FEA-Bench / testbed /matplotlib__matplotlib /galleries /examples /specialty_plots /sankey_rankine.py
| """ | |
| =================== | |
| Rankine power cycle | |
| =================== | |
| Demonstrate the Sankey class with a practical example of a Rankine power cycle. | |
| """ | |
| import matplotlib.pyplot as plt | |
| from matplotlib.sankey import Sankey | |
| fig = plt.figure(figsize=(8, 9)) | |
| ax = fig.add_subplot(1, 1, 1, xticks=[], yticks=[], | |
| title="Rankine Power Cycle: Example 8.6 from Moran and " | |
| "Shapiro\n\x22Fundamentals of Engineering Thermodynamics " | |
| "\x22, 6th ed., 2008") | |
| Hdot = [260.431, 35.078, 180.794, 221.115, 22.700, | |
| 142.361, 10.193, 10.210, 43.670, 44.312, | |
| 68.631, 10.758, 10.758, 0.017, 0.642, | |
| 232.121, 44.559, 100.613, 132.168] # MW | |
| sankey = Sankey(ax=ax, format='%.3G', unit=' MW', gap=0.5, scale=1.0/Hdot[0]) | |
| sankey.add(patchlabel='\n\nPump 1', rotation=90, facecolor='#37c959', | |
| flows=[Hdot[13], Hdot[6], -Hdot[7]], | |
| labels=['Shaft power', '', None], | |
| pathlengths=[0.4, 0.883, 0.25], | |
| orientations=[1, -1, 0]) | |
| sankey.add(patchlabel='\n\nOpen\nheater', facecolor='#37c959', | |
| flows=[Hdot[11], Hdot[7], Hdot[4], -Hdot[8]], | |
| labels=[None, '', None, None], | |
| pathlengths=[0.25, 0.25, 1.93, 0.25], | |
| orientations=[1, 0, -1, 0], prior=0, connect=(2, 1)) | |
| sankey.add(patchlabel='\n\nPump 2', facecolor='#37c959', | |
| flows=[Hdot[14], Hdot[8], -Hdot[9]], | |
| labels=['Shaft power', '', None], | |
| pathlengths=[0.4, 0.25, 0.25], | |
| orientations=[1, 0, 0], prior=1, connect=(3, 1)) | |
| sankey.add(patchlabel='Closed\nheater', trunklength=2.914, fc='#37c959', | |
| flows=[Hdot[9], Hdot[1], -Hdot[11], -Hdot[10]], | |
| pathlengths=[0.25, 1.543, 0.25, 0.25], | |
| labels=['', '', None, None], | |
| orientations=[0, -1, 1, -1], prior=2, connect=(2, 0)) | |
| sankey.add(patchlabel='Trap', facecolor='#37c959', trunklength=5.102, | |
| flows=[Hdot[11], -Hdot[12]], | |
| labels=['\n', None], | |
| pathlengths=[1.0, 1.01], | |
| orientations=[1, 1], prior=3, connect=(2, 0)) | |
| sankey.add(patchlabel='Steam\ngenerator', facecolor='#ff5555', | |
| flows=[Hdot[15], Hdot[10], Hdot[2], -Hdot[3], -Hdot[0]], | |
| labels=['Heat rate', '', '', None, None], | |
| pathlengths=0.25, | |
| orientations=[1, 0, -1, -1, -1], prior=3, connect=(3, 1)) | |
| sankey.add(patchlabel='\n\n\nTurbine 1', facecolor='#37c959', | |
| flows=[Hdot[0], -Hdot[16], -Hdot[1], -Hdot[2]], | |
| labels=['', None, None, None], | |
| pathlengths=[0.25, 0.153, 1.543, 0.25], | |
| orientations=[0, 1, -1, -1], prior=5, connect=(4, 0)) | |
| sankey.add(patchlabel='\n\n\nReheat', facecolor='#37c959', | |
| flows=[Hdot[2], -Hdot[2]], | |
| labels=[None, None], | |
| pathlengths=[0.725, 0.25], | |
| orientations=[-1, 0], prior=6, connect=(3, 0)) | |
| sankey.add(patchlabel='Turbine 2', trunklength=3.212, facecolor='#37c959', | |
| flows=[Hdot[3], Hdot[16], -Hdot[5], -Hdot[4], -Hdot[17]], | |
| labels=[None, 'Shaft power', None, '', 'Shaft power'], | |
| pathlengths=[0.751, 0.15, 0.25, 1.93, 0.25], | |
| orientations=[0, -1, 0, -1, 1], prior=6, connect=(1, 1)) | |
| sankey.add(patchlabel='Condenser', facecolor='#58b1fa', trunklength=1.764, | |
| flows=[Hdot[5], -Hdot[18], -Hdot[6]], | |
| labels=['', 'Heat rate', None], | |
| pathlengths=[0.45, 0.25, 0.883], | |
| orientations=[-1, 1, 0], prior=8, connect=(2, 0)) | |
| diagrams = sankey.finish() | |
| for diagram in diagrams: | |
| diagram.text.set_fontweight('bold') | |
| diagram.text.set_fontsize('10') | |
| for text in diagram.texts: | |
| text.set_fontsize('10') | |
| # Notice that the explicit connections are handled automatically, but the | |
| # implicit ones currently are not. The lengths of the paths and the trunks | |
| # must be adjusted manually, and that is a bit tricky. | |
| plt.show() | |
| # %% | |
| # | |
| # .. admonition:: References | |
| # | |
| # The use of the following functions, methods, classes and modules is shown | |
| # in this example: | |
| # | |
| # - `matplotlib.sankey` | |
| # - `matplotlib.sankey.Sankey` | |
| # - `matplotlib.sankey.Sankey.add` | |
| # - `matplotlib.sankey.Sankey.finish` | |