A novel desalination system operated at low temperature and atmospheric pressure was constructed based on the mechanism of the humidification-dehumidification (HDH) process. The configuration and working principle of the system were described. The thermodynamic theories of the HDH process were analyzed based on assumptions. The effect of the operating parameters on the performance of the desalination system was analyzed, including the air circulation flow rate, the feed flow rate and the solution temperature. The experimental results indicated that the water yield of the system increased with the solution temperature and the feed flow rate. The water yield was observed to increase first and then decrease by increasing air circulation rate contrary to expectation. At the feed flow rate of 60 L/h, the feed temperature of 57 °C, and the air circulation rate of 180 m3/h, the maximum yield and salt rejection ratio of the system can reach 1.7 kg/h and more than 99.99%, respectively. When the feed temperature is 38 °C, the maximum gained output ratio and specific thermal energy consumption of the system can reach about 3.8 and 166 kW·h/m3, respectively. It’s a competitive technology for the seawater desalination field due to the advantages of compact structure, modular design, easy operability, low maintenance cost, and great compatibility with renewable energy. Results show that the proposed system has great promise for decentralized small-scale water production applications, although it still has much room to be improved.
Shuo CONG,Jia-ming CHEN,Jing-cheng CAI,Rui-song SUN,Jian-hua DONG,Fei GUO. Thermodynamic analysis and experimental study on humidification-dehumidification desalination system. Journal of ZheJiang University (Engineering Science), 2019, 53(4): 684-691.
Fig.1Structure schematic diagram of humidification-dehumidification desalination system
Fig.2Small scale humidification-dehumidification desalination experimental system
Fig.3Change of Jf,p, GOR and STEC with qV,v
Fig.4Change of Jf,p, GOR and STEC with qV,f
Fig.5Change of system performances with tf,1
[1]
郑智颖, 李凤臣, 李倩, 等 海水淡化技术应用研究及发展现状[J]. 科学通报, 2016, 61 (21): 2344- 2370 ZHENG Zhi-ying, LI Feng-chen, LI Qian, et al State-of-the-art of R&D on seawater desalination technology (in Chinese)[J]. Chinese Science Bulletin, 2016, 61 (21): 2344- 2370
[2]
冯厚军, 谢春刚 中国海水淡化技术研究现状与展望[J]. 化学工业与工程, 2010, 27 (2): 103- 109 FENG Hou-jun, XIE Chun-gang Status and prospect of Chinese seawater desalination technology[J]. Chemical Industry and Engineering, 2010, 27 (2): 103- 109
doi: 10.3969/j.issn.1004-9533.2010.02.003
[3]
高从堦. 海水淡化及海水与苦咸水利用发展建议[M]. 北京: 高等教育出版社, 2007.
[4]
GREENLEE L F, LAWLER D F, FREEMAN B D, et al Reverse osmosis desalination: water sources, technology, and today's challenges[J]. Water Research, 2009, 43 (9): 2317- 2348
doi: 10.1016/j.watres.2009.03.010
[5]
ZHU A, CHRISTOFIDES P D, COHEN Y Energy consumption optimization of reverse osmosis membrane water desalination subject to feed salinity fluctuation[J]. Industrial and Engineering Chemistry Research, 2009, 48 (21): 9581- 9589
doi: 10.1021/ie900729x
[6]
SPIEGLER K S, LAIRD A D K. Principles of desalination [M]. New York: Academic Press, 1980.
[7]
上海交通大学. 喷雾蒸发空气加湿除湿式太阳能海水淡化装置: 20101009740 X [P]. 2010-10-15.
