{"id":38008,"date":"2019-10-31T22:21:10","date_gmt":"2019-10-31T19:21:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/toplivnyj-monitoring-dlya-dizel-generatorov-tsoda-kak-ego-delat-i-pochemu-eto-tak-vazhno\/"},"modified":"2019-10-31T22:21:10","modified_gmt":"2019-10-31T19:21:10","slug":"toplivnyj-monitoring-dlya-dizel-generatorov-tsoda-kak-ego-delat-i-pochemu-eto-tak-vazhno","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/toplivnyj-monitoring-dlya-dizel-generatorov-tsoda-kak-ego-delat-i-pochemu-eto-tak-vazhno","title":{"rendered":"Br\u00e6ndstofoverv\u00e5gning for dieselgeneratorer i datacentre \u2013 hvordan man g\u00f8r det, og hvorfor det er s\u00e5 vigtigt?","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Br\u00e6ndstofoverv\u00e5gning for dieselgeneratorer i datacentre \u2013 hvordan man g\u00f8r det, og hvorfor det er s\u00e5 vigtigt?\" src=\"\/wp-content\/uploads\/2019\/09\/fa28da9ef4d9c3129a3ac6f76c409e7f.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<i>Kvaliteten af elsystemet er den vigtigste indikator for service-standarden i moderne datacentre. Det er indlysende: alt udstyr, der er n\u00f8dvendigt for at drive et datacenter, f\u00e5r str\u00f8m fra elektricitet. Uden str\u00f8m vil servere, netv\u00e6rk, tekniske systemer og lagerenheder stoppe med at fungere, indtil str\u00f8mmen er genoprettet.\u00a0\u00a0<\/p>\n<p>Her fort\u00e6ller vi, hvilken rolle dieselbr\u00e6ndstof og vores kvalitetsoverv\u00e5gningssystem spiller for den uafbrudte drift af Linxdatacenter i Sankt Petersborg.\u00a0<\/i><br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nDu vil blive overrasket, men specialister fra Uptime Institute till\u00e6gger ved certificering af datacentre i henhold til branchestandarder en prim\u00e6r rolle til dieselgeneratorernes ydeevne ved vurdering af elsystemet.\u00a0<\/p>\n<p>Hvorfor? Den uafbrudte drift af datacentre spiller en central rolle i den digitale \u00f8konomi. Realiteterne er, at 15 millisekunder str\u00f8mafbrydelse i datacentret er tilstr\u00e6kkeligt til at forstyrre forretningsprocesserne med m\u00e6rkbare konsekvenser for slutbrugeren. Er det meget eller lidt? Et millisekund (ms) er en tidsenhed svarende til en tusindedel af et sekund. Fem millisekunder er den tid, en bi har brug for til at udf\u00f8re et enkelt vingslag. For at blinke skal en person bruge 300-400 ms. Et minuts nedetid kostede i gennemsnit virksomheder 7900 dollars allerede i 2013 if\u00f8lge Emerson. Med den stigende digitalisering af erhvervslivet kan tabene udg\u00f8re hundredtusinder af dollars for hver 60 sekunders nedetid. \u00d8konomien kr\u00e6ver 100% tilslutning fra virksomhederne.\u00a0<\/p>\n<p>Og hvorfor betragtes dieselgeneratorer som den prim\u00e6re str\u00f8mkilde if\u00f8lge UI? Fordi datacentret i tilf\u00e6lde af afbrydelse af hovedforsyningsnetv\u00e6rket kan stole p\u00e5 dem som den eneste str\u00f8mkilde for at opretholde driften af alle systemer, indtil str\u00f8mmen er genoprettet via de prim\u00e6re kanaler.\u00a0\u00a0\u00a0<\/p>\n<p>For our data center in Saint Petersburg, issues related to power sources play a particularly important role: the data center is completely independent of the city network and is powered by a gas piston power plant with a capacity of 12 MW. If gas supply is interrupted for any reason, the data center switches to diesel generator operation. The UPS units start first, providing enough capacity for 40 minutes of uninterrupted operation, while the diesel generators take over within 2 minutes after the gas piston plant stops and can run on the available fuel reserve for at least another 72 hours. Simultaneously, a contract with the fuel supplier will be activated, obligating them to deliver the agreed volumes to the data center within 4 hours.