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Floor radiant cooling and displacement ventilation and air conditioning room simulation and analysis of thermal environment

humiditydistributionatindoor. Atthemaximumofcoolingloadoftheindoor,[link widoczny dla zalogowanych], simulatedvelocityfield, temperatarefieldandhumidityfieldinisothermalandnotisothermalsupplingairwiththedifferenttemperatureofthefloor. UsingPMv-PPDthermalcomfortindex. analysedparameterchangeoftheair-conditioningsysteminbasicallysatisfinghumanbodyinthermalcomfort. Keywords: radiantfloorcooling; displacementventilation; thermalenvironment; numericalsimulation:-PPD Author: Yu Yuansheng (1983 a) , male , Master , research direction : displacement ventilation and radiant floor cooling . (Continued from page 85 ) StudyontheMechanicalPropertiesofInductionPiercingLarge - diameterA335P91Elbowfor600MWSCUnitsGU0Yan-jun (Standardization & QualityControlResearchInstituteofElectricPowerIndustry,[link widoczny dla zalogowanych], Hangzhou310030, China) Abstract: Themechanicaltestsandotherrelateditemtestsforinductionpiercinglarge-diameterA335P91elbowusedin600MWSCunitswerecarriedout. Theresultsshowthattheelbowdoesnothaveanysurfacecracksandgrainboundarycracks, itsdimension, thickness, roundness, etc. areinaccordancewiththestandardDL/T695-1999,[link widoczny dla zalogowanych], andthemechanicalpropertieothinroomtemperatureanddesigntemperaturecomplywiththespecificationofASTMA335P91. OwingtotheeffectofstresshardeningandBauchinger, themechanicalpropertiesattheintradosandextradosoftheelbowareobviousdifferent. TheauthorputforwardthesuggestionthattheenlargeratioofelbowdiametershallbestrictlycontrolledandtheplasticdeformationshallbereducedduringproductionSOastoobtainoptimummechanicalproperties. Keywords: SCunits; A335P91steel; inductionpiercingelbow; mechanicalproperties Author : Guo Yanjun (1965 a) , male ,[link widoczny dla zalogowanych], Hebei Handan , senior engineer, is mainly engaged in power plant pipes ,[link widoczny dla zalogowanych], fittings and hanger system detection and Experimental Research. -6I volume

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