Application of natural cooling technology to an industrial dehumidification project

Presents the application of natural cooling technology in coating drying production line of the project. When the humidity ratio of outdoor air is lower than 3 g/kg, the application of natural cooling technology can completely replace the dehumidifier by using the control system to realize the commixture of outdoor air and part return air and the heat exchange of outdoor air and exhaust air; when the humidity ratio of outdoor air is 3 to 12 g/kg, the application of natural cooling technology can partially replace the dehumidifier. Theoretical analysis and test results show that the implementation of the project can reduce energy cost by about 800 000 yuan per year.