Fig. 4: Cooling power of the roller-driven eC refrigerator. | Nature Communications

Fig. 4: Cooling power of the roller-driven eC refrigerator.

From: Efficient roller-driven elastocaloric refrigerator

Fig. 4

a pull-down temperature profile of NiTi and TiNiCu ribbons at 0.17 Hz when the heat sink is actively cooled by ambient air. b frequency-dependent cooling powers at zero temperature span using baseline NiTi ribbons. c Comparison of NiTi and TiNiCu on the cooling performance map at 0.17 Hz. d simulated cooling power with different NiTi mass ratios at 0.17 Hz and zero temperature span. Mass ratio is the mass between SMA#2 (high-temperature stage) and SMA#1 (low-temperature stage). Error bars represent the measurement uncertainty of temperature span or cooling power (see uncertainty analysis section in Supplementary Information).

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