Bubbles (IMAGE) Brown University Caption In addition to speeding the plumes, the additive also creates bubbles of liquid and vapor that speed the removal of heat from the hot side of a heat exchanger. Credit Chao Sun Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.