The Expansion Engine is a vertical single acting reciprocating type engine.
SANGHI - ORG Expansion Engine
SANGHI - ORG High Pressure Expansion Engine
The Electric Motor is used initially to start the machine. Thereafter the engine is moved by the air pressure itself and during which time, the engine motor retains the speed by acting as a brake. Since work is done by air in rotating the Flywheel, it loses its heat content (enthalpy). Thus the air gets cooled. This cooling is more than that of an expansion in an expansion valve.
The Expansion Engine can be considered as three major units:
a. The drive unit.
b. The Cylinder Unit for air expansion and
c. The Hydraulic Systems for operating the Valves.
The High Pressure Expansion Engine is used for liquid Plants.
| TECHNICAL DATA | SANGHI-ORG 80 | SANGHI-ORG 100 | SANGHI-ORG 200 | SANGHI-ORG 300 |
| Type of Expansion Engine | SEM 0.5/1 | SEM 0.5/1 | SEM 0.5/1 | SEM 0.5/1 |
| No. of Cylinders | 1 | 1 | 2 | 2 |
| Diameter of Cylinder Bore | 70 mm | 80 mm | 85 mm | 90 mm |
| Piston Stroke | 125 mm | 125 mm | 125 mm | 125 mm |
| Speed | 210 RPM | 210 RPM | 210 RPM | 210 RPM |
| Inlet Air Pressure | 60 kgs/cm2 | 60kgs/cm2 | 60kgs/cm2 | 60kgs/cm2 |
| Outlet Air Pressure | 5 kgs/cm2 | 5 kgs/cm2 | 5 kgs/cm2 | 5 kgs/cm2 |
| Throughput Volume at 60 kgs/cm2 and 80 C (about) | 300 Ncu.m./Hr | 400 Ncu.m./Hr | 560 Ncu.m./Hr | 828 NM3./Hr |
| Throughput Volume at 50 kgs/cm2 and -750 C (about) | 120-390 Ncu.m./Hr |
200-400 Ncu.m./Hr |
400-560 Ncu.m./Hr |
550-830 NM3/hr. |
| Inlet Valve opening time cam setting position | 8 | 8 | 8 | 8 |
| Power required or supplied | 7.5 KW | 7.5 KW | 15 KW | 30 KW |
| Piston Head Clear | 1.2 - or + 0.2 mm | 1.2 -or + 0.2 mm | 1.2 -or + 0.2 mm | 1.2 + 0.2 mm |
| Inlet Valve Pestel Clearance | 0.4 to 0.5 mm | 0.4 to 0.5 mm | 0.4 to 0.5 mm | 0.4 to 0.5 mm |
| Outlet Valve Pestel Clearence | 0.3 to 0.4 mm | 0.3 to 0.4 mm | 0.3 to 0.4 mm | 0.3 to 0.4 mm |