\u00a0<\/p>\n<p>Preparing for Uptime Institute certification for compliance with Management &amp; Operations standards has forced us to pay close attention to the fuel supply process for diesel generators, quality control, interaction with suppliers, etc. This is logical: the performance quality of the nuclear power plant in Sosnovy Bor does not depend on us, but we must fully take responsibility for our section of the power grid.\u00a0<\/p>\n<h2>Diesel Fuel for Data Centers: What to Pay Attention To\u00a0<\/h2>\n<p>\nTo ensure that the generators operate for a long time, reliably, and economically, it is necessary not only to purchase reliable equipment but also to select the right diesel fuel (DF) for them.<\/p>\n<p>One obvious point: all types of fuel have an expiration date \u2013 3-5 years. It also varies significantly based on several parameters: one type is suitable for winter use, while another is completely unsuitable for that and its use could lead to a major accident.\u00a0<\/p>\n<p>All these factors must be closely monitored to avoid a situation where the diesel generators do not start due to expired or seasonally inappropriate fuel.<\/p>\n<p>One of the most important classification parameters is the type of fuel used. The quality of the chosen type from a specific supplier affects the high performance and reliability of the equipment.\u00a0<\/p>\n<p>The correct choice of DF will provide the following advantages:\u00a0<\/p>\n<ul>\n<li>high efficiency;\u00a0\n<\/li>\n<li>economy and low cost;\u00a0\n<\/li>\n<li>high torque;\u00a0\n<\/li>\n<li>high compression ratio.\n<\/li>\n<\/ul>\n<h3>Cetane number\u00a0<\/h3>\n<p>\nFaktisk har dieselbr\u00e6ndstof mange egenskaber, som du kan studere i specifikationen for det specifikke parti produkter. Dog er de vigtigste kriterier for specialister ved vurdering af kvaliteten af denne type br\u00e6ndstof cetantallet og temperaturens egenskaber.\u00a0<\/p>\n<p>Cetantallet i dieselbr\u00e6ndstof bestemmer startkapaciteten, dvs. br\u00e6ndstoffets evne til at ant\u00e6nde. Jo h\u00f8jere dette tal er, jo hurtigere br\u00e6nder br\u00e6ndstoffet i kammeret \u2013 og jo mere j\u00e6vnt (og sikrere!) br\u00e6nder blandingen af diesel og luft. Den standard r\u00e6kkevidde for dets v\u00e6rdier er 40-55. Kvalitets dieselbr\u00e6ndstof med et h\u00f8jt cetantal giver motoren: minimal tid, der kr\u00e6ves til opvarmning og ant\u00e6nding, j\u00e6vn drift og \u00f8konomi samt h\u00f8j effekt.<\/p>\n<h3>Rensning af dieselbr\u00e6ndstof\u00a0<\/h3>\n<p>\nIndtr\u00e6ngning af vand og mekaniske urenheder i dieselbr\u00e6ndstof er endnu mere farligt end for benzin. S\u00e5dant br\u00e6ndstof kan blive uegnet til brug. I nogle tilf\u00e6lde kan tilstedev\u00e6relsen af mekaniske urenheder opdages som bundfald i bunden af beholderen med dieselbr\u00e6ndstof.<br \/>\nVand skiller sig ogs\u00e5 fra br\u00e6ndstoffet og synker til bunds, hvilket g\u00f8r det muligt at fastsl\u00e5 dets tilstedev\u00e6relse. I dieselbr\u00e6ndstof, der ikke har st\u00e5et stille, for\u00e5rsager vand, at det bliver uklar.