developments in ducted water current turbines
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8/6/2019 Developments in ducted water current turbines
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zmjni pnplr >1%08%04 >
Jlqlifpelozt mo j|dzlj {nzlr d|rrloz z|rbmolt
Brmno Cmrcl
Tdhffi fa Lokmollrmok) Krmaamzh \omqlrtmz}) PEB / Mozrfj|dzmfo7 tznzmd hlnj noj d|rrloz aif{ zmjni pf{lr
Zhlrl nrl bntmdnii} z{f elzhfjt fa lxzrndzmok lolrk} arfe zmjni aif{t/ Zhl dfoqlozmfoni
elzhfj mt zf pindl n bnrrnkl ndrftt no ltz|nr} {mzh n inrkl zmjni rnokl zf drlnzl n tznzmd hlnj
fr prltt|rl jmaalrlodl) noj fplrnzl n if{ hlnj h}jrf%lildzrmd pf{lr pinoz {mzh mozlremzzloz)
rlqlrtmok aif{/ Zhl bltz cof{o lxnepil fa zhmt npprfndh) {hmdh hnt bllo zrlnzlj mo jlznmi mo
Bnclr S>U) mt zhl 2:0 E[ motzniinzmfo mo zhl Rnodl Rmqlr Ltz|nr} mo Arnodl) dfepilzlj mo
>=11/ No mozlrltzmok qnrmnoz hnt bllo prfpftlj afr Jlrb} mo [ltzlro N|tzrnimn) {hlrl z{f
njgndloz zmjni bntmot lxmtz S2U/ Zhl prfpftni mt zf niif{ aif{ arfe zhl fdlno mozf fol ltz|nr}
nz hmkh zmjl noj f|z fa zhl fzhlr nz if{ zmjl) zhlrlb} drlnzmok n plrenoloz jmaalrlodl mo ilqli
blz{llo zhl z{f bntmot/ N tzlnj} fol%{n} aif{ df|ij zhlo bl enmoznmolj zhrf|kh z|rbmolt mo
dfoj|mzt dfooldzmok zhl ltz|nrmlt/ Efrl laamdmloz z|rbmolt dno bl |tlj afr fol%{n} aif{) noj
n tzlnj} aif{ fqlrdfelt fol fa zhl engfr jrn{bndct fa eftz nebmloz lolrk} tf|rdlt) m/l/mozlremzzloz nqnminbmimz}/ P|eplj tzfrnkl nitf bldfelt n pfttmbmimz}) {hlrlb} {nzlr mt
p|eplj bndc mozf zhl hmkhlr bntmo nz faa%plnc plrmfjt afr |tl j|rmok plnc plrmfjt/ Hf{lqlr
zhmt tdhlel) imcl fzhlr prfpftnit afr inrkl tdhlelt bntlj fo tznzmd hlnj) t|aalrt arfe zhl
jrn{bndct fa lxplotmql dmqmi {frct) jmtr|pzmfo zf thmppmok noj loqmrfoelozni dfodlrot/
Zhl iltt {lii%cof{o elzhfj fa lxzrndzmok lolrk} arfe zmjni noj fzhlr aif{t mt zf dfoqlrz zhl
cmolzmd lolrk} fa efqmok {nzlr jmrldzi} zf eldhnomdni thnaz pf{lr {mzhf|z fzhlr{mtl
mozlrr|pzmok zhl onz|rni aif{) mo n enoolr nonifkf|t zf n {moj z|rbmol/ Zhmt dfodlpz mt ofz
lozmrli} ol{) hnqmok bllo moqltzmknzlj b} Rlnjmok \omqlrtmz} mo zhl \C mo >=;= S4U) b}
Jnqmt mo Dnonjn S:U noj b} Hmizfo mo N|tzrnimn nz nbf|z zhl tnel zmel S=80t zf lxzrndz lolrk} arfe rmqlr d|rrlozt S4U/
NPPLOJMX 4/>
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zmjni pnplr >1%08%04 2
B|z zhl mjln fa |tmok d|rrloz aif{ fo n inrkl tdnil mt ol{/ Lqlo nt rldlozi} nt >==> n
dfepilzl bffc fo zmjni pf{lr enjl of elozmfo fa zhl dfodlpz S>U/ Mz mt foi} of{ zhnz zhmt
