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A review on integration and design of desiccant air-conditioning systems for overall performance improvements

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  • Gao, D.C.
  • Sun, Y.J.
  • Ma, Z.
  • Ren, H.

Abstract

With independent temperature and humidity control, desiccant air-conditioning (DAC) systems have multi-aspect advantages (e.g., high-efficiency moisture control, no ozone-depleting coolants use and easy renewable integration etc.) compared with conventional vapor-compression cooling systems, thereby attracting increasingly more research attention. Recently, many studies have been conducted to improve DAC system overall performance by integrating various energy sub-systems/technologies, improving system configurations and optimizing system designs and controls. This study, therefore, provides a timely and systematic review on the abovementioned studies. The study first overviews three typical DAC system configurations, their operating processes, and the commonly used performance indicators. Second, the study summarizes the main integration approaches of DAC systems. Detailed comparative analysis has been provided regarding these integration approaches. Third, the study presents the DAC system configuration improvements in four main categories, and comparatively analyzes their performance enhancements. Last, the study briefly reviews the DAC system design and control optimizations. Meanwhile, based on the DAC system latest developments, the study provides discussions on pressing issues and recommendations for future works. The study can help improve the understanding of the latest developments on DAC system integration and design for overall performance improvements. Associated discussions and recommendations may help focus the needed efforts on solving the pressing issues and outstanding problems, thereby leading to DAC system further performance improvements.

Suggested Citation

  • Gao, D.C. & Sun, Y.J. & Ma, Z. & Ren, H., 2021. "A review on integration and design of desiccant air-conditioning systems for overall performance improvements," Renewable and Sustainable Energy Reviews, Elsevier, vol. 141(C).
    • Handle: RePEc:eee:rensus:v:141:y:2021:i:c:s1364032121001040
    DOI: 10.1016/j.rser.2021.110809
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    as
    1. Zhang, Li-Zhi & Zhang, Ning, 2014. "A heat pump driven and hollow fiber membrane-based liquid desiccant air dehumidification system: Modeling and experimental validation," Energy, Elsevier, vol. 65(C), pages 441-451.
    2. Guo, Yi & Al-Jubainawi, Ali & Peng, Xueyuan, 2019. "Modelling and the feasibility study of a hybrid electrodialysis and thermal regeneration method for LiCl liquid desiccant dehumidification," Applied Energy, Elsevier, vol. 239(C), pages 1014-1036.
    3. Hands, Stuart & Sethuvenkatraman, Subbu & Peristy, Mark & Rowe, Daniel & White, Stephen, 2016. "Performance analysis & energy benefits of a desiccant based solar assisted trigeneration system in a building," Renewable Energy, Elsevier, vol. 85(C), pages 865-879.
    4. Speerforck, Arne & Ling, Jiazhen & Aute, Vikrant & Radermacher, Reinhard & Schmitz, Gerhard, 2017. "Modeling and simulation of a desiccant assisted solar and geothermal air conditioning system," Energy, Elsevier, vol. 141(C), pages 2321-2336.
    5. Wang, Xinli & Cai, Wenjian & Yin, Xiaohong, 2017. "A global optimized operation strategy for energy savings in liquid desiccant air conditioning using self-adaptive differential evolutionary algorithm," Applied Energy, Elsevier, vol. 187(C), pages 410-423.
    6. Hua, L.J. & Jiang, Y. & Ge, T.S. & Wang, R.Z., 2018. "Experimental investigation on a novel heat pump system based on desiccant coated heat exchangers," Energy, Elsevier, vol. 142(C), pages 96-107.
    7. Su, Bosheng & Han, Wei & Qu, Wanjun & Liu, Changchun & Jin, Hongguang, 2018. "A new hybrid photovoltaic/thermal and liquid desiccant system for trigeneration application," Applied Energy, Elsevier, vol. 226(C), pages 808-818.
    8. Peci, F. & Comino, F. & Ruiz de Adana, M., 2018. "Performance of an unglazed transpire collector in the facade of a building for heating and cooling in combination with a desiccant evaporative cooler," Renewable Energy, Elsevier, vol. 122(C), pages 460-471.
