Microchannel Water Heater (IMAGE) DOE/Pacific Northwest National Laboratory Caption PNNL has developed a variety of microchannel devices for compact chemical and thermal systems. The rapid heat and mass transport provided by microchannel devices results in their small size and high efficiency. As part of RAPID, these systems can be designed for affordable commercial production so chemical companies can use them in their manufacturing operations. Credit PNNL 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.