An innovative exhausted-heat-powered solid adsorption air conditioning system with zeolite-water as working pair is designed for providing air-conditioning for the driver's cab of a diesel locomotive. Only one adsorber is used in the system and a cold storage water tank is attached to provide cooling during generation process to ensure the continuous cooling output. Experiments on the laboratory prototype have been carried out and a mean cooling power output of about 3.3kW is obtained when the condensing temperature and the evaporating temperature are 40℃ and 7℃ respectively. The influences of some operating conditions on the system performance are analyzed by simulation and experiments. The results of the performance testing of the prototype installed in a diesel locomotive are also discussed as well. An average cooling power of 4.1kW is got under typical summer condition. It is proved that such a system is quite competitive even if a little bit heavier.

The adsorption performance of CaCl2-NH3 is studied under the condition of different expansion spaces for adsorbent, and the relationships between adsorption performance of CaCl2-NH3 and the phenomena of swelling and agglomeration during adsorption are researched. It is found that the performance stability is related to the ratio of expansion space to the volume of adsorbent ras, and the performance attenuation is serious in the case of large ras. Severe adsorption hysteresis exists in the process of adsorption and desorption at the same evaporating and condensing temperatures, which is related to the stability constant of chemical reaction. This phenomenon cannot be explained by the theory of physical adsorption. Moderate agglomeration will be beneficial to the formation of ammoniate complex; the magnitude of expansion space will affect adsorption performance. Analysis shows that the activated energy needed in the process of adsorption for the sample with ras of 2:1 is less than that for the sample with ras of 3:1. The refrigeration performance of CaCl2-NH3 is predicted from experiments. The cooling capacity of one adsorption cycle is about 945.4kJ/kg for the adsorbent with an ras of 2:1 at the evaporating temperature of 0℃.

对一种高压静电场与紫外线照射相结合的复合净化除病毒技术进行了实验研究，旨在寻长有效杀死空气中的病毒，特别是SARS病毒的方法，为空调系统空气净化处理提供配套技术。建立了中央空调室内环境模拟系统，利用超声雾化噬菌体储备液形成稳定的病毒气溶胶源，用明胶与素琼脂双层平板通过气流冲击法回收噬菌体，以检测净化装置除尘、杀病毒效果。结果表明，采用该技术在实际应用中对PM10的过滤系数在86%以上，在试验系统中的除病毒效率可达95%.通过本课题研究建立了试验平台，并获得了工程应用验证。

Adsorption cold storage has lately attracted attention for its large storage capacity and zero cold energy loss during the storing process. Thermodynamic and experimental studies on the cold storage capacity and the cold discharging process, in which the adsorber is either air cooled or adiabatic, have been presented. An adsorption cold storage system with zeolite-water working pair has been developed, and some operating results are summarized. This system is used for providing air conditioning for the driver s cab of an internal combustion locomotive. Unlike a normal adsorption air conditioner, the system starts running with the adsorption process, during which the cold energy stored is discharged, and ends running with the generation process. The adsorbent temperature decreases during the cold storing period between two runs. The refrigeration power output for the whole running cycle is about 4.1kW. It appears that such a system is quite energetically efficient and is comparatively suitable for providing discontinuous refrigeration capacity when powered by low grade thermal energy, such as industrial exhausted heat or solar energy.

A new composite adsorbent SiO2·xH2O·yCaCl2 which is composed of macro-porous silica gel and calcium chloride is introduced. In order to analyze its adsorption theory, adsorption and desorption isotherms, BET surface areas, pore volumes and average pore diameters of macro-porous silica gel and four composite adsorbent samples with different CaCl2 content are measured using SEM and Asap2010 apparatus. From the adsorption isotherms, desorption isotherms and lag loops, it can be deduced that the main pore structure in macro-porous silica gel and the new composite adsorbent have two shapes: taper with one top open and taper or hyperbolic taper with both ends open. Based on the analysis of pore diameter distribution and lag loop, a sketch map showing calcium chloride filled in pore of macro-porous silica gel is presented. The adsorption isotherms at 25℃ are measured. Experimental results show that the new composite adsorbent can adsorb more water than common adsorbents (macro-porous silica gel, micro-porous silica gel and synthetic zeolite 13X). In the light of the results of pore structure, adsorption isotherms and lyolysis phenomenon are analyzed.