This document discusses superconductors and superconductivity. It begins by defining a superconductor as a material that loses all electrical resistance below a critical temperature. Two types of superconductors are described - Type I, which exhibit the Meissner effect, and Type II, which do not. Low and high temperature superconductors are distinguished based on the coolant used. Key properties of superconductors include zero resistance, effects of impurities and isotopes on critical temperature, critical magnetic and current fields, and the Meissner effect. Applications of superconductors include power transmission, generators, ore separation, and computing.
Basically i have tried giving every details about the phenomenon Superconductivity in the simplest way. This is my first upload.I'll be very glad if u all give your valuable feedback. Thank u.
Topic: Superconductors and their real life applications as a theory of knowledge
Type: Essay
Subject: Physics
Academic Level: Undergraduate 1-2
Style: MLA
Language: English (U.S)
Number of Pages: 6 (double-spaced, Times New Roman, Font 12)
Number of sources: 5
Task Details:
1) Define superconductors;
2) Discuss their properties;
3) Describe how they can be utilized to solve various real life problems.
Super conductors,properties and its application and BCS theorysmithag7
superconductors:-Introduction, definition, type1,type2 and atypical. Preparation of high temperature super conductor-Y1 Ba2Cu3Ox±δ, BCS theory and general application of high temperature super conductors.
Basically i have tried giving every details about the phenomenon Superconductivity in the simplest way. This is my first upload.I'll be very glad if u all give your valuable feedback. Thank u.
Topic: Superconductors and their real life applications as a theory of knowledge
Type: Essay
Subject: Physics
Academic Level: Undergraduate 1-2
Style: MLA
Language: English (U.S)
Number of Pages: 6 (double-spaced, Times New Roman, Font 12)
Number of sources: 5
Task Details:
1) Define superconductors;
2) Discuss their properties;
3) Describe how they can be utilized to solve various real life problems.
Super conductors,properties and its application and BCS theorysmithag7
superconductors:-Introduction, definition, type1,type2 and atypical. Preparation of high temperature super conductor-Y1 Ba2Cu3Ox±δ, BCS theory and general application of high temperature super conductors.
Properties of superconductors, Effects of the magnetic field, variation of resistance with temperature, Meissner Effect, isotope effect, Energy Gap, Coherence Length, BCS Theory, Types of superconductors ,
Lattice Energy LLC- High-temperature Superconductivity in Patches-Aug 23 2012Lewis Larsen
Certain published experimental data suggests that some form of high temperature superconductivity (HTSC) may be occurring in Widom-Larsen many-body patches of protons and SP electrons found in LENR systems. While not widely known or accepted, controversial experimental data collected and published by Tripodi et al., if correct, suggests that even room temperature superconductivity (RTSC) might be possible, at least in PdHx superconducting systems. If HTSC or RTSC truly does occur in W-L heavy-electron patches, although it shares some common characteristics with Type-2 superconductors, it differs in many key ways. For example, ‘normal’ lattice electron-phonon interactions seem unlikely to be involved in facilitating formation of Cooper pairing in a W-L patch’s SP electron subsystem. Instead, it seems like, during brief attoseconds of collective proton coherence, the many-body collective proton subsystem somehow functions as a local ‘lattice’ (a la a dynamic Coulomb crystal???). Viewed in that manner, a many-body proton subsystem’s electromagnetic and Q-M interactions with a patch’s many-body SP electron subsystem might then be able to provide a local environment conducive to electron pairing therein. Perhaps a patch’s two subsystems form dynamic, mutually reinforcing ‘mirror quantum condensates’ as conceptualized on Slide #81 herein. Hopefully, subject matter experts will study these new theoretical ideas to see whether they might lead to additional fruitful insights.
The interest in superconducting systems stems from their promise to be more efficient, smaller, and lighter than those made from conventional conductors. The types of applications in which superconductivity has the potential to be effective in an electric power system can be separated into two general classes. The first type includes those technologies in which superconductivity is simply a replacement of existing resistive materials, for example, cables, motors, generators, and transformers.
