Engineering

US natural gas pipelines vulnerable to electric outages

Natural gas supplies 32% of all primary energy in the United States, its share of electricity generation having nearly doubled from 2008 to 2021. The cross-country natural gas pipeline system used to be powered mainly by ...

Energy & Green Tech

Keeping refrigerants flowing steadily in HVAC units

Oak Ridge National Laboratory researchers have demonstrated that microchannel heat exchangers in heating, ventilation and air conditioning units can keep refrigerants evenly and continually distributed through the insertion ...