Which gas is commonly used in commercial refrigeration systems?

Ammonia (NH3) is commonly used in commercial refrigeration systems due to its excellent thermodynamic properties, high energy efficiency, and low cost. Ammonia has a very high latent heat of vaporization, which means it can absorb a significant amount of heat during the evaporation process, making it highly effective for cooling. Additionally, it is non-toxic when handled properly and can be recycled easily, further contributing to its appeal in commercial applications.

This gas is especially favored in large-scale industrial refrigeration systems, including food processing and cold storage facilities, where efficient heat exchange and reliability are paramount. Many systems are designed to handle ammonia safely, taking into account its potential hazards, thus making it a prevalent choice in settings that require robust and efficient refrigeration solutions.

Though other gases like Freon, carbon dioxide, and propane may also be used in certain applications, ammonia's specific characteristics make it a standout option in the commercial refrigeration sector.