Dorsey knows how to transport air into the tunnel of the mine. Once air is compressed, it will release heat and need to be cooled with water. If the compressed air is reduced, there will be a cooling effect. Dorsey focused on this, installed a large engine in the hospital, treated the hot air with a compressor, and connected a heat absorption pipe in the ward. Dorsey succeeded, and the indoor temperature quickly dropped from 30℃ to about 25℃.
Modern refrigerators have developed by leaps and bounds after people invented freon refrigerants and polymer synthetic insulation materials. Modern refrigerators and air conditioners use fully enclosed electromechanical integrated refrigeration compressors, safe refrigerants and polymer insulation materials, which are safe and reliable to use.
Air conditioning is short for air conditioning. Air conditioning is an engineering technology. People use certain equipment and methods to adjust the air so that its temperature, flow rate and cleanliness (also called four-degree air conditioning) meet the requirements. In order to ensure that the parameters of indoor air reach a certain index and the temperature and humidity are suitable, air conditioning equipment (air conditioner) is used to adjust the air.