step by step street lighting simulation with osram leds in dialux

Step by StepStreet Lighting Simulation with OSRAM LEDs in DIALux

Event / Title | December 17, 2008 | SSL | Application Design Center Asia | V.Chen

Page

3

8

12

20

Agenda

• Introduction and Install of DIALux

• Import IES files of OSRAM LEDs

• Quick Street Planning Wizard with DIALux

• Step by Step – Design with OSRAM LEDs in DIALux


What is special about DIALux?

• DIALux - a planning software for your project presentation.

• Calculation: latest radiosity procedures, fast and always correct. • Results: Results can be printed out or transmitted as a pdf file. Each

view and each rendering can be saved as a .jpg file. • Interactive 3-D visualization: Simply move around the room. • Visualization: Use of textures and furniture for realistic rendering. • Photo realism: with integrated raytracing module. • False colours: False colours provide quantitative analysis of

complex geometries at a glance. • Movies: Walk through the photo realistic visualization of your light

planning and send the film to your customer via email. • Interaction: Import and export: .dwg and .dxf files can be imported

and exported with results after completion of the planning process. • DIALux Light: Easy to use, step-by-step lighting design.


Free Download DIALux from website

• Download the DIALux Setup (version DIALux 4.5.0.1 ) from homepage (www.DIAL.de or www.dialux.com) on your hard-disk.

• Language available– deutsch– english– français– italiano– español– 中文

• Download file size: about 250MB

www.DIAL.de or www.dialux.com


Online Update

• If you have already installed old version of DIALux, you could use “ online update” to newest version.

• In DIALux you will find a new menu named “Online”.• After selecting “Online Update…” DIALux automatically checks for newer versions of the

software and for new online PlugIns.• But it will take some time to finish update.


The DIALux User Interface • These three work areas enable effective and clearly arranged planning of lighting

installation with DIALux.

CAD-Window Task Pane

Project manager with Inspector


Page

Agenda





3

8

12

20


.IES or .Idt files

• .IES or .Idt file describe the information of light distribution, luminous flux, and power.

• .IES or .Idt file are very small ( only about 10K) compared to ray data (about 200M).

• OSRAM OS provide both .IES (or .Idt) file and ray data of our LED products on website.


Download .IES file of OSRAM LED from website• http://www.ledlightforyou.com• Tools & Downloads >> Optical Tools


Import .IES file to DIALux






Page

Agenda

3

8

12

20


Quick Street Planning Wizard

• you will find the wizards in the menu File >> Wizard

This wizard guides you through the quick planning for streets.


Street profile and illumination class

• Street profile

• Street name and maintenance factor are likewise inserted on this page.

• In the following window you can fix the individual or combined valuation fields for the street. In order to define photometric requirements for the street, select an illumination class for every valuation field.


Luminaire arrangement

• In the window Luminaire arrangement you can select a luminaire and place this in an arrangement. (You need to import the IES file of OSRAM LEDs first, otherwise you can only select the existing traditional luminaire in DIALux)

• You can optimize the arrangement parameters depending on the predefined photometric requirements.


Start Calculation

• Afterwards a final dialogue will appear automatically. If you activate the checkbox, the generated street will be calculated immediately.

• Click on the Finish button and your street project will be displayed.


Rotate 3D View

Rotate 3D View; left-click and move the mouse while holding the mouse button pressed.


3D light distribution DisplayHelp Rays for Luminaires / 3D light distribution Display / Show false colors in CAD


Show false colors in CAD

• Display the 3D rendering in a false colour rendering

• Easy to check the illuminance uniformity• Freely scaleable value ranges and definable

colour gradients






Page

Agenda

3

8

12

20


Street profile, width, N of lanes, coating…

Step 1: Collecting road information

Information list before design:1. Street location and photos 2. Width of street3. N of lanes4. Coating material5. Existing mounting height or pole distance?

Decide the road classification and required Eav and Uo

according to street lighting standards

Information needed for lighting simulation


Step 2: Edit street in DIALux

Arrangement of street component according to the road information.


Step 3: Decide which LED (color bin and brightness group)• CCT: from 5000K-6500K (LW, LUW)• If need CCT from 4000K-5000K, can be mixed by LUW and LY.

Golden DRAGON PlusGolden DRAGON

with Oval Lens

No need of secondary optical design

Need lens or reflector

Higher brightness


Step 4: Change luminous flux

You can change the luminous flux and power here. It’s related to how many LEDs in one lamp.


Step 5: luminaire arrangement

0.4~0.5

W ≤ 6mN ≤2

Single row

Figure

0.5~0.80.5~0.8Uniformity

W ≥ 16mN ≥4

W ≥ 8mN ≥2Road information

Double row, opposing

Double row, with offsetLighting Class

Normal methods of luminaire arrangement

• Single row

• Double row, opposing

• Double row, with offset

Luminaire arrangement will be decided based on

• street profile

• requirements

• For LUW W5JM, Double row, opposing was recommended.

!Rules of thumb


Step 6: Optimize arrangement parameters

• (1) Mounting Height: 6m~10m• (2) Overhang: 1m~2m• (3) Boom Angle: 10°~15°• (4) Boom Length: 1m~3m• (5) Pole Distance

• These parameter will be optimized according to street profile to achieve best performance: Eav and Uo.

• If a certain Uo was required, the most economic mounting height and pole distance could be optimized.

• Lower distance, longer pole distance could save energy and pole cost.

Mounting Height

Overhang

Boom Angle

Boom Length

Lamp

(5)Pole Distance

Optimize arrangement parameters


Step 7: calculation and simulation

Not so uniform, need to be improved

Double row, opposing0.360.52248.617

Emin/EmaxUoEmax(lx)Emin(lx)Eav(lx)Change to double row, offset

Optimized results

0.720.83221619Emin/EmaxUoEmax(lx)Emin(lx)Eav(lx)

1

2

3


Step 8: Save the selected output as PDF file


Step 9: output design plan

Luminaire arrangement


Step 10: output simulation results

0.720.83221619Emin/EmaxUoEmax(lx)Emin(lx)Eav(lx)

Isolines (E)

Table (E)

Main results

Thank you for your attention.

step by step street lighting simulation with osram leds in dialux

Documents