Numerical Study on the Required Surrounding Gas Conditions for Stable Autoignition of an Ethanol Spray

Table 2

Comparison of specification between the combustion chamber and the computational domain.

Specification	Constant-volume chamber	Simple constant-volume chamber model
Chamber size (φ × H)	150 mm × 420 mm	82.6 mm × 200 mm
Volume	7250 cc	1072 cc
Injection pressure	50 MPa
Injection duration	4.6 ms
Injector nozzle type (Φ (diameter) × N (number))	Hole type (0.14 mm × 1)