泡沫多孔材料对R134a水合物蓄冷的强化研究

doi:10.11949/0438-1157.20241056

摘要/Abstract

摘要：

为了强化R134a水合物制备系统的蓄冷性能，研究了三种泡沫多孔材料体系（碳化硅泡沫陶瓷、泡沫铝、泡沫铜）下不同的孔密度（PPI）和不同材料厚度对实验台蓄冷特性的影响，并使用Fluent对系统进行优化研究。实验表明充注压力为0.25MPa时，添加不同孔密度（10、20、30）的泡沫多孔材料均能对R134a水合物实验台的蓄冷性能起到促进作用，但随着孔密度的增大，三种材料体系的蓄冷特性都随之降低。当孔密度同为10PPI时，实验结果表明材料厚度为30mm时，水合物蓄冷特性达到最优。且材料为泡沫铜时，系统的预冷时间和蓄冷时间达到最低，分别为35.80min和42.61min；总蓄冷量为937.71kJ、蓄冷速率为0.364kW，水合物生成质量为0.992kg。数值模拟结果表明：当散流器入口流速为8m/s时，反应釜内的两相流性能最佳，更有利于R134a水合物围绕着多孔介质大量生成。

关键词: 蓄冷, 充注压力, 多孔介质, 气含率, 水合物

Abstract:

In order to enhance the cold storage performance of R134a hydrate preparation system, the effects of different pore density (PPI) and different material thickness on the cold storage performance of three kinds of porous foam materials (silicon carbide foam ceramic, aluminum foam, copper foam) were studied, and the optimization of the system was studied by Fluent. The results show that when the charging pressure is 0.25MPa, the addition of porous foam materials with different pore densities (10, 20, 30) can promote the cold storage performance of R134a hydrate test rig, but with the increase of pore density, the cold storage performance of the three materials systems decreases. When the pore density is 10PPI, the experimental results show that the material thickness is 30mm, the hydrate cold storage characteristics reach the optimum. When foam copper is used, the pre-cooling time and cool storage time of the system are the lowest, which are 35.80 min and 42.61 min respectively, the total cool storage capacity is 937.71 kJ, the cool storage rate is 0.364 kW, and the mass of hydrate formation is 0.992 kg. The numerical simulation results show that when the inlet velocity of diffuser is 8m/s, the two-phase flow performance in reactor is optimal, which is more conducive to the formation of R134a hydrate around porous media.

Key words: cold storage, charging pressure, porous media, gas holdup, hydrate

中图分类号:

TK 02

颜成辉, 谢应明, 庞治海, 翁盛乔. 泡沫多孔材料对R134a水合物蓄冷的强化研究[J]. 化工学报, DOI: 10.11949/0438-1157.20241056.

Chenghui YAN, Yingming XIE, Zhihai PANG, Shengqiao WENG. Study on strengthening of cold storage of R134a hydrate by foamed porous materials[J]. CIESC Journal, DOI: 10.11949/0438-1157.20241056.

图/表 11

图1 实验装置图

Fig.1 Experimental setup diagram

图2 泡沫材料放置示意图

Fig.2 Schematic diagram of foam placement

图3 水合物生成过程图

Fig.3 Diagram of hydrate formation process

图4 三种材料在不同PPI条件下蓄冷特性图

Fig.4 Cool storage characteristics graphs of three materials under different PPI conditions

表1 不同工况下蓄冷系统的蓄冷特性

Table 1 Characteristics of cold storage system under different working conditions

材料	孔密度（PPI）	反应中水蓄冷量（kJ）	釜体蓄冷量（kJ）	水合物蓄冷量（kJ）	总蓄冷量（kJ）
无	/	252.22	336.16	246.70	836.13
泡沫陶瓷	10	250.97	332.99	284.67	868.73
	20	250.22	333.66	279.11	860.11
	30	251.72	334.99	269.68	857.12
泡沫铝	10	250.84	334.66	278.61	865.34
	20	251.60	338.16	267.94	860.47
	30	250.47	335.49	263.0	851.33
泡沫铜	10	249.59	332.99	307.45	891.23
	20	250.34	334.99	291.18	878.33
	30	249.84	334.49	273.46	859.75

图5 三种材料不同PPI时水合物的生成质量

Fig.5 Mass of hydrate generated by three materials at different PPI

表2 不同厚度的泡沫多孔材料系统的蓄冷特性

Table 2 Cool storage characteristics of foam porous material systems with different thicknesses