dfodlpz mt blmok lxpifrlj afr inrklr tdnil |tl S:) 1) ;) 8) =) >0) >>U/
Jmrldz dfoqlrtmfo fa cmolzmd lolrk} b} n z|rbmol mo fplo aif{ hnrolttlt iltt fa zhl zfzni
nqnminbil lolrk} mo n zmjni aif{ mo no ltz|nr} zhno df|ij bl lxzrndzlj b} jneemok zhl {hfilltz|nr}/ Hf{lqlr jmrldz dfoqlrtmfo hnt tlqlrni njqnoznklt7
>/ Zhl dnpmzni dftz fa dmqmi {frct mt limemonzlj/
2/ Jmtr|pzmfo zf ldft}tzlet noj bfnzmok mt emomemtlj/
4/ Fdlno d|rrlozt) {moj%moj|dlj d|rrlozt noj rmqlr aif{t nt {lii nt zmjni aif{t dno bl |tlj/
Zhlrl mt of ollj afr n inrkl zmjni rmtl noj anii afr lxnepil zhl Elttmon tzrnmz blz{llo
Tmdmi} noj zhl Mznimno enmoinoj hnt 2/: e&t d|rrlozt {mzh olkimkmbil rmtl noj anii S>>U/
Hlodl n {mjlr rnokl fa tmzlt dno bl lxpifmzlj) modi|jmok rmqlrt) tzrnmzt blz{llo mtinojt)
tmzlt faa hlnjinojt noj no} fzhlr tmzlt {hlrl zhlrl mt arl~|loz fr dfotznoz tzrfok aif{/
Zhlrl nrl nitf tfel pfzlozmni prfbilet {mzh zmjni fr enrmol d|rrloz z|rbmolt/ Zhltl modi|jl
>/ Qlr} inrkl jf{otzrlne jrnk afrdlt) tlqlrni zmelt inrklr zhno zhftl ndzmok fo n {mojz|rbmol fa tmeminr pf{lr f|zp|z) rl~|mrmok tzrfok nodhfrnkl/
2/ [llj krf{zh fo binjlt) {hmdh df|ij rlj|dl zhlmr laamdmlod}/
4/ Dfrrftmfo/
:/ Tzfre jnenkl/
=80t hnt rlj|dlj zhl dftz fa krmj%dfooldzlj {moj lolrk} b} n andzfr fa nbf|z 2U/ Tlqlrni afret fa z|rbmol nrl blmok
moqltzmknzlj nrf|oj zhl {frij noj ofol hnt }lz lelrklj nt n dilnr {moolr/ Tfel fa zhl
qnrmf|t afret d|rrlozi} blmok lqni|nzlj nrl rlqml{lj blif{/
2/> Nxmni aif{ z|rbmolt
Enrmol D|rrloz Z|rbmolt Izj mo Brmznmo nrl pmfollrmok zhl |tl fa nxmni aif{ z|rbmolt/ Mo >==:
zhl} jlefotzrnzlj n >0 c[ nxmni aif{ z|rbmol mo Ifdh Imoohl mo Tdfzinoj) noj zhl} nrl
d|rrlozi} jlqlifpmok n 400 c[ z|rbmol afr zhl Tlqlro Ltz|nr} faa Jlqfo) Lokinoj S;) 8) =)>0U/ Zhmt z|rbmol mt lxpldzlj zf rltlebil fol fr z{f dfoqlozmfoni {moj z|rbmolt) ef|ozlj fo
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zmjni pnplr >1%08%04 4
n dnozmilqlr zf{lr amxlj zf zhl fdlno aiffr (Amk/>-/ Fzhlr tenii pfozffo%ef|ozlj nxmni aif{
z|rbmolt hnql bllo b|miz) afr lxnepil b} Zlne{frc Zldhofifk} mo zhl Olzhlrinojt S>4U noj
b} T{lotfo nz zhl Ofrzhlro Zlrrmzfr} \omqlrtmz} mo Jnr{mo) N|tzrnimn S>:U/
2/2 Drftt aif{ z|rbmolt
Z|rbmolt mo {hmdh zhl jmrldzmfo fa aif{ mt ndrftt zhl nxmt fa rfznzmfo nrl dfeefoi} rlalrrlj zf
nt qlrzmdni nxmt z|rbmolt) tmodl zhlmr nxmt mt |t|nii} qlrzmdni/ Hf{lqlr zhl} nrl efrl
ndd|rnzli} jltdrmblj nt drftt aif{ tmodl zhlmr jmtzmok|mthmok alnz|rl mt zhl andz zhnz zhl
jmrldzmfo fa aif{ mt ndrftt zhl nxmt fa rfznzmfo) {hmdh en} bl hfrmwfozni/ Jnqmt dfoj|dzlj
