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TABLE 7.6: Heat Transfer Correlations (Cont'd) CORRELATION COMMENTS 2k h w - w d JlnCd/dj) Wall Heat Transfer Coefficient: - The wall resistance referred to the tube outside diameter, RWALL = — is calculated in START. CWALL = w k , the thermal conductivity of the tube wall material is specified by the user in READIN. RFOUL = 7 — i — h foul Fouling Resistance: - RFOUL is specified by the us~r in READIN. I I- 1