Fig. 2From: Optimization-based investigations of a two-phase thermofluidic oscillator for low-grade heat conversionComplete 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 modelBack to article page