Question

Write minimum 20 comparsions between ELECTROMAGNETIC PUMP & ELECTROMAGNETIC REACTORS?

 

 

Answer 1

ELECTROMGNETIC PUMP	ELECTROMAGNETIC REACTORS
An electromagnetic pump is a pump that moves liquid metal by the use of Electromagnetism. Liquid metal acts as a conductor.	A reactor is an iron core with a copper wire coil wound around it. The reactor is the core component of voltage conversion, which stores and emits energy in alternation by running a current through the coil.
The working of Electromagnetic pump based on Fleming’s Left Hand rule.	The working is based on basic Electromagnetism Principles and Reactor.
Current flowing vertically through the liquid metal experiences the force F= L*B along the tube.	inductance during tool development WILL BE B max = LI max /NS
Conduction pump- current is directly conducted into the fluid through electrodes. Two variants, A.C & D.C	Following the basic electromagnetic design step to determine the reactor’s rough size, detailed electromagnetic design was performed to calculate inductance and loss (AC resistance loss, iron loss).
Induction pump- current in the conducting fluid is induced by travelling magnetic field.
Thermoelectric pump- current flowing through the liquid metal is derived directly from the thermal power contained in the hot liquid-metal flow.	When designing a reactor, the most important factors to consider are inductance, which is a necessary parameter for voltage conversion, and loss that affects fuel consumption.
Two main Application will be Cooling of nuclear reactor. Pouring and transportation of high temperature metals in foundry.	In electromagnetic design, inductance and size is found in 2 steps: basic design and detailed design. By using our original development tool to obtain the rough size during the basic design step, this design method enables us to shorten the design period.
Working: The electrical current is induced by transformer action. The transformer’s primary coil T in figure is connected to an AC single-phase-power source. The transformer pole pieces are arranged in the shape of a picture frame and serve as the carrier of magnetic flux.	Working: When designing a reactor, the most important factors to consider are inductance, which is a necessary parameter for voltage conversion, and loss that affects fuel consumption. There are methods to measure inductance accurately; however, loss cannot be measured accurately because of the large phase error between current and voltage caused by the low phase factor of the reactor. Since loss is converted to heat when a current is applied to the reactor, we examined the consistency between the designed values and measured values of the reactor temperature to assess the validity of the loss design value as an alternate method to measure loss.
The turns ratio amplifies the electrical input current to produce very high amperage in the moltem metal.	The core physical values (hysteresis loss coefficient, eddy-current loss coefficient, and amplitude of magnetic flux density) required for equation differs depending on the material. Generally, the reactor core materials are magnetic steel plate, ferrite, and amorphous, but in this report we will discuss the results based on our study which utilized our original powder core (pure iron or Fe-Si based powder coated with insulation then press formed) and coil wire material. We were able to enhance the design accuracy by using the known detailed physical values of these main materials
Pump output Q varied by controlling input power and can be regulated from almost drop-wise flow up to full bore delivery.
This pump surrounded by encapsulated ceramic parts to protect it from molten metal contact.	The structure consists of a reactor, power semiconductor, condenser and the circuits which drive these components
No moving parts, no vibrations or wear and tear	One advantage to using an electromagnetic energy source is that, depending upon the electromechanical device used, you don’t need an external electrical source to generate electrical power.
No seals, no spills.	When rotational mechanical energy turns a coil inside of the generator, it exposes that coil to changes in magnetic field. Those changes induce the production of alternating current voltage – voltage where the current changes directions with a certain frequency – between the two output ends of the coil.
Less maintenance and more reliable.	Another advantage of using an electromagnetic energy source is that you can generate either AC or direct-current (DC) electrical power. As noted before, an AC generator uses changing magnetic fields to create AC electrical power.
Power losses due to back EMF, Ohmic heating Limites.	Electromagnetic power sources may not be as useful, or can perhaps be dangerous to use, under certain circumstances. For instance, if you need to have a power source that must have a regulated current output, both AC and DC power generators would need to be run at a non-varying speed. Further, while a DC power generator produces electrical current that flows in one direction, the electrical current is irregular.
Limited uses since very few liquids are good conductors of electricity.	Since generators use electromagnetic fields to produce electricity, these fields can be dangerous to some people who use sensitive medical equipment, such as pacemakers. These same electromagnetic fields can also interfere with other electrical and electronic devices, such as cell phones and computers.

Electromagnetic Pump