Ukuthini lokukhetha i-ahu yezinkundla zedatha

Ukufunda ngamathuba ase-AHU: i-CRAC kusuka e-CRAH yokubuyisa isivumelwano yezinkundla zedatha

Amahluko amakhulu phakathi kwezixhobo ze-CRAC neze-CRAH ekusebenzeni nokudala

Iindlela zokulibala eziphatha ngazo i-Computer Room Air Conditioners (CRAC) kunye ne-Computer Room Air Handlers (CRAH) ziyahlukile kakhulu kusuka kwenye enye. Iinkcukacha ezilungileyo ze-CRAC zisebenza ngendlela efanayo nezilungileyo, zisebenzisa iintambo zenkokhelo yomoya. Umsebenzi uyaphathwa nguqukumba oluluhlaza okuthatha umthubi kumoya ophuthayo weservery. Ngakolunxweme, iinkcukacha ze-CRAH ziphatha indlela eyahlukileya ngamapipi ebomvu elihlanzekileyo. Xa umoya uguqula phantsi kwempipi, lubalwa ngaphandle kokudinga kokuguqula komoya emva koko. Okuqukithiwe kukho kuba i-CRAHs ingachaphazele ngqo kwiintsango-moto ezimbizayo, oku kuyakhiwa kube yimali engcono ngokubanzi. Xa sijonge idatha ngokwebaluleka kweziko, sifumana ukuba iinkcukacha ze-CRAC zixhomeke ekuphumeleni okungama-30% ngaphaya komoya nganye yobomi obulibalisayo abazenzela. Kulo meko ke, amaxesha aninzi ayadunda i-CRAH xa azisebenzisa iziseko ezikhulu apho ubaluleko kumele bukhokele.

Imizobo yesenzo: Nini kudinga ukukhetha i-CRAC kunakuCRAH emakhayishaneni edatha

Kumakhambi amaserver angamakhulu angaphansi kwe-500kW, izixhobo ze-CRAC zisebenza kahle kakhulu ngoba zilula ukufaka futhi zinezindleko ezincane kuqala, okwenzela ukuba kube yindima engcono xa kubuyekezwa imithombo ephakade. Ngokuphambene, izinhlelo ze-CRAH zidinga ukuhlawula okukhulu kuqala kodwa zibonakala kakhulu emathuleni amakhulu we-data apho isebenza sebala ikhweyintshi ingaphezu kwe-megawatt eyodwa. Lezi zinhlelo ezihlwayelwe ngamanzi zifaka lezi ziphumakala ezide ezikwi-server ngendlela efanelekile kunazo zonke ezenziwa ngamahawa, ikakhulukazi xa kusekelwe ekukhokezeni kwe-15 ukuya ku-30 kilowatts ngasinye isitsha. Izindleko ezizokuthunyelwa ngokuphindaphindiwe nokusebenzisa i-energy ngokuphindaphindiwa zazinzuzwa izindleko ezide esikubuyela kuzo. Kunezinkampani ezimala ngempumelelo nangeminyaka yokudibanisa. Bayavuma ukuthi i-CRAH ibophele izidingo zokulahlwa njalo bayesebenzisa i-CRAC ukulinda ngexesha apho kudingeka indlela entsha yokulahlwa. Le ndlela yokuseta kuvumela izinkampani ukuthi babe nezimali zokuthutha futhi zilungisele ngokuchanekile kuzo zonke izidingo zabo zoku-compute.

