Abstract
Small sparks or electric arcs referred to as microwave discharge are generally observed, when the metals are subjected to microwave irradiation. The dynamic characteristics of microwave-induced metal discharge in the work were evaluated by the evolution of discharge intensity, measured using photo-voltage conversion method. An energy analysis method of hydro-thermal exchange was used to measure the generated heat from microwave discharge. The performances of microwave-induced metal discharge were connected to microwave power, metal spices, size and quantity. It was revealed iron exhibited more favorable discharge performance than aluminum and copper. The discharge intensity of iron was 1.66 times and 1.22 times that of aluminum and copper, respectively. The increase of microwave power from 320 W to 480 W led to an enhancement of discharge duration, extending from 5.75 min to 7.25 min. The discharge intensity in the presence of three wires of iron increased by 44.6%, compared to that in the presence of one wire of iron. In spite of an appreciable decrease of discharge intensity with the increase of time, microwave discharge could improve the efficiency from electric energy conversion into heat energy to 48.41%, when utilizing one wire of iron with the length of 4 cm and the diameter of 1 mm at 480 W. The changes of the generated heat with discharge intensity conformed to a stepped attenuation relationship.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
