This is an update to a blog that was originally posted on 5/25/15. You can read the original blog here. New Ammonia Refrigeration Systems For new ammonia refrigeration systems, all vessels and equipment (compressors, condensers, etc.) must follow the component marker requirements in ANSI/IIAR 2-2021 §4.2. The standard states the following in regard to component […]
Ammonia Sails in this week’s edition of the Ammonia Week in Review… ClassNK Publishes Ammonia Leak Estimates – Japanese classification society ClassNK has published estimated leak frequencies of ammonia fuel from onboard components for ammonia-fuelled ships, to be used for risk assessment. […keep reading] Q&A | Safe Access to Equipment – Question: Do I have to provide safe access […]
Machinery room ventilation systems have long been required by model codes and standards. Dating back to at least the 1967 Uniform Mechanical Code[1], refrigeration machinery rooms have been required to be configured with adequate ventilation in the event of a refrigerant release. While we have written previously about the current ventilation design, control, and testing […]
Ammonia pipe supports are a crucial component to the construction of a refrigeration system. Inadequate pipe supports could lead to an ammonia release in the event of an earthquake, prolonged vibration, or physical impact. Many of IIAR’s standards and guidance documents provide helpful clarification regarding how ammonia piping should be supported and secured. Design of […]
Question: Does my machinery room need an emergency ventilation system if it only has three walls? Answer: It may not require mechanical ventilation and could meet the requirements for “Natural Ventilation”. ANSI/IIAR 2-2021 §7.3.2 states that for outdoor systems, natural ventilation can be utilized instead of mechanical ventilation. For a machinery room to qualify for […]
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