greserves,needforinternalenergysecurity,campaignbyactivists
in greenenergytechnologiesagainsttheuseofnuclearpowerand
generalpublicawarenessoftheeffectsoftheconversionand
usage ofconventionalenergysourcesontheenvironment [1–5].
The useoffossil-fuelledenginesandruralelectrification had
replaced theuseofwindenergy,whichhadbeenatthecoreof
rural economysincemedievalperiod [1]. Renewedbutshortlived
interestinwindenergybeganasaresultofenergysupplyshortage
during thesecondworldwar [5,6]. Thesuddenescalationinthe
price ofoilespeciallyaftertheenergy-crisisof1973–1974revived
interestinwindenergyandgovernmentsincreasedfunding
towardsresearch,developmentanddemonstrationofwindenergy
technologies [1,6]. Todatewindenergyisthefastestgrowing
source ofelectricity [7].
Although thegenerationofelectricityfromwindcanbenoisy,
it isenvironmentallyfriendlyinthesensethatthereisnoemission
of carbondioxideandothergreenhousegases.Therefore,theuse
of windenergycouldhelpinabatingglobalwarmingandmiti-
gating climatechangeandthishasbeenthemaindriverforusing
wind energyfromthe1990s [8]. However,thereislimiteduptake
of thetechnologyinmostpartsoftheworldduetolowwind
speed thatcharacterisesmanypartsoftheworld [9].
Low windspeedsresultsinlessenergyperunitvolumeofair
passing throughaturbine.Thisleadstohigherelectricitypro-
duction costfromwindenergythanfromfossilfuels [3]. Inorder
for windtechnologytocompetewithconventionalsourcesof
energy intermsofenergyproductioncosts,researchersare
workingondifferentwaystoincreasetheenergydensityinwind
and thereforeaugmentwindturbinepoweroutput [3]. Con-
centratorAugmentedWindTurbines(CAWTs)havebeenthought
to beoneofthewaystoaugmentwindturbinepoweroutputand
hence improvethecosteffectivenessofwindenergy.Thisconcept
involvesenclosingthewindturbinerotorwithaductthatreduces
in cross-sectionalareadownstreamoftheblade-planeandhence
increasingmass flow ratethroughtheturbine [2,9–13].
This workaimstogiveareviewoftheoreticalandexperimental
studies doneonCAWTs.Groupingthisinformationmayhelp
researchersunderstandresearcheffortsbyotherresearchersand
identify knowledgegapsinthe field. Hence,theymaycomeup
with areasoffurtherresearchuntilwindenergytechnologies
become suitablecontendersofconventionalenergytechnologies.
greserves,needforinternalenergysecurity,campaignbyactivistsin greenenergytechnologiesagainsttheuseofnuclearpowerandgeneralpublicawarenessoftheeffectsoftheconversionandusage ofconventionalenergysourcesontheenvironment [1–5].The useoffossil-fuelledenginesandruralelectrification hadreplaced theuseofwindenergy,whichhadbeenatthecoreofrural economysincemedievalperiod [1]. Renewedbutshortlivedinterestinwindenergybeganasaresultofenergysupplyshortageduring thesecondworldwar [5,6]. Thesuddenescalationintheprice ofoilespeciallyaftertheenergy-crisisof1973–1974revivedinterestinwindenergyandgovernmentsincreasedfundingtowardsresearch,developmentanddemonstrationofwindenergytechnologies [1,6]. Todatewindenergyisthefastestgrowingsource ofelectricity [7].Although thegenerationofelectricityfromwindcanbenoisy,it isenvironmentallyfriendlyinthesensethatthereisnoemissionof carbondioxideandothergreenhousegases.Therefore,theuseof windenergycouldhelpinabatingglobalwarmingandmiti-gating climatechangeandthishasbeenthemaindriverforusingwind energyfromthe1990s [8]. However,thereislimiteduptakeof thetechnologyinmostpartsoftheworldduetolowwindspeed thatcharacterisesmanypartsoftheworld [9].Low windspeedsresultsinlessenergyperunitvolumeofairpassing throughaturbine.Thisleadstohigherelectricitypro-duction costfromwindenergythanfromfossilfuels [3]. Inorderfor windtechnologytocompetewithconventionalsourcesofenergy intermsofenergyproductioncosts,researchersareworkingondifferentwaystoincreasetheenergydensityinwindand thereforeaugmentwindturbinepoweroutput [3]. Con-centratorAugmentedWindTurbines(CAWTs)havebeenthoughtto beoneofthewaystoaugmentwindturbinepoweroutputandhence improvethecosteffectivenessofwindenergy.Thisconceptinvolvesenclosingthewindturbinerotorwithaductthatreducesin cross-sectionalareadownstreamoftheblade-planeandhenceincreasingmass flow ratethroughtheturbine [2,9–13].This workaimstogiveareviewoftheoreticalandexperimentalstudies doneonCAWTs.Groupingthisinformationmayhelpresearchersunderstandresearcheffortsbyotherresearchersandidentify knowledgegapsinthe field. Hence,theymaycomeupwith areasoffurtherresearchuntilwindenergytechnologiesbecome suitablecontendersofconventionalenergytechnologies.
