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Cool covered sky-splitting spectrum-splitting FKRubén Mohedano, Juan C. Miñano, Pablo Benitez, Marina Buljan, Julio Chaves, Waqidi Falicoff, MaikelHernandez, and Simone Sorgato Citation: AIP Conference Proceedings 1616, 200 (2014); doi: 10.1063/1.4897060 View online: http://dx.doi.org/10.1063/1.4897060 View Table of Contents: http://scitation.aip.org/content/aip/proceeding/aipcp/1616?ver=pdfcov Published by the AIP Publishing Articles you may be interested in Split Decision Covered Phys. Today 49, 91 (1996); 10.1063/1.2807640 Water‐cooled internal combustion engine with a sound‐absorbing cover J. Acoust. Soc. Am. 77, 779 (1985); 10.1121/1.392290 ’’How to cool a book by its cover’’ revisited Phys. Teach. 14, 443 (1976); 10.1119/1.2339447 How to cool a book by its cover Phys. Teach. 13, 324 (1975); 10.1119/1.2339166 How to cool a book by its cover Phys. Teach. 13, 165 (1975); 10.1119/1.2339103
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RuJ
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Abstrabirth to panels. processalso comBPC Siradiatioof the D
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IN
The arcinsertion osolar cell collected (secondaryprimary op
FIGURE concentratolens and tproperties, downwards
Cool Co
ubén MoheJulio Chave
Altadena, CA,
ct. Placing a plaa quite differenThe idea enabl
s for the optics, ampatible with twilicon cell for beon and higher enDNI into electric
rds: Fresnel lenum Splitting , DN
42.15.Eq, 42.7
NTRODUCT
chitecture of thof a plane mirto bounce the later if we
y optics SOEptics (POE) gla
1. The CCFKor: a plane mirrothe receiver, wcan be placed
s.
overed S
edano1, Juaes1, Waqid
USA and Mad
ane mirror betwet CPV system wles not only a thautomatic alignmwo different techetter usage of Dirergy productionity.
ns, nonimaging, SNI 9.Ek, 88.40.F, 8
TION: THE
he FK concentrror half the wlight back, wplace the or
E and solar cass cover, look
K concept is bor is located betwhich, thanks on the Fresnel
Sky-split
an C. Miñadi Falicoff1
drid, Spain,2Un
een the primary where all the high
hinner device (ament of primaryhniques to increrect Normal Irra throughout the
Solar concentrat
88.40.H, 88.40.jj
E CCFK
trator allows thway towards thhere it could briginal receivcell) under th
king downward
based in the Ftween the Fresnto the reflectiolens panel facin
tting Sp
ano1,2, Pab, Maikel H
niversidad Poli
lens and the rech-tech componena half of the or
y and secondary ase the module adiance DNI, anyear. Simple cal
or, Köhler integ
, 88.40.fc, 88.40
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FK nel on ng
Thiand is a high and oucell, bperformHCPVsurfacecompoopticalin a sinThe ovcells aelectrictwo dbetweeavoideare ke3mm-swould ambienglass, produccan beheat spabout a
Ow
cost htechnoalignmis not CCFK
pectrum
blo BenitezHernandez1
itécnica de Ma
ceiver in a Fresnnts sit on a commriginal) but also
lenses, and cellefficiency: spec
nd sky splitting tlculations foreca
gration, CPV, Mu
0.jp
is device is cpatent pendingConcentration
utstanding irraboth spectral mance feature
V concept, showe of the glasonents of a Cl primary and sngle step Silicver-molding oassemblies allocal component
different opticaen parts to aed too, as long ept within reasside length for
lead to tempent). Only a hfor instance) mced at the cell e removed by preader cast aa 4%, so the ef
wing to its flathigh-efficiencyology that can ment of the fro
necessary, oK is very toleran
m-splittin
z1,2, Marina1, Simone S
adrid (UPM), M
nel Köhler (FK) mon plane, that o
a low cost 1-sl/wiring protectioctrum splitting bto harvest the enast the module w
ulti-Junction Sol
called Cover Cg. It device shan-Acceptance aadiance uniform
and spatial es [3]. One nwn in FIGUREss cover con
CPV system, nsecondary (PO
cone-On-Glass of SOEs and Pows for a bettts, withdraws tal parts, and a minimum. Hg as the cell sizsonable levelsr the former aneratures of abheat spreader might be neede CCA all overnatural convec
a shadow at thfficiency loss i
tness, the refley second-surfa
yield reflectivnt cover with
only parallelismnt to the relati
ng FK
a Buljan2,Sorgato1
Madrid, (Spain
concentrator givof the primary letep manufacturion. The concept
between a 3J andnergy of the diffuwould convert 45
lar Cells,
Cooled FK (Cares with the Fangle product (mity onto the[2], yielding
novelty of thisE 1, is that the ntains all the namely: solar
OE and SOE, m(SOG)) and w
POEs on top oter protection the need to inv
reduces alignHeat sinks caze and concents (the models nd 500×for theout 30ºC abov(screen-printe
ed to spread thr the glass, whction. The SOEhe entry apertus quite reasona
ector can be aace silver mirrvity above 95%the optical ref
m is requiredve distance be
n)
ves ens ing t is d a use 5%
CCFK) FK [1] (CAP)
e solar high
s new inner main cells,
molded wiring. of the of all
vest on nment an be tration show
e latter ve the ed on
he heat here it
OE and ure of able.
