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Analysis and optimization of subcritical two-stage vapor injection heat pump systems

Author

Listed:
  • Redón, A.
  • Navarro-Peris, E.
  • Pitarch, M.
  • Gonzálvez-Macia, J.
  • Corberán, J.M.

Abstract

Two of the major problems of heat pump systems working in extreme conditions are the loss of efficiency of the system and the high compressor discharge temperatures. One possibility in order to overcome these issues is to perform the compression in two stages. In this frame the use of vapor injection two stage cycles represent an economic and effective solution. This study analyzes the influence of design parameters and injection conditions for two different configurations of two stage cycles, for four refrigerants (R407C, R290, R22 and R32). Design parameters, such as the displacement ratio, are optimized in terms of COP in ideal conditions for both injection systems. A deeper analysis taking into account the efficiencies of the compressor is done finding that two stage systems could reach improvements of 30% in terms of COP compared with one stage systems and that a bad design of this type of systems could represent a loss of improvement between 6% and 10%. Finally a method to control the system at any operating point in order to make it works in its optimum is done. From all the analysis, guidelines for the optimum design and control of such systems are obtained in terms of capacity, Coefficient of Performance (COP), seasonal performance factor and discharge temperature criteria.

Suggested Citation

  • Redón, A. & Navarro-Peris, E. & Pitarch, M. & Gonzálvez-Macia, J. & Corberán, J.M., 2014. "Analysis and optimization of subcritical two-stage vapor injection heat pump systems," Applied Energy, Elsevier, vol. 124(C), pages 231-240.
    • Handle: RePEc:eee:appene:v:124:y:2014:i:c:p:231-240
    DOI: 10.1016/j.apenergy.2014.02.066
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    References listed on IDEAS

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    1. Ma, Guo-yuan & Chai, Qin-hu, 2004. "Characteristics of an improved heat-pump cycle for cold regions," Applied Energy, Elsevier, vol. 77(3), pages 235-247, March.
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    Cited by:

    1. Kim, Dongwoo & Myeong, Seongryeol & Cha, Dowon & Kim, Yongchan, 2019. "Novel optimized operating strategies of two-phase injection heat pumps for achieving best performance with safe compression," Energy, Elsevier, vol. 187(C).
    2. Pitarch, Miquel & Navarro-Peris, Emilio & Gonzálvez-Maciá, José & Corberán, José M., 2017. "Evaluation of different heat pump systems for sanitary hot water production using natural refrigerants," Applied Energy, Elsevier, vol. 190(C), pages 911-919.
    3. Qin, Fei & Zhang, Guiying & Xue, Qingfeng & Zou, Huiming & Tian, Changqing, 2017. "Experimental investigation and theoretical analysis of heat pump systems with two different injection portholes compressors for electric vehicles," Applied Energy, Elsevier, vol. 185(P2), pages 2085-2093.
    4. Han, Xinxin & Zou, Huiming & Wu, Jiang & Tian, Changqing & Tang, Mingsheng & Huang, Guangyan, 2020. "Investigation on the heating performance of the heat pump with waste heat recovery for the electric bus," Renewable Energy, Elsevier, vol. 152(C), pages 835-848.
    5. Wang, Wenyi & Li, Yaoyu, 2019. "Intermediate pressure optimization for two-stage air-source heat pump with flash tank cycle vapor injection via extremum seeking," Applied Energy, Elsevier, vol. 238(C), pages 612-626.
    6. Kim, Dongwoo & Song, Kang Sub & Lim, Junyub & Kim, Yongchan, 2018. "Analysis of two-phase injection heat pump using artificial neural network considering APF and LCCP under various weather conditions," Energy, Elsevier, vol. 155(C), pages 117-127.
    7. Zhou, Chaohui & Ni, Long & Li, Jun & Lin, Zeri & Wang, Jun & Fu, Xuhui & Yao, Yang, 2019. "Air-source heat pump heating system with a new temperature and hydraulic-balance control strategy: A field experiment in a teaching building," Renewable Energy, Elsevier, vol. 141(C), pages 148-161.
    8. Wenhe Zhou & Bin Wang & Meng Wang & Yuying Chen, 2022. "Performance Analysis of the Coupled Heating System of the Air-Source Heat Pump, the Energy Accumulator and the Water-Source Heat Pump," Energies, MDPI, vol. 15(19), pages 1-11, October.
    9. Poulet, P. & Outbib, R., 2015. "Energy production for dwellings by using hybrid systems based on heat pump variable input power," Applied Energy, Elsevier, vol. 147(C), pages 413-429.
    10. Hwang, Jun Kwon & Yun, Geun Young & Lee, Sukho & Seo, Hyeongjoon & Santamouris, Mat, 2020. "Using deep learning approaches with variable selection process to predict the energy performance of a heating and cooling system," Renewable Energy, Elsevier, vol. 149(C), pages 1227-1245.
    11. Yijiang Zeng & Shengyu Li & Jun Lu & Xiaodong Li & Dingding Xing & Jipan Xiao & Zhanhao Zhang & Leihong Li & Xuhui Shi, 2023. "Research on Energy Savings of an Air-Source Heat Pump Hot Water System in a College Student’s Dormitory Building," Sustainability, MDPI, vol. 15(13), pages 1-24, June.
    12. Bianchi, Giuseppe & Cipollone, Roberto, 2015. "Theoretical modeling and experimental investigations for the improvement of the mechanical efficiency in sliding vane rotary compressors," Applied Energy, Elsevier, vol. 142(C), pages 95-107.
    13. Zhang, Long & Jiang, Yiqiang & Dong, Jiankai & Yao, Yang, 2018. "Advances in vapor compression air source heat pump system in cold regions: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P1), pages 353-365.
    14. Cheng, Jia-Hao & Cao, Xiang & Shao, Liang-Liang & Zhang, Chun-Lu, 2023. "Performance evaluation of a novel heat pump system for drying with EVI-compressor driven precooling and reheating," Energy, Elsevier, vol. 278(PB).
    15. Jeon, Yongseok & Kim, Sunjae & Lee, Sang Hun & Chung, Hyun Joon & Kim, Yongchan, 2020. "Seasonal energy performance characteristics of novel ejector-expansion air conditioners with low-GWP refrigerants," Applied Energy, Elsevier, vol. 278(C).
    16. Yao, Jian & Zheng, Sihang & Chen, Daochuan & Dai, Yanjun & Huang, Mingjun, 2021. "Performance improvement of vapor-injection heat pump system by employing PVT collector/evaporator for residential heating in cold climate region," Energy, Elsevier, vol. 219(C).
    17. Yulong Song & Haidan Wang & Feng Cao, 2020. "Investigation of the Impact Factors on the Optimal Intermediate Temperature in a Dual Transcritical CO 2 System with a Dedicated Transcritical CO 2 Subcooler," Energies, MDPI, vol. 13(2), pages 1-23, January.
    18. Gaigalis, Vygandas & Skema, Romualdas & Marcinauskas, Kazys & Korsakiene, Irena, 2016. "A review on Heat Pumps implementation in Lithuania in compliance with the National Energy Strategy and EU policy," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 841-858.
    19. Poppi, Stefano & Bales, Chris & Heinz, Andreas & Hengel, Franz & Chèze, David & Mojic, Igor & Cialani, Catia, 2016. "Analysis of system improvements in solar thermal and air source heat pump combisystems," Applied Energy, Elsevier, vol. 173(C), pages 606-623.
    20. Zou, Huiming & Li, Xuan & Tang, Mingsheng & Wu, Jiang & Tian, Changqing & Butrymowicz, Dariusz & Ma, Yongde & Wang, Jin, 2020. "Temperature stage matching and experimental investigation of high-temperature cascade heat pump with vapor injection," Energy, Elsevier, vol. 212(C).
    21. Kim, Dongwoo & Chung, Hyun Joon & Jeon, Yongseok & Jang, Dong Soo & Kim, Yongchan, 2017. "Optimization of the injection-port geometries of a vapor injection scroll compressor based on SCOP under various climatic conditions," Energy, Elsevier, vol. 135(C), pages 442-454.
    22. Konrad, Mary Elizabeth & MacDonald, Brendan D., 2023. "Cold climate air source heat pumps: Industry progress and thermodynamic analysis of market-available residential units," Renewable and Sustainable Energy Reviews, Elsevier, vol. 188(C).
    23. Wang, Jijin & Qv, Dehu & Yao, Yang & Ni, Long, 2021. "The difference between vapor injection cycle with flash tank and intermediate heat exchanger for air source heat pump: An experimental and theoretical study," Energy, Elsevier, vol. 221(C).

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