The lubricant in refrigeration and air conditioning systems has many important functions. Even though the circulated refrigerant is the working fluid required for cooling, the lubricant or oil is ...

WASHINGTON — Ron Ace’s idea to cool the planet by evaporating water could provoke controversy because it collides head-on with a concern of environmental scientists: water vapor is a potent greenhouse ...

Often, systems without good oil separators, or none at all, will have oil build-up points throughout the piping. When manufacturer’s specifications are followed, refrigerant and oil mix with one ...

Water vapor is the most prevalent greenhouse gas. It causes about half of the warming of the planet. Like other greenhouse gases, it lets almost all of the sunlight reach the earth’s surface but ...

This summer, EPA issued two, long-awaited final technical guides for assessing and mitigating the intrusion of hazardous vapors from subsurface contamination into overlying buildings. EPA’s issuance ...