a low-ror, a %.The flector
d. The etween
10th International Conference on Concentrator Photovoltaic SystemsAIP Conf. Proc. 1616, 200-202 (2014); doi: 10.1063/1.4897060
© 2014 AIP Publishing LLC 978-0-7354-1253-8/$30.00
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On: Tue, 09 Jun 2015 11:33:30
this mirrorthe solar c
The br
CCFK mo
FIGURE 2thin modulsingle plansilicone casstages are aligned with
INCRE
The peenhanced
FIGURE 3spectrum Rbottom junc
r and the top cell side-length
reakdown of eodule is shown
2.CCFK elemenle comprises alne substrate: thst protects all thmanufactured inh respect to each
EASED ENETHE
erformance of twith the addi
3.Spectrum splittR( ) towards thection that is impo
cover (relative are permitted)
elements includin FIGURE 2 in
nts breakdown ill high-tech coat of the SOG
hese elements ann one step and h other
ERGY PROE CCs4FK
the CCFK canition of two te
ting concept appe 3J cell while aossible to harves
shifts as long ).
ded in the basn 3D.
in 3D. This ultrmponents in on
G lens panel. Thnd the two opticare automatical
ODUCTION
be dramaticalechnologies th
plied to the CCFa fraction of thest) is transmitted
as
sic
ra-ne he cal lly
N:
lly hat
are selSky Spbring tthanks
Thethat typhotocconnec(whoseand arethe spepoint cthe neaboth tsensitivband-pof the on thafilter concenevaporsimple
FK optical train. e light, T( ) (orid to a silicon sola
ldom utilized iplitting. In thithem into plays to the geomet
Spec
e first one is bypically produccurrent that iction of this jue photocurrente below that oectrum that cacontact high efar infrared, a this BPC Si cve. The beam
pass dichroic fCCFK (FIGU
at plane allowand the fac
ntrated (4×) atrated on a planer and potential
A band-pass diciginally producinar cell under the
in practice: Speis case, we hay in a simple antry of the CCFK
ctrum Splitt
based on “stealices a boost in is useless, owunction with tots are balanced f the bottom juan be split andfficiency silicofraction of thecell and the b
m split can be filter replacing
URE 3) the limw for a better cts that the t this stage anne substrate mlly cost-effecti
chroic filter S2(ng an excess of
e filter.
ectrum Splittinave found a wnd practical maK.
ting
ing” part of ththe bottom jun
wing to the op and middle
d by design typiunction). The pd directed to aon cell (BPC Sie spectrum to wbottom junctio
done by meag the original mmited incident a
performance obeam is al
nd the filter cmake its manufive.
) reflects a partf current in the
ng and way to anner,
e DNI nction series
e ones ically, part of a back i) is in which
on are ans of mirror angles of the lready
can be facture
t of the 3J cell
201 This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP: 138.4.140.1
On: Tue, 09 Jun 2015 11:33:30
Modelsbeams hittthe potenticells [4]. Ithe two-cethe efficiealone). Nocase is red
Notice concentratplaced if tfree area cells that clens (FIGUSplitting”.
The us
annual enethe geogracost-effectfactors, elmodules.
