The Affection Of Parameters To A Rotary Dehumidifier And The Application Of Rotary Dehumidification In The Region Of Hunan

Rotary dehumidification air-conditioning system is one of those which are friendly to environment. The rotor moves away the vapor with the adsorption of the desiccant inside it, which releases the coupling of the system's sensible heat load and latent heat load. Because of the processing of the rotor, the process air is treated to such a status with low temperature and low dew-point and the evaporating temperature of the chilling equipment is enhanced. The rotor plays a very important part in the rotary dehumidification air-conditioning system, whose dehumidifying efficiency makes an great affect to the system performance.After the comparisons of the heat properties of several different solid desiccants, the Kiselgel A was selected as the desiccant of the system. A series of assumptions were made based on the heat and mass transfer theory inside the sinusoidal micro channel. The governing equations which describe the process of heat and mass transfer were derived observing the law of energy and mass conservation and discretized by the MacCormack explicit finite difference method. The computation program was compiled simulate air handling process.The affection of operating parameters and structure parameters to the dehumidification was studied. It shows that the outlet humidity is monotonic as a function of the parameters of the air status while there is an optimised value of rotation speed,the area ratio of regeneration to dehumidification and width of rotor to make the dehumidification amount the greatest.Meanwhile, the influence of the area ratio of regeneration to dehumidification to the MRC and inlet process air temperature and humidity to the DCOP is investigated.According to the weather condition of the Changsha city, the energy consumption of the rotary dehumidification air-conditioning system and the normal cooling dehumidification air-conditioning system was calculated. The result reveals that the energy the former expended is 3.6% less than the latter.But after some improvement of rotary dehumidification system, two better rotary dehumidification systems were studied. Comparing to the initial rotary dehumidification system under the same working condition,the energy they saved is about 8.1% and 23.2% respectively. After the exergy analysis, it is asured that the rotor has a higher rate of energy applying than the chiller does.