华北理工环境工程原理教案第2章 质量衡算与能量衡算

1§2-11960SI22.1.3HzNPaJWCVFSWbTHlmlxBqGySv1/skg·m/s2N/m2N·mJ/sA·sW/AC/VV/AA/VV·sWb/m2Wb/Acd·srlm/m21/sJ/kgJb/kg1m3.2808ft3.28082.1.11atm1.033kgf/cm2N/m2kgf/cm2kgfcm2m2kgf9.806651kgf9.80665N1cm0.01m1.033kgf/cm21.033×9.80665N/(0.01m)2=1.013×105N/m2:MLtT:]=Lt1]=ML3]=ML1t2]=ML1t13(Reynold)Re/uL0001113[Re]tLMtMLLLtML1113][][][][tMLLLLtuMLg/L,mg/L,kg/m3mol/L,kmol/L————————————41L1000g1mg/L1mg/1000g1×10-6=1ppmg/Lg/1000g1×10-9=1ppb1mg/L1×10-6g/L1×10-9mL/m310-610-610610610-61062.1.31atm259.0×10-61mol1atm25LV44.241298082.01CO28g/molCO3.101000/44.241000281096NH30.3NH30.3310VMnVmAAAA310AAAMnVpRTnVAAAAApMRTVV3105xy!!!0.53.0m/s,1030m/s1.J/m2·s2.kg/m2·s3.kmol/m2·s24Vmqud4VmqduVVqtmVqtux,y,zxuyuzudVAmuAquAA6§2-21Vq2VqVmq——?1272.2.42.2.410m3/s20mg/L5m3/s40mg/L1VqVmq2Vq11122mVVqqq2mmVmqq1122VVmVmqqq12VmVVqqq112212VVmVVqqqq12ddmmmrmqqqt85000m3/d200mg/L20mg/L99.8%96%100mg/L1000kg/m3(1)(2)999.896472.5m3/d22.5m3/d,20V2.2.310.0×106m35.0m3/s10.0mg/L0.5m3/s100mg/L0.20d-111122mVVqqq212()mVmmVVqqqqmrqkV102.2.4500m3501.4mg0.40h-11000m3/h251atm0.05×10-62.2.50.8m2m1m1234115P4679§2-3————————12Q—W—E2.3.11.5kW20L15652.3.3373K1000kg/h298K353K3.56kJ/(kg·K)37310000kJ/h2.3.51000MW15%85%100m3/s2010132.3.450m315355m3/h1001000kg/m3T0123P47,13,1414