[1] Zhu Songqing, Shi Jinfei,. Structural design and experimental researchof microwave radiation heater for asphalt pavements [J]. Journal of Southeast University (English Edition), 2009, 25 (1): 68-73. [doi:10.3969/j.issn.1003-7985.2009.01.015]
Copy
Structural design and experimental researchof microwave radiation heater for asphalt pavements(
)
沥青路面微波辐射加热器结构设计与实验研究
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 25
- Issue:
- 2009 1
- Page:
- 68-73
- Research Field:
- Mechanical Engineering
- Publishing date:
- 2009-03-30
Info
- Title:
- Structural design and experimental researchof microwave radiation heater for asphalt pavements
- 沥青路面微波辐射加热器结构设计与实验研究
- Author(s):
- Zhu Songqing1; 2; Shi Jinfei1
-
1School of Mechanical Engineering, Southeast University, Nanjing 211189, China
2School of Electrical Engineering and Automation, Xuzhou Normal University, Xuzhou 221116, China
- Keywords:
- asphalt mixtures; microwave heating; temperature distribution; microwave radiation heater; structural design
- PACS:
- TH-39
- DOI:
- 10.3969/j.issn.1003-7985.2009.01.015
- Abstract:
- In order to improve the efficiency of heating and the uniformity of temperature distribution in recycling asphalt mixtures, a pyramidal radiation heater is designed.The principles of designing horn surface size and antenna length are established according to the law of energy conservation and microwave antenna radiation theory.Modeling and simulation are carried out using IE3D software.The simulation results demonstrate that, with a fixed horn surface size, the shortened electric antenna length is the main factor leading to the improved heating uniformity.On the other hand, with a fixed antenna length and diminished surface size, the standing wave ratio decreases with the improved radiation efficiency.Furthermore, the efficiency of radiation drops with increased distance between the horn surface and the asphalt pavement.Microwave heating experiments are carried out using this type of heater.The temperature distribution of asphalt samples is obtained by the grid temperature measurement method, and Matlab simulation is performed.The experimental results are in good agreement with the simulation.
- 为了提高微波加热沥青混合料的效率和温度分布的均匀性, 设计了一种角锥喇叭辐射型加热器.运用能量守恒定律和天线辐射原理, 建立了喇叭口面尺寸和天线长度设计原则.采用IE3D进行了结构建模和仿真运算, 结果表明在喇叭口面尺寸一定的前提下, 天线长度缩短是改善加热均匀性的主要因素;当天线长度不变而口面尺寸减小时, 其驻波比减小, 辐射效率提高;口面离沥青路面距离增加时, 辐射效率下降.对这种结构加热器进行了实验, 采用网格测温法测出了沥青试样表面温度分布并进行了Matlab模拟, 实验结果与仿真具有较好的一致性.
References:
[1] Guo Zhongyin, Li Lihan.Asphalt pavement construction and maintenance technology[M].Beijing:China Communications Press, 2003.(in Chinese)
[2] Zhu Songqing, Shi Jinfei, Wang Hongxiang.Modeling and experiment of microwave heating for hot in-place recycling of asphalt pavements[J].Journal of Southeast University:Natural Science Edition, 2006, 36(3):393-396.(in Chinese)
[3] Boyko L L, Lederer E H.Microwave road patch system [C]//IEEE MTT-S International Microwave Symposium.Ottawa, Ont, Canada, 1978:360-362.
[4] Thuéry J.Microwaves:industrial, scientific, and medical application [M].Norwood:Artech House, 1992:215-216.
[5] ORNL.ORNL invention could make driving a little less bumpy [EB/OL].(1997-03-13)[2008-03-20].http://www.ornl.gov/press-Releases/archive/mr19970513-00.html.
[6] Matsuoka T, Tateiba M.Calculation of scattered power from random medium layers by using radiate transfer theory for the estimation of moisture in soil by microwaves[C]//IEEE Antennas and Propagation Society International Symposium.Columbus, OH, 2003, 1:561-564.
[7] Hopstock D M, Zanko L M.Minnesota taconite as a microwave-absorbing road aggregate material for deicing and pothole patching applications [J].Northland Transporter, 2004, 3:1-16.
[8] Heriberto J D, Michael H T.Implementation of the pyramidal-horn antenna radiation-pattern equations using Mathcad [J].IEEE Antennas and Propagation Magazine, 1999, 41(5):96-99.
[9] Yuan Qiaowei, Chen Qiang, Sawaya Kunio.Performance of adaptive array antenna with arbitrary geometry in the presence of mutual coupling[J].IEEE Transactions on Antennas and Propagation, 2006, 54(7):1991-1996.
[10] Zeland Software, Inc.IE3D manual[M].Fremont, CA, USA:Zeland Software, Inc., 2002.
[11] Cuccurullo G, Berardi P G, Carfagna R, et al.IR temperature measurement in microwave heating [J].Infrared Physics and Technology, 2002, 43(3/4/5):145-150.
Memo
- Memo:
-
Biographies: Zhu Songqing(1969—), male, graduate;Shi Jinfei(corresponding author), male, doctor, professor, shijf@seu.edu.cn.
Foundation items: The Key Project of Science and Technology of Ministry of Education(No.03081, 105085), the Sci-Tech Achievements Transformation Program of Jiangsu Province(No.BA2006068).
Citation: Zhu Songqing, Shi Jinfei.Structural design and experimental research of microwave radiation heater for asphalt pavements[J].Journal of Southeast University(English Edition), 2009, 25(1):68-73.