<\/p>\n<p>Forbedring af driftskarakteristikaene kan opn\u00e5s ved rensning af dieselbr\u00e6ndstof. Der findes specielle anl\u00e6g og filtreringssystemer til dette form\u00e5l. Valget af udstyr til en s\u00e5dan procedure afh\u00e6nger af, hvad der specifikt skal renses fra br\u00e6ndstoffet \u2013 paraffin, mekaniske urenheder, svovl eller vand.\u00a0<\/p>\n<p>Leverand\u00f8ren er ansvarlig for kvaliteten af rensningen af br\u00e6ndstoffet, derfor er det vigtigt at have et kontrolsystem for leverand\u00f8ren, som vi vil tale om nedenfor, og ikke glemme ekstra foranstaltninger. S\u00e5 for yderligere rensning af br\u00e6ndstoffet har vi installeret br\u00e6ndstofseparatorer Separ p\u00e5 br\u00e6ndstofledningen til hver generator.<\/p>\n<p><img decoding=\"async\" alt=\"Br\u00e6ndstofoverv\u00e5gning for dieselgeneratorer i datacentre \u2013 hvordan man g\u00f8r det, og hvorfor det er s\u00e5 vigtigt?\" src=\"\/wp-content\/uploads\/2019\/09\/64faad800f0a1719d0a4cb3c696cedc6.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Br\u00e6ndstofseparator.<\/i><\/p>\n<h3>Vejrforhold<\/h3>\n<p>\nI jagten p\u00e5 kvalitet og en overkommelig pris for br\u00e6ndstof glemmer virksomheder ofte temperaturen, hvormed stationen vil operere. Nogle gange kan valget af et br\u00e6ndstof \"til al slags vejr\" ikke medf\u00f8re nogen s\u00e6rlig skade. Men hvis stationen bruges udend\u00f8rs, er det en god id\u00e9 at v\u00e6lge br\u00e6ndstof i overensstemmelse med de klimatiske forhold.<\/p>\n<p>Producenter deler diesel br\u00e6ndstof op i sommer, vinter og 'arktisk' - til ekstremt lave temperaturer. I Rusland er det GOST 305-82, der st\u00e5r for opdelingen af br\u00e6ndstoffet efter \u00e5rstiderne. Dokumentet foreskriver, at sommerm\u00e6rker m\u00e5 anvendes ved temperaturer over 0 \u00b0C. Vinterbr\u00e6ndstof er egnet til brug ved temperaturer op til -30 \u00b0C. 'Arktisk' er anvendeligt ved kulde ned til -50 \u00b0C.<\/p>\n<p>For at sikre en stabil drift af dieselgeneratorer har vi besluttet at bestille vinterdiesel ved -35\u2103. Dette g\u00f8r, at vi ikke beh\u00f8ver at bekymre os om s\u00e6sonbestemte \u00e6ndringer i vejret.<\/p>\n<h2>Hvordan vi tester br\u00e6ndstof<\/h2>\n<p>\nFor at dieselgeneratorer fungerer p\u00e5lideligt, er det n\u00f8dvendigt at sikre, at leverand\u00f8ren sender netop det br\u00e6ndstof, som du har brug for.\u00a0<\/p>\n<p>Vi overvejede l\u00e6nge l\u00f8sningen p\u00e5 denne opgave, og vi kiggede p\u00e5 mulighederne for at tage pr\u00f8ver og sende dem til analyse i specialiserede laboratorier. Men denne tilgang kr\u00e6ver tid, og hvad g\u00f8r man, hvis analyserne ikke er tilfredsstillende? Partiet er allerede sendt \u2013 retur, ny bestilling? Og hvad hvis en s\u00e5dan ny bestilling falder i den periode, hvor generatorerne skal t\u00e6ndes?\u00a0<\/p>\n<p>Og s\u00e5 besluttede vi at m\u00e5le br\u00e6ndstofkvaliteten p\u00e5 stedet, ved hj\u00e6lp af oktanomre, specifikt \u2013 ved at bruge SHATOX SX-150. Dette apparat muligg\u00f8r en hurtig analyse af det leverede br\u00e6ndstof, og bestemmer ikke kun cetantal, men ogs\u00e5 frysepunkt og br\u00e6ndstoftype.<\/p>\n<p>Arbejdsprincippet for oktanometret er baseret p\u00e5 sammenligning af oktan\/cetan tal fra certificerede pr\u00f8ver af diesel\/bensinen med den kontrollerede diesel\/bensin. I specialprocessoren er de brugte tabeller for certificerede br\u00e6ndstoftyper indtastet, som interpolationsprogrammet sammenligner med parametrene for den indsamlede pr\u00f8ve og med korrektioner for pr\u00f8vens temperatur.