Ukuthi izixhobo zokuphatha amava (AHUs) zihlanganise ngokubanzi nezinye izixhobo ze-HVAC emazingeni edatha

Ukufumana imiphumo embalwa kusixhobo sokuphatha amava kuyaphakama ekujuleni kwabo ngokunempilo kuzo zonke izinqumo ezivalelweyo. Izixhobo ze-CRAC neze-CRAH zisebenza ngokugcwele xa zifakwe kumongo wokuphatha amava ongcono njengezidingo zokugcinwa komoya okwesibhedlela/omoya osafushane okukhululwa abantu bethetha ngazo. Ngokwesicwangciso sika-ASHRAE, le ndlela yokugcinwa kungakhathazeki ukuthuthuka kwezikhamva kusuka ku-25% ukuze kube ngu-40% emazingeni edatha. Lezi zixhobo azisemke ngaphandle. Kudingeka zixhumane nesixhobo sangcinga sesikolethi ukuze abasebenzisi bakwazi ukulungisa imithetho ngokusheshayo. Iziphumo ze-CRAH zihlangana ngokuvamile nesistima yamanzi ashishayo nezethekwane zokushisa, ngelixa i-CRACs zihlangana ngokuvamile ngezindlela zokucindezela. Xa konke kuhlangana ngempumelelo, sibona ukuthula okuningi kumzimba weserver, sikhupha umsebenzi owawiniwe, nokugcina lezimo eziphathelene nomusa owadingekayo abasebenzisa ukusebenzisa ngempumelelo.

Ukugcina Ubunzima kanye Nokubuyisela Ukusebenza Kwakhona Kwe-Data Center

Ukudizaina izinhlelo ze-AHU ngokuthi zibe yimali kanye nokukhathazeka okunciphisa impazamo

Iindawo zodidiweyo zenzakalo eziphumelelayo ngokupheleleyo zihlawula okanye ubunzima be-N+1 okanye 2N kwiindlela zazo zokuphatha amava (AHUs) ukuba ukulahlaza kuqhubele phambili nangona kungaphi lutho. Xa ingcindezi eyincinane yomgca wasekhatyhaleni iphulaphule, iindlela ezizimeleyo zifake izikhathi ukuze akukhathazeki ukudala kwamandla. Iinkundla ezihleliweyo njengeTier III okanye IV ziqinisekisa ixesha eliphumeleleyo phakathi kuka-99.98% ukuya ku-99.995% ngokunjalo, okunceda imithombo ukwanda imilione ngokuba ngayinyaniso yokudala kuseloxesha kungaba yimali engaphezulu kwezimali ezimilione. Ezinye iingcinga ezibalulekileyo nguququzelelo kunye nokugcina okusetyenziselwa yimbini indlela eahlukeneyo, iindlela zezilonda eahlukileyo ukuze ziphazamise amaphutha, ngelishwa nezigodi ephathelene njalo ekhangeleni indlela yazo zonke izinto. Zonke ezi ngcinga zisebenza ngokubanzi ukuze zenze izixhobo ezingavuvanga ngokungafuni ukuzisa umsebenzi wobomi bawo, kodwa sabelana abasebenzi bakwazi ukwenza utshintsho ngaphandle kokucima konke.

Ukulungiselela ubunzima nobubi bomoya kwiindlela zokuphatha amava

Ukufumana ubunzima ngaphandle kokuphazamisa ukusebenza kwezimali kungumongo ongcono abagcina bezifundo bahlala bathintana nalo. Izixhobo ezibizwa ngokuba yi-Variable frequency drives, okanye i-VFDs ngokubandakanya, zazikwenzela uhlaziyo kule ndlela. Lezi zixhobo zinokunciphisa isantya sefanathu xa kukhona inkohlako encinci yokuchazela, okusabalalisa izimali eziphazanyayo kusuku lwesithupha kumasenyoni amathupha angama-25 kuya kuma-30% xa ikhetho iphazanyayo. Imininingwane yezixhobo zokulawula amanzi enze indlela engaphezulu. Ngale miqondo, kuphela izinto ezidingekayo ezenza umsebenzi njengoko ukusebenza kakhulu kakhulu, kuthuthela lo mlando odingekayo esithi N+1 ubunzima ngelishweshwe kodwa futhi kuyakha isimo sokusebenzisa izimali, okanye iPUE kubo bonke abangayazi lokhu kushweshwe. Izixhobo zokulawula ezinezobuchwepheshe ziyakhulisa ngaphezu ngokuthi zilungise izixhobo zokugcina kuphela lapho izinkukhu ziyeza ngaphezulu kwezimo ezivikelekileyo. Izifundiso ezisebenzisa le zonke izindlela zihlala zibona izinyathelo ezijulile. Kunezikhungo ezimbili zodidi olunye ezilandelayo manje ebaleni iPUE phansi kuka-1.2, okuyinkinga ekhathazekile ngokuzenzakala ukuthi izilinganiso zodidi lukhuni liyasezingeni elingama-1.6 noma ngaphezulu.

