刮削法冰浆制备系统的热力学分析与优化
Thermodynamic Analysis and Optimization of the Skiving Ice Slurry Preparation System

DOI: 10.12677/JSTA.2021.93018, PP. 141-152

Keywords: 刮削法，热力学分析，?效率，单因素，正交实验
Scraping Method, Thermodynamic Analysis, Exergy Efficiency, Single Factor, Orthogonal Experiment

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Abstract:

为了提高刮削法制冰系统的制冷系数和？效率，本文基于热力学定律对刮削法制冰系统进行热力学分析，研究了制冷剂种类、冷凝温度、环境温度以及蒸发温度等因素对刮削法制冰系统的影响。通过单因素实验设计计算系统的？损系数和？效率，可以通过降低冷凝温度、提高蒸发温度以及更换高效制冷剂NCUR01来提高系统的效率，来达到优化系统的目的。同时设计四因素三水平的正交实验进行极差分析，得到这四个因素对实验结果影响的主次顺序为：制冷剂种类、冷凝温度、蒸发温度、环境温度，制冷剂种类对目标值有最为显著的影响。在制冷剂工质为NCUR01，冷凝温度为10℃，环境温度为12℃，蒸发温度为？5℃时，系统的制冷系数ε = 4.97和？效率h = 47.1%达到最优值，制冷剂种类对目标值有最为显著的影响。通过本研究，可以得到各因素对系统影响的规律，选择合理的实验方案，为系统的优化设计提供指导。
In order to improve the coefficient of refrigeration and exergy efficiency of the scraping ice-making system, this paper conducts a thermodynamic analysis of the scraping ice-making system based on the law of thermodynamics, and studies the influences of type of refrigerant, condensation temperature, ambient temperature, and evaporating temperature on the ice scraping system. The exergy loss coefficient and exergy efficiency of the system are calculated through single-factor experimental design. The efficiency of the system can be improved by reducing the condensation temperature, increasing the evaporation temperature and replacing the high-efficiency refrigerant NCUR01 to achieve the purpose of optimizing the system. At the same time, a four-factor and three-level orthogonal experiment was designed for range analysis, and the order of the four factors’ influence on the experimental results was as follows: refrigerant type, condensation temperature, evaporating temperature, ambient temperature; and the type of refrigerant has the most significant effect on the target value. When the refrigerant is NCUR01, the condensation temperature is 10℃, the ambient temperature is 12℃, and the evaporation temperature is ？5℃, the system’s refrigeration coefficient ε = 4.97 and efficiency η = 47.1%, which reach the optimal value. The type of refrigerant has the most significant effect on the target value. Through this research, we can get the law of the influence of various factors on the system, choose a reasonable experimental plan, and provide guidance for the optimal design of the system.