<\/p>\n<p><img decoding=\"async\" alt=\"Br\u00e6ndstofoverv\u00e5gning for dieselgeneratorer i datacentre \u2013 hvordan man g\u00f8r det, og hvorfor det er s\u00e5 vigtigt?\" src=\"\/wp-content\/uploads\/2019\/09\/e805b91fcf27e59593a31a1eb99dfadd.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nDette apparat giver mulighed for at f\u00e5 br\u00e6ndstofkvalitetsresultater i realtid. Reglerne for m\u00e5ling af br\u00e6ndstofkvalitet ved hj\u00e6lp af oktanometret er skrevet ind i driftsreglementet.<\/p>\n<h3>Princip for oktanometrets funktion<\/h3>\n<p><\/p>\n<ol>\n<li>Sensoren installeres p\u00e5 en horisontal overflade og tilsluttes m\u00e5leblokken.<\/li>\n<li>Enheden t\u00e6ndes, n\u00e5r sensoren er tom. P\u00e5 m\u00e5leapparatet vises nulindstillingerne CETANE:\n<ul>\n<li>Cet = 0.0;<\/li>\n<li>T fr = 0.0.<\/li>\n<\/ul>\n<\/li>\n<li>Efter kontrollen af apparatets funktionalitet skal der h\u00e6ldes br\u00e6ndstof i sensoren, indtil den er helt fyldt. M\u00e5lings- og opdateringsprocessen tager ikke mere end 5 sekunder.<\/li>\n<li>Efter m\u00e5lingen indtastes dataene i et skema og sammenlignes med normv\u00e6rdierne. For nemheds skyld er cellerne indrettet med automatisk farvefremh\u00e6velse af v\u00e6rdierne. Ved acceptabel m\u00e5ling farves det gr\u00f8nt, mens utilfredsstillende parametre farves r\u00f8dt, hvilket giver mulighed for ekstra kontrol af de leverede br\u00e6ndstofparametre.<\/li>\n<li>Vi har valgt f\u00f8lgende normale m\u00e5linger for br\u00e6ndstofkvalitet:\n<ul>\n<li>Cet = 40-52;<\/li>\n<li>Tfr = fra minus 25 til minus 40.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Br\u00e6ndstofressourceoversigt<\/h3>\n<table>\n<tr>\n<td>Dato<\/td>\n<td>Modtagelse af br\u00e6ndstof<\/td>\n<td colspan=\"2\">Kvalitetskontrol<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">18. januar 2019<\/td>\n<td rowspan=\"3\">5180<\/td>\n<td>Cetane<\/td>\n<td>47<\/td>\n<\/tr>\n<tr>\n<td>TFr<\/td>\n<td>-32<\/td>\n<\/tr>\n<tr>\n<td>Type<\/td>\n<td>W<\/td>\n<\/tr>\n<\/table>\n<p><i>S \u2013 sommerbr\u00e6ndstof, W \u2013 vinterbr\u00e6ndstof, A \u2013 arktisk.<\/i><\/p>\n<h2>PROFIT! eller hvordan det fungerede\u00a0<\/h2>\n<p>\nVi fik faktisk de f\u00f8rste resultater fra projektet, lige efter vi satte kontrolsystemet i drift. Den f\u00f8rste kontrol viste, at leverand\u00f8ren havde bragt br\u00e6ndstof, der ikke levede op til de udmeldte parametre. Som resultat sendte vi tanken tilbage og anmodede om en erstatningsparti. Uden kontrolsystemet kunne vi v\u00e6re blevet ramt af en situation, hvor n\u00f8dstr\u00f8msgeneratoren ikke kunne startes p\u00e5 grund af d\u00e5rlig br\u00e6ndstofkvalitet.<\/p>\n<p>I det mest generelle, strategiske perspektiv giver et s\u00e5dant niveau af omhyggelig kvalitetskontrol fuld tillid til den uafbrudte energiforsyning til datacenteret, n\u00e5r vi helt kan stole p\u00e5 os selv til at opretholde 100 % uptime.\u00a0<\/p>\n<p>Og det er ikke bare ord: vi er m\u00e5ske det eneste datacenter i Rusland, der kan ved en demonstrativ rundtur for en kunde besvare sp\u00f8rgsm\u00e5let \"Kan I frakoble den prim\u00e6re str\u00f8mforsyning for at vise skiftet til den reserve?\" med et ja og straks, foran \u00f8jnene af dem, skifte alt udstyr til reserve p\u00e5 ethvert tidspunkt. Det vigtigste er, at dette kan udf\u00f8res af enhver medarbejder med det rette adgangsniveau: processerne er tilstr\u00e6kkeligt finjusterede, s\u00e5 vi ikke er afh\u00e6ngige af en bestemt medarbejder \u2013 s\u00e5 sikker er vi p\u00e5 os selv i denne henseende.