This paper presents single phase shell side heat transfer performance of a vertically oriented shell and tube bundle. Steady state single phase experiments were conducted to determine the shell side Nusselt number with water and water/glycol solution as working fluids for both counter and parallel flow configurations. Experiments were carried for Reynolds number varying from 3,000 to 15,000 with Prandtl number ranging from 10 to 20. Counter flow configuration showed slightly better performance. Nusselt number correlations are presented for both configurations using modified Wilson plot method. Comparison of results with previous studies and commercial software are presented. Thermal performance for all flow rate conditions showed close comparison to the results from a reputable commercial software. The correlation was further validated by comparing results for thirty different cases to calculations from two widely used commercial software. Comparison showed that the correlation can be used for the design of single phase single segmental shell and tube heat exchangers.

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