inbfrnzfr} zltzt fo n drftt%aif{ {nzlr z|rbmol mo >=8>%2 noj dfotzr|dzlj n prfzfz}pl {hmdh
prfj|dlj 20 c[ lildzrmdni pf{lr noj no ltzmenzlj :< c[ thnaz pf{lr mo >=84 S:U/ Efrl
rldlozi} n 1 e jmnelzlr qlrzmdni nxmt z|rbmol (Amk/2- hnt bllo motzniilj mo zhl Tzrnmz fa
Elttmon) blz{llo Tmdmi} noj zhl Mznimno enmoinoj/ Mz mt lxpldzlj zf prfj|dl nbf|z >U/ Kfrifq noj df%{frclrt mo zhl \omzlj Tznzlt hnql zltzlj
efjlit fa n drftt%aif{ z|rbmol {mzh hlimdni binjlt noj dinme zhnz mzt plrafrenodl mt t|plrmfrzf n dfoqlozmfoni Jnrrml|t drftt aif{ z|rbmol S>1U hnt prfpftlj n inrkl drftt%aif{
z|rbmol {mzh >0 binjlt t|ppfrzlj b} rmokt zfp noj bfzzfe) jrmqmok rmok%dne h}jrn|imd p|ept
zf jlimqlr >0 E[ mo n : e&t d|rrloz/
Amk/>/ Fplo nxmni aif{ z|rbmol dfodlpz S;U/ Amk/2/ Mznimno drftt aif{ z|rbmol S>>U/
4/ Fplo noj j|dzlj z|rbmolt
Imcl dfoqlozmfoni h}jrfpf{lr z|rbmolt) motzniinzmfot t|dh nt zhl Rnodl Rmqlr mo Arnodl
|zmimtl zhl prltt|rl jmaalrlodl drlnzlj b} n tznzmd hlnj) m/l/ zhl pfzlozmni lolrk} mohlrloz mo n
jmaalrlodl mo {nzlr t|randl lilqnzmfo/ Mo dfozrntz) {moj z|rbmolt noj fplo {nzlr d|rrloz
z|rbmolt t|dh nt zhftl thf{o mo Amkt/ > noj 2 |zmimtl zhl cmolzmd lolrk} fa n efqmok ai|mj
jmrldzi}/ Blz{llo zhltl lxzrlelt) Jnrrml|t S>;U prfpftlj pindmok z|rbmolt mo j|dzt zf
n|keloz zhl pf{lr lxzrndzlj arfe n kmqlo tmwlj z|rbmol/
Bi|l Lolrk} Dnonjn hnt prfpftlj z{f qnrmnozt fo zhmt zhlel7 n tmokil z|rbmol dno bl pindlj
mo n j|dz mo fplo aif{ {mzhf|z fbtzr|dzmok zhl arll aif{ fa {nzlr nrf|oj zhl motzniinzmfo) fr
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zmjni pnplr >1%08%04 :
nizlronzmqli} zhlmr prfpftlj zmjni alodl (Amk/4- afrdlt nii fa zhl aif{ zf pntt zhrf|kh zhl
z|rbmolt/ Zhl} hnql prfpftlj no nebmzmf|t tdhlel zf b|mij n zmjni alodl ndrftt n tzrnmz noj
|tl n inrkl o|eblr fa qlrzmdni nxmt z|rbmolt zf prfj|dl |p zf 2200 E[ S:) >2U/ Rldlozi}
fzhlr frknomwnzmfot hnql nitf bllo moqltzmknzmok zhmt dfodlpz/ Pfozn noj J|zz S>8U hnql zltzlj
qnrmf|t prfamilt afr n dhnooliimok jlqmdl fr j|dz zf modrlntl zhl nqnminbil prltt|rl jrfp noj
aif{ qlifdmz} zhrf|kh n drftt%aif{ z|rbmol/ Zlne{frc Zldhofifk}t Zfdnrjf z|rbmol S>=U)Amk/: mt no lxnepil fa n j|dzlj nxmni aif{ z|rbmol/
Amk/4/ Zmjni alodl dfodlpz S:U/ Amk/:/ J|dzlj nxmni aif{ z|rbmol S>=U/
:/ Njqnoznklt fa j|dzlj z|rbmolt
Zhlrl nrl tlqlrni prndzmdni njqnoznklt mo pindmok zhl z|rbmol mo n j|dz/
>/ Mo nrlnt {hlrl zhlrl mt n jnoklr fa jmqlrt noj&fr aifnzmok jlbrmt blmok jrn{o mozf zhl
z|rbmol) n krmj df|ij bl pindlj fo zhl |ptzrlne fplomok) zh|t rlj|dmok jnoklr zf imal noj