FIGURE 4means of adof the origin
A siteradiation o1880 kWdiffuse. If 22% efficiof losses,potentiallybreakdownkWh/m2 bkWh/m2 b
s and prelimting the filter wial of spectrumIn a set up likeells (4J) combency (relative totice the thermduced due to th
Sky
there is stillted sunlight spthe Spectrum Scan be actual
can cast the difURE 4). This s
sage of the dergy productionaphical locationtiveness of thilectricity fees
4. Sky splittingdding flap plate nal mirror)
Energy
e like Madridof about 2584
Wh/m2 being df we use 3J aniencies, and co, we find ouy deliver 859n is 635 kWh/mby the spectruby the sky-spli
minary prototywith 25deg) havm splitting usinge the one showo can achieve to the efficienc
mal load of thee spectral divis
Splitting
l a sizable gaots where the BSplitting concelly filled by fffuse light crosimple approac
diffuse radiation and greater in and weather is approach deand on the p
g to collect diffcells at the bott
y Production
d receives akWh/m2 in tw
direct radiationnd Si cells achonsidering the dut the CCS4F9 kWh/m2 evm2 delivered bum splitting Sitting unit. The
ype tests (wive demonstrateg 3J and BPC
wn in FIGURE a 13% boost
cy of the 3J cee MJ cell in thsion.
ap between thBPC Si cells aept is used. Thflat plate silicossing the Fresnch is called “Sk
on gives greatindependence oconditions. Th
epends on theprice of flat P
ffuse radiation btom plane (inste
n
yearly globwo-axis trackinn and the re
hieving 39.5 andifferent sourcFK device cavery year. Thby the 3J cell, 7Si cell and 14e module wou
ith ed Si 3, in ell his
he are his on nel ky
ter on he se
PV
by ad
bal ng, est nd es an he 75 49
uld
therefo(0.45=CPV mDNI in
For
a shadAR coAdditiis bounis conv
A nThe apractictime. importtechniqto andemonconcepsubmitopen fo
Supunder FP7/20AgreemProgra2013).
1. P. BphoA40
2. P. EundchroInteSys
3. P. ZVila“Excon
4. P. BConBetCPV
ore turn into =858/1880), i.emodule producn Madrid.
r this calculatiodow of 5% of thoating is applieonally, the lighnced back to thverted into elec
CO
novel CPV moapproach offecal advantages
The basic tant practical ques to increasextremely-eff
nstrating the pt with a ptted to differefor companies w
ACKNO
pport for this projects HI-L
007-2013) anment no. Pamme (Marie
RE
Benítez et al., “Hotovoltaic concen0, (2010). Espinet et al., “Tder Fresnel-Baseomatic aberratioernational Confestems, Toledo, SZamora, P. Benítaplana, Y. Li, Mxperimental charncentrators,” J. PBenítez et al, “Uncentration PV Stween GaInP/GaV-7, Las Vegas,
a 45%-equive. it would yielces using only
on we have assthe total entry aed to the flat ht reflected in the Si back plactricity as well
ONCLUSION
odule concept ers significants while being CCFK conceadvantages. Ose the energy
ficient moduletechnological
prototype. Theent research prwilling to inve
OWLEDGM
work partly cLED (Grant ag
nd ADOPSYPITN-GA-201Curie Actions
EFERENCE
High performancntrator”, Optics
Triple-junction soed concentrators on and off-axis oerence on ConceSpain (2012) tez, R. Mohedan
M. Hernández, J. racterization of FPhoton. Energy.2Ultra high efficienSystem Based onaInAs/Ge and BP, 2011
valent CPV mld the energy athe available y
sumed the SOEaperture area aentry glass suthe 3J cell gri
ate where a par.
NS
has been prest performancesimple at the
ept already On top of thatproduction can
e. The next stfeasibility o
e project wirograms but ist in this modu
MENTS
comes from thgreement nº 61YS (REA 3-608082, P
s) of the FP7/
ES
ce Fresnel-basedExpress, 18, A2
olar cell performtaking into acco
operation” in 8thentrating Photovo
no, A. CvetkovicChaves, J.C. Mi
Fresnel-Köhler 2(1), 021806 (20ncy, High n Spectral DivisiPC silicon Cells”
module a 45% yearly
E casts and an urface. idlines rt of it
ented. e and
same offers t, two n lead tep is
of the ill be s also
ule.
he EC 19912, Grant
People /2007-
d 25-
mance ount h oltaic
c, J. iñano,
012).
ion ”,
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