Fix cp0 for tabular backends; closes #696

CoolProp · Jun 28, 2015 · ef929fc · ef929fc
1 parent 350004f
commit ef929fc
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diff --git a/include/AbstractState.h b/include/AbstractState.h
@@ -372,6 +372,8 @@ class AbstractState {
      */
     static AbstractState * factory(const std::string &backend, const std::vector<std::string> &fluid_names);
 
+    /// Set the internal variable T without a flash call (expert use only!)
+    void set_T(CoolPropDbl T){ _T = T; }
     /// Get a string representation of the backend
     virtual std::string backend_name(void) = 0;
     // The derived classes must implement this function to define whether they use mole fractions (true) or mass fractions (false)

diff --git a/src/Backends/Tabular/TabularBackends.h b/src/Backends/Tabular/TabularBackends.h
@@ -703,6 +703,7 @@ class TabularBackend : public AbstractState
             return _Q*yV + (1-_Q)*yL;
         }
         CoolPropDbl calc_cpmolar_idealgas(void){
+            this->AS->set_T(_T);
             return this->AS->cp0molar();
         }