Wolverine Engineering Data Book -

You calculate the refrigerant pressure drop through the tube bundle using the two-phase multiplier provided in Section 2. The book tells you the "Martinelli parameter" and how to apply it.

You move to Section 2 (Evaporation). You decide to use Wolverine "Turbo-B II" tubing. The data book provides a graph: "Heat Transfer Coefficient vs. Heat Flux for R-717." You read that at 15,000 BTU/hr-sqft, the HTC is 3,500 BTU/hr-sqft-F.