Fix result plot in gas turbine example

docs/whats_new/v0-7-5.rst

@@ -4,8 +4,10 @@ v0.7.5 - Under development
 Documentation
 #############
 - The Rankine cycle example has been adopted to integrate a T-s diagram of the
-  process into the results.
+  process into the results
   (`PR #514 <https://github.com/oemof/tespy/pull/514>`__).
+- A bug in the results plot of the gas turbine example has been fixed
+  (`PR #522 <https://github.com/oemof/tespy/pull/522>`__).
 
 Other Features
 ##############

pyproject.toml

@@ -93,6 +93,7 @@ addopts = """
     --pyargs
     --ignore=docs/conf.py
     --ignore=docs/scripts
+    --ignore=docs/_build
 """
 testpaths = [
     "src/",

src/tespy/networks/network.py

@@ -2209,7 +2209,7 @@ def iterinfo_tail(self, print_results=True):
         """Print tail of convergence progress."""
         num_iter = self.iter + 1
         clc_time = self.end_time - self.start_time
-        num_ips = num_iter / clc_time if clc_time > 1e-10 else np.Inf
+        num_ips = num_iter / clc_time if clc_time > 1e-10 else np.inf
         msg = '-' * 7 + '+------------' * 7
         logger.progress(100, msg)
         msg = (

tutorial/basics/gas_turbine.py

@@ -118,7 +118,7 @@
 fig, ax = plt.subplots(2, 2, figsize=(16, 8), sharex='col', sharey='row')
 
 ax = ax.flatten()
-[a.grid() for a in ax]
+[(a.grid(), a.set_axisbelow(True)) for a in ax]
 
 i = 0
 for key in data:
@@ -145,6 +145,8 @@
     nw.solve('design')
     T3 += [c3.T.val]
 
+T3 = T3[::-1]
+
 # reset to base value
 c3.fluid.is_set.remove("O2")
 c3.set_attr(T=1200)
@@ -153,6 +155,7 @@
 
 ax.scatter(data * 100, T3, s=100, color="#1f567d")
 ax.grid()
+ax.set_axisbelow(True)
 
 ax.set_ylabel('Turbine inlet temperature in °C')
 ax.set_xlabel('Oxygen mass fraction in flue gas in %')
@@ -185,6 +188,7 @@
 ax.scatter(data, CH4, s=100, color="#1f567d", label="CH4 mass fraction")
 ax.scatter(data, H2, s=100, color="#18a999", label="H2 mass fraction")
 ax.grid()
+ax.set_axisbelow(True)
 ax.legend()
 
 ax.set_ylabel('Mass fraction of the fuel in %')