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Include the remaining figures
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fwitte committed Oct 20, 2024
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Expand Up @@ -25,7 +25,8 @@ Overview
In this tutorial we will build a combined heat and power plant utilizing flue
gas (e.g. from a gas turbine) to generate process steam and electricity. The
figure above shows the structure of the system and the 4 steps we take to build
the system.
the system. The challenge here lies in the complexity of the system. With a
well-structured approach the problem can be tackled.

It is a simplified version of an actual plant with some unique features:

Expand All @@ -43,15 +44,37 @@ It is a simplified version of an actual plant with some unique features:
steaming.
- The sweetwater condenser is a solution for HP steam desuperheating.

...

- Table on boundary conditions
- Table on assumptions

....

The challenge here lies in the complexity of the system. With a well-structured
approach the problem can be tackled.
The table below indicate the most important boundary conditions.

+---------------------+---------------+-------+------+
| Location | Parameter | Value | Unit |
+=====================+===============+=======+======+
| process steam | :code:`m` | 160 | t/h |
+ +---------------+-------+------+
| | :code:`Td_bp` | 10 | °C |
+ +---------------+-------+------+
| | :code:`p` | 13 | bar |
+---------------------+---------------+-------+------+
| live steam | :code:`T` | 480 | °C |
+ +---------------+-------+------+
| | :code:`p` | 88.5 | bar |
+---------------------+---------------+-------+------+
| gas turbine exhaust | :code:`T` | 720 | °C |
+---------------------+---------------+-------+------+

And the most important component parameters:

+----------------------+---------------+-------+------+
| Component | Parameter | Value | Unit |
+======================+===============+=======+======+
| turbines | :code:`eta_s` | 90 | % |
+----------------------+---------------+-------+------+
| pumps | :code:`eta_s` | 70 | % |
+----------------------+---------------+-------+------+
| heat exchangers | :code:`pr` | 100 | % |
+----------------------+---------------+-------+------+
| feed water preheater | :code:`pr` | 90 | % |
+----------------------+---------------+-------+------+

Steam supply and turbine section
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Expand Down Expand Up @@ -121,12 +144,62 @@ condensate. The remaining mass flow is replaced by the makeup water.

For the components we can specify the isentropic efficiencies of the turbines
and the pumps as well as the pressure ratio of the condensing turbine inlet
valve as well as the condenser pressure loss.
valve as well as the condenser pressure loss. Then we solve the system and
with the first solution, the extraction mass flow can be unset and instead, the
actual process steam mass flow is specified.

.. literalinclude:: /../tutorial/advanced/hrsg.py
:language: python
:start-after: [sec_5]
:end-before: [sec_6]

Low pressure preheating and high pressure economizer
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. figure:: /_static/images/tutorials/hrsg_steam_supply/flowsheet_p2.svg
:align: center
:alt: Second part of the system
:figclass: only-light

Figure: Second part of the system

.. figure:: /_static/images/tutorials/hrsg_steam_supply/flowsheet_p2_darkmode.svg
:align: center
:alt: Second part of the system
:figclass: only-dark

Figure: Second part of the system

Completing the Rankine cycle
^^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. figure:: /_static/images/tutorials/hrsg_steam_supply/flowsheet_p3.svg
:align: center
:alt: Third part of the system
:figclass: only-light

Figure: Third part of the system

.. figure:: /_static/images/tutorials/hrsg_steam_supply/flowsheet_p3_darkmode.svg
:align: center
:alt: Third part of the system
:figclass: only-dark

Figure: Third part of the system

Adding the exhaust gas
^^^^^^^^^^^^^^^^^^^^^^

.. figure:: /_static/images/tutorials/hrsg_steam_supply/flowsheet.svg
:align: center
:alt: Complete system
:figclass: only-light

Figure: Complete system

.. figure:: /_static/images/tutorials/hrsg_steam_supply/flowsheet_darkmode.svg
:align: center
:alt: First part of the system
:figclass: only-dark

More to follow
Figure: Complete system

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