Study on a desiccant air conditioning system driving by solar energy

提出了一种太阳能驱动的除湿空调系统，并对两种可在较低温度下再生的吸附剂--介孔二氧化硅TMPS 4A和有机吸附剂Exran的吸附性能进行了实验研究。对太阳能吸收剂的吸收能力进行了实验研究，并对太阳能吸收剂的节能潜力进行了循环模拟。在对两种吸附剂的吸附量和吸附速度进行实验测量的基础上，进行了循环模拟，考虑采用混合除湿和热泵空调来控制室内湿度，并在可利用的情况下引入太阳能作为替代能源发电。将太阳能辅助除湿热泵空调系统的循环模拟结果与传统的除湿空调系统进行了比较，结果表明，采用TMPS 4A和Exran时，太阳能辅助除湿空调系统的COP分别提高了25.1%和31.9%。

A desiccant air conditioning system driven by solar energy is proposed, and the absorption performance of two absorbents which can be regenerated at relatively lowtemperatures, i.e. mesoporous silica TMPS 4A and organic sorbent Exran, were experimentally studied. Both the experimental study on the absorption capacity andthe cycle simulation about the energy saving potential by using solar energy for the generation of absorbents were conducted. Based on the experimental measurements ofthe absorption capacity and velocity of the two sorbents, cycle simulation were conducted considering a hybrid desiccant and heat pump air conditioning to controlthe humidity of the room, the solar energy was introduced as alternative energy for generation when available. Cycle simulation results of the hybrid desiccant and heatpump system were compared to that of a conventional cooling dehumidification system, it is shown that the proposed solar heat assisted desiccant air conditioning systemhas 25.1% or 31.9% higher COP when the TMPS4A or Exran is used, respectively.