{"id":37785,"date":"2019-10-31T22:19:45","date_gmt":"2019-10-31T19:19:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kak-my-uporolis-po-energoeffektivnosti-mashzala\/"},"modified":"2019-10-31T22:19:45","modified_gmt":"2019-10-31T19:19:45","slug":"kak-my-uporolis-po-energoeffektivnosti-mashzala","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/kak-my-uporolis-po-energoeffektivnosti-mashzala","title":{"rendered":"Si e p\u00ebrmir\u00ebsuam efikasitetin energjik t\u00eb sall\u00ebs s\u00eb makinave","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"Si
\n
\nI dedicate this post to those people who lied on certificates, which almost led to us installing Bengal lights in our halls.<\/p>\n

This story is over four years old, but I'm publishing it now because the NDA has expired. Back then, we realized that we had nearly filled our data center (which we rent out), and its energy efficiency wasn't improving much. Previously, the hypothesis was that the more we filled it up, the better it would be, as the engineering load would be distributed among all. But it turned out that we were deceiving ourselves in this regard, and with good load, there were losses somewhere. We worked in many areas, but our brave team took on the cooling. <\/p>\n

The real life of a data center is somewhat different from the project. Constant adjustments by the operations team to improve efficiency and optimize settings for new tasks. Take the mythical average rack. In practice, it doesn't exist; the load distribution is uneven, it's dense in some areas and empty in others. So we had to readjust some things for better energy efficiency.<\/p>\n

Our Kompressor data center is needed for a variety of customers. Therefore, amidst regular two to four kilowatt racks, there can be quite a few 23-kilowatt ones or even more. Consequently, the air conditioning was set up to cool them, and air simply rushed past the less powerful racks. <\/p>\n

The second hypothesis was that warm and cold corridors do not mix. After measurements, I can say that this is an illusion, and real aerodynamics differs from the model by almost everything. <\/a><\/noindex><\/p>\n

Survey<\/h3>\n

\nInitially, we started looking at air flows in the halls. Why did we dive into this? Because we understood that the data center is designed for five to six kW per rack, but we knew that they actually ranged from 0 to 25 kW. Regulating all this with tiles is almost impossible: the first measurements showed that they pass almost the same amount. And there are no tiles for 25 kW, they shouldn't just be empty, but should have a liquid vacuum. <\/p>\n

We bought an anemometer and started measuring flows between racks and above them. In general, it should be used according to GOST and many standards, which are difficult to meet without stopping the machine hall. We were interested not in accuracy, but in the principle picture. That is, we measured approximately.<\/p>\n

Nga matjet e 100 p\u00ebrqind t\u00eb ajrit q\u00eb del nga pllakat, 60 p\u00ebrqind arrin n\u00eb stendat, nd\u00ebrsa pjesa tjet\u00ebr kalon p\u00ebrpara. Kjo ndodh sepse ka stenda t\u00eb r heavy 15\u201325 kW, p\u00ebr t\u00eb cilat \u00ebsht\u00eb nd\u00ebrtuar ftohja. <\/p>\n

Nuk mund t\u00eb fikim kondicioner\u00ebt, sepse n\u00eb stendat e ngrohta pran\u00eb server\u00ebve t\u00eb sip\u00ebrm do t\u00eb b\u00ebhet shum\u00eb nxeht\u00eb. N\u00eb at\u00eb moment kuptojm\u00eb se duhet t\u00eb izolojm\u00eb di\u00e7ka nga di\u00e7ka, q\u00eb ajri t\u00eb mos kaloj\u00eb nga rradha n\u00eb rradhe dhe q\u00eb shk\u00ebmbimi termik n\u00eb bllok t\u00eb ndodhte. <\/p>\n

Paralelisht me k\u00ebt\u00eb, shqet\u00ebsohemi n\u00ebse kjo \u00ebsht\u00eb e arsyeshme financiarisht. <\/p>\n

