| Resource | Best For | Availability | | :--- | :--- | :--- | | | Refrigerant properties and general HVAC heat transfer | In print and PDF via ASHRAE.org | | HTRI Design Manual | Two-phase flow in industrial heat exchangers | Requires HTRI membership/license | | VDI Heat Atlas (Springer) | Comprehensive European correlations, includes enhanced surfaces | PDF via university subscription | | Kakac, S. "Heat Exchangers" | Textbook covering similar scope, but no proprietary tube data | Widely available used |
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