Ukuvikela Inzuzo Yomthwalo Ne-PUE Ngokukhetha Kwe-AHU Ngendlela Ethathe Ubungako

Indlela Okhethwa Ngayo i-AHU Kuyiyimpacta Indlela Isetyenziselwa Umthwalo (PUE)

Ukukhetha i-Air Handling Units kunezimpact ethile kakhulu ku-Power Usage Effectiveness noma PUE, okwenzela ukuthi kubalwe kangakanani umoya wokusebenza kwenqwaba kusabalala kumqondo we-IT kunalokunye. Izinkundla zokulolanga zokugcina kuphela zibeka ama-30 ukuya ku-40 iphasenthi yesigaba somoya wokusebenza. Ngakho-ke ukuthola i-AHUs ezihle nezinezinhla zokutshintsha izilinganiso kanye nezimbhubhu ezigcinwa ngendlela elekthroniki kuyenzela isiphumo esikhulu. Lezi zinkundla zingasusa umoya oyinzima ngaphansi kwe-30 iphasenthi emva kwezinye izimo. Uma umoya ubambele endaweni abavulekayo kuzindlu zokugcina, lezi ziphumo ezikhulu azidingeki ukuba ziqale njalo, okwenzela ukuthi kusaveke umoya. Kuye ngalinye i-10 iphasenthi yokuncipha kokudinga kokulolanga, sizobona ngaphandle kwe-0.07 isiphumo se-PUE. Ukususwa kwezimali kusenzeka ngokujwayelekile uma kususwa kahle lezi zinkundla zokulahleka kuzindlu zedatha ngaphandle kokulahlekelwa kwesimo sokusebenza esisemthethweni.

Isibonelo: I-AHUs enezintosha ephumelelayo eqhamuka ukuze kuncipheke ku-PUE kuzindlu zedatha ze-Tier III

Indawo ephathelene nge-Tier III ikhona ukuthi isusa i-Power Usage Effectiveness (PUE) kusuka ku-1.62 ku-1.35 ngemva kweminyaka engu-18 kamva kubaqophelela ku-Air Handling Units entsha. Kungani okwakhiwe kakhulu? Babenzeke ukubekisa izinhlobo zokusebenza ngomshini otholakala, baphinde bakhusele izindlela zokuhlaza uhlaza oluncane futhi angalahlwe ngohlaza oluhleli. Izinombolo zibonakala ngendlela ethile futhi: umsebenzi wokulahlaza uhlaza wadonsela kabusha kuye kuye kakhulu kunesikhathi esifana no-28%, sithola inoma ngaphezulu kuka-$240k ngayinyanga, njengoba siphula amathambo okuphosha okulingana nokuthi uthintele izihlathi ezingu-85 eziphazanyayo emaphethelweni. Konke koko kwenziwa ngemuva kokugcina umbiko wokusebenza okumangalisayo we-99.982%. Ngakho ke, lapho kuyashintsha imigomo yezindawo zamanje, ukqophelela ekukhethweni kwezixhobo zokulahlaza uhlaza azisiseko kuphela kodwa futhi kwenza izinto ezimangalisayo kumculo.

