Study on the influence characteristics of thermal effect of internally cooled dehumidifier

In order to investigate the dehumidification strengthening effect of multichannel flat tube thermal effect and analyze its strengthening mechanism, a corrugated fins-multichannel flat tube based internally cooled dehumidifier structure is designed. The optimum dehumidifier flow type was determined and the dehumidification strengthening characteristics and thermal mechanism of the multichannel flat tube under different air and cold source conditions were experimentally analyzed. The results showed that the flow type B2 (air-solution countercurrent and water-solution countercurrent) had the best dehumidification performance. High-temperature and high-humidity environments can worsen the dehumidification strengthening effect of the multichannel flat tube and the effective utilization of cooling power, although high humidity has a stronger inhibitory effect, its inhibition mechanism is different. When the inlet air humidity is 25.8 g/kg, the dehumidification performance increases by up to 16.6%; Decreasing the inlet water temperature and increasing the inlet water flow significantly improved the dehumidification strengthening effect of the multichannel flat tube. Furthermore, the multichannel flat tube can eliminate 100% of total heat when the inlet water temperature is below 20.7 degrees C.