ParticleReceiver models the heat transfer characteristics of an external tubular receiver with a user-defined geometry by employing simple energy and mass balances, an average temperature for receiver external surface, and heat transfer correlations. The receiver ParticleReceiver model has the following connectors:
- A HeatPort interface. According to the Modelica sign convention, a positive heat flow rate Q_flow (in Watts) is considered to flow into the receiver.
- A Real_input for the ambient temperature (in K).
- A BooleanInput for the operation of the field.
- An inlet FluidPort_a and an outlet FluidPort_b. Each fluid connector has three stream variables (h_outflow, Xi_outflow and C_outflow) associated with the flow variable m_flow. These variables represent the specific enthalpy, the mass fractions and the concentrations associated to m_flow <0.
The model requires to define the following parameters:a Medium package from the Media library.
- H_rcv: Receiver height, in meters. Default: 1.0 m.
- W_rcv: Receiver width, in meters. Default: 1.0 m.
- L_rcv: Receiver length(depth), in meters. Default: 1.0 m.
- th_c_in: Curtain thickness at the receiver inlet. Default: 1.0 m.
- ab: Absorptance of the curtain.
- em: Emmitance of the curtain.
- const_alpha: Boolean, true if external convective heat transfer. Default: true.
- alpha: Heat transfer coefficient due to external convection, in W/(m2.K). Default: 1.0 W/(m2.K).
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.SolarTherm.Models.CSP.CRS.Receivers.ParticleReceiver