Ukukhulu, Ukuthuthuka kanye Nokuplanisha Indawo Yokufaka i-AHU Ekugcineni Kuzo Zonke Izinkulungwane

Ukukhulu Okufanele Kwezindlela Zokulima i-AHU Ngemilo Yesivumelwano Esikhona Nasezakhiweni

Ukuthola isayizi engeyiyo yezixhobo zokuphatha amava kuyinzuzo uma sifuna ukuzivikela kwehluluko kwamandla nokugcina izinto zisebenze ngendlela efanelekileyo. Xa i-AHUs ingaphezulu, ziyeyona into ethi ziqhubeka zihlala ziquqa naseqhubekeni okwenzekayo kube lula kakhulu. Ngokwangaphandle, izixhobo ezingancinci azikwazi ukulawula ubute uzakhiwa xa kusuke kukhokelela ekungasebenzeni kwesistimu. Ukukhetha isayizi engempela kudinga ukubheka into eyenzelwa yi-equipment ye-IT ngoku kunye napho kungeke ibe ngaleso siminyaka esifanayo. Kusobala ukuba kunezilingo ezikhuphuka ngokuvuthi kamanje, ezinye ikhuphuka kangange 20kW ngalinye ilinga. Singafuna futhi ukubala izidingo zokunakekelwa njengezimo ze-N+1. Izifongo zokumonitora ngeminiyelo zivumela abagcini bezindlu ukuthi balingane amandla okulahla nobubi bokusebenza. Lokhu kwenziwa kancipha izindleko zokuthenga phakathi kwe-15% ne-30%, ngelishwa ukusebenza kufanelekile na kuqhubeke ngendlela efanelekile na xa izilingo zilula noma ziphezulu.

Ukudizaina kwezinhlayiya ze-AHU ezigunyazayo ukuze kube yimali indawo futhi ukwesekela ukuthuthana

Izinhlayiya zokugunyaza ze-AHU zinika izinketho ezincane nezithutha okufanele kuzo uma indawo ibukeka nje noma uma izikhalo ziya goduka. Izinhlayiya ezivulwe ngumthombo zingasetshenziswa ngeminyaka. Izimodi zokuqala zihandlela imfundo eyisisekelo, kodwa izinye zingafakwa emuva njengoba umsebenzi uphinde phezu. Okukhomba kakhulu kulezi zinhlayiya kukuthi ngalunye lwamamodi livulisela ngokwayo, ngakho-ke ukulungisa akusho kuphela konke. Futhi kusekela lokhu kcalled N+1 redundancy kwizikomponi ngalinye. Iziphawu zesimo sikamanga phakathi kwezimodi zenza ukuthi kube lula ukubeka phakathi kwezimali zakhiwa kusuku olwendulo nokuvuselela emuva uma kudinga. Ukuba ngu-modular kususa kangcono ama-35 kuze kube 40 iphasenthi yesikhathi sokufaka ngaphansi komthetho wasekuhlaleni. Ngaphezu kwalokho kumemeza amakhampani ukuthenga izixhobo eziningi kunazo manje, ukuphatha kapo ukuthuthana kwabo ngokulinganiselwe kuthengiselwa yigeseli.

Ukusebenzisa Imicibisholo Yempilo Nezobumnandi Zokuhlaza Kwintonga Kuhlaza Kwefayile ye-AHU

Ukuthunyelana kwe-AHUs ngezinhlelo zokubophelela eziphathelene (isibonelo, IDCM) yokuphathwa ngokushesha

