NASA is working on a new technology that will make charging electric vehicles much faster than before.
The National Aeronautics and Space Administration (NASA) is said to have developed a new technology that makes charging electric vehicles much faster than before. NASA claims this new and advanced technology can be useful for high power DC charging stations. A NASA team led by Purdue University Professor Issam Mudawar has developed a Flow Boiling and Condensation Experiment (FBCE) technology that enables two-phase fluid flow and heat transfer experiments in the microgravity environment on the International Space Station (ISS). NASA also said in its statement that it delivered this thermal control technology to the ISS in August 2021 and began providing data on microgravity flow boiling in early 2022.
(Also Read: Main Differences Between Hydrogen Fuel Cell and Electric Cars)
The space agency further explained that the flow boiler module of the FBCE comprises heat-generating devices mounted along the wall of a flow channel into which liquid-state coolant is supplied. As the devices heat up, the temperature of the liquid in the channel also rises, and eventually the liquid next to the walls begins to boil. This boiling liquid forms numerous small bubbles on the walls, which move away from the walls at high frequency and continuously draw liquid from the interior of the channel to the channel walls.
This process is said to transfer heat efficiently by taking advantage of the lower temperature of the liquid and the consequent phase change from liquid to vapor. “This process is greatly enhanced when the liquid fed to the channel is in a supercooled state well below the boiling point. This new subcooled flow boiling technique results in greatly improved heat transfer efficiency compared to other approaches,” NASA claims in a statement.
NASA claimed that Midawar’s team applied the same principles learned from FBCE to the electric vehicle charging process. To charge electric vehicles, a dielectric liquid coolant is pumped through the charging cable, which absorbs the heat generated by the current-carrying conductor. The system was able to dissipate up to 24.22 kW of heat through supercooled flow boiling. NASA claims this charging system can deliver current of up to 2,400 amps.
Interestingly, many technologies developed by NASA in the past have found their successful application on Earth, particularly in the automotive industry. The latest of these could be the new temperature control technology. This can allow the EVs to charge faster by enabling greater heat transfer capabilities, thereby ensuring higher charging power levels.
Initial Release Date: Oct 23, 2022 10:54 am IST