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Document Type





Summer 2020


ammonia, smart relays, refrigerants, industrial hygiene, workplace safety


Ammonia presents high efficiency in freezing food products for preserving them for exportation; however, the use of this refrigerant implies a high risk to human life because it presents high concentrations of toxic gases that can produce deadly consequences to human beings. Smart relays present a flexible manner to automate industrial process; therefore, this poster aims to replace the manual and inefficient manner of controlling ammonia cooling system by using a smart relay that can control the levels of this refrigerant in the precooler and cooler section; resulting in considerable decrease workers’ in exposure to this refrigerant.


Controls and Control Theory | Industrial Engineering


Bureau of Education and Cultural Affairs (ECA) of the U.S. Department of State

Funding ID


Creative Commons License

Creative Commons Attribution-NonCommercial 4.0 International License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License

Additional Information

This work has been created with support from the Institute of International Education (IIE)/Fulbright - English for Graduate Students Program.

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