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Fig. 9 | BMC Chemical Engineering

Fig. 9

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

Fig. 9

Predicted Pareto frontiers for various parameter subsets of the NTP-TL model. The Pareto frontiers are for the exegetic efficiency ηex against the average power output \(\dot {W}_{\mathrm {l}}\). The subplots correspond to varying the parameters Kth (top left), Rf,Lf (top right), Rf,Lf,Cp (bottom left), and Rf,Lf,Cp,Cd (bottom right), with the other parameters kept at their nominal values in Table 2. Optimized (normalized) parameter values corresponding to the labeled points on the Pareto frontiers are reported in the tables on each subplot. The reference NIFTE design is marked with a green triangle. The CSS performance at sampled design parameters using Sobol’ sequences is displayed with orange dots

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