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Sufficient conditions are given for a heat exchanger or an assembly of heat exchangers to be invariant under the interchange of the two fluids. Analysis of this symmetry is performed on tht basis of geometrical or topological properties of the exchanger, and no prior knowledge of the exchanger solution is required. The 1-2 and 1-4 TEMA E, the split-flow TEMA G, and the divided-flow TEMA J shell-and-tube exchangers are discussed as examples. A t tent ion is drawn to possible erroneous interpretations of published F-charts for stream-unsymmetric eases.
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 4 | |
popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |