Views: 0 Author: Site Editor Publish Time: 2026-06-17 Origin: Site
High-pressure stainless steel CO₂ gas cooler, engineered for transcritical CO₂ refrigeration and high-efficiency heat pump systems. It delivers reliable, eco-friendly heat rejection while withstanding extreme pressures and temperatures in industrial, commercial, and renewable energy applications.
Working Principle
In transcritical CO₂ cycles, supercritical CO₂ (high pressure, no phase change) enters the gas cooler at 80–120 bar and 90–150°C. Ambient air (or water) flows across stainless steel finned coils, removing heat via forced convection. The cooled CO₂ exits at 35–50°C and remains above critical pressure, ready for expansion. The process is a closed, dry, waterless loop with zero refrigerant loss.
Core Advantages
1. Full Stainless Steel Construction
304L/316L stainless steel tubes and fins (standard), corrosion-resistant for harsh industrial and coastal environments.
High-pressure design: Rated for 120 bar (gas cooler) / 60 bar (desuperheater), safely handling transcritical CO₂.
Leak-proof: Fully automated orbital welding, helium leak tested; eliminates copper-CO₂ galvanic corrosion.
2. Eco-Friendly Natural Refrigerant
Zero ODP, GWP = 1: CO₂ complies with F-Gas, EPA, and carbon neutrality goals.
Non-flammable (Class A1): Safe for food processing, pharmaceuticals, and occupied spaces.
3. High Thermal Efficiency
Enhanced fin geometry (CFD-optimized) increases heat transfer by 25%+ vs. standard coils.
Low air-side pressure drop: Reduces fan energy use by 30%; ideal for VFD control.
Approach temperature as low as 3 K: Maximizes heat recovery for hot water/process heating.
4. Intelligent & Durable Operation
VFD fan motors: EC or NEMA premium efficiency; auto-adjust speed based on CO₂ inlet temp.
Modular design: Flat/V-shape configurations; horizontal/vertical installation; 1–5 fans per unit.
Low maintenance: No water treatment, no scaling, no oil emulsification; 50-year service life.
Applications
Industrial Heat Pumps: High-temperature process heating, district heating, waste heat recovery.
Commercial Refrigeration: Supermarket racks, cold storage, food processing plants.
Renewable Energy: Solar-assisted heat pumps, geothermal CO₂ systems.
Transport & Marine: Container refrigeration, ship HVAC, offshore platform cooling.
Customization
Tailor coil size, fin spacing, and circuiting to cooling load, ΔT, and installation space.
Add heat recovery sections for domestic hot water or process heat.
Configure VFD control panels with Modbus/BACnet communication.
Provide thermal calculation, 3D layout, and on-site installation guidance.