    9. Baniyounes, Ali M. & Liu, Gang & Rasul, M.G. & Khan, M.M.K., 2013. "Comparison study of solar cooling technologies for an institutional building in subtropical Queensland, Australia," Renewable and Sustainable Energy Reviews, Elsevier, vol. 23(C), pages 421-430.
    10. Su, Bosheng & Han, Wei & Sui, Jun & Jin, Hongguang, 2017. "A two-stage liquid desiccant dehumidification system by the cascade utilization of low-temperature heat for industrial applications," Applied Energy, Elsevier, vol. 207(C), pages 643-653.
    11. Chen, Yi & Yang, Hongxing & Luo, Yimo, 2018. "Investigation on solar assisted liquid desiccant dehumidifier and evaporative cooling system for fresh air treatment," Energy, Elsevier, vol. 143(C), pages 114-127.
    12. Hua, L.J. & Ge, T.S. & Wang, R.Z., 2019. "Extremely high efficient heat pump with desiccant coated evaporator and condenser," Energy, Elsevier, vol. 170(C), pages 569-579.
    13. Chai, Shaowei & Sun, Xiangyu & Zhao, Yao & Dai, Yanjun, 2019. "Experimental investigation on a fresh air dehumidification system using heat pump with desiccant coated heat exchanger," Energy, Elsevier, vol. 171(C), pages 306-314.
    14. Zhang, Qinling & Liu, Xiaohua & Zhang, Tao & Xie, Ying, 2020. "Performance optimization of a heat pump driven liquid desiccant dehumidification system using exergy analysis," Energy, Elsevier, vol. 204(C).
    15. Sultan, Muhammad & El-Sharkawy, Ibrahim I. & Miyazaki, Takahiko & Saha, Bidyut Baran & Koyama, Shigeru, 2015. "An overview of solid desiccant dehumidification and air conditioning systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 46(C), pages 16-29.
    16. Jani, D.B. & Mishra, Manish & Sahoo, P.K., 2016. "Solid desiccant air conditioning – A state of the art review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 60(C), pages 1451-1469.
    17. Kim, Min-Hwi & Dong, Hae-Won & Park, Joon-Young & Jeong, Jae-Weon, 2016. "Primary energy savings in desiccant and evaporative cooling-assisted 100% outdoor air system combined with a fuel cell," Applied Energy, Elsevier, vol. 180(C), pages 446-456.
    18. Zhou, D. & Zhao, C.Y. & Tian, Y., 2012. "Review on thermal energy storage with phase change materials (PCMs) in building applications," Applied Energy, Elsevier, vol. 92(C), pages 593-605.
    19. Rafique, M. Mujahid & Gandhidasan, P. & Bahaidarah, Haitham M.S., 2016. "Liquid desiccant materials and dehumidifiers – A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 56(C), pages 179-195.
    20. Mardiana-Idayu, A. & Riffat, S.B., 2012. "Review on heat recovery technologies for building applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(2), pages 1241-1255.
    21. La, D. & Dai, Y.J. & Li, Y. & Wang, R.Z. & Ge, T.S., 2010. "Technical development of rotary desiccant dehumidification and air conditioning: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(1), pages 130-147, January.
    22. Guan, Bowen & Liu, Xiaohua & Zhang, Tao, 2020. "Analytical solutions for the optimal cooling and heating source temperatures in liquid desiccant air-conditioning system based on exergy analysis," Energy, Elsevier, vol. 203(C).
    23. Abdel-Salam, Ahmed H. & Simonson, Carey J., 2016. "State-of-the-art in liquid desiccant air conditioning equipment and systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 58(C), pages 1152-1183.
    24. Vivekh, P. & Kumja, M. & Bui, D.T. & Chua, K.J., 2018. "Recent developments in solid desiccant coated heat exchangers – A review," Applied Energy, Elsevier, vol. 229(C), pages 778-803.
    25. Chen, Liu & Tan, Yikun, 2020. "The performance of a desiccant wheel air conditioning system with high-temperature chilled water from natural cold source," Renewable Energy, Elsevier, vol. 146(C), pages 2142-2157.
