The effects of graphene oxide nanosheets and ultrasonic oscillation on the supercooling and nucleation behavior of nanofluids PCMs

详细信息    查看全文

• 作者：Yudong Liu ; Yumin Liu ; Pengfei Hu ; Xin Li ; Runnan Gao…
• 关键词：Nanofluids ; Graphene oxide ; Ultrasonic oscillation ; Supercooling degree ; Nucleation
• 刊名：Microfluidics and Nanofluidics
• 出版年：2015
• 出版时间：January 2015
• 年：2015
• 卷：18
• 期：1
• 页码：81-89
• 全文大小：1,696 KB
• 参考文献：1. Amara N, Ratsimba B, Wilhelm A, Delmas H (2004) Growth rate of potash alum crystals: comparison of silent and ultrasonic conditions. Ultrason Sonochem 11:17-1 CrossRef
  2. Borkent BM, Arora M, Ohl CD, De Jong N, Versluis M, Lohse D, M?rch KA, Laseboer E, Khoo BC (2008) The acceleration of solid particles subjected to cavitation nucleation. J Fluid Mech 610:157-82 CrossRef
  3. Brotchie A, Grieser F, Ashokkumar M (2010) Characterization of acoustic cavitation bubbles in different sound fields. J Phys Chem B 114:1010-1016 CrossRef
  4. Cao F, Yang B (2014) Supercooling suppression of microencapsulated phase change materials by optimizing shell composition and structure. Appl Energy 113:1512-518 CrossRef
  5. Chow R, Blindt R, Chivers R, Povey M (2005) A study on the primary and secondary nucleation of ice by power ultrasound. Ultrasonics 43:227-30 CrossRef
  6. Crespo R, Martins PM, Gales L, Rocha F, Damas AM (2010) Potential use of ultrasound to promote protein crystallization. Food Res Int 43:2444-451 CrossRef
  7. Deville S, Maire E, Lasalle A, Bogner A, Gauthier C, Leloup J, Guizard C (2010) Influence of particle size on ice nucleation and growth during the ice-templating process. J Am Ceram Soc 93:2507-510 CrossRef
  8. El Rhafiki T, Kousksou T, Jamil A, Jegadheeswaran S, Pohekar SD, Zeraouli Y (2011) Crystallization of PCMs inside an emulsion: supercooling phenomenon. Solar Energy Mater Solar Cells 959:2588-597 CrossRef
  9. Fan LW, Khodadadi JM (2012) An experimental investigation of enhanced thermal conductivity and expedited unidirectional freezing of cyclohexane-based nanoparticle suspensions utilized as nano-enhanced phase change materials (NePCM). Int J Therm Sci 62:120-26 CrossRef
  10. Günther E, Huang L, Mehling H, D?tsch C (2011) Subcooling in PCM emulsions—part 2: interpretation in terms of nucleation theory. Thermochim Acta 5221(2):199-04 CrossRef
  11. He Q, Wang S, Tong M, Liu Y (2012) Experimental study on thermophysical properties of nanofluids as phase-change material (PCM) in low temperature cool storage. Energy Convers Manag 64:199-05 CrossRef
  12. Heo S, Cho SY, Kim DH, Choi Y, Park HH, Jin HJ (2012) Improved thermal properties of graphene oxide-incorporated poly(methyl methacrylate) microspheres. J Nanosci Nanotechnol 12:5990-994 CrossRef
  13. Hua X, Yu Y, Hou W, Zhou J, Song L (2013) Effects of particle size and pH value on the hydrophilicity of graphene oxide. Appl Surf Sci 273:118-21
  14. Jia LS, Chen Y, Mo SP (2013) Solid-liquid phase transition of nanofluids. Int J Heat Mass Tranf 59:29-4 CrossRef
  15. Khodadadi JM, Hosseinizadeh SF (2007) Nanoparticle-enhanced phase change materials (NEPCM) with great potential for improved thermal energy storage. Int Commun Heat Mass 34:534-43 CrossRef
  16. Khodadadi JM, Fan L, Babaei H (2013) Thermal conductivity enhancement of nanostructure-based colloidal suspensions utilized as phase change materials for thermal energy storage: a review. Renew Sustain Energy Rev 24:418-44 CrossRef
  17. Kiani H, Zhang Z, Delgado A,
• 刊物类别：Engineering
• 刊物主题：Engineering Fluid Dynamics
  Medical Microbiology
  Polymer Sciences
  Nanotechnology
  Mechanics, Fluids and Thermodynamics
  Engineering Thermodynamics and Transport Phenomena
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1613-4990

文摘

Nanofluids phase change materials (PCMs) have attracted extensive attention in cold storage applications recently. This paper presents a latest experimental research about the effects of graphene oxide nanosheets and ultrasonic oscillation on the nucleation behavior and supercooling degree of nanofluids PCMs. The results demonstrate that the supercooling degree of nanofluids is suppressed considerably, and the maximum reduction of supercooling degree was 69.1?%; the nucleation started by 90.7?% time in advance, which indicates that nucleation is easier to achieve in nanofluids because of the heterogeneous nucleation aroused by graphene oxide nanosheets. On the other hand, it is observed that ultrasound oscillation also makes a great contribution to reducing the nucleation time and supercooling degree, and the supercooling degree is almost zero in graphene oxide nanofluids under ultrasound radiation. It is believed that graphene oxide nanofluids will be the excellent candidates for the cold storage materials because of their lower supercooling degrees and shorter nucleation time.