Me habi zbulojm\u00eb se konsumi i energjis\u00eb s\u00eb Qendrav\u00eb t\u00eb t\u00eb Dh\u00ebnave (QTD) n\u00eb t\u00ebr\u00ebsi e kemi, por p\u00ebr t\u00eb llogaritur fancoil-t p\u00ebr nj\u00eb sall\u00eb t\u00eb caktuar thjesht nuk mundemi. Pra, analitikisht mundemi, por n\u00eb fakt \u2014 jo. Dhe nuk jemi n\u00eb gjendje t\u00eb vler\u00ebsojm\u00eb kursimin. Detyra b\u00ebhet m\u00eb interesante e m\u00eb interesante. N\u00ebse kursejm\u00eb 10% t\u00eb fuqis\u00eb s\u00eb kondicioner\u00ebve \u2014 sa para mund t\u00eb kursejm\u00eb p\u00ebr izolim? Si ta llogarisim?<\/p>\n

Shkuam te automatizuesit, t\u00eb cil\u00ebt ishin p\u00ebrmir\u00ebsuar sistemin e monitorimit. Fal\u00eb djemve: t\u00eb gjith\u00eb sensor\u00ebt i kishin, na duhej vet\u00ebm t\u00eb shkruanim kod. Ata filluan t\u00eb nxjerrin ve\u00e7mas chillera, UPS, ndri\u00e7im. Me pajisjen e re u krijua mund\u00ebsia p\u00ebr t\u00eb par\u00eb si ndryshon situata sipas elementeve t\u00eb sistemit.<\/p>\n

Eksperimente me perde<\/h3>\n

\nParalelisht fillojm\u00eb eksperimente me perde (ndar\u00ebse). Vendosim t'i ngjisim ato n\u00eb stulat e kanaleve t\u00eb kabllove (m\u00eb shum\u00eb nuk kemi ku tjet\u00ebr t'i ngjisim), fatmir\u00ebsisht ato duhet t\u00eb jen\u00eb t\u00eb lehta. U dakord\u00ebsuam shpejt p\u00ebr \u00e7adra ose grepa. <\/p>\n

\"Si
\n
\n\"Si
\n
\nProblemi \u00ebsht\u00eb se m\u00eb par\u00eb kishim punuar me shum\u00eb furnizues. T\u00eb gjith\u00eb kan\u00eb zgjidhje p\u00ebr Qendrat e tyre t\u00eb t\u00eb Dh\u00ebnave, por p\u00ebr Qendrat e Dh\u00ebnave komerciale nuk ka zgjidhje t\u00eb gatshme n\u00eb thelb. Klient\u00ebt tan\u00eb hyjn\u00eb dhe dalin vazhdimisht. Ne jemi nj\u00eb nga pak Qendrat e 'r\u00ebnda' t\u00eb t\u00eb Dh\u00ebnave pa kufizim n\u00eb gjer\u00ebsin\u00eb e stendave me mund\u00ebsin\u00eb p\u00ebr t\u00eb pranuar k\u00ebto server\u00eb-g\u00ebrmues deri n\u00eb 25 kW. Nuk ka planifikim t\u00eb infrastruktur\u00ebs paraprakisht. Pra, n\u00ebse do t\u00eb marrim sisteme modulare t\u00eb kafazeve nga furnizuesit \u2014 gjithmon\u00eb do t\u00eb ket\u00eb boshll\u00ebqe p\u00ebr dy muaj. Pra, asnj\u00ebher\u00eb makina nuk do t\u00eb jet\u00eb n\u00eb thelb efikase energjitike. <\/p>\n

Vendos\u00ebm t\u00eb b\u00ebjm\u00eb vet\u00eb, fatmir\u00ebsisht kemi inxhinier\u00ebt tan\u00eb. <\/p>\n

E para, q\u00eb mor\u00ebm, ishin shirita nga frigorifer\u00ebt industrial\u00eb. K\u00ebto jan\u00eb ato l\u00ebnd\u00eb plastike fleksib\u00ebl, me t\u00eb cilat mund t\u00eb godas\u00ebsh. Gjithsigurisht i keni par\u00eb ndonj\u00ebher\u00eb n\u00eb hyrje t\u00eb seksionit t\u00eb mishit n\u00eb supermarketet m\u00eb t\u00eb m\u00ebdha. Filluam t\u00eb k\u00ebrkojm\u00eb materiale jo toksike dhe t\u00eb pa zjarrit. I gjet\u00ebm, e blejm\u00eb p\u00ebr dy rreshta. I var\u00ebm, filluam t\u00eb shohim se \u00e7far\u00eb po dalim. <\/p>\n

