micropower electrostatic generator meg

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  • 7/25/2019 Micropower Electrostatic Generator Meg

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    MICROPOWER ELECTROSTATIC GENERATOR MEG

    Nowadays, micro power generators tat ar!est !i"ration

    energy and can "ecome power so#rces $or wire%ess sensors and

    porta"%e app%ications are drawing m#c attention &'()*+ Tere

    are tree common mecanisms pie-oe%ectric, e%ectromagnetic,

    and e%ectrostatic, eac o$ wic as !ario#s e.amp%es reported

    in %iterat#re+ Te pro"%em tat eac approac m#st address is

    tat %ow $re/#ency !i"ration s#c as #man motion is on%y

    s#0cient to generate an e.treme%y %ow o#tp#t o$ power+ To

    o!ercome tis di0c#%t ca%%enge, we de!e%oped a new

    e%ectrostatic micro power generator tat '1 can ena"%e "ot

    separation gap contro% and %ong(range mo!ement at %ow

    $re/#ency, and 21 can increase te n#m"er o$ times power

    generation 3e%ectrostatic ind#ction1 is done+ To acie!e tese

    we de!e%oped te $o%%owing tecno%ogies '1 a micro power

    generator consisting o$ micro"a%% "earings to ro%% wit te

    separation gap contro% and to 4rm%y 5eep te separation gap

    3Microact#ator #sing micro"a%% "earing as "een reported &6*1,

    and 21 a new e%ectret str#ct#re to accommodate

    miniat#ri-ation+

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    Magno.

    Magnoxis a now(o"so%ete type o$ n#c%ear power reactor,

    wic was designed in te 7nited 8ingdom and was e.ported to

    oter co#ntries, "ot as a power p%ant and, wen operated

    according%y, as a prod#cer o$ p%#toni#m$or n#c%ear weapons+

    Te name magnoxcomes $rom te magnesi#m(

    a%#mini#ma%%oy#sed to c%ad te $#e% rods inside te reactor+

    Magno. reactors are press#rised, car"on

    dio.idecoo%ed, grapite moderatedreactors #sing nat#ra%

    #rani#m3i+e+, #nenriced1 as $#e% and magno. a%%oy as $#e%

    c%adding+ 9oron(stee% contro% rods were #sed+ Te design was

    contin#o#s%y re4ned, and !ery $ew #nits are identica%+ Ear%y

    reactors a!e stee% press#re !esse%s, wi%e %ater #nits

    3O%d"#ryand Wy%$a1 are o$ prestressed concrete: some are

    cy%indrica% in design, "#t most are sperica%+ Wor5ing press#re

    !aries $rom ;+< to '

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    9IOMASS 7ELEB POWER PLANT

    A new generation o$ sma%% sca%e 3%ess tan 2 MWe1 "iomass

    $#e%ed, power p%ants are "eing de!e%oped "ased on a gas

    t#r"ine 39rayton cyc%e1 prime mo!er+ Tese power p%ants are

    e.pected to increase te e0ciency and %ower te cost o$

    generating power $rom $#e%s s#c as wood+ Te new power

    p%ants are a%so e.pected to economica%%y #ti%i-e ann#a% p%ant

    growt materia%s 3s#c as rice #%%s, cotton gin tras, n#t se%%s,

    and !ario#s straws, grasses, and anima% man#res1 tat are not

    norma%%y considered as $#e% $or power p%ants+

    Tis paper s#mmari-es te new power generation concept wit

    empasis on te engineering ca%%enges presented "y te gas

    t#r"ine component+ Te maDor reasons $or consideration o$ te

    "iomass power option are 3'1 disposa% o$ "iomass resid#es

    com"ined wit te prod#ction o$ e%ectricity and eat, 321 power

    prod#ction $rom a"#ndant indigeno#s "iomass reso#rces, 3)1

    power $or remote %ocations ric in "iomass reso#rces, and 361 it

    is a renewa"%e energy option+ Tis option as "een cosen $or

    many app%ications+ In te 7+S+ tere is an estimated ; MWe

    o$ wood("ased generating capacity tat is dispatca"%e 3Neos

    Corporation, '