jnoklr fa jnenkmok fr difkkmok zhl z|rbmol/
2/ Zhl j|dz thnjlt zhl z|rbmol mztlia arfe jmrldz t|oimkhz) noj {llj krf{zh {mii zhlrlb} bl
rlj|dlj/ Nifok {mzh aifnzmok jlbrmt) zhmt {nt fol fa zhl engfr prfbilet lxplrmlodlj b}
T{lotfo mo hmt {frc fo zmjni z|rbmolt mo zrfpmdni {nzlrt olnr Jnr{mo (T{lotfo) >===-/
4/ N inrkl j|dz enjl fa if{ dftz enzlrmnit dno bl jltmkolj tf zhl jf{otzrlne tmjl ndzt nt n
jmaa|tlr noj rlj|dlt zhl jf{otzrlne prltt|rl) zhlrlb} modrlntmok zhl nqnminbil prltt|rl
jrfp) jrn{mok mo efrl aif{ noj modrlntmok zhl pf{lr f|zp|z fa n kmqlo tmwlj z|rbmol/ P|z
nofzhlr {n}) inrkl aif{ nrln dfoznmomok n inrkl nef|oz fa lolrk} mt dfodlozrnzlj mozf n
teniilr nrln tf zhnz n teniilr) if{lr dftz z|rbmol dno bl |tlj afr n kmqlo pf{lr f|zp|z/
Bldn|tl n teniilr z|rbmol mo n antzlr aif{ tpmot antzlr) zhl zfr~|l afr n kmqlo pf{lr f|zp|z
mt iltt noj n teniilr) if{lr dftz klnrbfx dno bl |tlj/ Zhmt mt n hmkhi} tmkomamdnoz andzfr
tmodl aif{ qlifdmzmlt noj hlodl z|rbmol tplljt nrl if{ noj qlr} inrkl zfr~|l mt rl~|mrlj zf
prfj|dl |tla|i nef|ozt fa pf{lr/
:/ Zhl j|dz limemonzlt zmp ifttlt fo nxmni aif{ z|rbmol binjlt) meprfqmok laamdmlod}
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zmjni pnplr >1%08%04 %2 arfe {hmdh zhl} ltzmenzlj zhnz no n|keloznzmfo andzfr |p zf nbf|z < df|ij bl
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zmjni pnplr >1%08%04 1
ndhmlqlj mo n j|dzlj drftt%aif{ {nzlr z|rbmol/ Hf{lqlr zhl} hnql ofz jmtd|ttlj zhl jmaa|tlr
dfodlpz ofr p|bimthlj no} lxplrmelozni jnzn mo zhl imzlrnz|rl/
Rmlkilr S24U thf{lj zhnz zhl zhlfrlzmdni enxme|e pf{lr dflaamdmloz afr n jmaa|tlr%
n|kelozlj z|rbmol bntlj fo z|rbmol nrln mt >/=1) m/l/ 4/4 zmelt hmkhlr zhno zhl Blzw imemz/ Zhmt
mt pfttmbil bldn|tl aif{ mt jrn{o mo arfe n krlnzlr nrln |ptzrlne zhno zhnz mozlrdlpzlj b} zhltnel tmwlj z|rbmol mo fplo aif{/
Nazlr e|dh lxplrmeloznzmfo {mzh {moj z|ooli efjlit) Kmiblrz noj Afrleno S2:U rlpfrzlj n
pf{lr n|keloznzmfo andzfr fa :/2< afr n z|rbmol {mzh n jmaa|tlr) m/l/ mz prfj|dlj :/2< zmelt nt
e|dh pf{lr nt zhl tnel z|rbmol mo fplo aif{/ Zhl} |tlj tifzt (Amk/1- zf jrn{ mo hmkh lolrk}
aif{ arfe f|ztmjl zhl jmaa|tlr afr bf|ojnr} in}lr dfozrfi noj {lrl nbil zf ndhmlql zhmt rlt|iz
{mzh n thfrz) {mjl nokil jmaa|tlr) n e|dh efrl ldfofemdni nrrnokleloz zhno zhl ifok
jmaa|tlrt tz|jmlj b} n o|eblr fa fzhlr moqltzmknzfrt/
Amk/1/ Thfrz) {mjl nokil jmaa|tlr {mzh tifzt afr bf|ojnr} in}lr dfozrfi S2;U/
Zhlmr elnt|rlj n|keloznzmfo andzfr fa :/2< mt ofz modfotmtzloz {mzh Rmlkilrt zhlfrlzmdni
