Nowadays, plate heat exchangers (PHEs) are extensively used for heating,cooling and heat-regeneration applications in the chemical,food and pharmaceuticalindustries.This type of exchanger was originally developed for use in hy- gienicapplicationssuchasthepasteurizationofliquidfood products. However, the range of applications of this type of exchanger largely expanded in the last decades due to the continual design and construction improvements. As shown in Fig. 1, the PHE consists of a pack of corrugated metal plates pressed together into a frame. The gaskets between the plates form a series of thin channels where the hot and coldfluidsflowandexchangeheatthroughthemetalplates. The flow distribution inside the plate pack is defined by
the design of the gaskets, the opened and closed ports of the platesandthelocationofthefeedconnectionsatthecovers. Despite the large number of applications, rigorous de- sign methods for the PHEs are still restricted to the equip- mentmanufacturers.Simplifiedmethodsforthecalculation oftherequirednumberofplateswerepresentedbyLawry (1959),Buonopaneetal.(1963),JacksonandTroupe(1966) andRajuandBansal(1983).JarzebskiandWardas-Koziel (1985) developed a graphical procedure for determining the numberofpassesandthenumberofchannelsperpassthat minimize the annual operational costs. However, a simpli- fiedevaluationmodelofthePHEwasusedduetothecom- plexity of the optimization of the PHE configuration, which
defines its flow distribution.
Nowadays, plate heat exchangers (PHEs) are extensively used for heating,cooling and heat-regeneration applications in the chemical,food and pharmaceuticalindustries.This type of exchanger was originally developed for use in hy- gienicapplicationssuchasthepasteurizationofliquidfood products. However, the range of applications of this type of exchanger largely expanded in the last decades due to the continual design and construction improvements. As shown in Fig. 1, the PHE consists of a pack of corrugated metal plates pressed together into a frame. The gaskets between the plates form a series of thin channels where the hot and coldfluidsflowandexchangeheatthroughthemetalplates. The flow distribution inside the plate pack is defined bythe design of the gaskets, the opened and closed ports of the platesandthelocationofthefeedconnectionsatthecovers. Despite the large number of applications, rigorous de- sign methods for the PHEs are still restricted to the equip- mentmanufacturers.Simplifiedmethodsforthecalculation oftherequirednumberofplateswerepresentedbyLawry (1959),Buonopaneetal.(1963),JacksonandTroupe(1966) andRajuandBansal(1983).JarzebskiandWardas-Koziel (1985) developed a graphical procedure for determining the numberofpassesandthenumberofchannelsperpassthat minimize the annual operational costs. However, a simpli- fiedevaluationmodelofthePHEwasusedduetothecom- plexity of the optimization of the PHE configuration, whichdefines its flow distribution.
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