The effect of coating concentration of curcumin: H2O on copper winding characteristics

Abstract

Each coil of copper produces a magnetic field and the total field inside the solenoid will be the sum of the fields caused by each coil of current. If the solenoid coils are very closely spaced, the internal field will be essentially parallel to the axis except at the very ends. To find out the magnitude of the magnetic field inside the solenoid, you can use Ampere’s law, namely B=μo∙N∙I, where B is the magnetic field strength (T), µo is air permeability (4×10‒7 T m/A), N is the number of turns and I is an electric current. The value of B depends on the number of turns per unit length, N, and current I. The field is independent of the position inside the solenoid, so the value of B is uniform. This only applies to infinite solenoids, but is a good approximation for actual points that are not near the ends of the solenoid. The research object is 4 identical copper coils with a length of 3 cm, a coil diameter of 2 cm, a cross section of 1.5 mm2 with an inductance value of 2.17 µH. Before coating curcumin on the copper winding, the initial value of the magnetic field strength was 2.54 µTesla. After the coating process of curcumin:H2O concentration, the value of the magnetic field strength increased. The method used was immersing 4 copper coils with an inductance value of 2.17 µH in curcumin:H2O concentration in a 100 ml volume measuring cup, with the respective concentrations: (20 %:80 %), (40 %:60 %), (60 %:40 %), (80 %:20 %) in a certain time. Then the copper coil conductor is supplied with a 5-volt DC voltage source. Then the value of the magnetic field strength (B) and electric current is measured, the results are compared with the system before immersing the copper coil. The measurement results showed that the values of electric current and magnetic field strength increased after curcumin coating compared to before treatment. To see the bonding performance of curcumin and copper, the FTIR test and simulation of the curcumin: copper bond were carried out using Avogadro software. In the IR test, there is a strong absorption of aromatic C-C from 1,650 cm-1 to 1,500 cm-1. Whereas in the simulation, the bond between copper and curcumin produces a bond energy of 164.532 kJ/mol or equivalent to 171.12×10-2 eV

Implementation of curcumin concentration coating to improve power efficiency in wireless power transfer

“…Under these conditions this structure appears spontaneously in benzene in the absence of an applied magnetic field. This can be ascribed to arising from π -fluxes of opposite sign affecting the up and down states of electrons and paralleling the behavior predicted for superconductors by the theory of hole superconductivity [15]. Consider a coordinate system rotation with an angle ϕ = π/3 about the selected z-axis perpendicular to the plane of the aromatic ring.…”

“…7, there is a relationship between the Hamiltonian transformation, electron movement, energy and DFT grid generation. In a previous study on coating curcumin:H 2 O concentrations on copper solenoid windings, it was found that when coating curcumin:H 2 O concentrations of 80 %, there was an increase in the value of the electric current flowing in the copper winding and an increase in the magnetic field strength around the copper [15].…”

“…2. Diagram concept of the research: a -the process of immersing copper coils in curcumin:H 2 O concentration; b -applying copper coils that have been soaked in curcumin:H 2 Oconcentrations in a wireless power transfer system circuit; c -curcumin compounds:copper with two aromatic rings; d -the configuration of the aromatic ring in curcumin[15]…”