    26. Cheon, Seong-Yong & Lim, Hansol & Jeong, Jae-Weon, 2019. "Applicability of thermoelectric heat pump in a dedicated outdoor air system," Energy, Elsevier, vol. 173(C), pages 244-262.
    27. Li, Xian & Kan, Xiang & Sun, Xiangyu & Zhao, Yao & Ge, Tianshu & Dai, Yanjun & Wang, Chi-Hwa, 2019. "Performance analysis of a biomass gasification-based CCHP system integrated with variable-effect LiBr-H2O absorption cooling and desiccant dehumidification," Energy, Elsevier, vol. 176(C), pages 961-979.
    28. Jradi, M. & Riffat, S., 2014. "Experimental investigation of a biomass-fuelled micro-scale tri-generation system with an organic Rankine cycle and liquid desiccant cooling unit," Energy, Elsevier, vol. 71(C), pages 80-93.
    29. Fong, K.F. & Lee, C.K., 2019. "Performance investigation of a SOFC-primed micro-combined hybrid cooling and power system in hot and humid regions," Energy, Elsevier, vol. 189(C).
    30. Tu, Rang & Liu, Xiao-Hua & Jiang, Yi, 2014. "Performance analysis of a two-stage desiccant cooling system," Applied Energy, Elsevier, vol. 113(C), pages 1562-1574.
    31. Chicco, Gianfranco & Mancarella, Pierluigi, 2007. "Trigeneration primary energy saving evaluation for energy planning and policy development," Energy Policy, Elsevier, vol. 35(12), pages 6132-6144, December.
    32. Wei, Maolin & Yuan, Weixing & Fu, Lin & Zhang, Shigang & Zhao, Xiling, 2018. "Summer performance analysis of coal-based CCHP with new configurations comparing with separate system," Energy, Elsevier, vol. 143(C), pages 104-113.
    33. Wang, H.H. & Ge, T.S. & Zhang, X.L. & Zhao, Y., 2016. "Experimental investigation on solar powered self-cooled cooling system based on solid desiccant coated heat exchanger," Energy, Elsevier, vol. 96(C), pages 176-186.
    34. Francesco Calise & Laura Vanoli, 2012. "Parabolic Trough Photovoltaic/Thermal Collectors: Design and Simulation Model," Energies, MDPI, vol. 5(10), pages 1-23, October.
    35. Wang, Yingying & Fan, Ying & Wang, Dengjia & Liu, Yanfeng & Qiu, Zhenghao & Liu, Jiaping, 2020. "Optimization of the areas of solar collectors and photovoltaic panels in liquid desiccant air-conditioning systems using solar energy in isolated low-latitude islands," Energy, Elsevier, vol. 198(C).
    36. Sun, Fangtian & Li, Junlong & Fu, Lin & Li, Yonghong & Wang, Ruixiang & Zhang, Shigang, 2020. "New configurations of district heating and cooling system based on absorption and compression chillers driven by waste heat of flue gas from coke ovens," Energy, Elsevier, vol. 193(C).
    37. Sheng, Ying & Zhang, Yufeng & Zhang, Ge, 2015. "Simulation and energy saving analysis of high temperature heat pump coupling to desiccant wheel air conditioning system," Energy, Elsevier, vol. 83(C), pages 583-596.
    38. Kim, Min-Hwi & Ham, Sang-Woo & Park, Jun-Seok & Jeong, Jae-Weon, 2014. "Impact of integrated hot water cooling and desiccant-assisted evaporative cooling systems on energy savings in a data center," Energy, Elsevier, vol. 78(C), pages 384-396.
    39. Fong, K.F. & Lee, C.K. & Lin, Z., 2019. "Investigation on effect of indoor air distribution strategy on solar air-conditioning systems," Renewable Energy, Elsevier, vol. 131(C), pages 413-421.
    40. Alelyani, Sami M. & Sherbeck, Jonathan A. & Fette, Nicholas W. & Wang, Yuqian & Phelan, Patrick E., 2018. "Assessment of a novel heat-driven cycle to produce shaft power and refrigeration," Applied Energy, Elsevier, vol. 215(C), pages 751-764.
