See how Dream's PMVF Two-Stage Air Compressor reduced energy costs by 25% for a power equipment manufacturer. Real-world efficiency gains revealed.
Case Study: DREAM DHV-90Z PMVF Two-Stage Compressor Drives 25% Energy Savings for Power Equipment Manufacturer
Client: Jiangsu Power Equipment Co.
Industry: Industrial Manufacturing
Solution: DREAM DHV-90Z Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor
The Challenge: High Energy Costs from Compressed Air Systems
Compressed air – often called the "fourth utility" – accounted for a significant portion of operational costs at this Chinese power equipment facility. With sustainability targets and rising electricity prices, the company needed to:
- Reduce energy waste from outdated compressors
- Stabilize air supply pressure for production consistency
- Lower total cost of ownership (TCO) while meeting ESG goals
The Solution: DREAM’s Energy-Optimized Two-Stage Technology
After thorough technical evaluation, Jiangsu Power selected DREAM’s DHV-90Z PMVF Two-Stage Screw Compressor for its proven efficiency advantages:
Core Energy-Saving Technologies:
✅ Permanent Magnet Synchronous Motor
- 8–15% higher efficiency vs. standard induction motors
- Higher power factor (>0.95) reduces reactive power loss
- Near-zero idle consumption
✅ Intelligent Variable Frequency Drive (VFD)
- Real-time motor speed adjustment to match air demand
- Eliminates unloading/loading cycles (saving 20–40% wasted energy)
- Maintains ±0.1 bar pressure stability
✅ Two-Stage Compression with Intercooling
- Dual compression reduces work input by 12–15% vs. single-stage
- Intermediate cooling lowers discharge temperature by 30°C
- Optimized specific power (kW/CFM) for higher volumetric efficiency
✅ Integrated System Design
- Low-pressure-drop airflow path
- High-efficiency cooling system
- Compact footprint with vibration damping
Documented Results: Operational & Financial Impact
Within 3 months of installation:
| Metric | Improvement | Financial Impact |
|---|---|---|
| Energy Consumption | ↓25% | $10,000+ annual savings |
| Power Factor | ↑0.98 | Reduced utility penalties |
| Noise Levels | ↓8 dBA | Improved OSHA compliance |
| Pressure Stability | ±0.1 bar | Fewer product defects |
Additional Benefits:
- Reduced carbon footprint (est. 45 tons CO2/year)
- Predictive maintenance via remote monitoring
- 98% uptime with DREAM’s premium service support
Why This Matters for Industrial Operators
"The DREAM DHV-90Z wasn’t just a compressor upgrade – it transformed our energy profile," noted the plant manager. "The 25% power reduction exceeded our ROI projections while delivering smoother production flow."
Technical Specifications: DREAM DHV-90Z
- Flow Rate:90 CFM (16 m³/min)
- Working Pressure:8–13 bar
- Motor:IE5 PMSM (Permanent Magnet Synchronous)
- Noise:68±2 dBA
- Certifications:ISO, CE
Partner for Sustainable Compressed Air
DREAM Gas Equipment continues to advance energy-efficient air solutions for global manufacturers. Our two-stage compressor technology delivers:
- Lowest life cycle cost per CFM
- Carbon reduction alignment
Ready to optimize your compressed air system?
[Contact DREAM Engineers for a free energy audit]
WhatsApp: 86-136 7155 1445
E-mail: [email protected]
