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Table 3 Asymptotic stability and performance of a NIFTE with nominal parameter values (Table 2), except Lf=4.74×105 kg m−4 s−1

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

  1. The eigenvalues causing instability are shown in red. The period, exergetic efficiency, power output and thermal input of the cyclic steady states are also reported for comparison. CSS1: stable limit cycle of NTP model. CSS2 unstable limit cycle of NTP model. CSS1’: (unique) stable limit cycle of NTP-TL model. The origin is an unstable equilibrium point of both NTP and NTP-TL models