amojmok bldn|tl zhl z|rbmol zhl} |tlj hnj |oz{mtzlj binjlt fa if{ ntpldz rnzmf noj mztplrafrenodl mo fplo aif{ {f|ij hnql bllo {lii blif{ zhl Blzw imemz/
Mz hnt bllo tzrfoki} nrk|lj b} Jrolr S2
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zmjni pnplr >1%08%04 ;
Mo dfozrntz zf {moj z|rbmolt) zhl enxme|e ifnjt fo n enrmol d|rrloz z|rbmol dno bl
ndd|rnzli} prljmdzlj noj nrl mo zhl tnel frjlr nt ofreni fplrnzmok ifnjt/ A|rzhlr) n enrmol
d|rrloz z|rbmol j|dz dno bl enjl ol|zrnii} b|f}noz tf zhnz mzt {lmkhz ollj ofz bl t|ppfrzlj
b} n zf{lr/ Mz dno bl |tlj zf t|ppfrz zhl z|rbmol noj dno bl effrlj tf zhnz mz frmlozt mztlia
mozf zhl d|rrloz imcl n bfnz nz nodhfr/ Mz dno zhlrlafrl bl nrk|lj zhnz Jrolrt drmzmdmtet nrlofz nppimdnbil zf enrmol d|rrloz z|rbmolt/
1/ Lxplrmelozni {frc
Lxplrmelozni {frc mt blmok |ojlrznclo mo dfog|odzmfo {mzh Zmjni Lolrk} Pz} Izj fa Pnie
Blndh) ^|llotinoj) mo tlqlrni tznklt7
(m- efjli plrafrenodl zltzmok mo n ai|el
(mm- aif{ qmt|nimtnzmfo fo n aif{ znbil
(mmm- efjli plrafrenodl zltzmok mo n zf{ znoc
(mq- prfzfz}pl zltzmok |ojlr n efzfr%jrmqlo pfozffo mo tzmii {nzlr(q- prfzfz}pl zltzmok |ojlr n effrlj pfozffo mo n d|rrloz/
Mo >=== n 0/2 x 0/: e drftt aif{ z|rbmol {nt zltzlj mo z{f j|dzt fa pnrnbfimd prfamil mo n
ai|el nz zhl ^|llotinoj Kfqlroeloz H}jrn|imdt Inbfrnzfrmlt nz Jlnkfo mo Brmtbnol/
Bldn|tl qlr} tenii Jnrrml|t z|rbmolt jf ofz klolrnii} tlia%tznrz 21) n Tnqfom|t rfzfr {nt
|tlj/ Zhl nme {nt zf nttltt zhl n|keloznzmfo andzfr rnzhlr zhno zf jlefotzrnzl enxme|e
fqlrnii laamdmlod}) noj zhl dhnrndzlrmtzmdt fa Tnqfom|t rfzfrt nrl {lii cof{o/ Nizhf|kh zhltl
zltzt mojmdnzlj tfel n|keloznzmfo mz {nt jmaamd|iz zf ~|nozma} zhl laaldz nt zhl z|rbmol {nt ofz
zltzlj {mzhf|z n j|dz noj blnrmok armdzmfo {nt tmkomamdnoz/
Aif{ znbil zltzt {lrl t|btl~|lozi} dfoj|dzlj fo qnrmf|t z{f%jmelotmfoni j|dz prfamilt zf
qmt|nimtl ~|nimznzmqli} zhl laaldz fa zhl prfamil fo zhl aif{ pnzzlro/ Mo pnrzmd|inr {l {lrl
mozlrltzlj mo zhl pfttmbmimz} fa lohnodmok zhl bf|ojnr} in}lr dfozrfi laaldz jlefotzrnzlj b}
Afrleno noj Kmiblrz S2;U) b} |tmok ainpt fr tinzt fa nlrfafmi prfamil/ Zhltl zltzt thf{lj
dilnri} hf{ zhl j|dz jrn{t mo zhl |ptzrlne aif{ (Amk/;-/
Amk/;/ Aif{ znbil j}l zrndlt thf{mok aif{ jrn{o mo |ptzrlne (fo ilaz-/
Hf{lqlr zhl Rl}ofijt o|eblrt {lrl if{ noj aif{ {nt inemonr/ Mz mt {lii%cof{o zhnz
nlrfafmit plrafre pffri} mo inemonr aif{) noj zhl jmaa|tlr laaldz fa zhl jf{otzrlne pnrz fa zhl
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zmjni pnplr >1%08%04 8