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greserves, needforinternalenergysecurity, campaignbyactivists
ใน ofconventionalenergysourcesontheenvironment [1-5]. useoffossil-fuelledenginesandruralelectrification ได้แทนที่ theuseofwindenergy, whichhadbeenatthecoreof economysincemedievalperiod ชนบท [1] Renewedbutshortlived interestinwindenergybeganasaresultofenergysupplyshortage ระหว่าง thesecondworldwar [5,6] Thesuddenescalationinthe ราคา [1,6] Todatewindenergyisthefastestgrowing ofelectricity แหล่งที่มา [7]. แม้ว่า thegenerationofelectricityfromwindcanbenoisy, มัน isenvironmentallyfriendlyinthesensethatthereisnoemission ของ carbondioxideandothergreenhousegases.Therefore, นำไปประยุกต์ใช้ในการ windenergycouldhelpinabatingglobalwarmingandmiti- gating climatechangeandthishasbeenthemaindriverforusing energyfromthe1990s ลม [8] อย่างไรก็ตาม thereislimiteduptake ของ thetechnologyinmostpartsoftheworldduetolowwind thatcharacterisesmanypartsoftheworld ความเร็ว [9]. windspeedsresultsinlessenergyperunitvolumeofair ต่ำผ่าน throughaturbine.Thisleadstohigherelectricitypro- costfromwindenergythanfromfossilfuels duction [3] inorder สำหรับ windtechnologytocompetewithconventionalsourcesof พลังงาน thereforeaugmentwindturbinepoweroutput [3] con- centratorAugmentedWindTurbines (CAWTs) havebeenthought เพื่อ beoneofthewaystoaugmentwindturbinepoweroutputand เหตุ ข้าม sectionalareadownstreamoftheblade-planeandhence ไหล increasingmass ratethroughtheturbine [2,9-13]. นี้ workaimstogiveareviewoftheoreticalandexperimental ศึกษา ฟิลด์ knowledgegapsinthe ดังนั้น theymaycomeup กับ areasoffurtherresearchuntilwindenergytechnologies กลายเป็น suitablecontendersofconventionalenergytechnologies
การแปล กรุณารอสักครู่..
greserves needforinternalenergysecurity campaignbyactivists , ,ใน greenenergytechnologiesagainsttheuseofnuclearpowerandgeneralpublicawarenessoftheeffectsoftheconversionandการใช้ ofconventionalenergysourcesontheenvironment 1 – [ 5 ]การ useoffossil fuelledenginesandruralelectrification มีแทนที่ theuseofwindenergy whichhadbeenatthecoreof ,ชนบท economysincemedievalperiod [ 1 ] renewedbutshortlivedinterestinwindenergybeganasaresultofenergysupplyshortageในช่วง thesecondworldwar [ 5 , 6 ] thesuddenescalationintheราคา ofoilespeciallyaftertheenergy-crisisof1973 – 1974revivedinterestinwindenergyandgovernmentsincreasedfundingtowardsresearch developmentanddemonstrationofwindenergy ,เทคโนโลยี [ 1,6 ] todatewindenergyisthefastestgrowingแหล่งที่มาเพื่อ [ 7 ]แม้ว่า thegenerationofelectricityfromwindcanbenoisy ,มัน isenvironmentallyfriendlyinthesensethatthereisnoemissionของ carbondioxideandothergreenhousegases ดังนั้น การใช้windenergycouldhelpinabatingglobalwarmingandmiti - ของหลักการ climatechangeandthishasbeenthemaindriverforusingลม energyfromthe1990s [ 8 ] อย่างไรก็ตาม thereislimiteduptakeของ thetechnologyinmostpartsoftheworldduetolowwindความเร็ว thatcharacterisesmanypartsoftheworld [ 9 ]windspeedsresultsinlessenergyperunitvolumeofair ต่ำthroughaturbine.thisleadstohigherelectricitypro - ผ่านการผลิต costfromwindenergythanfromfossilfuels [ 3 ] ต่อไปสำหรับ windtechnologytocompetewithconventionalsourcesofresearchersare intermsofenergyproductioncosts พลังงานworkingondifferentwaystoincreasetheenergydensityinwindและ thereforeaugmentwindturbinepoweroutput [ 3 ] คอน -centratoraugmentedwindturbines ( cawts ) havebeenthoughtเพื่อ beoneofthewaystoaugmentwindturbinepoweroutputandดังนั้น thisconcept improvethecosteffectivenessofwindenergy .involvesenclosingthewindturbinerotorwithaductthatreducesใน sectionalareadownstreamoftheblade planeandhence ข้ามincreasingmass ไหล ratethroughtheturbine 2,9 – [ 13 ]นี้ workaimstogiveareviewoftheoreticalandexperimentalการศึกษา groupingthisinformationmayhelp doneoncawts .researchersunderstandresearcheffortsbyotherresearchersandระบุ knowledgegapsinthe ฟิลด์ ดังนั้น theymaycomeupกับ areasoffurtherresearchuntilwindenergytechnologiesเป็น suitablecontendersofconventionalenergytechnologies .
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