Abstract: A novel double-effect liquid desiccant dehumidifier with solar trough and flat plate dual collectors/regenerators for the liquid desiccant air conditioning system was presented, in which boiling regeneration was achieved through adopting the solar trough collector and the vapor-liquid separator and non-boiling regeneration was realized through adopting the flat plate collector and utilizing solar energy and heat recovery of steam condensation from the separator. Then a stable heat and mass transfer mathematical model was developed and numerical simulation was conducted by using calcium chloride as the desiccant. The results showed that the utilization factor of solar energy of the hybrid system could reach 68.8 percent and the regeneration effect was obviously improved in comparison with the common flat plate collectors/regenerators.

摘要： 提出了一种新型太阳能槽式与平板式联合集热溶液双效再生模式，采用槽式集热管与气液分离器实现沸腾式溶液再生，并回收利用其蒸汽冷凝热作为平板式集热再生装置的一部分热源供给，实现非沸腾式溶液再生。然后建立了其稳态传热传质过程的简化数学模型，对采用氯化钙溶液的再生过程进行了实例计算。结果表明：太阳能利用系数为68.8%，与普通平板式集热再生器相比，再生效果明显改善。