Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
663192 | International Journal of Heat and Mass Transfer | 2007 | 7 Pages |
Abstract
In a plate heat exchanger, heat transfer from the hot to the cold fluid is a multi-dimensional conjugate problem, in which longitudinal heat conduction (LHC) along the dividing walls often plays some role and can not be neglected. Large-scale, or end-to-end, LHC is always detrimental to the exchanger's effectiveness. On the contrary, if significant non-uniformities exist in the distribution of either convective heat transfer coefficient, small-scale, or local, LHC may actually enhance the exchanger's performance by improving the thermal coupling between high heat transfer spots located on the opposite sides of the dividing wall.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Michele Ciofalo,