E dinim se do t\u00eb ishte disi e komplikuar. Por rezultoi shum\u00eb, n\u00eb t\u00eb v\u00ebrtet\u00eb shum\u00eb e komplikuar. Ata filluan, si makarona, t\u00eb fluturojn\u00eb n\u00eb rrjedhat. Gjet\u00ebm shirita magnetik\u00eb, si ato q\u00eb p\u00ebrdoren p\u00ebr frigorifer\u00eb. I ngjit\u00ebm n\u00eb k\u00ebto shirita, i ngjit\u00ebm nj\u00ebri me tjetrin, dhe muri rezultoi mjaft monolit. <\/p>\n

Filluam t\u00eb mendojm\u00eb se do t\u00eb ndodhte n\u00eb sall\u00eb. <\/p>\n

Shkuam te nd\u00ebrtuesit, u treguam projektin ton\u00eb. Ata shikojn\u00eb dhe thon\u00eb: l\u00ebvizjet tuaja jan\u00eb shum\u00eb t\u00eb r\u00ebnda. 700 kilogram\u00eb n\u00eb t\u00eb gjith\u00eb sall\u00ebn e makinerive. Shkoni, thon\u00eb, o njer\u00ebz t\u00eb mir\u00eb, n\u00eb djall. M\u00eb sakt\u00eb, te ekipi i SKS. Le t\u00eb llogarisin sa shtr\u00ebngime kan\u00eb n\u00eb kuti, sepse 120 kg p\u00ebr met\u00ebr katror \u00ebsht\u00eb maksimumi. <\/p>\n

SKS thot\u00eb: a e mbani mend, nj\u00eb klient i madh erdhi te ne? Ai kishte dhjet\u00ebra mij\u00ebra porta n\u00eb nj\u00eb sall\u00eb. N\u00eb an\u00ebt e sall\u00ebs s\u00eb makinerive ende \u00ebsht\u00eb n\u00eb rregull, por m\u00eb af\u00ebr krosov\u00ebs nuk do t\u00eb mund t\u00eb ngjitemi: kutit\u00eb do t\u00eb bien. <\/p>\n

Po ashtu, nd\u00ebrtuesit k\u00ebrkuan nj\u00eb sertifikat\u00eb p\u00ebr materialin. Dua t\u00eb theksoj q\u00eb deri at\u00ebher\u00eb kishim punuar n\u00eb fjal\u00ebn e nderit t\u00eb furnizuesit, ndoshta vet\u00ebm p\u00ebr nj\u00eb test. U drejtuam tek ky furnizues, e themi: OK, jemi gati t\u00eb kalojm\u00eb n\u00eb beta, le t\u00eb sjellim t\u00eb gjitha dokumentet. Ata na d\u00ebrgojn\u00eb di\u00e7ka t\u00eb defektshme. <\/p>\n

Them: d\u00ebgjoni, ku e gjet\u00ebt k\u00ebt\u00eb dokument? Ata: na e d\u00ebrgoi prodhuesi yn\u00eb kinez n\u00eb p\u00ebrgjigje t\u00eb k\u00ebrkesave. N\u00eb dokument thuhet se ky material nuk digjet fare. <\/p>\n

N\u00eb k\u00ebt\u00eb moment kuptuam se ishte koha t\u00eb ndalonim dhe t\u00eb verifikonim faktet. Shkuam te vajzat nga siguria e zjarrit t\u00eb Qendr\u00ebs t\u00eb t\u00eb Dh\u00ebnave, ato na treguan nj\u00eb laborator q\u00eb kontrollon digjen. \u00c7mimet dhe afatet ishin shum\u00eb t\u00eb arsyeshme (p\u00ebrkundrazi, e mallkuam t\u00eb gjith\u00eb derisa p\u00ebrgatit\u00ebm sasin\u00eb e duhur t\u00eb dokumenteve). Atje shkenc\u00ebtar\u00ebt thon\u00eb: sillni materialin, do t\u00eb b\u00ebjm\u00eb provat. <\/p>\n

