Imwe nzira inoshanda, inochengetedza simba, yakasvibira, uye inotakurika yekutonhodza ndiyo nzira yekuongorora kusingaverengeki kwevanhu.Munguva pfupi yapfuura, chinyorwa chepamhepo mupepanhau reSainzi chakashuma nezvehutsva hunyoro hwefiriji hwakawanikwa neboka rekutsvakurudza rakabatana revasayendisiti vekuChina neAmerica - "torsional heat firiji".Chikwata chekutsvagisa chakawana kuti kushandura twist mukati mefibers kunogona kutonhora.Nekuda kwepamusoro pefiriji kunyatsoshanda, hukuru hudiki, uye kushanda kune akasiyana akajairwa zvinhu, "yakamonyoroka kupisa firiji" yakagadzirwa zvichienderana nehunyanzvi uhu yave zvakare inovimbisa.
Kubudirira uku kunobva mukutsvagisa kwakabatana kwechikwata chaProfessor Liu Zunfeng kubva kuState Key Laboratory yeMedicinal chemistry Biology, Chikoro cheFarmacy, uye Key Laboratory yeFunctional Polymer yeBazi reDzidzo yeNankai University, nechikwata chaRay H. Baugman. , purofesa weTexas State University, Dallas Branch, uye Yang Shixian, Docent weNankai University.
Ingodzikisira tembiricha uye kuimonyorora
Zvinoenderana nedata kubva kuInternational Refrigeration Research Institute, mashandisirwo emagetsi emhepo maconditioner uye mafiriji munyika parizvino anotora chikamu che20% chekushandiswa kwemagetsi pasi rose.Iyo inonyanya kushandiswa musimboti wekumanikidza mhepo firiji mazuva ano kazhinji ine Carnot inoshanda isingasviki makumi matanhatu muzana, uye magasi anoburitswa nemaitiro echinyakare mafiriji ari kuwedzera kudziya kwepasirese.Nekuwedzera kuri kuda kwefiriji nevanhu, kuongorora dzidziso nyowani dzefiriji uye mhinduro dzekuwedzera kuvandudza kushanda kwefiriji, kuderedza mitengo, uye kuderedza saizi yemidziyo yefiriji rave basa rekukurumidzira.
Rabha yechisikigo inoburitsa kupisa kana yakatambanudzwa, asi tembiricha inodzikira mushure mekudzosa.Chiitiko ichi chinonzi "elastic thermal refrigeration", iyo yakawanikwa pakutanga kwezana ramakore re19.Nekudaro, kuti uwane yakanaka yekutonhodza mhedzisiro, rabha inoda kutanga yakatambanudzwa kusvika 6-7 nguva pakureba kwayo yozodzoswa.Izvi zvinoreva kuti firiji inoda vhoriyamu yakakura.Uyezve, ikozvino Carnot kunyatsoshanda kwe "thermal firiji" yakaderera, kazhinji inenge 32%.
Kuburikidza ne "torsional cooling" tekinoroji, vaongorori vakatambanudza fibrous rabha elastomer kaviri (100% strain), ndokugadzirisa migumo yese nekuimonyorora kubva kumagumo kuita Superhelix chimiro.Zvakadaro, kukurumidza kusamonyoroka kwakaitika, uye tembiricha yerabha fiber yakadzikira ne15.5 degrees Celsius.
Mhedzisiro iyi yakakwirira kudarika yekutonhodza uchishandisa tekinoroji ye'elastic thermal refrigeration': rabha rakatambanudzwa kanomwe rinoita makondirakiti uye kutonhora kusvika pa12.2 degrees Celsius.Zvisinei, kana rabha rikamonyaniswa uye richiwedzerwa, robva rabudiswa panguva imwe cheteyo, 'torsional thermal refrigeration' inogona kutonhora kusvika pa16,4 degrees Celsius.Liu Zunfeng akataura kuti pasi pekutonhodza kwakafanana, huwandu hwerabha hwe "torsional thermal refrigeration" hunongova zvikamu zviviri muzvitatu zveiyo 'elastic thermal refrigeration' rubber, uye kushanda kwayo kweCarnot kunogona kusvika 67%, Kureba kupfuura musimboti wemhepo. compression refrigeration.
Mutsara wekuredza uye mutsara wemucheka unogonawo kutonhodzwa
Vatsvagiri vakazivisa kuti kuchine nzvimbo yakawanda yekuvandudza murabha se "torsional heat firiji" zvinhu.Semuenzaniso, rabha ine yakapfava mameseji uye inoda ma twist akawanda kuti iwane kutonhora kwakanyanya.Kumhanyisa kwayo kupisa kunononoka, uye nyaya dzakadai sekudzokorora kushandiswa uye kusimba kwechinhu chinoda kutariswa.Naizvozvo, kuongorora zvimwe zve "torsional firiji" zvinhu zvave nzira yakakosha yekufambisa kwechikwata chekutsvagisa.
