Fig. 3: Electricity generation of a MADG unit.
From: Moisture adsorption-desorption full cycle power generation
Schematic illustrations of the postulated working principle of a moisture adsorption power generation and b desorption power generation. c Open-circuit voltage, short-circuit current, rate of adsorbing water molecules (d(Δm)/dt) during moisture-adsorbing electricity generation under ~100% RH and 40oC. d Open-circuit voltage, short-circuit current, rate of desorbing water molecules (−d(Δm)/dt) during moisture-desorbing energy generation at ~15 ± 5% RH and 40oC. e Output power density as a function with varied electric resistances. f Comparison of output power density and internal resistance between MADG and reported moisture induced generators. g Cyclic current output of repeatable moisture adsorption and desorption power generation for MADG in a simulated dynamic ambient condition. The blue region represents adsorption process at high RH condition (90 ± 10%, 30 ± 10oC) and white region denotes desorption process at low RH environment (15 ± 5%, 30 ± 10oC). The switch point of two processes are selected at finial state of adsorption and desorption. h Voltage output of MADG device in response to switchable RH. The switch point is selected at middle state of adsorption and desorption.