N\u00eb p\u00ebrfundim u shkrua se nga nj\u00eb kilogram substance mbetet dhjet\u00eb gram pluhur. E gjith\u00eb e tjera digjet ndjesh\u00ebm, derdh\u00ebt dhe mb\u00ebshtet shum\u00eb mir\u00eb djegien n\u00eb nj\u00eb llak. <\/p>\n

Kuptojm\u00eb - \u00ebsht\u00eb mir\u00eb q\u00eb nuk blen\u00eb. Filluam t\u00eb k\u00ebrkojm\u00eb nj\u00eb material tjet\u00ebr. <\/p>\n

Gjet\u00ebm polikarbonatin. Ai doli t\u00eb ishte m\u00eb i fort\u00eb. Flet\u00eb transparente \u2014 dy mm, dyer \u2014 nga kat\u00ebr mm. N\u00eb thelb, kjo \u00ebsht\u00eb akril. S\u00eb bashku me prodhuesin fillojm\u00eb bised\u00ebn p\u00ebr sigurin\u00eb nga zjarri: le t\u00eb sillni certifikat\u00ebn. Ata e d\u00ebrgojn\u00eb. N\u00ebnshkruar nga e nj\u00ebjta institucion. Ne i telefonojm\u00eb atje, themi: \u00e7far\u00eb, shok\u00eb, a e keni testuar k\u00ebt\u00eb?<\/p>\n

Ata thon\u00eb: po, e kemi testuar. Fillimisht e dogj\u00ebm vet\u00eb, pastaj e soll\u00ebm p\u00ebr teste. Nga nj\u00eb kilogram materiale, n\u00ebse e djegim me flak\u00eb, mbeten rreth 930 gram pluhuri. Ai shkrin dhe pik\u00ebllon, por pusi nuk do t\u00eb digjet. <\/p>\n

Menj\u00ebher\u00eb kontrollojm\u00eb magnet\u00ebt tan\u00eb (ata jan\u00eb mbi nj\u00eb mb\u00ebshtetje polimeri). P\u00ebr habi, djegin keq. <\/p>\n

Nd\u00ebrtimi<\/h3>\n

\nNga kjo fillojm\u00eb t\u00eb mblidhemi. Polikarbonati \u00ebsht\u00eb i shk\u00eblqyer, sepse \u00ebsht\u00eb m\u00eb i leht\u00eb se polietileni, shum\u00eb m\u00eb keq p\u00ebr t'u palosur. Megjithat\u00eb, ata sjellin flet\u00eb 2,5 me 3 metra, dhe furnizuesit nuk u intereson se \u00e7far\u00eb t\u00eb b\u00ebjn\u00eb me k\u00ebt\u00eb. Na nevojitet 2,8 me 20\u201325 centimetra. Dyerat u d\u00ebrguan n\u00eb zyrat q\u00eb e presin flet\u00ebn si\u00e7 duhet. Nd\u00ebrsa lamelat i presim vet\u00eb. Procesi i prerjes \u00ebsht\u00eb dy her\u00eb m\u00eb i shtrenjt\u00eb se fleta.<\/p>\n

Ja \u00e7far\u00eb doli:<\/p>\n

\"Si
\n
\nRezultati \u2014 sistemi i keshikjes kthehet pas m\u00eb pak se nj\u00eb viti. Kemi kursyer rreth 200\u2013250 kWh vazhdimisht n\u00eb fuqin\u00eb e fan-coil-eve. Sa m\u00eb shum\u00eb n\u00eb chillers, sa sakt\u00eb \u2014 nuk e dim\u00eb. Server\u00ebt thithin me nj\u00eb shpejt\u00ebsi konstante, fan-coil-et fryjn\u00eb. Chillera ndizet dhe ndizet me ndihm\u00ebn e nj\u00eb grupe: \u00ebsht\u00eb e v\u00ebshtir\u00eb t\u00eb nxjerr\u00ebsh t\u00eb dh\u00ebna nga ajo. Nuk lejohet t\u00eb ndalosh dhom\u00ebn e makinave p\u00ebr teste. <\/p>\n

