【摘要】 针对自然水体蒸发和太阳能烟囱强化蒸发系统分别建立了理论模型和对比实验装置,考察了具体的强化效果。研究结果表明:由于集热棚和烟囱的存在,自然蒸发和强化蒸发系统的温度变化与分布不同,水温分别升高5℃以下和约15℃,多孔材料则产生相反的影响趋势;太阳能烟囱强化水分蒸发的效果是显著的,如果考虑到降雨的影响,加人多孔材料后系统的蒸发量仍最大;理论模型能较好地预测实验结果并可给出优化依据。更多还原

【Abstract】 Theoretical models and experimental equipment of natural evaporation systems and solar advanced systems were established respectively.The results show that the solar collector and chimney cause temperature difference and different distribution in the two kinds of systems.One has the temperature difference of 5℃,while the advanced system has the number of 15,and addition of porous materials makes for adverse tendency.The result of evaporation enhancement is ob- vious,the evaporation amount is still the largest when rainfall considered.The theoretical models can predict the data suitable for experimental results,and optimization can be made.更多还原