Solar furnaces use arrays of mirrors to concentrate sunlight and produce extremely high temperatures, as high as 3500°C. They have been experimented with since the 1770s but the first modern solar furnace was built in France in 1949. Solar furnaces use plane and parabolic mirrors - plane mirrors direct sunlight to parabolic mirrors which focus the beams. They can be used for industrial processes like metalworking but have limitations due to their size and placement requirements. Further research may help improve the technology and lower costs.
This Slide is made of Basic Information on Solar Power.
Actually , this slide was made for my University Presentation.
I hope, after watching this slide , you will get some basic information about Solar Power.
What is solar energy?
Types of solar energy
Solar thermal energy
Photovatic energy (PV)
How are solar panels made?
How does solar energy works?
Uses of solar energy
Strenghts of solar energy
Weakness of solar energy
Opportunites of solar energy
Threats of solar energy
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
seminar topics for mechanical engineers
civil engineering ppt
latest civil engineering seminar topics
This Slide is made of Basic Information on Solar Power.
Actually , this slide was made for my University Presentation.
I hope, after watching this slide , you will get some basic information about Solar Power.
What is solar energy?
Types of solar energy
Solar thermal energy
Photovatic energy (PV)
How are solar panels made?
How does solar energy works?
Uses of solar energy
Strenghts of solar energy
Weakness of solar energy
Opportunites of solar energy
Threats of solar energy
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
seminar topics for mechanical engineers
civil engineering ppt
latest civil engineering seminar topics
In presentation photovoltaic effect, solar cell material, types of solar cell, working principle, solar pv module, PV systems, Sizing of solar PV system etc are included.
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.
In spite of the high cost of solar technologies and policy of government, investment in the solar power generation is the good pay off due to the noise free and pollution free solar energy.
Les concepts et formules de base sont établis au niveau d'un enseignement du secondaire. Cette matière est probablement la principale difficulté rencontrée par les élèves.
In presentation photovoltaic effect, solar cell material, types of solar cell, working principle, solar pv module, PV systems, Sizing of solar PV system etc are included.
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.
In spite of the high cost of solar technologies and policy of government, investment in the solar power generation is the good pay off due to the noise free and pollution free solar energy.
Les concepts et formules de base sont établis au niveau d'un enseignement du secondaire. Cette matière est probablement la principale difficulté rencontrée par les élèves.
Fabrication of prototype of stirling engineRavi Shekhar
This was the hardware project presentation prepared by our team on Stirling Engine during second year at VIT University Vellore. This was prototype of an SFA Stirling Engine.
This presentation explains how to improve energy efficiency of industrial furnaces. It was prepared for energy auditor training in Nepal in the context of GIZ/NEEP programme. For further information go to EEC webpage: http://www.eec-fncci.org
Solar collector : A device designed to absorb incident solar radiation and to transfer the energy to a fluid passing in contact with it, usually liquid or air.
Flat – Plate Collector : A typical flat-plate collector is an insulated metal box with a glass or plastic cover (called the glazing) and a dark-colored absorber plate. These collectors heat liquid or air at temperatures less than 180°F.
A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas (the working fluid) at different temperatures, such that there is a net conversion of heat energy to mechanical work. More specifically, a closed-cycle regenerative heat engine with a permanently gaseous working fluid.
Improvements in efficiency of solar parabolic troughIOSR Journals
Solar energy is primary source of all type of energy which is present in nature i.e. all the energy
derived from it. So, direct utilization of solar energy into useful energy is important. There are so many solar
thermal equipments in which concentrating type collector heated the fluid up to 100 to 4000C. It is employed for
a variety of applications such as power generation, industrial steam generation and hot water production.
Parabolic trough collector is preferred for steam generation because high temperatures can achieve.
Cylindrical parabolic trough type collector consists of selective concentrator and a receiver tube. The
selective cover system prevents the heat loss (convective and radiative) from the receiver tube and improves the
performance of solar parabolic trough. Also evacuated chamber is created to reduce the loss of heat and reduce
the corrosion of concentrator surface. Tracking system is embedded in the solar parabolic trough for tracking
the sun energy movement.