[8]
AL-ENEZI G, ETTOUNEY H, FAWZY N Low temperature humidification dehumidification desalination process[J]. Energy Conversion and Management, 2006, 47 (4): 470- 484
doi: 10.1016/j.enconman.2005.04.010
[9]
NARAYAN G P, LIENHARD J H Humidification dehumidification desalination[J]. Desalination and Water Treatment, 2010, 16 (1-3): 339- 353
doi: 10.5004/dwt.2010.1078
[10]
陶钧, 宫建国, 曾胜, 等 增湿去湿海水淡化技术的研究进展[J]. 化工进展, 2012, 31 (7): 1419- 1424 TAO Jun, GONG Jian-guo, ZENG Sheng, et al Research progress of humidification-dehumidification process[J]. Chemical Industry and Engineering Process, 2012, 31 (7): 1419- 1424
NARAYAN G P, SHARQAWY M H, SUMMERS E K, et al The potential of solar-driven humidification dehumidification desalination for small-scale decentralized water production[J]. Renewable and Sustainable Energy Reviews, 2010, 14 (4): 1187- 1201
doi: 10.1016/j.rser.2009.11.014
[13]
PAREKH S, FARID M M, SELMAN J R, et al Solar desalination with a humidification-dehumidification technique: a comprehensive technical review[J]. Desalination, 2004, 160 (2): 167- 186
doi: 10.1016/S0011-9164(04)90007-0
[14]
ESLAMIMANESH A, HATAMIPOUR M S Economical study of a small-scale direct contact humidification-dehumidification desalination plant[J]. Desalination, 2010, 250 (1): 203- 207
doi: 10.1016/j.desal.2008.11.015
[15]
MISTRY K H, MITSOS A, JOHN H L V Optimal operating conditions and configurations for humidification dehumidification desalination cycles[J]. International Journal of Thermal Sciences, 2011, 50 (5): 779- 789
doi: 10.1016/j.ijthermalsci.2010.12.013
[16]
ZHANI K, BACHA H B Experimental investigation of a new solar desalination prototype using the humidification dehumidification principle[J]. Renewable Energy, 2010, 35 (11): 2610- 2617
doi: 10.1016/j.renene.2010.03.033
[17]
NAWAYSEH N K, FARID M M, AL-HALLAJ S, et al Solar desalination based on humidification process—I. evaluating the heat and mass transfer coefficients[J]. Energy Conversion and Management, 1999, 40 (13): 1423- 1439
doi: 10.1016/S0196-8904(99)00018-7
[18]
FARSAD S, BEHZADMEHR A Analysis of a solar desalination unit with humidification-dehumidification cycle using DoE method[J]. Desalination, 2011, 278 (1): 70- 76
[19]
DAI Y J, ZHANG H F Experimental investigation of a solar desalination unit with humidification and dehumidification[J]. Desalination, 2000, 130 (2): 169- 175
doi: 10.1016/S0011-9164(00)00084-9
[20]
原郭丰, 赵子竞, JOHANSON J B, et al 雾化加湿除湿海水淡化中蒸发过程实验研究[J]. 太阳能学报, 2016, 37 (12): 3214- 3218 YUAN Guo-feng, ZHAO Zi-jing, JOHANSON J B, et al Experiment research of evaporation process in spray atomization humidification-dehumidification desalination[J]. Acta Energiae Solaris Sinica, 2016, 37 (12): 3214- 3218
[21]
常泽辉, 郑宏飞, 侯静, 等 两级多效太阳能增湿除湿苦咸水淡化装置的性能研究[J]. 北京理工大学学报, 2015, 35 (1): 27- 33 CHANG Ze-hui, ZHENG Hong-fei, HOU Jing, et al Performance of a two-stage multi-effect solar desalination system based on humidification-dehumidification process[J]. Transactions of Beijing Institute of Technology, 2015, 35 (1): 27- 33
[22]
刘忠, 曾胜, 程涛涛, 等 多效鼓泡蒸发太阳能海水淡化系统的稳态实验研究[J]. 太阳能学报, 2012, 33 (3): 380- 385 LIU Zhong, ZENG Sheng, CHENG Tao-tao, et al Steady experimental study on a solar distillation plant characterized with multi-effect bubbling evaporator[J]. Acta Energiae Solaris Sinica, 2012, 33 (3): 380- 385
doi: 10.3969/j.issn.0254-0096.2012.03.007
[23]
李正良, 郑宏飞, 陈子乾, 等 降膜蒸发多效回热吸收式太阳能海水淡化系统的实验研究[J]. 太阳能学报, 2007, 28 (11): 1188- 1193 LI Zheng-liang, ZHENG Hong-fei, CHEN Zi-qian, et al Experimental study on an absorption type solar desalination system with falling film evaporation and multi-effects regeneration[J]. Acta Energiae Solaris Sinica, 2007, 28 (11): 1188- 1193
doi: 10.3321/j.issn:0254-0096.2007.11.003
[24]
EL-DESSOUKY H T, ETTOUNEY H M. Fundamentals of salt water desalination [M]. Netherlands: Elsevier, 2002: 23–41.
[25]
XIAO G, WANG X, NI M, et al A review on solar stills for brine desalination[J]. Applied Energy, 2013, 103 (1): 642- 652