The second type includes technologies that will be enabled by superconductivity and that have little or, at most, limited capability if conventional resistive or other materials are used. Examples are superconducting magnetic energy storage (SMES) and large fault current limiters (FCL). Before looking at the applications under development the article discusses the discovery and development of superconductivity.
Presentation eloquently present application and fundamentals of Superconductors. It also covers strategy and priority in superconductivity technology. vivekbhartiyahcu@gmail.com
Properties of superconductors, Effects of the magnetic field, variation of resistance with temperature, Meissner Effect, isotope effect, Energy Gap, Coherence Length, BCS Theory, Types of superconductors ,
Lattice Energy LLC- High-temperature Superconductivity in Patches-Aug 23 2012Lewis Larsen
Certain published experimental data suggests that some form of high temperature superconductivity (HTSC) may be occurring in Widom-Larsen many-body patches of protons and SP electrons found in LENR systems. While not widely known or accepted, controversial experimental data collected and published by Tripodi et al., if correct, suggests that even room temperature superconductivity (RTSC) might be possible, at least in PdHx superconducting systems. If HTSC or RTSC truly does occur in W-L heavy-electron patches, although it shares some common characteristics with Type-2 superconductors, it differs in many key ways. For example, ‘normal’ lattice electron-phonon interactions seem unlikely to be involved in facilitating formation of Cooper pairing in a W-L patch’s SP electron subsystem. Instead, it seems like, during brief attoseconds of collective proton coherence, the many-body collective proton subsystem somehow functions as a local ‘lattice’ (a la a dynamic Coulomb crystal???). Viewed in that manner, a many-body proton subsystem’s electromagnetic and Q-M interactions with a patch’s many-body SP electron subsystem might then be able to provide a local environment conducive to electron pairing therein. Perhaps a patch’s two subsystems form dynamic, mutually reinforcing ‘mirror quantum condensates’ as conceptualized on Slide #81 herein. Hopefully, subject matter experts will study these new theoretical ideas to see whether they might lead to additional fruitful insights.
The interest in superconducting systems stems from their promise to be more efficient, smaller, and lighter than those made from conventional conductors. The types of applications in which superconductivity has the potential to be effective in an electric power system can be separated into two general classes. The first type includes those technologies in which superconductivity is simply a replacement of existing resistive materials, for example, cables, motors, generators, and transformers.
The second type includes technologies that will be enabled by superconductivity and that have little or, at most, limited capability if conventional resistive or other materials are used. Examples are superconducting magnetic energy storage (SMES) and large fault current limiters (FCL). Before looking at the applications under development the article discusses the discovery and development of superconductivity.
Presentation eloquently present application and fundamentals of Superconductors. It also covers strategy and priority in superconductivity technology. vivekbhartiyahcu@gmail.com
The fascinating phenomenon of superconductivity and its potential applications have attracted the attention of scientists, engineers and businessmen.
Superconductivity was discovered in 1911 by Heike Kamerlingh Onnes, as he studied the properties of metals at low temperatures.
SUPERCONDUCTIVITY BY SATYAAPTRAKASH.pptxPokeDSatya
Superconductivity presentation ppt on the presentation of HIL ok sir thank you so much sir thank thank God for friendly and Goddess are you still have a great you more than one of the mountain of the mountain you .
Superconductivity is the ability of certain materials to conduct electric current with practically zero resistance. This capacity produces interesting and potentially useful effects. For a material to behave as a superconductor, low temperatures are required.
NUMERICAL SIMULATIONS OF HEAT AND MASS TRANSFER IN CONDENSING HEAT EXCHANGERS...ssuser7dcef0
Power plants release a large amount of water vapor into the
atmosphere through the stack. The flue gas can be a potential
source for obtaining much needed cooling water for a power
plant. If a power plant could recover and reuse a portion of this
moisture, it could reduce its total cooling water intake
requirement. One of the most practical way to recover water
from flue gas is to use a condensing heat exchanger. The power
plant could also recover latent heat due to condensation as well
as sensible heat due to lowering the flue gas exit temperature.
Additionally, harmful acids released from the stack can be
reduced in a condensing heat exchanger by acid condensation. reduced in a condensing heat exchanger by acid condensation.