Xa izigaba zokuphatha amavili azohlukaniswa kumathuba wezimali njenge-IDCM, angakwenza lezi zinguquko ngexesha eliqinile esifunayo kangaka manje. Le miqondo yamandla inemini yokulondoloza izinto ezifana nokulinganisa kwamandla, ukuba ziphi na iingcinezelo phakathi, kunye noko kutheni xa kufuna ukuguqula amaxabiso. Ngokwalo okubonwa, le miqondo itshintsha ngokuzenzekelayo ubude bezivivekeli kwaye ibuyekeze iindlela apho kudingeka. Okuqukitha kakhulu kukulo lunye olungaphantsi kwezigaba eziphumelelayo ezibala ngokwenzekayo xa kudinga ukusela kakhulu ngexesha elilodwa. Le fomile yokubala kunceda ukunciphisa umsebenzi wamandla ngaphezu kuka-30% ngokwemfundo eninzi. Iindawo ezininzi zedatha ezisebenzisile le zixhobo zizasitshilo ngokuba iimeko zabo zokusebenzisa amandla zihluka kwi-1.6 kuze kube ngu-1.4 ngexesha. Ukuba unemilo ephendula ngokukhawuleza koko kutheni kuyakufundisa kumntu onjalo ukuthutha ukuhlanjulwa ngelishishini kwaye akhulise isebenze ngazo zonke iingcinga zamanzi.

Umaqondo wokulungiselela ukudla kwe-AHU ngokunikezela inkabi yasekhanyini

Ukugcina umthwalo wamahili ngendlela ethile njengekuthinta ikhefu noma ukumelana kwemigwa yokuhlanya kumgcine amahili agcwele namahili athintayo ukuthi angaphakalati, okwakhiwa izikhala zokuhlahla ezi AHU kahle. Isinqumo siphakade: thelekisa amahili acindezelayo lapho kudingeka emasimini ekhanda, futhi uvule amahili apho ahlanya ngaphambi kokuba apandeke konke. Izelezelo ibonisa ukuthi le ndlela ingakhuphula ubunzima bokuhlanya phakathi kwe-25% noma ngisho ku-40%. Kulabo bonke abathola ukusebenzisa lezi zinhlelo, kukhona izinto ezimbalwa kufuneka zenzeke kuqala. Vula izindawo eziphansi kwezikhala ngokucophelela, funa izihlangothi ezingekho lapho izincolo azilayi ngokugcwele, futhi uziphathe izithuthi zezinkomo ezivikela inhlaka ngezansi. Faka futhi izinhlelo zokubophezela eziphucukileyo, futhi izifakelo ezirhayiyiwe ngamaTier III zingathinta ama-20% kumsebenzi owewushe. Le kombhinya isebenzisa kahle kuzindiza zodidi lokuchithwa okuphakeme ngaphandle kokuthinta imali kumindleko yamandla.

Imibuzo Evame Ukubuzwa

Kuthini okuthiwa nge-AHU emathuba e-HVAC?

I-AHU ithetha i-Air Handling Unit, into ebalulekile emthwakubeni wezinyawo e-HVAC ethintela ukulungiselela nokusabela kwezinyawo.

Yikuphi okuhlukene phakathi kwezinhlayiya ze-CRAC nezinhlayiya ze-CRAH?

Izinhlayiya ze-CRAC zisebenzisa izikhathi ze-refrigerant ukuze zishushu izinyawo, ngaphandle kwalokho izinhlayiya ze-CRAH zisebenzisa izinkuni zeshushu lapho lefilayithi ukuhlaba, lokhu kwenza i-CRAH kube yisidingo esiphakeme kakhulu.

Laphaya kufanele ikhaya le-data likhethi i-CRAH ngaphandle kwe-CRAC?

Izinhlayiya ze-CRAH zilungile kakhulu kumakhaya amakhulu we-data afuna ukusetshenziswa kwezimali eziningi kune-1 megawatt, zinikeza inkokhelo enhle kakhulu kumandla wamabhodi amadensiti futhi zibe nemfihlo enempilo.

Yikuphi okuthiwa nge-PUE futhi kubalulekani kanjani?

I-PUE noma I-Power Usage Effectiveness ichazela ubunjingi bezimali ekhaya le-data, ibonisa zimali ezimbi ziphathekayo ziye kuzimali eziphathekayo ngokuphelele yisikhala.