What about heat pipe technology?

Heat pipe in engineering sense refers to the pipe with certain strength and pressure resistance. Because of the temperature difference between the medium inside the tube and the medium outside the tube, the heat exchange between the medium inside and outside the tube can be realized by using the heat conduction of the tube wall. The application of this heat conduction principle is called heat pipe technology. According to the need, the direction of heat exchange inside and outside the pipeline can be changed by changing the direction of temperature difference inside and outside the pipeline, which is the physical principle that heat pipe technology can be used for both heating heat exchange and refrigeration heat exchange. Therefore, according to the needs of the use environment, some heat pipes in the engineering sense are used for heating heat exchange equipment, and some are used for refrigeration heat exchange equipment, both of which are called the application of heat pipe technology in the engineering sense.