References

[1]	Alok, K., Sateesh, K.Y., Ankit, M., et al. (2019) On-Demand Intermittent Ice Slurry Generation for Subzero Cold Ther-mal Energy Storage: Numerical Simulation and Performance Analysis. Applied Thermal Engineering, 161, Article ID: 114081. https://doi.org/10.1016/j.applthermaleng.2019.114081
[2]	Kauffeld, M. and Gund, S. (2019) Ice Slur-ry—History, Current Technologies and Future Developments. International Journal of Refrigeration, 99, 264-271. https://doi.org/10.1016/j.ijrefrig.2019.01.010
[3]	Guo, W.M., Zhang, Y.L. and Meng, Z.N. (2020) Non-Uniform Melting of a Spherical Ice Particle in Free Ascending. International Journal of Heat and Mass Transfer, 148, Article ID: 119097. https://doi.org/10.1016/j.ijheatmasstransfer.2019.119097
[4]	Gao, Y.G., Xi, Y.Y., Yang, Z.Z., Sasmito, A.P., Mujumdar, A.S. and Wang, L.J. (2021) Experimental Investigation of Specific HEAT of Aqueous Graphene Oxide Al2O3 Hybrid Nanofluid. Thermal Science, 25, 515-525. https://doi.org/10.2298/TSCI190404381G
[5]	Brooks, S., Quarini, G., Tierney, M., Yun, X. and Lucas, E. (2020) Conditions for Continuous Ice Slurry Generation in a Nylon Helical Coiled Heat Exchanger. Thermal Science and Engi-neering Progress, 15, Article ID: 100427. https://doi.org/10.1016/j.tsep.2019.100427
[6]	王泽普. 刮削式流化冰制冰设备的优化设计[D]: [硕士学位论文]. 天津: 天津大学, 2017.
[7]	黄成, 吴昊凡, 黄河源, 等. 螺旋刮削式流态冰制取性能的实验研究[J]. 化工进展, 2017, 36(1): 59-65.
[8]	王磊. 基于Simulink的刮片式流化冰制冰系统的动态仿真及性能优化[D]: [硕士学位论文]. 天津: 天津大学, 2017.
[9]	饶志明. 刮片式冰浆制取系统的分析与实验研究[D]: [硕士学位论文]. 天津: 天津商业大学, 2013.
[10]	Tatsunori, A. and Yusuke, E. (2020) Experimental Study on Absorption Ice Slurry Genera-tor with Ethanol Solution as the Refrigerant. International Journal of Heat and Mass Transfer, 162, Article ID: 120333. https://doi.org/10.1016/j.ijheatmasstransfer.2020.120333
[11]	Zhang, X.H., Dou, K., Zhang, G.W., Li, X.G., Cheng, W.S. and Zhu, H. (2021) Preparation of CO2/N2 Cryogenic Slurry and Its Pipeline Flow Characteristics. E3S Web of Conferences, 233, Article ID: 01068. https://doi.org/10.1051/e3sconf/202123301068
[12]	Hazarika, M.M., Ramgopal, M., Bhattacharyya, S. and Do-ménech, R.L. (2021) Role of Receiver on the Performance of a Transcritical CO2 Based Air-Conditioning Unit with Sin-gle-Stage and Two-Stage Expansion. Science and Technology for the Built Environment, 27, 1-28. https://doi.org/10.1080/23744731.2021.1902189
[13]	Faizan, A. (2021) Experimental Investigation of Al2O3-Water Nanofluid as a Secondary Fluid in a Refrigeration System. Case Studies in Thermal Engineering, 26, Article ID: 101024. https://doi.org/10.1016/j.csite.2021.101024
[14]	Gao, Y.G., Wang, H.C., Sasmito, A.P. and Mujumdar, A.S. (2018) Measurement and Modeling of Thermal Conductivity of Graphene Nanoplatelet Water and Ethylene Glycol Base Nanofluids. International Journal of Heat and Mass Transfer, 123, 97-109. https://doi.org/10.1016/j.ijheatmasstransfer.2018.02.089
[15]	Hu, J., Liu, C., Li, Q., et al. (2019) Thermal Energy Storage of R1234yf/MOF-5 and R1234ze(Z)/MOF-5 Nanofluids: A Molecular Simulation Study. Energy Procedia, 158, 4604-4610. https://doi.org/10.1016/j.egypro.2019.01.870
[16]	Kosei, T., Shou, S., Takahiko, M., Nobuo, T., Yukihiro, H. and Kyaw, T. (2021) Heat Pump Cycle Using Refrigerant Mixtures of HFC32 and HFO1234yf. Heat Transfer Engineering, 42, 1-14. https://doi.org/10.1080/01457632.2020.1776997
[17]	Longo, G.A., Mancin, S., Righetti, G., et al. (2019) R1234yf and R1234ze(E) as Environmentally Friendly Replacements of R134a: Assessing Flow Boiling on an Experimental Basis. International Journal of Refrigeration, 108, 336-346. https://doi.org/10.1016/j.ijrefrig.2019.09.008
[18]	Lee, D.C., Yun, S.H., Choi, J.Y. and Kim, Y.C. (2021) Flow Patterns and Heat Transfer Characteristics of R-1234ze(E) for Downward Condensation in a Plate Heat Exchanger. In-ternational Journal of Heat and Mass Transfer, 175, Article ID: 121373. https://doi.org/10.1016/j.ijheatmasstransfer.2021.121373
[19]	Colombo, L.P.M., Lucchini, A. and Molinaroli, L. (2020) Experimental Analysis of the Use of R1234yf and R1234ze(E) as Drop-In Alternatives of R134a in a Wa-ter-to-Water Heat Pump. International Journal of Refrigeration, 115, 18-27. https://doi.org/10.1016/j.ijrefrig.2020.03.004
[20]	Zhang, S.Z., Li, Y., Xu, Y.Y., Yang, J.H. and Wang, Q. (2021) A New Method for Estimating the Refrigerant Distribution in Plate Evaporator Based on Infrared Thermal Imaging. In-ternational Journal of Refrigeration, 126, 57-65. https://doi.org/10.1016/j.ijrefrig.2021.01.030

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