This document discusses different forms of energy and solar energy specifically. It covers:
1) The different forms of energy including kinetic, heat, chemical, electrical, sound, and nuclear energy. Energy can change forms but cannot be created or destroyed.
2) How solar energy works, from the photons emitted by the sun being absorbed by solar cells to generate electricity via the photoelectric effect.
3) The two main uses of solar energy - generating electricity using photovoltaic panels and getting heat from the sun for applications like drying crops. Solar energy is a renewable resource but production stops at night.
This presentation looks at solar energy as an alternative source of cheap and readily available source of energy. It convers the basics of this energy source including the advantages and the disadvantages of solar energy. It also further touches on the availability of the energy source in comparison to other sources of energy.
Solar energy technologies refer primarily to the use of solar radiation for practical ends. All other renewable energies other than geothermal derive their energy from energy received from the sun.
Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute sunlight. Active solar techniques include the use of photovoltaic modules (also called photovoltaic panels) and solar thermal collectors (with electrical or mechanical equipment) to convert sunlight into useful outputs. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.
Solar energy is radiant light and heat from the Sun harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture and artificial photosynthesis
Solar energy is radiant light and heat from the Sun harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture and artificial photosynthesis.
This presentation looks at solar energy as an alternative source of cheap and readily available source of energy. It convers the basics of this energy source including the advantages and the disadvantages of solar energy. It also further touches on the availability of the energy source in comparison to other sources of energy.
Solar energy technologies refer primarily to the use of solar radiation for practical ends. All other renewable energies other than geothermal derive their energy from energy received from the sun.
Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute sunlight. Active solar techniques include the use of photovoltaic modules (also called photovoltaic panels) and solar thermal collectors (with electrical or mechanical equipment) to convert sunlight into useful outputs. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.
Solar energy is radiant light and heat from the Sun harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture and artificial photosynthesis
Solar energy is radiant light and heat from the Sun harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture and artificial photosynthesis.
Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis.
Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis.
Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis. It is an important source of renewable energy and its technologies are broadly characterized as either passive solar or active solar depending on how they capture and distribute solar energy or convert it into solar power.
what is solar energy definition
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1981: A 90.4-kW PV system was dedicated at Lovington Square Shopping Center (New Mexico) using Solar Power Corp. modules. A 97.6-kW PV system was dedicated at Beverly High School in Beverly, Massachusetts, using Solar Power Corp. modules. An 8-kW PV-powered (Mobil Solar), reverse-osmosis desalination facility was dedicated in Jeddah, Saudi Arabia. 1984: The IEEE Morris N. Liebmann Award was presented to Drs. David Carlson and Christopher Wronski at the 17th Photovoltaic Specialists Conference, "for crucial contributions to the use of amorphous silicon in low-cost, high-performance photovoltaic solar cells." 1991: The Solar Energy Research Institute was redesignated as the U.S. Department of Energy's National Renewable Energy Laboratory by President George Bush. 1993: The National Renewable Energy Laboratory's Solar Energy Research Facility (SERF), opened in Golden, Colorado. 1996: The U.S. Department of Energy announces the National Center for Photovoltaics, headquartered in Golden, Colorado.
Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis.
Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis.
Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis. It is an important source of renewable energy and its technologies are broadly characterized as either passive solar or active solar depending on how they capture and distribute solar energy or convert it into solar power.
what is solar energy definition
10 advantages of solar energy
what is solar energy kids
what is solar energy system
what is solar power definition
facts about solar energy
use of solar energy
solar energy information
interesting civil engineering topics
seminar topics pdf
civil engineering topics for presentation
civil seminar topics ppt
best seminar topics for civil engineering
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1981: A 90.4-kW PV system was dedicated at Lovington Square Shopping Center (New Mexico) using Solar Power Corp. modules. A 97.6-kW PV system was dedicated at Beverly High School in Beverly, Massachusetts, using Solar Power Corp. modules. An 8-kW PV-powered (Mobil Solar), reverse-osmosis desalination facility was dedicated in Jeddah, Saudi Arabia. 1984: The IEEE Morris N. Liebmann Award was presented to Drs. David Carlson and Christopher Wronski at the 17th Photovoltaic Specialists Conference, "for crucial contributions to the use of amorphous silicon in low-cost, high-performance photovoltaic solar cells." 1991: The Solar Energy Research Institute was redesignated as the U.S. Department of Energy's National Renewable Energy Laboratory by President George Bush. 1993: The National Renewable Energy Laboratory's Solar Energy Research Facility (SERF), opened in Golden, Colorado. 1996: The U.S. Department of Energy announces the National Center for Photovoltaics, headquartered in Golden, Colorado.
Solar technology has been evolving since its inception. However slow, yet steady and significant. Let’s discuss how solar technology has progressed over the years in detail.
I am Amar Bariya and I am presenting here a presentation on simple introduction of Solar energy. And you can also use this knowledge in your day to day life else in your educational knowledge. It's a very vast area and just boost up your knowledge in renewable energy harvesting sector.