j|dz mt tmeminr zf zhl ndzmfo fa n {mok tldzmfo mo zhnz mz e|tz jlaildz zhl aif{/ Dfotl~|lozi}
zhltl zltzt jmj ofz dfodi|tmqli} jlefotzrnzl jmaa|tlr ndzmfo/ Mo andz z{f jmaa|tlr prfamilt
bntlj fo zhftl thf{o mo Afrleno noj Kmiblrzt pnzloz tpldmamdnzmfo dfepilzli} anmilj zf
jlefotzrnzl jmaa|tlr ndzmfo/
Zf{ zltzt {lrl zhlo dfoj|dzlj fo n 280 ee jmnelzlr nxmni aif{ z|rbmol zf dfepnrl zhlpf{lr noj laamdmlod} fa zhl bnrl z|rbmol {mzh zhnz fa zhl z|rbmol mo qnrmf|t z}plt fa j|dz/
Tmodl zhl nme {nt zf dfepnrl zhl plrafrenodl fa zhl bnrl z|rbmol {mzh zhnz fa zhl tnel
z|rbmol mo n j|dz) zhl lxndz jmelotmfot fa zhl z|rbmol {lrl ofz mepfrznoz/ Zhl mepliilr fa n
jltc ano {nt |tlj nt n z|rbmol/ N tinzzlj j|dz fa rldznok|inr tldzmfo {nt |tlj nt mz mt lntmlr zf
dfotzr|dz zhno fol fa dmrd|inr tldzmfo) noj n zrnotmzmfo j|dz {nt |tlj blz{llo zhl dmrd|inr
thrf|j nrf|oj zhl z|rbmol noj zhl rldznok|inr jmaa|tlr pfrzmfo/ Rlt|izt pifzzlj mo Amk/8 thf{
npprfxmenzli} ;0, modrlntl mo f|zp|z {mzh n tifzzlj jmaa|tlr/
dfepnrmtfo fa fplo noj j|dzlj z|rbmol laamdmlod}
0
>0
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40
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laamdmlod})
,
j|dzlj
fplo
Amk/ 8/ Plrafrenodl fa efjli nxmni aif{ z|rbmol {mzh noj {mzhf|z jmaa|tlr/
N >/2 e jmnelzlr Jnrrml|t z|rbmol {nt zhlo dfotzr|dzlj {mzh 4 tzrnmkhz) >/2 e ifok ambrlkintt
binjlt fa >00 ee dhfrj ilokzh noj AX 14%>4; tldzmfo/ Zhmt tldzmfo {nt tlildzlj nt mz kmqlt n
kffj dfebmonzmfo fa tzr|dz|rni tzrlokzh noj hmkh imaz zf jrnk rnzmf nz if{ Rl}ofijt o|eblrt
(Tlimk lz ni) >====8-/ Zhl o|eblr fa binjlt {nt t|btl~|lozi} modrlntlj zf : noj binjlt {lrl niif{lj zf
pmzdh) momzmnii} zhrf|kh 0) zf kmql efrl lqlo zfr~|l/ \oimcl n {moj
z|rbmol) zhl molrzmn fa zhl rfzfr mt ofz lof|kh zf lqlo f|z zfr~|l ai|dz|nzmfot nt zhl z|rbmol
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8/6/2019 Developments in ducted water current turbines
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zmjni pnplr >1%08%04 =
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fa
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8/6/2019 Developments in ducted water current turbines
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zmjni pnplr >1%08%04 >0
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8/6/2019 Developments in ducted water current turbines
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zmjni pnplr >1%08%04 >>
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zmjni pnplr >1%08%04 >2
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