An Induction Method For Electricity Generation At A Metal-Electrolyte Interface By A Simulated Sea Wave

With the development of human society,the demand for energy is increasing,and the search for clean and sustainable new energy has become a problem that people urgently need to solve.Wave energy is one of the most abundant energy sources in marine energy.How to use advanced technology to comprehensively utilize low-grade wave energy has become an important problem that needs to be solved urgently in the development of wave energy.Solid-liquid interface induction power generation is a new type of low-grade energy utilization technology developed in recent years.In this thesis,from the perspective of using wave energy to generate electricity,the phenomenon,mechanism and laboratory amplification of multi-metal electrode-seawater interface induction power generation are carried out.The main research contents are:(1)A laboratory study was conducted on the induction power generation of the multi-metal electrode-seawater interface,and the influence of electrode material,size and immersion depth on induction power generation was studied.The experimental results show that the seawater wetting will increase the electric potential of the power generating electrode,thereby forming a potential difference between the power generating electrode and the reference electrode,and generating a current.Compared with the single metal electrode power generation system,the multi-metal electrode can effectively improve the power generation efficiency per unit area.For a reference electrode of the same material,the magnitude of the induced current and induced voltage is independent of the size of the reference electrode.For reference electrodes of the same material and the same size,the greater the immersion depth,the greater the induced current and induced voltage.(2)The laboratory mini wave making system has been designed and built.Based on the analysis of the composition and working principle of the wave-making system and the push-plate wave-making machine,an AC servo motor is used to drive the reciprocating motion of the ball screw to control the trajectory of the push-plate;according to the wave-making ability to be realized,the water tank is calculated and determined The main parameters of the wave maker are selected and verified by experiments.The research results show that under the conditions of water depth of 20cm and servo motor speed of 3000r/min,any regular wave with a period of 0?2s and a wave height of 0?15cm can be generated,which provides a basis for simulating the wave energy induction power generation amplification experiment.(3)Using the laboratory mini wave-making system,a preliminary amplification study of the metal-seawater induction power generation technology has been carried out.The experimental results show that:under the condition that the wave period is 1.0s,as the wave height increases from 7.7cm to 15.47cm,the induced current increases from 2.7mA to 6.6mA,and the induced voltage increases from 60mV to 330mV.Under the condition that the wave period and the width of the generator electrode are fixed,the higher the wave height,the larger the area of the wave wetted the generator electrode,and the greater the induced current and induced voltage in the system.This study provides an experimental reference for further understanding of the law of induced power generation at the metal-seawater interface,and also provides new ideas for the use of wave energy for power generation.