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| Generic
Steady-State System Daemons |
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Single-Flow
Devices
A single
inlet-State and a single exit-State completely define the mass interaction
between the system and its surroundings. Examples of devices operating
at steady state includes nozzles, diffusers, duct flow, compressors, pumps,
turbines, condenser, evaporator etc.
An Analysis
layer is added to the States layer to solve mass, energy and entropy balance
equations. After evaluating the anchor states fully or partially, you import
them to the Analysis panel, enter the known device variables, and Calculate
up to three unknowns. A Super-Calculate iterates between the State and
Analysis panels. |
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Exergy
Analysis
After
a device analysis is complete, an exergy (availability) analysis is really
simple. You evaluate the dead-State and import it to the Exergy Panel where
all the exergy related variables are calculated and displayed. In a what-if
study, when you change a variable and update all calculations using the
Super-Calculate button, the Exergy Panel is also updated. |
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Multi-Flow
Mixing Systems
A mixing
chamber where two flows, identified by two inlet States, enter the system
at steady state, mixes and then exits through a single port (a single e-State).
Or a separation chamber (flash chamber of a refrigeration system, for instance),
where a single flow separates into two exit flows. |
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Multi-Flow
Non-Mixing Systems
Two
flows that do not mix as they pass through the system. The best example
is a closed-type heat-exchanger. Two inlet-States and two exit-States are
required to describe such systems. |
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