K\u00ebnaqemi q\u00eb n\u00eb at\u00eb koh\u00eb kishte nj\u00eb rregull p\u00ebr t\u00eb vendosur n\u00eb modulet 5x5 raftesh n\u00eb m\u00ebnyr\u00eb q\u00eb konsumimi i tyre mesatar t\u00eb ishte maksimumi gjasht\u00eb kW. K\u00ebshtu q\u00eb nxeht\u00ebsia nuk \u00ebsht\u00eb e p\u00ebrqendruar, por e shp\u00ebrndar\u00eb n\u00eb dhom\u00ebn e makinave. Por ka nj\u00eb situat\u00eb ku 10 pjese 15-kilovatsh jan\u00eb af\u00ebr, por p\u00ebrball\u00eb \u2014 ka magazin\u00eb. Ai \u00ebsht\u00eb i ftoht\u00eb. Balancohet.<\/p>\n

Atje ku nuk ka raft \u2014 nevojitet nj\u00eb mur deri n\u00eb dysheme. <\/p>\n

Dhe gjithashtu disa klient\u00eb tan\u00eb jan\u00eb t\u00eb izoluar me rrjeta. Kishim disa ve\u00e7ori me ta gjithashtu. <\/p>\n

P\u00ebr lamelat u pren\u00eb, sepse gjer\u00ebsia e raftit nuk \u00ebsht\u00eb fikse, nd\u00ebrsa periodiciteti i grupeve t\u00eb ngjit\u00ebsve \u00ebsht\u00eb i p\u00ebrcaktuar: gjithmon\u00eb do t\u00eb jet\u00eb tre-kat\u00ebr cm n\u00eb t\u00eb majt\u00eb ose t\u00eb djatht\u00eb. N\u00ebse keni nj\u00eb bllok 600 n\u00ebn vendin e raftit, ka nj\u00eb probabilitet 85 p\u00ebrqind q\u00eb ai nuk do t\u00eb vendoset. Dhe lamelat e shkurtra dhe t\u00eb gjata bashk\u00ebjetojn\u00eb dhe ngjiten. Nganj\u00ebher\u00eb i presim lamelat n\u00eb form\u00ebn e g\u00ebrm\u00ebs G sipas konturave t\u00eb raftit.<\/p>\n

\"Si
\n<\/p>\n

Sensor\u00eb<\/h3>\n

\nPara se p\u00ebr t\u00eb reduktuar fuqin\u00eb e fancoil-ave, duhej t\u00eb b\u00ebhej nj\u00eb monitorim shum\u00eb t\u00eb sakt\u00eb t\u00eb temperatur\u00ebs n\u00eb pika t\u00eb ndryshme t\u00eb sall\u00ebs, p\u00ebr t\u00eb mos u p\u00ebrballur me surpriza. K\u00ebshtu lind\u00ebn sensor\u00ebt pa tela. Me tela \u2014 p\u00ebr \u00e7do rresht duhej t\u00eb vendosej nj\u00eb gj\u00eb p\u00ebr kryq\u00ebzimin e k\u00ebtyre sensor\u00ebve dhe ndonj\u00ebher\u00eb mbi t\u00eb \u2014 zgjat\u00ebs. Kjo shnd\u00ebrrohet n\u00eb nj\u00eb varg. Shum\u00eb keq. Dhe kur k\u00ebto telat hyjn\u00eb n\u00eb qeliza, siguria menj\u00ebher\u00eb shqet\u00ebsohet dhe k\u00ebrkon t\u00eb shpjegojn\u00eb me nj\u00eb certifikat\u00eb se \u00e7far\u00eb po monitorohet p\u00ebrmes atyre telave. Duhet t\u00eb ruajm\u00eb nervat e siguris\u00eb. Te sensor\u00ebt pa tela, p\u00ebr ndonj\u00eb arsye nuk shqet\u00ebsohen. <\/p>\n

