. "1"^^ . . . . "0"^^ . . "1"^^ . "V\u00FDvoj sondy pro kontinu\u00E1ln\u00ED m\u011B\u0159en\u00ED rosn\u00E9ho bodu spalin v energetick\u00FDch kotl\u00EDch"@cs . "Condensation occurs in the boiler systems on each place, with surface temperatures lower than so-called the dew point temperature. The most effective precaution is to increase the surface temperature of those parts above the flue gas dew point temperature (which has to be estimated). The corrosion below the dew point can occur suddenly in previously properly operating device by simply changing the operating parameters, or changing the fuel mix. Knowing dew point may indirectly contribute to increased thermal efficiency of the device because it allows for greater cooling of flue gases and thereby reduce thermal losses without fear of corrosion damage. Currently there is no system that would be able to monitor the dew point temperature in energetic units. The aim of this project is to develop a system that would be able to automatically measure the dew point temperature of flue gases. In combination with automatic control of preheating of incoming air into the combustion process, this would mean a significant reduction of condensation of liquid components from the flue gas, which is the main cause of corrosion damage in the parts of the boiler colder than a given temperature of the boilers. Such a probe for continuous measurement of flue gas dew point temperature would be universally applicable to various types of combustion units."@en . "0"^^ . . "2015-12-31+01:00"^^ . . . "Development of probe for continuous measurement of dew point of flue gas in boilers"@en . . . . "8350"^^ . "P\u0159i spalov\u00E1n\u00ED prakticky jak\u00E9hokoli paliva obsahuj\u00ED spaliny ur\u010Dit\u00FD pod\u00EDl vlhkosti. Za ur\u010Dit\u00FDch podm\u00EDnek tedy m\u016F\u017Ee doch\u00E1zet ke kondenzaci vody, p\u0159\u00EDpadn\u011B nejr\u016Fzn\u011Bj\u0161\u00EDch vodn\u00FDch roztok\u016F. Spolu s vodou mohou kondenzovat i dal\u0161\u00ED slo\u017Eky obsa\u017Een\u00E9 ve spalin\u00E1ch v z\u00E1vislosti na slo\u017Een\u00ED paliva (zejm\u00E9na biomasa a uhl\u00ED). Typicky jde o roztoky anorganick\u00FDch kyselin (H2SO3, H2SO4, HCl, HNO3), \u010Dast\u00E9 jsou i kyseliny organick\u00E9. Korozn\u00ED po\u0161kozen\u00ED zp\u016Fsoben\u00E9 t\u011Bmito kyselinami b\u00FDv\u00E1 pochopiteln\u011B zna\u010Dn\u00E9. Ke kondenzaci doch\u00E1z\u00ED v kotli a v syst\u00E9mech kou\u0159ovod\u016F vychlazen\u00FDch spalin na m\u00EDstech, kter\u00E1 maj\u00ED povrchovou teplotu ni\u017E\u0161\u00ED, ne\u017E je tzv. teplota rosn\u00E9ho dobu. Nejefektivn\u011Bj\u0161\u00EDch n\u00E1pravou je p\u0159ijmout opat\u0159en\u00ED ke zv\u00FD\u0161en\u00ED povrchov\u00E9 teploty p\u0159\u00EDslu\u0161n\u00FDch m\u00EDst nad rosnou teplotu spalin (kterou je ale pot\u0159eba zn\u00E1t). Ke vzniku koroze pod rosn\u00FDm bodem m\u016F\u017Ee doj\u00EDt n\u00E1hle i u d\u0159\u00EDve bezprobl\u00E9mov\u00E9ho za\u0159\u00EDzen\u00ED pouhou zm\u011Bnou provozn\u00EDch parametr\u016F, \u010Di zm\u011Bnou palivov\u00E9ho mixu. Znalost rosn\u00E9ho bodu m\u016F\u017Ee nep\u0159\u00EDmo p\u0159isp\u011Bt i ke zv\u00FD\u0161en\u00ED tepeln\u00E9 \u00FA\u010Dinnosti za\u0159\u00EDzen\u00ED, vzhledem k mo\u017Enosti v\u011Bt\u0161\u00EDho vychlazen\u00ED spalin a t\u00EDm sn\u00ED\u017Een\u00ED kom\u00EDnov\u00E9 ztr\u00E1ty, bez obav z korozn\u00EDho po\u0161kozen\u00ED. V sou\u010Dasn\u00E9 dob\u011B nen\u00ED k dispozici syst\u00E9m, kter\u00FD by byl schopn\u00FD univerz\u00E1ln\u011B sledovat teploty rosn\u00FDch bod\u016F ve spalovac\u00EDch za\u0159\u00EDzen\u00EDch. C\u00EDlem tohoto v\u00FDzkumu je zhotoven\u00ED syst\u00E9mu, kter\u00FD by byl schopen automaticky m\u011B\u0159it teplotu rosn\u00E9ho bodu spalin p\u0159\u00EDmo ve spalovac\u00EDm za\u0159\u00EDzen\u00ED. V kombinaci s automatickou regulac\u00ED p\u0159edeh\u0159evu vstupn\u00EDho vzduchu do spalovac\u00EDho procesu by to znamenalo v\u00FDrazn\u00E9 omezen\u00ED kondenzace kapaln\u00FDch slo\u017Eek ze spalin, co\u017E je hlavn\u00ED p\u0159\u00ED\u010Dina korozn\u00EDho po\u0161kozen\u00ED chladn\u011Bj\u0161\u00EDch \u010D\u00E1st\u00ED kotl\u016F. Takto vznikl\u00E1 sonda na kontinu\u00E1ln\u00ED m\u011B\u0159en\u00ED rosn\u00E9ho bodu spalin by byla univerz\u00E1ln\u011B pou\u017Eiteln\u00E9 pro r\u016Fzn\u00E9 typy spalovac\u00EDch jednotek."@cs . "2013-01-01+01:00"^^ . . "corrosion- dew point temperature- condensation of acids- energy boilers- probe for measuring dew point temperature- flue gas condensation"@en . "0"^^ . "4833"^^ .