SIMFORGE CLASSROOMKLS GIT // 22ME41

Module 01: Air Standard Cycles (Otto, Diesel, Dual, Comparisons & Solver)

Kinematic Piston-Cylinder Twin1. Intake Stroke (Air-Fuel)
Speed:120 RPM
Synchronized P-v Indicator DiagramArea = Indicated Work (W_net)
Pv1234
$v_2v2 = v3 = V_clearance$v_1v1 = v4 = V_total
Air Standard Cycle • Spark Ignition (Petrol)

Otto Cycle Digital Twin & Analysis

The Otto cycle consists of two reversible adiabatic (isentropic) processes and two constant-volume processes.

Compression Ratio (r):8.5
r = 6 (Economy)r = 14 (Knock Bound)
Heat Addition (q_in):1200 kJ/kg
600 kJ/kg2000 kJ/kg
Thermal Efficiency
57.52%
η = 1 - 1/r^(γ-1)
Net Work Output
690.2
kJ / kg
Mean Effective Press.
9.08
bar
State Point Coordinates (VTU Exam Format):
Point 1 (Intake)
T₁: 300.0 K
P₁: 100.0 kPa
Point 2 (TDC)
T₂: 706.1 K
P₂: 2000.7 kPa
Point 3 (Combust)
T₃: 2377.4 K
P₃: 6736.1 kPa
Point 4 (Exhaust)
T₄: 1010.1 K
P₄: 336.7 kPa