Condensation of vapors in flue gas is a complicated
phenomenon since heat and mass transfer of water vapor and
various acids simultaneously occur in the presence of noncondensable
gases such as nitrogen and oxygen. Design of a
condenser depends on the knowledge and understanding of the
heat and mass transfer processes. A computer program for
numerical simulations of water (H2O) and sulfuric acid (H2SO4)
condensation in a flue gas condensing heat exchanger was
developed using MATLAB. Governing equations based on
mass and energy balances for the system were derived to
predict variables such as flue gas exit temperature, cooling
water outlet temperature, mole fraction and condensation rates
of water and sulfuric acid vapors. The equations were solved
using an iterative solution technique with calculations of heat
and mass transfer coefficients and physical properties.
CW RADAR, FMCW RADAR, FMCW ALTIMETER, AND THEIR PARAMETERSveerababupersonal22
It consists of cw radar and fmcw radar ,range measurement,if amplifier and fmcw altimeterThe CW radar operates using continuous wave transmission, while the FMCW radar employs frequency-modulated continuous wave technology. Range measurement is a crucial aspect of radar systems, providing information about the distance to a target. The IF amplifier plays a key role in signal processing, amplifying intermediate frequency signals for further analysis. The FMCW altimeter utilizes frequency-modulated continuous wave technology to accurately measure altitude above a reference point.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
2. • What is Superconductor?Or What is Superconductivity?
• A superconductor is a material that loses all its resistance to the flowof electric current whenit is cooled below
a certaintemperature called the critical temperature Tc. Example:Hg, Zn, Nb.
• Superconductivityis a phenomenon in whichcertainmetals, alloys and ceramics conduct electricitywithout
resistance whenit is cooled belowa certaintemperature called the critical temperature Tc.
• What is Critical Temperature?
• The temperature at whicha material’selectrical resistivitydrops to absolutezero is called the critical
temperature or transition temperature Tc.
• What is Critical Temperature?Explain usingresistivityversus temperature plot.
• The temperature at whicha material’selectrical resistivitydrops to absolutezero is called the critical
temperature or transition temperature Tc.
3. Fromfigure it can be seenthat the electricalresistivityof normal
metal decreases steadilyas the temperature is decreasedand reaches
a low value at 0K called the residual resistivityρ0. But in contrast, the
electrical resistivityof mercurysuddenlydropsto zero at critical
temperature Tc and is 4.2 K for Hg.
4. • Discuss various properties of Superconductor.
• Few important properties of superconductors are as follows:
• Electrical resistance
• The electrical resistance of a superconducting material is very low.
• Effectof impurities
• When impurities are added to superconducting elements, the superconducting propertyis not
lost, but the Tc value is lowered.
• Isotope effects
5. • ThecriticalortransitiontemperatureTc valueofa superconductoris foundtovarywithitsisotopicmass.Thisvariationin Tcwithits isotopicmassis calledtheisotopiceffect.
• The relation betweenTc and the isotopicmassis given by
• Tc ∝
𝟏
𝑴
whereM is theisotopicmass
• Magneticfieldeffect
• Theminimummagneticfieldrequiredto destroythesuperconductingstateis calledthecriticalmagneticfield Hc.Thecriticalmagneticfieldof a superconductoris a functionof temperature.
• Criticalcurrent densityJc and criticalcurrent Ic
• Thecriticalcurrentdensitycanbe definedasthe maximumcurrentthatcanbe permittedina superconductingmaterialwithoutdestroyingitssuperconductivitystate.
• TherelationbetweenIc andHc
• Ic = 2𝝅𝒓 Hc
• TherelationbetweenIcandJc
• Jc =
𝐈 𝒄
𝑨
Ais superconductingspecimen’scross-sectionalarea.
• Persistent current
• Thissteadyflowof currentina superconductingringwithoutanypotentialderivingit is calledthepersistentcurrent.
• Meissnereffect(Diamagneticproperty) Thecompleteexpulsionof allthemagneticfieldbya
superconductingmaterialis calledthe‘Meissnereffect’.
