COMPUTER DESIGNING OF MULTILINE HEAT EXCHANGERS FOR AIR SEPARATION UNITS
DOI:
https://doi.org/10.18198/j.ind.gases.2006.0269Keywords:
Cryogenic system, Air separation unit, Program of designing, Multiline heat exchangers, System of the differential equations, Algorithm of integrationAbstract
The multiline heat exchangers find the wide application in systems of cryogenic engineering and especially in cryogenic air separation units. Their designing in some cases is realized with use of specific techniques with limited opportunities. For creation of designing program of heat exchangers the mathematical model of multiline heat exchangers is created in most general view. Requirements to programs of design calculation of multiline heat exchangers are formulated. The systems of differential equations (SDE) describing complex processes of heat exchange in this device are submitted. The algorithm of definition of a temperature field of the device is developed by integration SDE taking into account the features of real processes. An example of the applied program of designing multiline twisted heat exchanger for air separation units is offered.
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