This is a presentation on Solar Power Generation .We believe Solar to be the most sustainable sector in the renewable energies space. AcornSolar promotes On-Grid and Off-Grid solutions in both domestic as well as industrial sectors.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Toxic effects of heavy metals : Lead and Arsenicsanjana502982
Heavy metals are naturally occuring metallic chemical elements that have relatively high density, and are toxic at even low concentrations. All toxic metals are termed as heavy metals irrespective of their atomic mass and density, eg. arsenic, lead, mercury, cadmium, thallium, chromium, etc.
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
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Monitor common gases, weather parameters, particulates.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
3. Forms of Energy
• Energy has a number of different forms, all of which measure the ability
of an object or system to do work on another object or system. Here are
the different basic forms:
Kinetic Energy.
Heat energy.
Chemical Energy.
Electrical Energy.
Sound Energy.
Nuclear Energy. 3
4. 4
Energy cannot be destroyed or created.
Energy can be changed from one form to another.
Burning match: chemical to heat and light.
Portable torch: chemical to heat and light.
Microphone: sound to electrical.
Radio: electrical to sound and heat.
Television: electrical to sound and light and heat.
Catapult: elastic to kinetic and heat.
Mobile phone: chemical to sound and microwaves
(EM radiation) and heat.
Car: chemical to kinetic and sound and heat.
5. In every transformation from a form to
another, there is a lose in the energy.
• Energy is measured in (The unit of energy) Joules (J).
• We define term “Efficiency” as
Useful energy transferred by a device
Total energy supplied to a device
× 100
• Also, we define term “Power” as the energy (work) per unit time.
• Power is measured in Walt (W).
1 Walt means 1J per 1 sec
5
6. Inside a fossil fuel power station
6
The national grid
How do we get the electricity?
7. We can get the energy from
• Coal (The most unfriendly-enviro resource)
• Earth (From hot rocks deep inside the Earth)
• Water (Generating energy by waves)
• Sun (Using solar cells; our lecture )
• Wind (The amount of energy depends on the amount of
wind, using an electricity generator on top of a tall tower).
7
10. The Sun
•The Sun is the original source of most energy
resources.
•Plants store the Sun’s energy through
photosynthesis. Animals then eat the plants.
10
11. Light to Electricity ... How?
In 1905, Albert Einstein solved this
apparent paradox by describing light as
composed of discrete quanta, now called
photons. A photon above a threshold
frequency has the required energy to
eject a single electron, creating the
observed effect.This discovery led to the
quantum revolution in physics and
earned Einstein the Nobel Prize in
Physics in 1921.
11
12. Scientists used the
idea of photoelectric
effect to make
electrons emitted
from the surface of
the materials.
Using the waves that
come from the sun,
we can generate
current.
12
13. Why Sun?!
• Solar energy is the radiation from the Sun that reaches Earth. It powers
photosynthesis in green plants and is ultimately the source of all food and
fuel.
• The amount of solar energy that strikes the Earth each day is 10,000 to
15,000 times greater than our daily energy needs.
13
14. For hundreds of years, people have wanted to harness
the sun’s power for weapons, heating, and many other
uses to make their lives more comfortable.
14
15. Meanwhile, there is one energy source that is free and
inexhaustible. It’s like a giant nuclear reactor – only this
one is located 93 million miles away. It is calledThe Sun
• The first solar water heating collector appears to have been built in the 18th
Century by a Swiss scientist who constructed a simple wooden box with a
glass top and a black base. It trapped solar energy, and the collector
reached a temperature of 190 degrees Fahrenheit
15
16. Types of solar cells
1.Solar-
generated
electricity -
Photovoltaics
(PV)
• First is solar-generated electricity.
• Photovoltaics are solar cells that convert sunlight to
D.C. electricity.
• The solar cells in a PV module are made from
semiconductor materials.
• Electrical conductors attached to the positive and
negative sides of the material allow the electrons to be
captured in the form of a D.C. current.
• This electricity can then be used to power a load, such
as a water pump, or it can be stored in a battery.
16
17. Uses of PV
• In fact, water pumping is one of
the simplest and most appropriate
uses for photovoltaics. From crop
irrigation to stock watering to
domestic uses, photovoltaic-
powered pumping systems meet a
broad range of water needs. Most
of these systems have the added
advantage of storing water for use
when the sun isn’t shining,
eliminating the need for batteries,
enhancing simplicity and reducing
overall system costs. 17
18. Types of solar cells
2. Getting heat
from the sun
• Drying crops and grains by simply exposing them to
the heat of the sun is one of the oldest and most widely
used applications of solar energy. But allowing crops to
dry naturally in the field exposes them to the elements
and contamination as well as birds and insects.
• Another use of solar energy for higher agricultural
productivity is water heating particularly in livestock
operations.
18
21. Efficiency
of a solar
cell
• Solar cells suffer from a low efficiency.This is
because only light with enough energy causes
an electron to be released which is only about
25% of all sunlight.
• The amount of electricity a solar panel can
produce depends on two factors: its surface
area and the light intensity.
• Producing enough electricity to power a town
would require a very large area of solar panels
but covering the roof of a house can meet the
annual electricity needs of the household.
21
22. Problems of solar cells
Simply, the is no sun at
night
Then, they do not produce
electricity at night.
22