A Micro Channel Heat Exchanger (MCHE) is a type of heat exchanger that uses multiple small channels to transfer heat between two fluids. The channels are typically less than 1 mm in diameter and are arranged in a parallel or serpentine pattern.

MCHEs are commonly used in the automotive industry for engine cooling, as well as in air conditioning and refrigeration systems. They offer several advantages over traditional heat exchangers, including higher heat transfer efficiency, lower refrigerant charge, and reduced weight and size.