ANALYSIS OF PLATE FIN SURFACE TYPES PERFORMANCE BASED ON THE SECOND LAW OF THERMODYNAMICS. A CASE STUDY

摘要

Any heat transfer augmentation technique modifies the irreversibility of the process to the extent to which the positive effect can be cut back by exergy loss. The paper is based on an analysis technique developed by Bejan [1], which quantifies the entropy generation rate induced by an augmentation technique applied to a passage compared to the entropy generation rate in the original passage. The method proposed in this paper can be regarded as an extension of that described by Bejan [1], being applied to different types of heat transfer surfaces, as opposed to Bejan's approach, which compares the augmented and un-augmented cases.