This report presents the evaluation of solar insolation in terms of monthly average hourly global
radiation in Patna on 10th April, 2013. On the basis of this solar energy flux, comparative study of the
instantaneous efficiency of solar parabolic trough is done. Here four different types of cover system are
mathematically analyzed. (i) Single glass cover on receiver (ii) Double glass cover on receiver (iii) Single glass
cover on aperture (iv)Double glass cover on aperture. This report contains many graphs to illustrate the effect
on instantaneous efficiency on variation of primary parameter. With the help of MATLAB R201a software
mathematical calculation is obtained.
Studying & Evaluating the Performance of Solar Box Cookers (Untracked)ijceronline
The primary aim of this study was to conduct the performance evaluation on solar cooker design. The secondary aim was to build and developing of a new and efficient solar cooker design. A direct solar box cooker (Untracked type) was tested in this study with low cost feature and low technology. The testing for the solar box cooker was conducted at the top roof of Material Engineering Department building. In this test, three water quantities (1.5, 1 and 0.5 kg) were used in order to find the effect of the mass quantity of cooking food on the temperature rise inside the solar cooker. The results showed that the attainable temperature reached a maximum cooking temperature of (81.6 oC) for water mass quantity of (1000 grams) with temperature difference between the cooking temperature and the ambient temperature of (61.5 oC). But a lower maximum temperature (81.7 oC) for (500 grams) the reason for that is due the lower solar intensity during the test of partially cloudy day. As a conclusion, it was found that as the solar intensity increases the cooking temperature increases too. The other factor which influences the cooking temperature is the cooking mass as the cooking mass increases the cooking temperature decreases. Although the cooking temperature increases but the standardized Power decreases, this is because the increasing in cooking temperature is not equalizing or go in parallel with the decreasing in cooking mass, thus it is preferable to use solar cooker for adequate cooking mass quantity to get a high merit or advantage solar cookers.
Solar to energy presentation geofrey yatorGeofrey Yator
Solar to energy conversion.The definition,need for,technologies and the Future of solar energy in the planet earth.
The article is presented by Geofrey Kibiwott yator University of Eldoret.
different types of solar cooker,parabolic solar cooker largest solar steam cooking plant in INDIA at SHIRDI ,parabolic solar cooker stirling engine,steam cooking by parabolic reflectors at MOUNT ABU RAJISTHAN ,INDIA
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...Wasswaderrick3
In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
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.
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.
Salas, V. (2024) "John of St. Thomas (Poinsot) on the Science of Sacred Theol...Studia Poinsotiana
I Introduction
II Subalternation and Theology
III Theology and Dogmatic Declarations
IV The Mixed Principles of Theology
V Virtual Revelation: The Unity of Theology
VI Theology as a Natural Science
VII Theology’s Certitude
VIII Conclusion
Notes
Bibliography
All the contents are fully attributable to the author, Doctor Victor Salas. Should you wish to get this text republished, get in touch with the author or the editorial committee of the Studia Poinsotiana. Insofar as possible, we will be happy to broker your contact.
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...Ana Luísa Pinho
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...University of Maribor
Slides from talk:
Aleš Zamuda: Remote Sensing and Computational, Evolutionary, Supercomputing, and Intelligent Systems.
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Inter-Society Networking Panel GRSS/MTT-S/CIS Panel Session: Promoting Connection and Cooperation
https://www.etran.rs/2024/en/home-english/
2. Sun: Power house of the
solar system
The Sun is by far the largest object in the solar system. It contains
more than 99.8% of the total mass of the Solar System (Jupiter
contains most of the rest).
diameter: 1,390,000 km.
mass: 1.989e30 kg
temperature: 5800 K (surface) 15,600,000 K (core)
The sun’s energy output (3.86 x10 26Watts) is produced by nuclear
fusion reaction.
The sun [8]
3. What are solar furnaces?
Solar furnace is a device that uses an array of mirrors to redirect
and concentrate the sun’s rays onto a small surface area thus
producing extremely high temperature.
The temperature can go as high as 3500o C.
http://stwww.weizmann.ac.il
4. History of Solar furnaces
Legend claims that Archimedes used polished shields to
concentrate sunlight on the invading Roman fleet and repel
them from Syracuse.
Archimedes “heat ray” gun. (a legend only)[1]
5. History of Solar furnaces
cont’d
By focusing sunlight over flammable materials using lenses,
combustion was generated, experiment conducted by
Lavoisier Circa 1770s.
The French chemist Lavoisier experimented with concentrating
solar energy using a large parabolic mirror.[1]
6. History of Solar furnaces
cont’d
In 1861, Mouchout developed a steam engine powered entirely by
the sun. He produced the first solar steam engine in history in
1866 by using a parabolic trough.
7. History of Solar furnaces
cont’d
The solar furnace in Mont Louis, France, built in 1949 by
Professor Félix Trombe, was the first solar furnace in the
world.
In 1993,the solar furnace was used for industrial and
manufactured products such as the firing of ceramics, and
bronze and aluminum products.
The solar furnace in Mont Louis [5]
8. Fundamental of Spherical
mirror
A spherical mirror is a mirror which has the shape of a piece
cut out of a spherical surface. There are two types of
spherical mirrors: concave, and convex.
Image formation by a concave mirror[2]
9. How solar furnaces work?
The operation principle of a solar furnace is quite simple. It
entails the use of two mirrors, plane mirror and parabolic
mirror. The plane mirror is known as Heliostat and is angled
such that it directs parallel beam of light to the parabolic
mirror. The parabolic mirror then brings the light beam to
focus at the focal point.
When the number of mirrors is increased, then it is possible
to achieve energy and heat levels where one can actually boil
water, cook food or even melt metals!. The amount of energy
and efficiency of the solar furnace relay completely on how
accurate the mirrors are focused on one point.
11. Types of solar furnaces
There are two types of solar furnaces:
Direct solar furnace
Heliostat solar furnace
12. General uses of solar furnaces
Running Steam Turbines for Solar Power Plants
Cook Food and Boil Water in a Solar Oven
Produce Hydrogen Fuel
Perform Scientific Experiments Which Require Extreme
Temperatures Without Pollution
Reduce the Need to Burn Fossil Fuels
Reduce the Need to Cut Down Forests For Firewood
13. Application of solar furnaces in
Africa
Domestic uses
− Cooking
− Heating of water
Agricultural uses
− Drying of farm produce
− Incubation of chicken
Industrial uses
− Recycling of waste
− Welding of machine parts
14. Application of solar furnaces in
Africa
Small natural convection solar dryer design.[4]
15. Impact of Solar furnaces in Africa
Environment
− Prevention of desert encroachment
− Decrease in overdependence of fossil fuel
− Global warming
Economic
− Recycling of waste
− Recycling of metal scrap
sun’s rays are focused on the crucible holding the
ore [3]
17. State of art designs of solar furnaces
high power concentrated solar power stations [9]
18. Prospect of solar furnaces
It is believed that solar furnaces can be used in manufacturing
in the production of aerospace products, defense products, and
in electronics.
Solar furnaces also could be used to break down and destroy
toxic waste.
In these uses the highflux solar furnace would replace laser
furnaces and furnaces using fossil fuels.
Solar furnace application can be expanded to metallurgical
industries
19. Limitation of Solar furnace
Solar furnace technology has existed for many years but has never
been fully explored or used on a widespread commercial basis.
It is unclear if solar furnaces will ever be used on any type of scale
because of the limitations in their placement and use.
Large solar concentrators are expensive.
They occupy large amount of space
20. Innovative Ideas
Solar energy can be used in baking of pastries.
It can also be used in firing earthware materials like
clay pots e.t.c
More awareness must be created to enlighten people
on the usage and advantages of solar furnace.
21. Conclusion
Solar furnace technology has existed for many years but never
has been fully explored or used on a widespread commercial
basis.
It is unclear if solar furnaces will ever be used on any type of
scale because of the limitations in their placement and use.
However, with research and development, there could be
breakthroughs that will improve the technology and/or lower the
cost.