    41. Safizadeh, M. Reza & Morgenstern, Alexander & Bongs, Constanze & Henning, Hans-Martin & Luther, Joachim, 2016. "Optimization of a heat assisted air-conditioning system comprising membrane and desiccant technologies for applications in tropical climates," Energy, Elsevier, vol. 101(C), pages 52-64.
    42. Dong, Hye-Won & Jeong, Jae-Weon, 2020. "Energy benefits of organic Rankine cycle in a liquid desiccant and evaporative cooling-assisted air conditioning system," Renewable Energy, Elsevier, vol. 147(P1), pages 2358-2373.
    43. Keniar, Khoudor & Ghali, Kamel & Ghaddar, Nesreen, 2015. "Study of solar regenerated membrane desiccant system to control humidity and decrease energy consumption in office spaces," Applied Energy, Elsevier, vol. 138(C), pages 121-132.
    44. Fong, K.F. & Lee, C.K., 2014. "Performance advancement of solar air-conditioning through integrated system design for building," Energy, Elsevier, vol. 73(C), pages 987-996.
    45. Speerforck, Arne & Schmitz, Gerhard, 2016. "Experimental investigation of a ground-coupled desiccant assisted air conditioning system," Applied Energy, Elsevier, vol. 181(C), pages 575-585.
    46. Giovanni Angrisani & Carlo Roselli & Maurizio Sasso & Francesco Tariello & Giuseppe Peter Vanoli, 2016. "Performance Assessment of a Solar-Assisted Desiccant-Based Air Handling Unit Considering Different Scenarios," Energies, MDPI, vol. 9(9), pages 1-24, September.
    47. Jiang, Yuliang & Wang, Xinli & Zhao, Hongxia & Wang, Lei & Yin, Xiaohong & Jia, Lei, 2020. "Dynamic modeling and economic model predictive control of a liquid desiccant air conditioning," Applied Energy, Elsevier, vol. 259(C).
    48. Aliane, A. & Abboudi, S. & Seladji, C. & Guendouz, B., 2016. "An illustrated review on solar absorption cooling experimental studies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 65(C), pages 443-458.
    49. Xu, F. & Bian, Z.F. & Ge, T.S. & Dai, Y.J. & Wang, C.H. & Kawi, S., 2019. "Analysis on solar energy powered cooling system based on desiccant coated heat exchanger using metal-organic framework," Energy, Elsevier, vol. 177(C), pages 211-221.
    50. Ge, T.S. & Dai, Y.J. & Wang, R.Z. & Li, Y., 2015. "Performance of two-stage rotary desiccant cooling system with different regeneration temperatures," Energy, Elsevier, vol. 80(C), pages 556-566.
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    Cited by:

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    4. Luo, Jielin & Yang, Hongxing, 2022. "A state-of-the-art review on the liquid properties regarding energy and environmental performance in liquid desiccant air-conditioning systems," Applied Energy, Elsevier, vol. 325(C).
    5. Luo, Jielin & Shen, Yongting & Yang, Hongxing, 2024. "Investigations on an integrated air-conditioning system using technologies of desiccant dehumidification, indirect evaporative cooling and CO2 capture," Applied Energy, Elsevier, vol. 369(C).
    6. Cai, Shanshan & Li, Xu & Yang, Ling & Hua, Zhipeng & Li, Song & Tu, Zhengkai, 2024. "Demand flexibility and its impact on a PEM fuel cell-based integrated energy supply system with humidity control," Renewable Energy, Elsevier, vol. 228(C).
    7. Zhang, Qunli & Li, Yanxin & Zhang, Qiuyue & Ma, Fengge & Lü, Xiaoshu, 2024. "Application of deep dehumidification technology in low-humidity industry: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 193(C).
    8. Su, Minqi & Han, Xiaoqu & Dai, Yanbing & Wang, Jinshi & Liu, Jiping & Yan, Junjie, 2024. "Investigation on recirculated regenerative solid desiccant-assisted dehumidification system: Impact of system configurations and desiccant materials," Energy, Elsevier, vol. 286(C).
    9. Cui, Yuanlong & Zhu, Jie & Zoras, Stamatis & Liu, Lin, 2021. "Review of the recent advances in dew point evaporative cooling technology: 3E (energy, economic and environmental) assessments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 148(C).
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