The use of ammonia as a refrigerant dates back to the mid-19th century, with its first application in industrial refrigeration systems around 1876, thanks to the pioneering work of German engineer Carl von Linde. Recognising ammonia’s remarkable thermodynamic properties, Linde developed the first practical refrigeration machine using ammonia, revolutionising cold storage and food preservation industries.

Since then, ammonia has become the refrigerant of choice for large-scale operations, including cold storage warehouses, food processing plants, beverage production facilities, and chemical manufacturing, due to its unparalleled efficiency and low environmental impact.

Anhydrous ammonia’s versatility makes it a preferred refrigerant across various industries, particularly in applications where large-scale, energy-efficient cooling is essential.

Food Processing & Cold Storage:

Meat processing plants, dairy facilities, seafood storage, and frozen food production rely on ammonia systems for precise temperature control and rapid cooling.

Beverage Industry:

Used in breweries, soft drink plants, and bottling facilities for process cooling and carbonation.

Pharmaceuticals & Chemical Manufacturing:

Provides reliable refrigeration for temperature-sensitive products, including vaccines, chemicals, and solvents. 

Ice Rinks & Recreational Facilities:

Ammonia’s efficiency at low temperatures makes it ideal for ice rinks, curling arenas, and sports complexes.

Petrochemical & Industrial Gas Sectors:

Employed for process cooling in refineries, chemical plants, and industrial gas production facilities.

Energy Efficiency:
Ammonia has a high latent heat of vaporisation and superior thermodynamic properties, which result in lower energy consumption compared to synthetic refrigerants. This translates to significant cost savings over the lifespan of refrigeration systems.

Cost-Effectiveness:
Ammonia systems are more compact due to its efficient cooling capabilities, requiring smaller pipe sizes, heat exchangers, and compressors. This reduces both initial capital expenditure and ongoing maintenance costs.

Environmental Sustainability:
With an Ozone Depletion Potential (ODP) of zero and a Global Warming Potential (GWP) of zero, ammonia is one of the most environmentally friendly refrigerants available. It aligns with global environmental regulations, including the Montreal Protocol and F-Gas regulations, making it a future-proof choice for businesses committed to sustainability.

Long-Term Reliability:
Ammonia systems are known for their durability and longevity, often outlasting synthetic refrigerant systems when properly maintained.

Safety Considerations

While ammonia is non-ozone depleting and energy-efficient, it is a toxic and mildly flammable substance. However, with proper handling, system design, and safety protocols, ammonia refrigeration systems can operate safely for decades. Blended Products provides guidance on safe ammonia handling, system maintenance, and regulatory compliance to ensure operational safety.

Key Benefits:

• Energy Efficiency: Ammonia’s superior thermodynamic properties result in lower energy consumption compared to many synthetic refrigerants.
• Cost-Effectiveness: Due to its high efficiency, ammonia systems often require smaller pipe sizes and heat exchangers, leading to reduced installation and operational costs.
• Environmental Friendliness: Ammonia has zero ODP and GWP, making it a sustainable choice for refrigeration needs.