https://www.irjet.net/archives/V6/i9/IRJET-V6I9272.pdf

1. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 1762
“Design & Analysis of Parabolic Trough Collector on Effect on
Nano-Fluids”
Deepak Dhull, Somvir Arya
1Deepak Dhull M.Tech, Scholar IIET Haryana India
2Somvir Arya HOD Mechnical Dept. IIET Haryana India
---------------------------------------------------------------------***----------------------------------------------------------------------
Abstract - This thesis is interested with enhancing the
activity of a parabolic through innovation based solar
thermal power plant by methods for control by Nano fluids.
One of the testing issues in a solar thermal powerplant,from
the control perspective, is to keep up the thermal procedure
factors near their coveted levels. As opposed to a customary
power plant where fuel is utilized as the controlled variable,
in a solar thermal power plant, solar radiation cannot be
controlled and in certainty it incidentally goes about as an
unsettling influence because of its change on a day by day
and occasional premise.
Nano fluids are designed colloidal suspensionofNanometer
measured particles called Nano particles in a base liquid.
Metals, oxides, carbides or carbon nanotubesarethegeneral
antecedents for nanoparticles. Normal base fluids
incorporate water, ethylene glycol and oil. Nano fluids show
upgraded thermal conductivity becauseofexpansivezoneto
volume proportion and high turbulence properties.
Key Words: PARABOLIC, THERMAL POWER PLANT,
NANO FLUIDS, SOLAR RADIATION, COLLOIDAL,
SUSPENSION, NANOTUBES.
1. INTRODUCTION
World vitality utilization has expanded quickly since the
mid-nineties of the most recent century.ThisisshowninFig.
1.1. In addition, vitality utilization is relied upon to keep on
increasing throughout the following fifty years.
Subsequently, giventhepresent effectofpetroleumproducts
on environmental change and the normal consumption of
non-renewable energy sources soon [1], there is an earnest
requirement for perfect and manageable vitality assets.
Chart 1: World energy consumption between 1990
and 2040
In rundown, modifications in solar radiation, nonlinearities
and characteristics of plant reverberation are a real test for
control at the ACUREX plant. Advancement and abnormal
energy skill levels. Solar thermal innovationwouldtherefore
assume a enormous portion of reducing all-inclusive
CO2.Solar thermal technology is becoming aggressive in
terms of price with traditional petroleum derivatives due to
mechanical advances, mass generationof energy,economies
of scale and increased task. ACUREXisanexplorationagency
in Spain that has helped researchers cross-sectionally over
the academic community and industry to gain anknowledge
of its basic flow and inalienable characteristics, creating
distinct model structures and control systems with the aim
of improving the plant's activity, as well as others such as
ACUREX.
1.1 Solar Collectors:
Solar ipower iis ia imechanical igadget ithat icaptures
ibrilliant isolar ienergy ifor iuse ias ia isource iof ienergyifor
iwater iheating ior ipower igeneration. i"Solar icollectors
ihave ifour imain iclassifications:
i i● iLow iTemperature iUnglazed i i i i
i i● iConcentrating i i i i
Low iTemperature iUnglazed iCollectors: i
Components iof idark ishading itangling ior ipipes imade
ifrom imaterials ibased ion ielastic ior iplastic. iIf iit iis inot
iprotected, iin icooler iconditions iit icannot ioperate
iproductively ior iwhen ielevateditemperature iwater
i(showering itemperature) iisineeded.iTheyiareifrequently
ireferred ito ias i"unglazed" ias ithey ihave ino iglass icover
isuch ias ilevel iplate ior iemptied icollectors iof itubes.
Flat iPlate iCollectors i
Plan ibasically ia iprotected ibox iwith ia isafeguard isheet
iwelded ito icopper ipipe ithrough iwhich ithe iwarmth
iexchange ifluid iflows ithrough. iNo iprotection iover ithe
isafeguard iis ian iintrinsic iweakness iof ithe ioutline iand
iprompts ihigh iwarmth imisfortune. iThis iwarmth
imisfortune iimplies ilevel iplates ican't iconvey isweltering
iproductively iat ihigher itemperatures iand iexecution iis
iextraordinarily idiminished iin ichilly iclimate. i i i
i i

2. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 1763
1.2 iParabolic itrough icollectors i
A iparabolic itrough iconsists iof ia istraight iparabolic
ireflector ifocusing ilight ion ia ireceiver ilocated ialong ithe
icentral iline iof ithe ireflector. iThe ireceiver iis ia itube
ilocated idirectly iabove ithe iparabolic imirror icore iand
iloaded iwith ia iworking iliquid. iThe ireflector itakes iafter
ithe isun iamid ithe isunshine ihours iby ifollowing ialong ia
isolitary ihub. iA iworking iliquid i(e.g. iwater) iis iwarmed
ito i150– i350 i°C i(300– i660 i°F) ias iitimovesithroughithe
irecipient iand iis ithen iutilized ias ia iwarmth ihotspot ifor
ia ipower iage iframework. iTable i1.1 ishows iorder iof
isolar icollectors ias iper icentralization iof idegrees.
Table i1.1: iClassification iof isolar icollectors
iaccording ito iconcentration idegree i i
Category i i iEfficiency,
i% i
Example i Temperature
irange, iºC i i
No
iconcentration
i i
30 i– i50 i i iFlat-
plate i
Evacuated
itube i i i i i
75-200 i
Medium
iconcentration
50 i– i70 i i Parabolic
icylinder i i
150 i- i500 i i
High
iconcentration
60 i– i75 i
Parabodial
1500 iand
imore i i
2. HEAT TRANSFER IN NANOFLUIDS:
Suspended nanoparticles in ordinary fluids, called
nanofluids, have been the subject of concentrated
investigation worldwide since spearheadingspecialistsasof
late found the peculiar thermal conduct of these fluids.
Existing hypotheses couldn't clarify the improved thermal
conductivity of these fluids with little molecule fixation.
Micrometer-sized molecule liquid suspensions display no
such sensational upgrade. This distinction has prompted
investigations of different methods of warmth exchangeand
endeavors to build up an exhaustive hypothesis.
2.1 SYNTHESIS:
Nanofluids are produced by different techniques are,
1. Direct Evaporation (1 step)
2. Chemical precipitation (1 step)
3. Chemical vapour condensation (1 step)
4. Gas condensation/dispersion (2 steps)
Although it may be a challenge to stabilize, continuing study
suggests that it is feasible. Metallic particles, oxide particles,
carbon nanotubes, graphene nano-flakes and ceramic
particles are nano-materials used in nanofluid synthesis so
far.
Figure 1 : Flat plate collector for water heating
Figure 2 : Heat Transfer Coefficient for deionized
water
CONCLUSION:
Using appropriate assumptions, the non-linear equations of
the energy balance in the parabolic trough collector device
are simplified. The final equation set involves all possible
parameters that affect system efficiency and can be solved
immediately without the expense of computation.The effect
of the temperature of the inlet fluid, the flow rate, the
ambient temperature, the irradiation of the solar beam and
the coefficient of heat transfer between the cover and the
ambient are the parametersinvestigatedtotesttheprecision
of the model. The thermal efficiency can be discovered with
high precision, according to the final outcomes; the
deviations are discovered to be up to 0.2 percent in most of
the cases examined.
REFERENCES
[1] Timilsina GR, Kurdgelashvili L, Narbel PA, A review
of solar energy markets, economics and policies. Policy
Research Working Paper; 2011.
[2] Xiaowu W, Ben H. Exergy analysis of domestic-scale
solar water heaters. Renew Sustain Energy Rev
2005;9(6):638–45.
[3] Wang X, WangR,WuJ.Experimental investigationof
a new-style double-tube heat exchangerforheatingcrudeoil
using solar hot water. ApplThermEng 2005;25(11–
12):1753– 64.

3. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 1764
[4] Al-Madani H. The performance of a cylindrical solar
water heater. Renew Energy 2006;31(11):1751–64.
[5] Ho CD, Chen TC. The recycle effect on the collector
efficiency improvement of doublepass sheet-and-tube solar
water heaters with external recycle. Renew Energy 2006;
31(7):953–70.
[6] Eric DK. Engines of creation. 4th edition. London:
Oxford Press; 1986.
[7] Maxwell JC, A treatise on electricity and magnetism,
vol. 1. UK: Oxford.
[8] erekhov VI, Kalinina SV, Lemanov VV. The
mechanism of heat transfer in nanofluids: state of the art
(review). Part 2.Convective heat transfer.
ThermophysAeromech 2010;17(2):157–71.
[9] S. Kakaç, A. Pramuanjaroenkij,Reviewofconvective
heat transfer enhancement with nano-fluids,Int. J.Heat Mass
transfer, vol. 52, pp. 3187-3196,2009.
[10] K. Das, U.S. Choi, Wenhua Yu, T. Pradeep, Nano-
fluids science and technology,John Wiley & Sons.
BIOGRAPHIES
Deepak Dhull, M. Tech, Scholar
IIET Haryana India
thor
Photo