Dissertation > Excellent graduate degree dissertation topics show

Design and Implementation of High Power White LED Luminaire System for Road Lighting

Author: LinXueQin
Tutor: FengJinYuan
School: South China University of Technology
Course: Optics
Keywords: High-power light-emitting diodes Second optical design Freeform design Road lighting Thermal analysis simulation
CLC: TM923.34
Type: Master's thesis
Year: 2010
Downloads: 559
Quote: 2
Read: Download Dissertation

Abstract


LED lighting products as a \However, the actual design of the product there are still two questions: First: Using trial and error on the LED for secondary light distribution. Disadvantage is dependent on the engineer's design experience, time-consuming, inefficient design. Second, the thermal design unscientific. Direct impact on the life of the lamp, the LED energy-saving advantages do not come out to play. For the design of the practical difficulties encountered, we propose a design method based on solving differential equations. Which addresses the design of blindness but also to ensure the accuracy of the results. For a 120-degree Lambertian method using differential equations derived free surface, obtained by solving the direct freeform surface type data, using optical ray tracing software to validate the design method is reasonable and feasible. Thermal analysis software based on orthogonal test simulates the radiator, fewer supplies through optimized heat dissipation better model structure. In addition, optional equipment, lighting systems and creating actual road test, the test results with the results of simulation software for comparative analysis and thus validate the design of the lens and optimized heatsink structure is reasonable and feasible. This design of the lens is suitable for installation in the planar distribution of the LED array, because the LED light is refracted through the lens after the effective illumination distributed throughout the region, according to road illumination requirements simply increase or decrease the number of LED. This design simplifies the structure of the radiator, so that the model is more easily processed. Experimental results show that, 10m installation height, the total system power is 184.5W, LED total power of the physical illumination system 163.3W 30 × 10m2 and 35 × 10m2 efficiency of illumination uniformity within the region of 0.5 and 0.41, respectively. The lens is designed in this paper DIALUX software simulation results show that the 30 × 10m2 and 35 × 10m2 effective illumination uniformity of the illumination area is 0.78 and 0.645, respectively, relative to the standard 0.4 in, respectively, higher than 95% and 61.25%. In the cooling effect, the paper road lighting system at a room temperature of 24.5 ℃ confined indoors, after 7 hours of continuous work, LED chip junction temperature maintained at 80 ℃ or less. Far less than the value of the LED die maximum temperature 125 ℃. The optimized radiator model in the same working environment compared to the original model of the LED chip junction temperature drops up to 4.01 ℃, its weight is only 71.6% of the weight of the original model, effectively saving cooling materials. In this paper, mathematical algorithm to calculate directly freeform face data points, effectively improve the efficiency of the lens design. Based on CAD, for effective thermal design and analysis of LED lighting product development and design of guiding significance.

Related Dissertations

  1. Research on Related Control Technology of Road Lighting,TM923.5
  2. High-power LED lamps cooling system design and research,TM923.34
  3. Multi-dimensional Light Source for Multi-storey Road Space Lighting Research,U491.53
  4. LED secondary optics design of street lights , car lights,TN312.8
  5. Lighting Design Research Campus On Campus Landscape Lighting Yanshan University,TU113.666
  6. Optical Design and Thermal Analysis for LED Illumination,TN312.8
  7. Research on the Building Methodology of the Artificial Luminous Environment in Urban Landscape Road,TU113.6~67
  8. Research and design of the secondary optical system of LED road lighting,TM923.34
  9. The application of new energy-saving technologies in the Hongqiao hub road lighting design,U491.53
  10. Research and Design of LED Illumination,TM923
  11. Road Traffic Blinding Study of Law and Control Technology,U491.59
  12. Computer-aided Calculation and Analysis of the Roadway Lighting Parameters and Their Applications in Practical Design,U412.2
  13. Study on the Road Lighting in Campus Areas,TU113.6
  14. Study on Relative Efficacy of Light Source on Road Lighting Using Reaction Times,TU113.666
  15. Study on Measurement Methods of Road Lighting,U418.7
  16. Study on the Visibility of Urban Road Lighting,U418.7
  17. Design of Cluster Lighting Controller Using ARM,TM571
  18. Practice and thinking of the non-state-owned Capital Investment in Changzhou and Street Lights,F299.24
  19. Study on the Street Lighting of Pedestrian Malls,TU113
  20. Non-imaging optical system design method and its application in LED street lighting project,TN312.8

CLC: > Industrial Technology > Electrotechnical > Electrification,electrical energy application > Electrical lighting > Bulbs \u0026 Tubes > Semiconductor light emitting light
© 2012 www.DissertationTopic.Net  Mobile