English  |  正體中文  |  简体中文  |  Items with full text/Total items : 74010/74010 (100%)
Visitors : 24080542      Online Users : 561
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version

    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/67409

    Title: 以田口法優化LED車燈散熱系統之研究;The study for optimization of LED headlight cooling system by using Taguchi Methods
    Authors: 陳建宏;hung,Chen chien
    Contributors: 光電科學與工程學系
    Keywords: 田口式直交表實驗法;直交表;熱管;LED車燈;Taguchi Method;Orthogonal arrays;Heat pipe;LED headlight
    Date: 2015-04-15
    Issue Date: 2015-05-08 15:33:19 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 本研究是利用熱管的高導熱特性,應用在機車車燈散熱系統上,並採用田口式直交表實驗計畫法優化,參數設計採用八個合適的設計參數,分別是熱管壓扁厚度、鰭片的數目、鰭片之間距、鰭片之厚度、鰭片之高度、散熱片長度、鰭片上之輻射材質(放射率)、MCPCB尺寸等控制因子,每個因子分別有三個水準做參數設計,調整參數以降低LED車燈中LED之溫度。
    選用田口式直交表實驗法的L18(21×37)直交表來設定各組參數值,再利用計算流體力學(Computational Fluid Dynamics, CFD)模擬,求得最後溫度。
    ;This research using heatpipe in thermal cooling system of motorcycle’s headlight, and executing Taguchi method to analysis. We establish the eight parameters such as the thickness of heat pipe, and number of fins, the pitch of fins, the fin thickness, the height of fin, the heat sink length, the radiation material on heat sink, and the size of MCPCB. After the above eight parameter must be determined. Next, these parameters are divided into three levels separately in order to reduce the Tc that on the MCPCB temperature of LED headlight.
    By using Taguchi Method makes the optimization of LED headlight cooling system easier whereas the simulation times of the 8 parameters and the 3 levels of each parameter will be in total 4374 times. We establish a product that can effectively reduce simulation times to 18. The Tc temperature of LED headlight is lower than all of probable combination exactly. And using CFD(Computational Fluid Dynamics) to simulate the system finally get the Tc temperature.
    The original design of cooling system without optimization by Taguchi Method, the Tc temperature of cooling system was 86.17°C. With the optimal optimization design we can reach the Tc is 76.11°C, the temperature of sink and MCPCB was significantly decreased. Moreover the optimization by Taguchi Method design can get the best construction in as short time. Therefore, this research for the cooling components decreases development time and the cost of production.
    Because use other fluid in this system could decease the temperature of system, so this research take pure water as the cooling fluid contact with the heat sink. Then can get the optimal water volume in this cooling system. It is useful to down the Tc temperature to 63°C.
    Appears in Collections:[光電科學研究所] 博碩士論文

    Files in This Item:

    File Description SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明