Performance research on high temperature CO2 heat pump with supercritical enhanced gas injection

被引：0
|
作者：
Wu, Mengxia [1 ,2 ,3 ,4 ]
Wang, Hanzhi [2 ,3 ,4 ]
Li, Shuaiqi [2 ,3 ,4 ]
Song, Wenji [2 ,3 ,4 ]
Feng, Ziping [1 ,2 ,3 ,4 ]
机构：
[1] School of Engineering Science, University of Science and Technology of China, Hefei,Anhui,230026, China
[2] Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou,Guangdong,510640, China
[3] CAS Key Laboratory of Renewable Energy, Guangzhou,Guangdong,510640, China
[4] Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou,Guangdong,510640, China
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2020年 / 39卷 / 05期
关键词：
Carbon dioxide - Compressibility of gases - Cooling systems - Gas compressors - Heat pump systems - Pumps;
D O I：
10.16085/j.issn.1000-6613.2019-1404
中图分类号：
学科分类号：
摘要：
A novel high temperature CO2 heat pump cycle with supercritical enhanced gas injection was proposed to significantly improve heating performance under high temperature hydronic heating conditions. The numerical model of the high temperature CO2 heat pump system with supercritical gas injection was established, and the performance of the system was analyzed by EES (engineering equation solver) software. The influence of parameters such as evaporation temperature, middle pressure of compressor, gas cooler pressure, etc. on system performance at the high gas cooler outlet temperature was mainly studied. The results indicated that COP of 3.0 can be reached when the gas cooler outlet temperature was as high as 60℃. In comparison to common vapor injection system, the COP improved distinctly. As compared to conventional system without gas injection, the COP increased by 14.8%, 21.2%, 29.2% respectively with gas injection ratio of 0.3, 0.4, 0.5 at the gas cooler outlet temperature of 60℃. The influence of middle pressure and gas cooler pressure on COP have the same variation trend while the effect of gas cooler pressure is more significant. Besides, there exist an optimal gas cooler pressure and middle pressure. The optimal gas cooler pressure and middle pressure are 13.5MPa and 8.5MPa, respectively, when the gas cooler outlet temperature is 60℃ and the gas injection ratio is 0.4. © 2020, Chemical Industry Press. All right reserved.
引用
收藏
页码：1667 / 1673
相关论文
共 50 条
  • [41] Synthesis of germanium nanocrystals in high temperature supercritical CO2
    Lu, XM
    Korgel, BA
    Johnston, KP
    NANOTECHNOLOGY, 2005, 16 (07) : S389 - S394
  • [42] Comparing the performance of supercritical CO2 fracking with high energy gas fracking in unconventional shale
    Mandira Agarwal
    Vamsi Krishna Kudapa
    MRS Energy & Sustainability, 2022, 9 : 461 - 468
  • [43] Comparing the performance of supercritical CO2 fracking with high energy gas fracking in unconventional shale
    Agarwal, Mandira
    Kudapa, Vamsi Krishna
    MRS ENERGY & SUSTAINABILITY, 2022, 9 (02) : 461 - 468
  • [44] Effect of Injection Parameters on Thermodynamic Performance of an Enhanced Geothermal System (EGS) Using Supercritical CO2 Cycle
    Liu Q.
    Wan X.
    Duan Y.
    Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering, 2022, 42 (21): : 7884 - 7892
  • [45] Experimental Research on a New Mini-Channel Transcritical CO2 Heat Pump Gas Cooler
    Jiang, Jiawei
    Liang, Shiqiang
    Xu, Xiang
    Chen, Buze
    Shen, Zhixuan
    Guo, Chaohong
    Yu, Liqi
    Qin, Shuo
    MICROMACHINES, 2023, 14 (05)
  • [46] Co-Optimization of CO2 Storage and Enhanced Gas Recovery Using Carbonated Water and Supercritical CO2
    Omar, Abdirizak
    Addassi, Mouadh
    Vahrenkamp, Volker
    Hoteit, Hussein
    ENERGIES, 2021, 14 (22)
  • [47] PERFORMANCE ANALYSIS OF SUPERCRITICAL CO2 RECOMPRESSION POWER CYCLE WITH HEAT TRANSFER CHARACTERISTICS OF CO2
    Kim, Sunjin
    Cho, Yeonjoo
    Kim, Min Soo
    Kim, Minsung
    5TH IIR INTERNATIONAL CONFERENCE ON THERMOPHYSICAL PROPERTIES AND TRANSFER PROCESSES OF REFRIGERANTS (TPTPR), 2017, : 204 - 211
  • [48] PERFORMANCE ANALYSIS OF SUPERCRITICAL CO2 RECOMPRESSION POWER CYCLE WITH HEAT TRANSFER CHARACTERISTICS OF CO2
    Kim, Sunjin
    Cho, Yeonjoo
    Kim, Min Soo
    Kim, Minsung
    5TH IIR INTERNATIONAL CONFERENCE ON THERMOPHYSICAL PROPERTIES AND TRANSFER PROCESSES OF REFRIGERANTS (TPTPR), 2017, : 859 - 866
  • [49] Research of Heat Transfer Characteristics of Supercritical CO2 in Spiral Tube Heat Exchangers
    Cheng, Jian
    Wang, Wendong
    Yu, Jianyang
    Jiang, Huadong
    Gao, Jianmin
    Xu, Dan
    Energies, 2024, 17 (23)
  • [50] CO2 heat pump systems
    Nekså, P
    INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2002, 25 (04): : 421 - 427
12345