Filter by Topic - Page 4 of 4

Filter by Topic
Issue Date

2021 Tech Paper: Sustainable Use Cases for Ammonia as a Refrigerant in Residential/Light-Commercial HVAC

A significant amount of research and development has gone into the deployment of ammonia as a refrigerant in air conditioning and heat pump systems, going back to the first half of the twentieth century. This presentation provides an overview of the basic thermodynamic cycles currently in applica...

Filter by Topic

2022 Tech Paper: Oil Management Design Considerations for Industrial Transcritical CO2 Systems

Carbon dioxide as a refrigerant is becoming increasingly more popular on a global scale. The industrial refrigeration market is also finding applications for transcritical CO2 systems. Unlike ammonia systems, oil in CO2 systems is typically miscible and can create unique challenges in its managem...