<br \/>\n\u00a0<br \/>\nMen ikke kun os: kvalitetskontrolprocessen for diesel ved certificering fra Uptime Institute fangede ogs\u00e5 opm\u00e6rksomheden fra organisationens revisorer, som noterede sig dette som branchens bedste praksis.<br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/linxdatacenter\/blog\/467063\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u0430\u0447\u0435\u0441\u0442\u0432\u043e \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u0441\u043d\u0430\u0431\u0436\u0435\u043d\u0438\u044f \u2013 \u0432\u0430\u0436\u043d\u0435\u0439\u0448\u0438\u0439 \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044c \u0443\u0440\u043e\u0432\u043d\u044f \u0441\u0435\u0440\u0432\u0438\u0441\u0430 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u0430\u0442\u0430-\u0446\u0435\u043d\u0442\u0440\u0430. \u042d\u0442\u043e \u043f\u043e\u043d\u044f\u0442\u043d\u043e: \u0430\u0431\u0441\u043e\u043b\u044e\u0442\u043d\u043e \u0432\u0441\u0435 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0435 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0426\u041e\u0414\u0430, \u043f\u0438\u0442\u0430\u0435\u0442\u0441\u044f \u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u0442\u0432\u043e\u043c. \u041d\u0435 \u0431\u0443\u0434\u0435\u0442 \u0435\u0433\u043e \u2013 \u0441\u0435\u0440\u0432\u0435\u0440\u044b, \u0441\u0435\u0442\u044c, \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0438 \u0421\u0425\u0414 \u043f\u0440\u0435\u043a\u0440\u0430\u0442\u044f\u0442 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0434\u043e \u043f\u043e\u043b\u043d\u043e\u0433\u043e \u0432\u043e\u0441\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u0441\u043d\u0430\u0431\u0436\u0435\u043d\u0438\u044f.\u00a0\u00a0 \u0420\u0430\u0441\u0441\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u043c, \u043a\u0430\u043a\u0443\u044e \u0440\u043e\u043b\u044c \u0432 \u0431\u0435\u0441\u043f\u0435\u0440\u0435\u0431\u043e\u0439\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u0435 \u0426\u041e\u0414\u0430 Linxdatacenter \u0432 \u041f\u0435\u0442\u0435\u0440\u0431\u0443\u0440\u0433\u0435 \u0438\u0433\u0440\u0430\u044e\u0442 \u0434\u0438\u0437\u0435\u043b\u044c\u043d\u043e\u0435 \u0442\u043e\u043f\u043b\u0438\u0432\u043e \u0438 \u043d\u0430\u0448\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u0435\u0433\u043e [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":28528,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-38008","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\".\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/da\/blog\/news\/toplivnyj-monitoring-dlya-dizel-generatorov-tsoda-kak-ego-delat-i-pochemu-eto-tak-vazhno\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"da_DK\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0422\u043e\u043f\u043b\u0438\u0432\u043d\u044b\u0439 \u043c\u043e\u043d\u0438\u0442\u043e\u0440\u0438\u043d\u0433 \u0434\u043b\u044f \u0434\u0438\u0437\u0435\u043b\u044c-\u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u043e\u0432 \u0426\u041e\u0414\u0430 \u2013 \u043a\u0430\u043a \u0435\u0433\u043e \u0434\u0435\u043b\u0430\u0442\u044c \u0438 \u043f\u043e\u0447\u0435\u043c\u0443 \u044d\u0442\u043e \u0442\u0430\u043a \u0432\u0430\u0436\u043d\u043e? 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