关键词: 沸石分子筛/水, 工程机械, 空调, 冷管, 吸附式制冷

Abstract: An adsorption cooling tube knockdown air condi- tioning system powered by waste heat of engineering trucks is designed and manufactured. The relevant theoretical models and performance analysis indexes are presented. Then running performance experiments and relevant analysis for the air conditioning system are carried out. Under the conditions of a certain outside environment and 30 min of half cycle time, the maximum refrigerating temperature fall extent of cooled air is 13.0 ℃, the maximum cooling power is 1.10 kW, the mean cooling power of the system is 842 W, the coefficient of per- formance e c is 0.168, the specific cooling power Ps is 88.2 W/kg, when air is used as the cooling medium for the adsorber of air conditioner. The maximum refrigerating temperature fall extent of cooled air is increased to 14.0 ℃, the maximum cooling power, the mean cooling power of the system, e c and Ps are up to 1.21 kW, 926 W, 0.177 and 97.0 W/kg, respectively, when an improved cooling way for the adsorber of air conditioner is used. The conclusions can be drawn that the increased extent of e c is about 5.4%, and the increased extent of the maximum cooling power, the mean cooling power or Ps is near 10% respectively.

Key words: Adsorption refrigeration, Air-conditioner, Cooling tube, Engineering trucks, Zeolite/water