Table 1 Parameters used for droplet electric generation loss analysis in Fig. 5
From: Hydrodynamic constraints on the energy efficiency of droplet electricity generators
Case | Volume | Impact speed | Dielectric | Surface charge | A(t) | E0 | \({{\mathcal{E}}}_{\max }\) | Extracted energy (model) | Extracted energy (experiment) |
|---|---|---|---|---|---|---|---|---|---|
|  | (μl) | (m/s) |  | (mC/m2) |  | (μJ) | (μJ) | (%) | (%) |
(X1) | 100 | 0.1 | PTFE (16 μm) | 0.17 | Simulated | 0.2 | 7.3 | 3.43 | / |
(X2) | 100 | 0.3 | PTFE (16 μm) | 0.17 | Simulated | 0.2 | 11.3 | 2.88 | / |
(X3) | 100 | 0.5 | PTFE (16 μm) | 0.17 | Simulated | 0.3 | 19.2 | 1.91 | / |
(X4) | 100 | 0.7 | PTFE (16 μm) | 0.17 | Simulated | 0.4 | 31.2 | 1.71 | / |
(X5) | 100 | 1.7 | PTFE (16 μm) | 0.17 | Experimental1 | 3.4 | 150.1 | 3.08 | 2.2 |
(W1) | 33 | 1.0 | SiO2 (300 nm) and PTFE (900 nm) | 0.35 | Experimental2 | 0.2 | 19.4 | 1.27 | 2.5 |
(W2) | 33 | 1.0 | SiO2 (400 nm) and Cytop (400 nm) | 1.15 | Experimental4 | 1.0 | 19.4 | 6.76 | 11.8 |
(W3) | 33 | 1.0 | SiO2 (400 nm) and Cytop (120 nm) | 1.80 | Experimental4 | 1.3 | 19.4 | 8.26 | 11.8 |
