What are the risks of using ammonia as a refrigerant?

Ammonia refrigeration is very dangerous because when the chemical is mixed with air in the 16\%-25\% range it can cause a large explosion capable of leveling an entire building. The ammonia itself is also very toxic and is corrosive to the eyes, skin, and lungs.

Is ammonia gas used in refrigerator?

Ammonia is amongst the oldest of all the refrigerants and still used widely in the refrigeration applications. It is also the only refrigerant outside the halocarbons group, still being used to a great extent. Ammonia refrigerant is commonly known as R717 and its chemical formula is NH3.

Can ammonia be used as a coolant?

From an environmental angle, ammonia has formidable attributes. It doesn’t deplete Earth’s ozone layer or contribute to global warming as some fluorochemicals do. From a purely economic point of view, ammonia is an energy-saving coolant that is widely available and cheap.

Is ammonia the best refrigerant?

Ammonia is the most environmentally friendly refrigerant. It belongs to the group of so called “natural” refrigerants, and it has both GWP (Global Warming Potential) and ODP (Ozone Depletion Potential) equal to zero.

What is ammonia refrigerant used for?

Ammonia is a naturally occurring colorless gas that is a compound of nitrogen and hydrogen. When used in refrigeration systems, ammonia works to capture and transfer heat energy to keep it separate from the cooling process.

What is ammonia refrigeration?

What is Ammonia Refrigeration. Ammonia refrigeration systems are, as the name implies, a system of refrigeration that uses ammonia. The ammonia is the chemical that is used to absorb the heat from one area, and bring it to another area to dissipate.

What gas is used in a fridge?

HFC-134a
Fridges used to use a gas called Chloro-Flouro-Carbon or CFC, but the newer models tend to avoid these due to them being harmful to the atmosphere. Instead, your fridge probably uses another type of gas called HFC-134a, which becomes a liquid at -26.6 degrees Celsius.

How is ammonia used in a refrigerator?

Where is ammonia refrigeration used?

Ammonia refrigeration is most commonly used in facilities that have large-scale refrigeration systems such as food and beverage manufacturing facilities, cold storage warehouses, combined cycle power plants, and petrochemical facilities.

How does an ammonia refrigeration system work?

Ammonia Refrigeration Cycle. An ammonia refrigerator works in the same basic way that most other refrigeration systems operate. The ammonia refrigeration cycle works by bringing warm air into the refrigeration system, stripping the heat out of it, and then sending the cooled air back where it needs to be.

What are the types of refrigeration systems?

The main parts of a refrigeration system are shown diagrammatically in the figure below. The six primary components of the system include the thermostatic expansion valve, evaporator, capacity control system, compressor, condenser, and receiver. All refrigeration systems must also be fitted with a relief valve.

What is ammonia refrigerant?

Ammonia Gas used as a Refrigerant in Refrigeration System Ammonia Gas or Refrigerant R717. Ammonia is amongst the oldest of all the refrigerants and still used widely in the refrigeration applications. Properties and Advantages of Ammonia Refrigerant. Reference

What is ammonia chiller?

Ammonia Chiller Chemicals. Ammonia Chillers are commonly used in many food and beverage facilities to maintain very low process temperatures. The location of NH3 chillers is commonly located on the manufacturing rooftop which makes is difficult at apply or injecting your chemical treatment program.