Recent Blog Posts
Any refrigeration professional must understand the most common unit used in refrigeration, the “ton of refrigeration”. To properly explain what a “ton” is in a refrigeration context, studying refrigeration history is helpful. When the refrigeration vapor compression cycle was first invented, the most common application of a refrigeration system was making blocks of ice. Once […]
Ammonia Vanishes in this week’s edition of the Ammonia Week in Review… Firefighters Respond to Possible Ammonia Leak, No Injuries – L.A. County firefighters responded to a call about a possible ammonia leak at a building on Avenue Stanford in the Valencia Industrial Center Thursday evening, but were unable to determine whether there was a leak. […keep reading] […]
When a substance changes state from a liquid to a vapor, the process occurs at a constant temperature. When this occurs in a refrigeration system, it is said that the refrigerant is “saturated”. For water, experiments have proven that saturation, or boiling, occurs at 212ºF at 14.7 psia, which is atmospheric pressure. However, if someone were […]
“Saturation” is a term used to describe a substance that is at its boiling point. Water, for example, is said to be saturated when its temperature is 212ºF at sea level. The 212ºF water may be a liquid, a vapor, or a mixture of the two. When a substance is saturated, heat added or removed […]
To reinforce what is known about the states of matter, it can be helpful to study the heat energy profile of water. The graph below shows heat, measured in BTUs, applied to a pound of water on the horizontal axis and the temperature change of the water on the vertical axis. The values displayed are […]