摘要
本文采用除湿转轮在典型冬季室外环境工况下对室内空气实现无水加湿,并采用含湿量增量和加湿性能系数作为指标评估整个无水加湿系统的加湿性能。对无水加湿系统建立数学模型,研究加湿系统中操作参数和结构参数对加湿性能的影响规律,并对操作参数和结构参数进行优选。当再生温度为90℃时,再生侧含湿量增量为9.75 g/(kg干空气)并且系统加湿性能系数达到最大值,表明该无水加湿系统完全可由太阳能或工业废热驱动。在优选参数条件下,系统的再生侧含湿量增量均可达到10 g/(kg干空气),并且系统加湿性能系数的变化范围为0.5~0.9,完全满足冬季室内环境加湿的需求。
A desiccant wheel is used to humidify the indoor air without water in the typical outdoor condition in winter. The increment of humidity ratio and humidification coefficient of performance are two indexes which are used to evaluate the humidification performance of the waterless humidification system. A mathematical model is established for the waterless humidification system, and the effect of operation parameters and structure parameters on humidification performance of the waterless humidification system is investigated and analyzed.Then the operation parameters and structure parameters are optimized. When the regeneration temperature is 90 ℃, the increment of humidity ratio on the regeneration side can be 9.75 g/(kg dry air) and the humidification coefficient of performance of waterless humidification system reaches to a maximum, which indicates that the waterless humidification system can be driven by solar energy or industrial waste heat. Under the condition of optimized parameters, the increment of humidity ratio on the regeneration side of the waterless humidification system can reach to 10 g/(kg dry air) and the humidification coefficient of performance of waterless humidification system varies from 0.5 to 0.9, which can meet the requirements of indoor humidification in winter.
作者
吴宣楠
葛天舒
WU Xuannan;GE Tianshu(Institute of Refrigeration and Cryogenics,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《制冷技术》
2021年第4期1-6,共6页
Chinese Journal of Refrigeration Technology
基金
国家自然科学基金(No.51576121)。
关键词
除湿转轮
无水加湿
含湿量增量
加湿性能系数
Desiccant wheel
Waterless humidification
Increment of humidity ratio
Humidification coefficient of performance