7. The above processoccursdue to the development of surface current,
which in turnresultsin the development of magnetization M withinthe
superconducting material.Hence,as the developed magnitationand
the appliedfieldare equalin magnitude butopposite in direction,they
canceleachothereverywhere inside the material.Thus,belowTc a
superconductor is a perfectlydiamagneticsubstance
(𝛘m = -1).
To prove 𝛘m= -1 for superconductors
We knowthat induction or magneticfluxintensityis givenby,
B = µ0 (M+ H)
........ (1)
Where
µ0is the permeabilityof free space
M is theintensityof magnetisation
and
H is the appliedmagneticfield.
But,for superconductorB = 0
8. • Therefore,Equation(1)canbe writtenas
• 0 = µ0 (M + H)
• ∵ µ0 ≠ 𝟎
• M + H = 0
• or M = - H
• or
𝑴
𝑯
= −𝟏
• Hence, 𝛘m = -1 where 𝛘m =
𝑴
𝑯
iscalledthemagneticsusceptibility.
• Provethatforsuperconductors,magneticsusceptibilityis -1.
• Weknowthatinductionormagneticfluxintensityis givenby,
• B= µ0 (M + H) ........(1)
• Where µ0is thepermeabilityoffreespace
• M is theintensityofmagnetisation
• and H is theappliedmagneticfield.
• But,forsuperconductorB = 0
• Therefore,Equation(1)canbe writtenas
• 0 = µ0 (M + H)
• ∵ µ0 ≠ 𝟎
• M + H = 0
9. Type I superconductors Type II superconductors
These superconductors are called soft
superconductors.
These superconductors are called hard
superconductors.
Only one critical field exists for these
superconductors.
Two critical fields Hc1(Lower critical field) and
Hc2(Upper critical field) exist for these superconductors
or M = - H
or MH=-1
Hence, 𝛘m = -1 where 𝛘m = MH is calledthemagneticsusceptibility.
• Discusstypesof Superconductors
•Basedon their behaviourin appliedmagneticfieldsuperconductorsare classifiedintotwo types:
•Type I superconductors:Type I superconductorsare thosewhichexhibitcompleteMeissnereffect,i.e., theyare completelydiamagnetic. They are alsocalledsoft
superconductors.
Example: Pb, Hg, Sn.
•Type II superconductors:Type II superconductorsare thosewhichdo notexhibitcompleteMeissnereffect. They are alsocalledhardsuperconductors.
Example:Y1Ba2Cu3O7, Nb3Sn, Nb3Ge.
•Basedon thecoolantsto achievesuperconductingstatein a material, theyfallintotwocategories:
•Low-temperaturesuperconductors:Superconductorsthatuse liquidheliumas coolantarecalledLow-temperaturesuperconductors.
•High-temperaturesuperconductors:Superconductorsthatuse nitrogenas coolantare calledHigh-temperaturesuperconductors.
• Whatis thedifference betweenType - I and Type – II superconductors?
10. • Explain Low and High temperature superconductors.
•Low-temperature superconductors: Superconductors that use liquid helium as coolant are calle
Low-temperature superconductors.
•High-temperature superconductors: Superconductors that use nitrogen as coolant are called H
temperature superconductors.
• Draw structure of YBCO superconductor.
11. • Write applications of Superconductors
• The application of superconductors are as follows:
• Superconductors can be used to transmit electrical power over very long distances without any power loss or any voltage drop.
• Superconducting generators has the benefit of small size and low energy consumption than the conventional generators.
• Ore separation can be done efficiently using superconducting magnets.
• Very fast and accurate computers can be constructed using superconducting magnets.
• Very strong magnetic fields can be generated with coils made of high Tc superconducting materials.
• Superconductors can act as relay or switching system in a computer. They can be used as a memory or storage element in computers.
• Superconducting device can be used to detect by small magnetic field changes.
• What is the basicprincipleused in the magneticlevitation.
• The basic principle for achieving magnetic levitation is as follows:
• Zero resistance
• Meissner effect
• ExplainJosephsonjunctionusing schematic diagram.
• A Josephson junction is a junction formed with two superconductors with a very thin strip of an insulator separating them. Josephson junctions are used in sensitive
magnetometers called SQUID- Superconducting Quantum Interference Device. A SQUID is formed by connecting two Josephson junctions in parallel.