文档介绍：Chapter12 HeatExchanger112-1TypesofHeatExchangers12-2TheOverallHeatExchangersCoefficient12-3AnalysisofHeatExchangers12-4TheLogMeanTemperatureDifferenceMethod12-5TheEffectiveness-NTUMethod12-6SelectionofHeatExchangersSummaryChapter12HeatExchanger ?,,itisusuallyconvenienttoworkwiththelogarithmicmeantemperaturedifferenceLMTD,:Heatingandair-putercoolingOthercasesCHAPTER12HeatExchanger512-1 -1 :inparallelflow::-pipeheatexchanger712-1 .Aheatexchangerwith>700m2/pact.(thehumanlung20,000m2/m3)12-1 pactheatexchangerAgas-to-pacth