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HỘI THẢO QUỐC TẾ ATiGB LẦN THỨ CHÍN - The 9 ATiGB 2024 183

n D p T kg Then the energy of electricity will be converted
R = × × ×d × × 0 ( ) (1) into two forms: One is the heat that radiates into the
m v 0
60 2 p T s environment, and the other is the electric field energy:
0
In there: D: Cylinder capacity 163 cm = 1,63.10 1 B 2
3
-4
m [8], n: Number of crankshaft revolutions at w = × ×V (5)
3
m
3600 rpm [1]. Because during the loading process, the 2 .   0
air volume will not be fully loaded in comparison to
the theoretical data, the load performance ηv and the In there: V is the volume of the wire tube, B is
air weight ratio d0 must be taken into account. magnetic susceptibility, µ is relative magnetic
permeability, μ 0 is magnetic constant.
The flow of syngas loaded into the combustion
chamber depends heavily on the pressure and In the process of creating magnetic fields inside
temperature at the end of the exhaust stroke and at the the solenoid coil, quantities such as voltage, current
beginning of the intake stroke is P 0 and T0. And and electromagnetism are closely related. This is
parameters such as P, T are the pressure and described by the following equation:
temperature at the end of the intake stroke, this is the
parameter that evaluates the full charge level and v =Ri× d (6)
performance stroke in each engine cycle. 0 dt
The equation calculates the amount of fuel In there:  is the total of the magnetic flux in the
injected into a cylinder: [7]
whole block, v is the voltage that supplies the coil, R
0
R is the resistance of the coil, i is the power supply for
m = m (kg) (2)
syngas A/F the nozzle.
d
The following formula represents the total
In there: Because Syngas is a poor fuel, the syngas magnetic flux in the entire block  containing the
A/Fd ratio is very small =1.2, [1]. Rm: Air flow in coil, proportional to the magnetic flux of the coil φ:
mass.

Syngas mass calculation equation [7]:  = N× (kg) (7)
Accordingly, the formula (5) can be rewritten as:
2. p
m   ×A × .T ( kg ) (3) d
syngas syngas ff  m v =Ri+N× (8)
syngas 0 dt
In there: ρ in the density of syngas, γ là In addition, the relationship between magnetic
syngas syngas
flux and current is represented as a function of the
syngas's own weight, A : It's useful open acreage of
ff current:
the nozzle needle,  : The amount of pressure
( ) i (9)
p  = L x
increases during the intake stroke, T m: Spray opening
time. In this part of the study, the team calculated In there: ( ) x Inductance of the wire. Combining
L
ρ and γ : calculated according to the
syngas syngas the equations (5) and (7), we get the relationship
composition of Syngas as follows: 15-20% H2, between voltage and current written as follows:
15-20% CO, 1-5% CH4, 10-15% CO2, the rest is N2.
[2] di dL ( ) x dx
Equation to calculate magnetic susceptibility in v =Ri+L ( ) x . +i  (10)
0
the solenoid coil [6]: dt dx dt
N di 1 dL ( ) x dx
B =  . .n.I =  . . .I (4) = ×[ v -Ri-i× × ] (11)
0 0 l dt L(x) 0 dx dt
In there: B: Magnetic susceptibility from inside Combining the equations above us gives the
the coil, I: Power supply intensity for the coil, N is following results:
total number of wire rings wrapped on the valve body,
( )
( )
l: the length of the wire pipe, n is number of wire 1 1 1 2
i,x
i,x = 
rings on a unit length of the wire pipe, µ: relative W m ( ) ( ) di= L x idi= i .l x (12)


magnetic permeability, μ_0: is magnetic constant. 0 0 2
ISBN: 978-604-80-9779-0