Dhe gjithashtu, rafte vijn\u00eb dhe shkojn\u00eb. Sensor\u00ebt me magnet jan\u00eb m\u00eb t\u00eb leht\u00eb p\u00ebr t'u rimontuar, sepse \u00e7do her\u00eb duhet t'i vendosni ata m\u00eb lart ose m\u00eb posht\u00eb. N\u00ebse serverat jan\u00eb n\u00eb tret\u00ebsir\u00ebn e poshtme t\u00eb rafteve \u2014 duhet t\u00eb vendosen posht\u00eb, dhe jo sipas standardit nj\u00eb met\u00ebr e gjysm\u00eb nga toka n\u00eb der\u00ebn e rafteve n\u00eb korridorin e ftoht\u00eb. Atje \u00ebsht\u00eb e padobishme t\u00eb mat\u00ebsh, duhet t\u00eb mat\u00ebsh at\u00eb q\u00eb ndodhet n\u00eb pajisje. <\/p>\n

Nj\u00eb sensor p\u00ebr tri rafte \u2014 shpesh nuk \u00ebsht\u00eb e nevojshme t\u00eb vendoset m\u00eb shum\u00eb. Temperatura nuk ndryshon. Kishim frik\u00eb se do t\u00eb ndodhte nj\u00eb kalim ajri p\u00ebrmes vet\u00eb rafteve, \u2014 nuk ndodhi. Por ne e japim pak m\u00eb shum\u00eb aj\u00ebr t\u00eb ftoht\u00eb sesa vlerat e llogaritura. B\u00ebm\u00eb hapje n\u00eb lamela 3, 7 dhe 12, mbi raft b\u00ebjm\u00eb nj\u00eb vrim\u00eb. N\u00eb t\u00eb vendosim anemometrin gjat\u00eb inspektimit: shikojm\u00eb n\u00ebse rrjedha shkon n\u00eb drejtimin e duhur.<\/p>\n

\"Si
\n
\nPastaj vendos\u00ebm fije t\u00eb ndritshme: nj\u00eb praktik\u00eb e vjet\u00ebr p\u00ebr snajper\u00ebt. Duket e \u00e7uditshme, por lejon t\u00eb zbulohet nj\u00eb problem i mundsh\u00ebm m\u00eb shpejt. <\/p>\n

\"Si
\n <\/p>\n

E \u00e7uditshme<\/h3>\n

\nNd\u00ebrkoh\u00eb q\u00eb ne po b\u00ebnim gjith\u00e7ka n\u00eb heshtje, erdhi nj\u00eb furnizues q\u00eb prodhon inxhinierin\u00eb p\u00ebr Qendrat e t\u00eb Dh\u00ebnave. Thot\u00eb: le t\u00eb vijm\u00eb dhe t\u00eb flasim p\u00ebr efikasitetin energjetik. Vijn\u00eb, fillojn\u00eb t\u00eb flasin p\u00ebr sall\u00eb jo optimale, rrjedhat ajrore. Ne pajtohemi me kok\u00eb. Sepse ne e kemi instaluar at\u00eb tre vjet m\u00eb par\u00eb. <\/p>\n

Ata vendosin nga tre sensor\u00eb n\u00eb \u00e7do raft. Pamjet e monitorimit jan\u00eb fenomenale, t\u00eb bukura. M\u00eb shum\u00eb se gjysma e k\u00ebtij zgjidhjeje \u00ebsht\u00eb \u00e7mimi \u2014 software. N\u00eb nivelin e \u2018alert n\u00eb Zabbix\u2019, por pronar dhe shum\u00eb i shtrenjt\u00eb. Problemi \u00ebsht\u00eb se ata kan\u00eb sensor\u00ebt, software-n, dhe m\u00eb pas k\u00ebrkojn\u00eb nj\u00eb kontraktues n\u00eb vend: nuk kan\u00eb furnizues t\u00eb vetin p\u00ebr cage-ing.<\/p>\n

M\u00ebsojm\u00eb se puna e tyre \u00ebsht\u00eb pes\u00eb deri n\u00eb shtat\u00eb her\u00eb m\u00eb e shtrenjt\u00eb se ajo q\u00eb b\u00ebm\u00eb ne.<\/p>\n

Linket<\/h3>\n

<\/p>\n