Journal of Guangdong University of Technology ›› 2011, Vol. 28 ›› Issue (2): 56-58.

• Comprehensive Studies • Previous Articles     Next Articles

A Study of Photothermal Conversion of Nanofluids

  

  1. Faculty of Materials and Energy, Guangdong University of Technology, Guangzhou 510090, China
  • Online:2011-06-25 Published:2011-06-25

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Abstract: Two kinds of Nanofluids, used as recycle fluids for collectors with direct absorption of solar energy, were prepared by the “two-step method”. The photothermal conversion properties of the two kinds of nanofluids and their base fluids were studied, the temperature changing with the environmental temperature through the insolation experiment. The results show that Alnanofluids have higher rise velocity and insolation temperature than the base fluids and Carbon Nanotube Nanofluids, and that when the insolation temperature is stable, the insolation temperature of Alnanofluids is nearly 25 ℃ higher than that of the base fluids and 10 ℃ higher than that of the Carbon Nanotube Nanofluids. Thus, Alnanofluids show better photo-thermal conversion properties.

Key words: nanofluids; photothermal property;temperature

［1］ Das S K, Putra N, Roetzel W. Pool boiling characteristics of nanofluids［J］. International Journal of Heat and Mass Transfer, 2003, 46(5):851-862.

［2］ Xie  H,  Wang J,  Xi T, et al. Thermal conductivity enhancement of suspensions containing nanosized alumina particles［J］. Journal of Applied Physics, 2002, 91(7): 4568-4572.

［3］ Keblinski P,  Eastman J A,  Cahill D G. nanofluids for thermal transport［J］. Materials Today.2005,6:35-44.

［4］ Choi S U S. Enhancing Thermal Conductivity of Fluids with Nanoparticles［J］. ASME, 1995, 231: 99-105.

［5］ Mao L B, Zhang R Y, Ke X F, et al. Review of direct absorption solar collection systems［J］. Materials Review, 2007, 21(12):12-15.

［6］ 骆仲泱, 倪明江, 余春江, 等. 纳米流体太阳能窗式集热器:中国, 200610053634.9［P］. 2006-09-27.

［7］ 赵佳飞, 骆仲泱, 寿春晖, 等. 纳米流体辐射特性与太阳能窗式集热器研究［C］∥可再生能源规模化发展国际研讨会暨第三届泛长三角能源科技论坛论文集. 南京: 江苏省能源研究会, 2006: 63-67.

［8］ Tyagi H, Phelan P E, Prasher R. Predicted Efficiency of a NanofluidBased Direct Absroption Solar Receiver［C］∥ASME Energy Sustainability Conference. California, 2007: 729-736.

［9］ 王瑞金. 磁流体太阳能集热器的温度和热流量特性的实验研究［J］. 功能材料, 2007, 38:1227-1230

［10］ 余其铮. 辐射换热原理［M］. 哈尔滨:哈尔滨工业大学出版社, 2000: 179-180.

［11］ 蒋耀庭，王跃. 红外隐身技术与发展［J］. 红外技术，2003，25（5）：7-14.

［12］ 郦江涛，姜卫陵，赵云峰.  红外隐身涂料的研究进展［J］.宇航材料工艺，2000(5):15-18.
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