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CO₂ Heat Pump: Revolutionizing Sustainable Heating with Natural Refrigerant Technology
July 15, 2025
CO₂ Heat Pump: Revolutionizing Sustainable Heating with Natural Refrigerant Technology
Core Technology: Harnessing Nature’s Power for Extreme Performance
Leomon’s CO₂ heat pump operates on an innovative transcritical cycle:
The compressor draws in low-temperature, low-pressure CO₂ gas from the evaporator, compressing it into a high-temperature, high-pressure supercritical fluid. This fluid releases massive heat in the gas cooler, heating water to temperatures up to 90°C for hot water systems or 75°C for space heating.
After throttling, the refrigerant absorbs ambient heat (even at -35°C) via the evaporator, completing the cycle efficiently.
This design ensures consistent operation across a wide ambient temperature range of -35°C to 43°C, outperforming traditional heat pumps in extreme cold.
Key Advantages: Where Sustainability Meets Reliability
Eco-Friendly by Design: CO₂ refrigerant boasts ODP=0 and GWP=1, making it non-toxic, non-flammable, and fully compliant with global environmental regulations (e.g., EU F-Gas and China’s “Dual Carbon” policies). It eliminates the carbon footprint of fossil fuel boilers, reducing emissions by up to 70%.
Exceptional Temperature Versatility:
Hot water systems produce up to 90°C water, even at -20°C ambient temperature, ideal for industrial cleaning and commercial use.
Heating systems deliver 65°C/45°C supply/return water, compatible with radiators, maintaining indoor temperatures of 20°C+ in -35°C environments.
High Efficiency Across Climates: Achieves a COP of 4.5 under standard conditions and remains above 2.0 in low-temperature scenarios. For example, a 20HP unit in a coal mine area provides 60°C hot water with an annual average COP of 3.8, slashing energy costs by 50% compared to electric boilers.
Smart & Low-Maintenance Operation: Equipped with a color touchscreen and 5G cloud-based control system, enabling remote monitoring, fault alerts, and temperature adjustments via mobile app. Modular designs and self-cleaning components ensure a 15+ year lifespan with minimal upkeep.
Versatile Applications: From Industrial Sites to Residential Complexes
Industrial & Commercial Hot Water:
Factories: Supplies 75–90°C water for parts cleaning (e.g., Singapore factory project with 10HP units achieving combined cooling and heating efficiency of 8.0).
Hospitality & Healthcare: Supports 700–800 daily meals in industrial canteens or 20 tons of 60°C water daily for university dormitories.
Extreme Cold Heating:
Railway bureaus and mining areas: Maintains 20°C indoor temperatures in -40°C winters using radiators (e.g., a 21,341㎡ heating project in China’s frigid regions).
Residential & Commercial Buildings: Replaces coal boilers in cold regions like Inner Mongolia and Heilongjiang, ensuring reliable warmth with lower operating costs.
Specialized Uses: Ideal for food drying (85°C water), hot spring resorts (50–55°C secondary heat exchange), and wastewater treatment, adapting to diverse industrial needs.
Project Case Studies
Railway Bureau Heating (China): SJKRF-120II/C units operate at -30°C with a COP of 1.8, heating 21,341㎡ via radiators.
Coal Mine Hot Water: A 20HP unit replaces coal boilers, supplying 60°C water to miners with annual energy savings of 3.8x compared to electric heaters.
Singapore Industrial Cleaning: 10HP units produce 75°C pure water while providing on-site cooling, achieving a comprehensive energy efficiency of 8.0.
“Leomon’s CO₂ heat pumps redefine what’s possible in sustainable heating,” said a company spokesperson. “Whether in the freezing winters of northern China or the tropical industrial hubs of Southeast Asia, they deliver consistent performance while aligning with global decarbonization goals.”
