I am working on a theoretical research regarding the boiling heat transfer enhancement factor for pure liquids. The work is intended to focus on the integrally machined enhanced tubes including the low finned and Gewa tube family. It is a well appreciated if any colleague has got the physical dimensions of these tubes including the fin spacing, FPI, fin height and the enhanced surface area to the root surface area ratio. The catalogue of these surfaces will be of a great help. Thank you in advance for your cooperative attitudes.

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