PowerPoint Presentation
Parabolic Solar SystemBasic- Solar Energy Solar Energy Potential
in IndiaConcentrated Solar Power(CSP)Introduction to Parabolic
Solar SystemDesign of Parabolic Trough ConcentratorPower Generation
Power StoragePerformance And Its EfficiencyApplications In Present
Era1.Basic: Solar EnergySun as the source of energy. Various Solar
energy ApplicationsImportant Facts
Sun as the source of energyThe sun has a surface temperature of
6000C, maintained by continuous nuclear fusion reactions between
hydrogen atoms within its interior. These nuclear reactions will
gradually convert all of the hydrogen into heavier elements, but
this is a relatively slow process and the sun should continue to
supply power for another 5 billion years.
Important factsThe sun radiates huge quantities of energy into
the surrounding space, and the tiny fraction intercepted by the
Earth's atmosphere, 150 million km away, is however equivalent to
about 15,000 times humanity's present rate of use of fossil and
nuclear fuels. Even though approximately one-third of the
intercepted energy is reflected away by the atmosphere before
reaching the earth's surface, this still means that a continuous
and virtually inexhaustible flow of power amounting to 10,000 times
our current rate of consumption of conventional fuels is available
in principle to human civilization.
2.Solar Energy Potential in IndiaGovernment PoliciesThar
DesertMarket Analysis and Opportunity
3.Concentrated Solar PowerIntroduction to CSPCSP Growth
RateDifference b/w CSP & CPV(Concentrated Photovoltaics)Effect
of CSP on Wildlife 4.Introduction to Parabolic Solar SystemCSP
TechniqueLinear Fresnel ReflectorsPower TowerParabolic
TroughEnclosed TroughDish StirlingsParabolic Solar System
5.Design of Parabolic troughParabolic GeometryA parabola is the
locus of a point that moves so that its distances from a fixed line
and a fixed point are equal. The equation of a parabola is as
follow. X.X = 4a Y where, 4a = lattice rectum a = Focus pointBasic
Parts And structureReflecting SurfaceAbsorberSupport
StructureTracking SystemPumping System
6.Power generationParabolic Trough Power plant System
technologyDirect steam generationFossil fuel backupPower
CyclesRankine cycleOrganic rankine cycleComined cycle system7.Power
storage8.Performance And Efficiency Calculationa) Optical
performance absorbed radiation per unit area of unshaded aperture
is given by: S=Ib() K Where Ib is effective incident beam radiation
on the plane of aperture, is the reflectance of the concentrator,
is intercept factor, is transmittance, and is absorptance. K is an
incidence angle modifier that can be used to account for deviations
from the normal of the angle of incidence of the radiation on the
aperture.
Performance and Efficiency Calculations. PERFORMANCE b. Thermal
performance The actual useful energy gain: Where Aa is the unshaded
area of the concentrator aperture and Ar is the area of the
receiver, S is the absorbed solar radiation per unit of aperture
area, Ti and Ta are inlet fluid temperature and ambient temperature
FR is the collector heat removal. OVER ALL EFFICIENCY Over all
efficiency of a solar collector is based on the optical and thermal
performances. the over all efficiency can be calculated as; = (Qu /
Ib) 100
9.ApplicationsCooling and air conditioningSteam
GenerationDesalination of sea waterProduction of hot water for
domestic and industrial useProduction of Hydrogen gas
Why Is the Sun So Important? 1. a. What is the sun? The sun is a
star that is the source of light and heat for the planets in our
solar system. b. What are some reasons that the earth needs the
sun? Life on earth would not exist without the heat and light
provided by the sun. The suns gravity also helps keep the earth in
its orbit, causes weather phenomena, and plays a role in ocean
tides. 2. Important facts: In terms of energy generated, burning
all the coal, oil, gas, and wood on earth would only equal a few
days of energy output by the sun. The total amount of energy humans
have derived from burning fossil fuels since the start of
civilization is less than all the energy provided by the sun in
just 30 days. More energy from the sun falls on the earth in one
hour than everyone on earth uses in one year. Renewable energy
could account for almost 80% of the world's energy supply within
four decades, but only if governments, businesses, and individuals
pursue the policies needed to promote it.