Imagine there was a container with an infinite amount of saturated refrigerant, and this refrigerant was both non-toxic and environmentally friendly. Connecting this container to a compressor inlet would allow pressure control inside the container to a desired setpoint. Since the refrigerant is saturated, adjusting the pressure also changes the refrigerant’s boiling temperature. This allows […]
The ‘compressor’ is the heartbeat of the vapor-compression refrigeration system. Without it, there is no pressure differential to drive the movement of refrigerant throughout the system, and therefore, no cooling can take place. The vapor exiting the evaporator is piped to the compressor which stands ready to receive the vapor and compress it. The compression […]
Opening a thermodynamics textbook, it is stated that the purpose of a refrigeration system is to maintain a cold region at a temperature below the temperature of its surroundings. This can be accomplished by employing a vapor compression refrigeration system. To understand how a vapor compression refrigeration system works, let’s start with a familiar substance…“water”. […]
When selecting a refrigerant, many factors influence the decision. It is important to remember that no refrigerant is perfect. One might have wonderful thermodynamic properties, but it is highly flammable. Another refrigerant may be safe for humans to handle, but it negatively impacts the environment. Selecting a refrigerant for a specific application involves careful consideration […]
ASHRAE Standard 34 is titled “Designation and Safety Classification of Refrigerants”. Among other things, this standard assigns each refrigerant a safety group classification based on the refrigerant’s flammability and toxicity. Refrigerants with low toxicity are given a rating of ‘Class A’, while refrigerants with higher toxicity are assigned ‘Class B’. According to Standard 34, refrigerants […]
Whether you are in need of a complete process safety management program or simply looking for a second opinion, Resource Compliance is here to help. Please contact us today. We look forward to hearing from you.
Join Our Email List