CAJ | 학술논문

太阳能混合盐溶液除湿技术,是工农业生产中空气除湿降温的关键技术难题,而系统的除湿/再生效率又是整个系统的核心问题.该文利用已建立的太阳能混合盐溶液(CaCl_2和LiCl)除湿/再生试验台,测量并分析了除湿器进、出口空气的含湿量与除湿效率的计算关系;研究了再生热源温度与再生量、扩散系数以及再生效率的关系.结果表明:随着太阳能集热器热源温度的升高,再生量、扩散系数、再生效率三者都会相应的升高.当再生热源的温度为104℃时,再生空气含湿量的增量可以达到10 g/kg,扩散系数最高可到0.277 cm~2/s,再生效率为55%;但是当热源温度低于50℃时,系统将无法再生,因此太阳能混合盐溶液除湿系统的有效再生热源温度不低于70℃.根据Chung提出的除湿效率计算模型,得到了太阳能混合盐溶液除湿系统叉流绝热型除湿器的除湿效率公式并得到了验证,经过计算叉流绝热型除湿器的除湿效率为56.8%.该研究为温室等设施除湿技术提供了研究基础.
태양능혼합염용액제습기술,시공농업생산중공기제습강온적관건기술난제,이계통적제습/재생효솔우시정개계통적핵심문제.해문이용이건립적태양능혼합염용액(CaCl_2화LiCl)제습/재생시험태,측량병분석료제습기진、출구공기적함습량여제습효솔적계산관계;연구료재생열원온도여재생량、확산계수이급재생효솔적관계.결과표명:수착태양능집열기열원온도적승고,재생량、확산계수、재생효솔삼자도회상응적승고.당재생열원적온도위104℃시,재생공기함습량적증량가이체도10 g/kg,확산계수최고가도0.277 cm~2/s,재생효솔위55%;단시당열원온도저우50℃시,계통장무법재생,인차태양능혼합염용액제습계통적유효재생열원온도불저우70℃.근거Chung제출적제습효솔계산모형,득도료태양능혼합염용액제습계통차류절열형제습기적제습효솔공식병득도료험증,경과계산차류절열형제습기적제습효솔위56.8%.해연구위온실등설시제습기술제공료연구기출.
The technology of liquid desiccant and solar regeneration is the key technical problems of evaporative cooling in high temperature and humidity region, and the most important thing is the dehumidification/regeneration efficiency. The calculating relationship between the humidity content of in/out air and dehumidification efficiency was established through the experimental measurement. And the relationships of temperature of regeneration heat source to regeneration quality, diffusion coefficient and regeneration efficiency were researched. The results showed that with the regeneration temperature increasing, the regeneration quality, diffusion coefficient and regeneration efficiency were rising. When the regeneration temperature was 104℃, the regeneration quality was 10 g/kg, diffusion coefficient 0.277 cm~2/s, and regeneration efficiency 55%. But when the regeneration temperature was lower 50℃, the regeneration cannot work. So the effective temperature regeneration was at least 70℃ in solar energy mixed solution dehumidification system. Based on the Chung model, the calculation formula of dehumidification efficiency in the multistage cross flow dehumidifier was established for the solar energy dehumidification system, and the dehumidification efficiency was 56.8%.This research for greenhouse facilities dehumidifying technology provides a study basic.