normalize hx output difference

decrease nodes in example cmod
NREL · Jan 2, 2025 · 6ebdb5d · 6ebdb5d
1 parent 9db25bd
commit 6ebdb5d
Show file tree

Hide file tree

Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/ssc/cmod_csp_heatsink.cpp b/ssc/cmod_csp_heatsink.cpp
@@ -38,7 +38,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 static var_info _cm_vtab_csp_heatsink[] = {
     /* VARTYPE          DATATYPE         NAME                         LABEL                                                                               UNITS           META              GROUP             REQUIRED_IF                CONSTRAINTS         UI_HINTS*/
     // Inputs
-    { SSC_INPUT,        SSC_NUMBER,      "t_step",                    "Timestep duration",                                                                "s",            "",               "system",         "*",                       "",                      "" },
+    { SSC_INPUT,        SSC_NUMBER,      "t_step",                    "Timestep duration",                                                                "s",            "",               "system",         "",                       "",                      "" },
 
     var_info_invalid };
 
@@ -77,7 +77,7 @@ class cm_csp_heatsink : public compute_module
         // Initialize
         C_HX_htf_to_steam m_hx;
         int hot_fl = 21;    // HTF fl id
-        int N_sub_hx = 500;
+        int N_sub_hx = 50;
         NS_HX_counterflow_eqs::E_UA_target_type od_target_type = NS_HX_counterflow_eqs::E_UA_target_type::E_constant_UA;
         m_hx.initialize(hot_fl, N_sub_hx, od_target_type);
 

diff --git a/tcs/heat_exchangers.cpp b/tcs/heat_exchangers.cpp
@@ -3258,7 +3258,7 @@ int C_HX_htf_to_steam::C_MEQ__target_cold_PH_out::operator()(double m_dot_c /*kg
         m_tol,
         m_q_dot, m_h_c_out, m_h_h_out);
 
-    *diff_h_c_out = (m_h_c_out - m_h_c_out_target) / 200;   //[kJ/kg]
+    *diff_h_c_out = (m_h_c_out - m_h_c_out_target) / m_h_c_out_target;   //[kJ/kg]
 
     return 0;
 }