🔄 Rotary Twin-Screw Compressor Sizer
Size industrial rotary twin-screw compressors: built-in volume ratio Vi matching, over/under-compression losses, oil injection cooling, and shaft power demand.
⚡ Fortran 90 Engine
Double Precision (IEEE 754)
✓ ISO / ASME Validated
📊 Solver Telemetry
● ACTIVE
👁️ Consultations
31
⚡ Calculs faits
24
💾 Téléchargements
353
📦 Code Fortran
5.2 KB
📅 Mise en service
Jun 2026
⏱️ Latence
< 1 ms
🔄 Intermeshing Male/Female Helical Screw Rotors & Oil Spray
Real-time visual simulation: Suction pocket trapping, continuous screw meshing compression, and oil cooling📝 Configuration & Presets
Twin-Screw Compressor Formulation:
• Built-in Pressure Ratio: Πi = Vik
• Indicator Work: Wind = [k/(k−1)]·P1·V1·[Vik−1−1] + (P2−Πi·P1)·(V1/Vi) [kW]
• Shaft Power: Pshaft = Wind / 0.92 [kW]
• Oil Cooling: controls discharge temperature to ~75–90°C.
• Built-in Pressure Ratio: Πi = Vik
• Indicator Work: Wind = [k/(k−1)]·P1·V1·[Vik−1−1] + (P2−Πi·P1)·(V1/Vi) [kW]
• Shaft Power: Pshaft = Wind / 0.92 [kW]
• Oil Cooling: controls discharge temperature to ~75–90°C.
📊 Performance Results
Configure inputs and click Compute to view results.
📘 Calculation Methodology & Screw Compressor Standards
Built-in Volume Ratio ($V_i$) & Indicator Losses
Twin screw compressors have a fixed internal volume ratio $V_i$. If the system pressure ratio differs from $V_i^k$, thermodynamic over-compression or under-compression indicator losses occur upon discharge port opening.
Oil Injection & Temperature Control
Oil flooded into the compression pocket seals rotor clearances and absorbs over 80% of the compression work, keeping discharge gas temperatures well below $100^\circ\text{C}$.
Key Engineering Assumptions
- ISO 1217 positive displacement compressor standards.
- API 619 oil-injected rotary screw compressor design.
- Widely used in industrial plant air systems, ammonia cold storage, and biogas boosting.