Sezvineiwo, takaona kuti 'torsional heat cooling' chirongwa chinoshandawo pakuredza nemachira.Pakutanga, vanhu vaisaziva kuti zvinhu zvakajairika izvi zvinogona kushandiswa kutonhora, "Liu Zunfeng akadaro.
Vatsvagiri vakatanga kumonya aya akaomesesa polymer fiber uye vakagadzira chimiro chehelical.Kutambanudza helix kunogona kusimudza tembiricha, asi mushure mekudzoreredza iyo helix, tembiricha inoderera.
Kuedza kwacho kwakaona kuti uchishandisa tekinoroji ye "torsional heat cooling" tekinoroji, waya yakarukwa yepolyethylene inogona kudonha tembiricha ye5.1 degrees Celsius, ukuwo zvinhu zvacho zvichitambanudzwa nekuburitswa pasina kana shanduko yekushisa inoonekwa.Nheyo ye 'torsional heat cooling' yemhando iyi ye polyethylene fiber ndeyokuti panguva yekutambanudza chibvumirano, mukati mukati mehelix inoderera, zvichiita kuti kuchinja kwesimba.Liu Zunfeng akataura kuti zvinhu izvi zvakaomarara zvinogara kwenguva refu kupfuura shinda dzerabha, uye mwero wekutonhora unodarika werabha kunyangwe wakatambanudzwa pfupi.
Vatsvagiri vakaonawo kuti kushandisa tekinoroji ye "torsional heat cooling" kune nickel titanium shape memory alloys ine simba repamusoro uye nekukurumidza kupisa kupisa kunokonzeresa kutonhorera kurinani, uye kungoita kushoma kwakaderera kunodiwa kuti uwane kutonhora kukuru.
Semuenzaniso, nekumonyanisa waya ina nickel titanium alloy pamwe chete, tembiricha yakanyanya kudonha mushure mekusamonyoroka inogona kusvika 20.8 degrees Celsius, uye avhareji yekudonha kwetembiricha inogonawo kusvika 18.2 degrees Celsius.Izvi zvakatikwirira zvishoma pane kutonhora kwe17.0 degrees Celsius kunowanikwa pachishandiswa tekinoroji ye'thermal refrigeration'.Imwe firiji kutenderera inongotora anenge masekondi makumi matatu, "Liu Zunfeng akadaro.
Tekinoroji nyowani inogona kushandiswa mumafiriji mune ramangwana
Kubva pane tekinoroji ye "torsional heat firiji" tekinoroji, vaongorori vakagadzira firiji modhi inogona kutonhorera mvura inoyerera.Vakashandisa waya nhatu dzenickel titanium alloy sezvinhu zvekutonhodza, dzichitenderedza 0,87 revolutions per centimita kuwana kutonhora kwe7,7 degrees Celsius.
Kuwanikwa uku kuchine nzira refu yekuenda kusati kwatengeswa kwe'tified heat firiji', nemikana nematambudziko, "akadaro Ray Bowman.Liu Zunfeng anotenda kuti tekinoroji nyowani yefiriji yakawanikwa muchidzidzo ichi yakawedzera chikamu chitsva mumunda wefiriji.Ichapa nzira itsva yekuderedza kushandiswa kwesimba mumunda wefriji.
Chimwe chiitiko chakakosha mu "torsional heat firiji" ndechekuti zvikamu zvakasiyana zvefiber zvinoratidza tembiricha dzakasiyana, izvo zvinokonzerwa nekugoverwa kweperiodic kwehelix inogadzirwa nekumonyanisa fiber padivi pehurefu hwefiber.Vatsvakurudzi vakavhara pamusoro penickel titanium alloy waya neThermochromism coating kugadzira "torsional kutonhora" kushandura fiber.Munguva yekumisikidza uye kusamira, iyo fiber inopinda inodzoreredzwa yeruvara shanduko.Inogona kushandiswa semhando nyowani yechinhu chekunzwa kune kure kure optical kuyerwa kwefiber twist.Semuenzaniso, nekucherechedza kuchinja kwemavara neziso rakashama, munhu anogona kuziva kuti mabhindauko mangani akagadzirwa nechinhu chiri kure, inova sensor iri nyore."Liu Zunfeng akataura kuti zvichibva pamusimboti we" torsional kupisa kutonhora ", mamwe mafiber anogona zvakare kushandiswa kune akangwara anochinja mavara machira.
Nguva yekutumira: Jul-13-2023