar Park in Rajasthan with a capacity of 2.255 MW, the Kamuthi Solar Power Project in Tamil Nadu which is the world's largest single location solar power plant with 648 MW capacity, and the Charanka Solar Park in Gujarat which is Asia's biggest solar park spread across 5,384 acres of unused
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This document discusses solar cells, also known as photovoltaic cells. It begins with an introduction and overview of solar cells and their working principle. It then describes in more detail how solar cells work, using silicon doped with phosphorus and boron to create an electric field that generates electricity when struck by photons. The document outlines the benefits of solar cells like being renewable and environmentally friendly. It also discusses applications such as rural electrification and powering satellites. Finally, it notes some disadvantages such as high initial costs and dependence on sunlight.
Solar Cells
A solar cell (also called photovoltaic cell) is a electrical device that converts the energy of light directly into electricity by the photovoltaic effect.
Design photovoltaic system
This document provides details about a graduation project on designing a photovoltaic system. It includes an introduction to solar photovoltaic technology and solar radiation in Palestine. Some key points covered are:
- Palestine has high solar potential with over 2800 sunshine hours per year and average daily solar radiation of 5.46 kWh/m2.
- Components of a photovoltaic system include solar modules, charge controllers, inverters, batteries and loads.
- Types of photovoltaic cells include crystalline (mono and polycrystalline) and thin film technologies like CIGS, CIS and CdTe.
- Factors that affect solar energy generation are solar radiation and temperature
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The document discuss about the hospitals and it's organization .
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(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
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