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Simulation and energy saving analysis of high temperature heat pump coupling to desiccant wheel air conditioning system

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  • Sheng, Ying
  • Zhang, Yufeng
  • Zhang, Ge

Abstract

The objective of this work is to investigate the energy saving potential of HTHP&DW (high temperature heat pump coupling to desiccant wheel) system by means of comparative analysis based on reference technologies. A complete numerical model of HTHP&DW system is established and the iterative algorithm is successfully applied and tested. The energy consumption, COP (coefficient of performance) and energy saving rate of HTHP&DW system are simulated under the different outdoor climates and indoor design conditions. The results show that energy saving rate of proposed system is 45.6% compared to CVC (conventional vapor compression) system and 30.5% compared to advanced HDC (hybrid desiccant cooling) system under the AHRI (Air-conditioning, Heating and Refrigeration Institute) design conditions. The impact of outside air humidity ratio is significant on the performance of HTHP&DW system. When the humidity is lower than 11 g/kg, the energy saving rate is up to 65% compared to CVC system. The lower indoor design temperature and higher indoor design humidity ratio are in favor of the energy saving of HTHP&DW system. Especially the energy consumption will decrease 20% when the indoor design humidity ratio increases 1.0 g/kg.

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  • 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.
    • Handle: RePEc:eee:energy:v:83:y:2015:i:c:p:583-596
    DOI: 10.1016/j.energy.2015.02.068
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    2. Park, Myeong Hyeon & Chung, Jun Yeob & Hong, Seong Ho & Shin, Hyun Ho & Lee, Dongchan & Kim, Yongchan, 2023. "Optimized geometric designs of desiccant wheels with metal-organic frameworks considering dehumidification capacity and energy," Energy, Elsevier, vol. 284(C).
    3. 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).
    4. Sánta, Róbert & Garbai, László & Fürstner, Igor, 2015. "Optimization of heat pump system," Energy, Elsevier, vol. 89(C), pages 45-54.
    5. Shamim, Jubair A. & Hsu, Wei-Lun & Paul, Soumyadeep & Yu, Lili & Daiguji, Hirofumi, 2021. "A review of solid desiccant dehumidifiers: Current status and near-term development goals in the context of net zero energy buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 137(C).
    6. Liu, Shuo & Jang, Hyusan & Yeo, Myoung-Souk, 2023. "Experimental study on the operating characteristic of the desiccant cooling systems with the potential of condensing heat recovery," Energy, Elsevier, vol. 283(C).
    7. Su, Xing & Geng, Yining & Huang, Lei & Li, Shangao & Wang, Qinbao & Xu, Zehan & Tian, Shaochen, 2024. "Review on dehumidification technology in low and extremely low humidity industrial environments," Energy, Elsevier, vol. 302(C).
    8. 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.
    9. 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.
    10. Xiangyang Dong & Shiqiang Chen & Zhenlin Lei & Zhulong Zhu & Yihan Chen, 2023. "Experimental Study on Fan Aerodynamic Noise Variation Characteristics under Non-Proportional Variation Law," Sustainability, MDPI, vol. 15(3), pages 1-13, January.
    11. Chung, Hyun Joon & Jeon, Yongseok & Kim, Dongwoo & Kim, Sunjae & Kim, Yongchan, 2017. "Performance characteristics of domestic hybrid dehumidifier combined with solid desiccant rotor and vapor compression system," Energy, Elsevier, vol. 141(C), pages 66-75.

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