In a recent experiment, scientists created a small, light Wankel compressor for cooling systems used in aircraft and spacecraft. This compressor, about the size of a fist, was tested to see how well it worked with different speeds and temperatures. The results showed that using 220 grams of refrigerant gave the best cooling performance, with an energy efficiency of 2.8. When the compressor ran at higher speeds or with warmer cooling water, its cooling power remained stable but was slightly less efficient. Even after 600 hours of running, the tiny compressor used only 35 watts of power and maintained a high level of efficiency, scoring a 2.63 on a special scale. So, this miniature compressor seems to be a reliable and effective cooling solution for spaces where size and weight are crucial factors.