Custom1 said:Hi everyone,
What type of electrodes should I use for an AC saltwater MHD generator? I need something that is efficient yet corrosive resistant.
Thanks
Do you have access to tungsten welding rods? We used those for all kinds of plasma probes.Custom1 said:Hi everyone,
What type of electrodes should I use for an AC saltwater MHD generator? I need something that is efficient yet corrosive resistant.
Thanks
I think you should be prepared to have to experiment; what is normally thought of as being corrosion resistant my not be in the particular conditions experienced in your apparatus. (I'm making a general comment about electrodes in general.)Custom1 said:Hi everyone,
What type of electrodes should I use for an AC saltwater MHD generator? I need something that is efficient yet corrosive resistant.
Thanks
i think you should use AC so as to not plate anything out of the seawater onto your electrodes and to avoid electrolytic voltages.Any uggestions?
MHD generators use the principles of magnetohydrodynamics to convert the kinetic energy of a moving fluid, such as hot gases, into electricity. The fluid passes through a magnetic field, which induces a current in the fluid due to the movement of charged particles, creating an electrical potential.
The two main types of electrodes used in MHD generators are anode and cathode electrodes. Anode electrodes are typically made of a heat-resistant material, such as graphite, and are used to collect the positively charged particles from the fluid. Cathode electrodes are usually made of a metal, such as copper, and are used to collect the negatively charged particles.
The choice of electrodes in MHD generators depends on several factors, including the type of fluid being used, the temperature and pressure of the fluid, and the desired power output. The electrodes must also be able to withstand the high temperatures and corrosive environment of the MHD process.
Ceramic electrodes have several advantages in MHD generators, including high temperature and corrosion resistance, low thermal expansion, and good electrical insulation properties. They also have a longer lifespan compared to other electrode materials, making them a more cost-effective option in the long run.
Yes, it is possible to use different types of electrodes together in MHD generators. For example, some generators may use both anode and cathode electrodes made of different materials to optimize performance and efficiency. However, compatibility and proper installation must be considered when using different types of electrodes in the same generator.