A pocket card called “Pressure Temperature Chart” is available from the company. This foldable, pocket-size card contains a saturation chart that provides data on psig vs. temperature. Another chart ...

As useful as refrigerators and air conditioners are, the gases they use as refrigerants can leak into the atmosphere and become major contributors to climate change. Now engineers at Harvard have ...

The dire ramifications of under- and overcharging an air conditioner or heat pump were covered last month ("Using the Superheat Method to Charge A/C Systems," The News, Aug. 13, page 1). The first ...

The processes governing condensation in refrigerants are critical to modern thermal management and energy systems. Condensation heat transfer, which involves the phase change from vapour to liquid, ...