Recent work has been conducted to characterize the air-side heat transfer and pressure drop performance of heat exchangers with slit and louver fins and tube outer diameters ranging from 3-5 mm. These newly developed correlations have been implemented into a heat exchanger simulation tool to predict performance, enable design, and conduct detailed analysis. An optimization study was conducted using a Multi-Objective Genetic Algorithm (MOGA) technique. This paper highlights the benefits of reducing tube diameters in tube-fin heat exchangers and illustrates an approach to design and optimize heat exchangers to meet a wide range of design criteria.
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