材料	厚度 (mm)	蓄冷时间 (min)	预冷时间 (min)	平均蓄冷速率 (kW)	总蓄冷量 (kJ)
泡沫陶瓷	20	50.34	43.15	0.295	891.23
	30	47.63	40.17	0.324	926.34
	40	48.08	40.83	0.317	913.87
	20	49.83	42.83	0.295	881.26
泡沫铝	30	46.83	39.83	0.321	901.03
	40	47.96	40.42	0.312	891.23
	20	46.36	37.96	0.337	914.71
泡沫铜	30	42.61	35.80	0.364	937.71
	40	48.36	36.73	0.321	931.16

图6 三种材料不同厚度时水合物的生成质量

Fig.6 Quality of hydrate formation for three materials with different thicknesses

图7 网格模型示意图

Fig.7 Grid model diagram

图8 截面气含率径向分布对比验证

Fig.8 Comparison and verification of radial distribution of gas holdup in cross-section

图9 流速为8m/s时的气含率随时间变化云图

Fig.9 Cloud chart of gas holdup changing with time when the flow velocity is 8 m/s

参考文献 31

1	秦威南, 何强, 祝强, 等. 相变蓄冷材料研究进展[J]. 化工新型材料, 2021, 49(5): 1-6.
	Qin W N, He Q, Zhu Q, et al. Research progress on phase change cold storage material[J]. New Chemical Materials, 2021, 49(5): 1-6.
2	汪向磊, 王文梅, 曹和平, 等. 蓄冷技术现状及研究进展[J]. 山西化工, 2016, 36(1): 34-40.
	Wang X L, Wang W M, Cao H P, et al. Current status and recent advance of cold storage technology[J]. Shanxi Chemical Industry, 2016, 36(1): 34-40.
3	史杰, 郭恒超, 常晟, 等. 浦东机场能源中心水蓄冷系统设计与性能分析[J]. 流体机械, 2020, 48(9): 71-76.
	Shi J, Guo H C, Chang C, et al. Design and performance analysis of the water cold storage system in the energy center of Pudong international airport[J]. Fluid Machinery, 2020, 48(9): 71-76.
4	吴少光, 廖晓华, 蔡戈锋. 串并联结合水蓄冷系统应用研究[J]. 暖通空调, 2021, 51(6): 88-92, 39.
	Wu S G, Liao X H, Cai G F. Application of series and parallel combined water cool storage system[J]. Heating Ventilating & Air Conditioning, 2021, 51(6): 88-92, 39.
5	滕跃, 刘钊, 王文科, 等. 冰蓄冷空调技术在电网调峰中的应用[J]. 科技创新与应用, 2023, 13(12): 166-169.
	Teng Y, Liu Z, Wang W K, et al. Application of ice storage air conditioning technology in peak regulation of power grid[J]. Technology Innovation and Application, 2023, 13(12): 166-169.
6	Lin W M, Tu C S, Tsai M T, et al. Optimal energy reduction schedules for ice storage air-conditioning systems[J]. Energies, 2015, 8(9): 10504-10521.
7	丁军丹. 低温共晶盐蓄冷研究[D]. 南京: 南京理工大学, 2017.
	Ding J D. Study on cold storage of eutectic salt at low temperature[D]. Nanjing: Nanjing University of Science and Technology, 2017.
8	薛倩, 王晓霖, 李遵照, 等. 水合物利用技术应用进展[J]. 化工进展, 2021, 40(2): 722-735.
	Xue Q, Wang X L, Li Z Z, et al. Research progresses in hydrate based technologies and processes[J]. Chemical Industry and Engineering Progress, 2021, 40(2): 722-735.
9	杨群芳. 制冷剂水合物蓄冷技术研究现状及应用前景[J]. 科技信息, 2012(17): 39-40.
	Yang Q F. Research status and advance of refrigerants hydrate cooling storage technology[J]. Science & Technology Information, 2012(17): 39-40.
10	李廷勋, 鲁健, 何东财, 等. 新型替代制冷剂房间空调器系统特性实验研究[J]. 制冷学报, 2015, 36(3): 56-60.
	Li T X, Lu J, He D C, et al. An experiment study on performance of new alternatives in room air-conditioner[J]. Journal of Refrigeration, 2015, 36(3): 56-60.
11	王英梅, 牛爱丽, 张兆慧, 等. 二氧化碳水合物快速生成方法研究进展[J]. 化工进展, 2021, 40(S2): 117-125.
	Wang Y M, Niu A L, Zhang Z H, et al. Research progress on rapid generation methods of carbon dioxide hydrate[J]. Chemical Industry and Engineering Progress, 2021, 40(S2): 117-125.
12	丁宇, 荣少杰, 刘青松. 四丁基溴化铵-二氧化碳体系中不同结构水合物生成条件测量与模型预测研究[J]. 当代化工研究, 2022(19): 27-29.
	Ding Y, Rong S J, Liu Q S. Experimental and modeling study on phase equilibria of the different semiclathrate hydrates fomred by tetra-n-butyl ammonium bromide + carbon dioxide[J]. Modern Chemical Research, 2022(19): 27-29.
13	程传晓, 李伦, 胡深, 等. 鼓泡法强化甲烷水合物成核及生长研究[J]. 低温与超导, 2021, 49(2): 55-60, 104.
