The Component ORC Unit
The ORC Unit component compactly maps an Organic Rankine Cycle. In this cycle, the energy from a waste heat source is used to operate a steam turbine and generate electricity. Because the working medium, in contrast to the classical steam power process, is not water but an organic liquid, waste heat from lower temperatures can also be used due to the lower evaporation temperature.
Component Template
The ORC_Unit.e-ctpl component template is located in the Component template library folder Electricity Supply.
Integration Into a Scheme
How the Component Works
Input values for the component are the Electrical Power and the drive Thermal Power in the Nominal state. In order to map the electricity demand, e.g., for the condensate pump or other system technology, the electrical Relative Self Consumption must be indicated in %.
The Temperature Coefficient to be entered describes efficiency losses caused by the operation of the system with drive temperatures other than the Nominal Inlet Temperature. The actual electrical power is reduced by the Temperature Coefficient \( k \) as shown in the following formula:
\( \begin{equation} \begin{aligned} P_{el\ actual}= P_{el\ nominal \ temperature} \cdot (1-k) \end{aligned}\end{equation}\).
The nominal efficiencies are calculated and displayed in the Output Data. The Output Data also contain the Carnot Efficiency, which represents the maximum thermodynamically possible efficiency at the prevailing inlet temperature. This should always be above the actual electrical efficiency, otherwise correct the Input Data.
