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Fig. 2 | BMC Chemical Engineering

Fig. 2

From: Optimization-based investigations of a two-phase thermofluidic oscillator for low-grade heat conversion

Fig. 2

Complete NIFTE circuit. Ri denotes a resistance, Ci a capacitance, Li an inductance, Pi a pressure, and Ui a volumetric flowrate. The subscript th denotes the thermal domain, ad the adiabatic domain, l the load, p the power cylinder, d the displacer (heat-exchanger) cylinder, and f the combined effect of the feedback connection and/or valve. The components in red relate to the part of the circuit describing irreversible thermal losses, only relevant to the NTP-TL model

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