	Cheng C X, Li L, Hu S, et al. Study on the enhancement of nucleation and growth of methane hydrate by bubbling[J]. Cryogenics & Superconductivity, 2021, 49(2): 55-60, 104.
14	Rahul S, Chandan S, Rajnish K, et al. Impact of acetamide, 1, 2, 4-triazole, and 1-dodecyl-2-pyrrolidinone on carbon dioxide hydrate growth: Application in carbon dioxide capture and sequestration[J]. Journal of Environmental Chemical Engineering, 2023, 11(3): 110103.
15	Stoporev A S, Semenov A P, Medvedev V I, et al. Nucleation of gas hydrates in multiphase systems with several types of interfaces[J]. Journal of Thermal Analysis and Calorimetry, 2018, 134(1): 783-795.
16	Li H J, Wang L G. Hydrophobized particles can accelerate nucleation of clathrate hydrates[J]. Fuel, 2015, 140: 440-445.
17	Childers M C, Daggett V. Insights from molecular dynamics simulations for computational protein design[J]. Molecular Systems Design & Engineering, 2017, 2(1): 9-33.
18	Yang L, Fan S S, Wang Y H, et al. Accelerated formation of methane hydrate in aluminum foam[J]. Industrial & Engineering Chemistry Research, 2011, 50(20): 11563-11569.
19	Liu X W, Tian L Q, Chen D Y, et al. Accelerated formation of methane hydrates in the porous SiC foam ceramic packed reactor[J]. Fuel, 2019, 257: 115858.
20	Li R L, Liu D P, Yang L, et al. Rapid methane hydrate formation in aluminum honeycomb[J]. Fuel, 2019, 252: 574-580.
21	Lu Y Y, Ge B B, Zhong D L. Investigation of using graphite nanofluids to promote methane hydrate formation: Application to solidified natural gas storage[J]. Energy, 2020, 199: 117424.
22	Xu G, Xu C G, Wang M, et al. Influence of nickel foam on kinetics and separation efficiency of hydrate-based Carbon dioxide separation[J]. Energy, 2021, 231: 120826.
23	Ekambara K, Dhotre M T, Joshi J B. CFD simulations of bubble column reactors: 1D, 2D and 3D approach[J]. Chemical Engineering Science, 2005, 60(23): 6733-6746.
24	Bhole M R, Joshi J B, Ramkrishna D. CFD simulation of bubble columns incorporating population balance modeling[J]. Chemical Engineering Science, 2008, 63(8): 2267-2282.
25	雷建勇. 通气结构对鼓泡容器内气液两相分布的影响[D]. 西安: 西北大学, 2014.
	Lei J Y. Effect of aeration structure on gas-liquid two-phase distribution in bubbling container[D]. Xi'an: Northwest University, 2014.
26	于萍. 工程流体力学[M]. 2版. 北京: 科学出版社, 2015.
	Yu P. Engineering fluid mechanics[M]. 2nd ed. Beijing: Science Press, 2015.
27	张师帅. CFD技术原理与应用[M]. 武汉: 华中科技大学出版社, 2016.
	Zhang S S. Principle and application of CFD technology[M]. Wuhan: Huazhong University of Science and Technology Press, 2016.
28	Laborde-Boutet C, Larachi F, Dromard N, et al. CFD simulation of bubble column flows: Investigations on turbulence models in RANS approach[J]. Chemical Engineering Science, 2009, 64(21): 4399-4413.
29	Zhang D, Deen N G, Kuipers J A M. Numerical simulation of the dynamic flow behavior in a bubble column: a study of closures for turbulence and interface forces[J]. Chemical Engineering Science, 2006, 61(23): 7593-7608.
30	Sommerfeld M, Decker S. State of the art and future trends in CFD simulation of stirred vessel hydrodynamics[J]. Chemical Engineering & Technology, 2004, 27(3): 215-224.
31	Chung K H K, Simmons M J H, Barigou M. Angle-resolved particle image velocimetry measurements of flow and turbulence fields in small-scale stirred vessels of different mixer configurations[J]. Industrial & Engineering Chemistry Research, 2009, 48(2): 1008-1018.

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