What is the principle of dry ice cleaning carbon deposits?
2 Answers
Dry ice cleaning technology is a new cold spray technology that uses the high-pressure air from an air compressor to spray dry ice onto engine carbon deposits. The dry ice particles then accelerate and impact the carbon deposits, causing them to form cracks. The physical low temperature of the dry ice freezes and embrittles the carbon deposits, reducing their adhesion. As a result, dirt and oil on the surface of the object are quickly frozen and completely stripped away. The advantages of dry ice cleaning carbon deposits are as follows: 1. It does not cause any damage to the metal surface of the engine; 2. It does not affect the sealing of the engine; 3. It allows for quick and thorough cleaning of carbon deposits without disassembling the engine.
The principle of dry ice cleaning for carbon deposits is quite straightforward. It involves using dry ice pellets that are blasted at high pressure directly onto the carbon deposit layers on the engine surface. Since dry ice is extremely cold, around -78 degrees Celsius, it sublimates instantly upon contact with the hot surface, turning into carbon dioxide gas. During sublimation, the volume expands rapidly, generating powerful shockwaves and a thermal contraction effect, which cracks and breaks apart the carbon deposits. These are then blown away by an air stream. The entire process is purely physical, leaving no chemical residues, making it environmentally friendly. I've noticed many car owners opting for this method because it doesn't harm the engine internals, improves combustion efficiency, and reduces fuel consumption and emissions. Dry ice cleaning is particularly effective for cleaning hard-to-reach areas, such as stubborn carbon deposits near the throttle body or spark plugs, saving both time and effort.
