Changeset 224 for branches/newlanguage/eml/heat_exchangers/HEX_Engine.mso

Timestamp:

Mar 19, 2007, 8:03:06 PM (16 years ago)

Author:

gerson bicca

Message:

added sample for a detailed shell and tubes heat exchanger

File:

• branches/newlanguage/eml/heat_exchangers/HEX_Engine.mso (modified) (3 diffs)

branches/newlanguage/eml/heat_exchangers/HEX_Engine.mso

@@ -127 +127 @@
 fi              as fricfactor                   (Brief="Friction Factor", Default=0.05, Lower=1e-10, Upper=2000);
 PR              as positive                             (Brief="Tube Side Prandtl Number",Default=0.5,Lower=1e-8);
-PRw     as positive                             (Brief="Tube Side Prandtl Number at Wall Temperature",Default=0.5,Lower=1e-8);
 Phi             as positive                             (Brief="Phi Correction",Default=1,Lower=1e-3);
 Vtube   as velocity                             (Brief="Tube Side Velocity",Lower=1e-8);
@@ -172 +171 @@
 Re              as positive                             (Brief="Shell Side Reynolds Number",Default=100,Lower=1);
 PR              as positive                             (Brief="Shell Side Prandtl Number",Default=0.7,Lower=1e-6);
-PRw             as positive                             (Brief="Shell Side Prandtl Number",Default=0.5,Lower=1e-8);
 hshell          as heat_trans_coeff     (Brief="Shell Side Film Coefficient",Default=1,Lower=1e-12, Upper=1e6);
 Phi     as positive                             (Brief="Phi Correction",Default=1,Lower=1e-3);
@@ -235 +233 @@
 DTL             as temp_delta   (Brief="Temperature Difference at Outlet",Lower=1);
 LMTD            as temp_delta   (Brief="Logarithmic Mean Temperature Difference",Lower=1);
-Fc                      as positive             (Brief="LMTD Correction Factor",Lower=0.4);
+Fc                      as positive             (Brief="LMTD Correction Factor",Lower=0.1);
 
 EQUATIONS