overview of lighting design using dialux 4.6

Overview of Lighting Design Using Overview of Lighting Design Using DIALUX 4.6DIALUX 4.6

IIEE-ERCSA Annual ConventionIIEE-ERCSA Annual Convention14 November 200814 November 2008

Prepared by Michael T. Santiago, REE

LAD EngineerSaudi Lighting Co. Ltd.

• Development of Lighting

• Why is Lighting Design Important?

• Relevant Lighting Terms

• Criteria in Lighting Design

• What is Dialux and Why use it

• Dialux 4.6 Overview Presentation Proper

What’s in it for me?What’s in it for me?

history importance definitions criteria Dialux 4.6

A Brief History of Lighting Design

SOURCE: IESNA LIGHTING GUIDE


HUMAN NEEDSHUMAN NEEDS

• Visibility Visibility – ability to see objects and information


history definitions criteria Dialux 4.6importance

HUMAN NEEDSHUMAN NEEDS

• Visibility

• Task PerformanceTask Performance – ability to do tasks



HUMAN NEEDSHUMAN NEEDS• Visibility• Task Performance• Mood & AtmosphereMood & Atmosphere – conducive



HUMAN NEEDSHUMAN NEEDS• Visibility• Task Performance• Mood & Atmosphere• Visual Comfort & SafetyVisual Comfort & Safety – well being



COMMON ISSUES

• Overhead GlareOverhead Glare



COMMON ISSUES

• Overhead Glare

• Veiling Glare



COMMON ISSUES

• Overhead Glare

• Veiling Glare

• Shadowing



COMMON ISSUES

• Overhead Glare

• Veiling Glare

• Shadowing

• Gloom



COMMON ISSUES

• Overhead Glare

• Veiling Glare

• Shadowing

• Gloom

• Stroboscopic effect




history definitions criteria Dialux 4.6

ARCHITECTURE

• Egress – Exit / Emergency

importance



ARCHITECTURE

• Egress

• Mounting System – ceiling

importance



ECONOMICS

• Use of HF Control Gears – HPF

• Use of Electronic Control Gears – Dimmable

• Use of Daylighting – with indoor photocells

• Recommendation in using CFL – efficacy

ENVIRONMENT

• Limiting the use of incandescent lamps

• Avoidance of spill light – light pollution

• Saving of Energy

importance

SOURCE: ZUMTOBEL LIGHTING HANDBOOK


RELEVENT LIGHTING TERMS

Light

Luminous Flux

Luminous Intensity

Illuminance

Luminance



LIGHTLIGHT

-The part of the electromagnetic spectrum that can be perceived by the eye.

- region of visible light extends from 380 to 760 nanometers



PHOTOPIC VISION

Daytime adaptation which enable us to see in detailed color. (Eye peak at 555 nanometers)

SCOTOPIC VISION

At even lower illumination, giving completely black and white vision. Nighttime adaptation. (About 400 nanometers)

MESOPIC VISIONMESOPIC VISION

The overall appearance is less colorful under lower illumination level, like those of streetlighting or moonlight. (505 nanometers)



LUMINOUS FLUXLUMINOUS FLUX

- Quantity of Light emiited by a light source

- Unit is in lumen, LM

LUMINOUS EFFICACYLUMINOUS EFFICACY

- measure of a lamps economics efficency

-Ratio of the luminous flux to the electrical power consumed

-- Unit is in lm/W



LUMINOUS INTENSITYLUMINOUS INTENSITY

- Quantity of light radiated to particular direction, radiated per unit of solid angle (steradian)

- Unit is in candela, cd



ILLUMINANCE (E)ILLUMINANCE (E)

- Quantity of luminous flux falling on a unit are of surface

E = F / A , unit is lux

INVERSE SQUARE LAW

-Lux decreases by the square of its distance

Ep = I / d2

COSINE LAW

-Illuminance not perpendicular to source

Ep = I / d2 cos Ø

SOURCE: PHILIPS Lighting Correspondence Course


ILLUMINANCE (E)ILLUMINANCE (E)

- Quantity of luminous flux falling on a unit are of surface

E = F / A , unit is lux

Summer noon, under a cloudless sky 100 000 lux

Ditto, but in the shade 10 000 lux

In the open under a heavily-overcast sky 5000 lux

Artificial light, in a well-lit office 1000 lux

Artificial light, average living-room 100lux

Street lighting 5-30 lux

Full moon, on a clear night 0,25 lux


Calculation by Lumen Method:

The average illuminance produced by a lighting installation or the number of luminaires required to achieve a specific average illuminance, can be calculated by means of utilization factors. The average illuminance Es over a reference surface s can be calculated from the “lumen method” formula.

F x n x N x MF x UFs

Es = ------------------------------

area of surface s

where: F is the initial bare lamp flux (lumens, lm)

n is the number of lamps per luminaire

N is the number of luminaires

Ufs is the utilization factor for the reference surface s

MF is the maintenance factor (dirty: 0.7, normal: 0.8, clean: 0.9)

CRITERIA IN MANUAL CALCULATION


Sample Problem:

Mr. Cruz wants to light up his new warehouse in Laguna. The warehouse measures 20m x 30m. He wants to mount his luminaires on the trusses 8m above finish floor line. What type of luminaire will he use and how many of those will he purchase?

Given: L = 20m, W= 30m, H = 8m, MF = use 0.8Reflectances (use default) : C = 0.7 W = 0.5 F = 0.2

Solution: To obtain UF, solve for Room Index (RI) = A/(L+W)Hw, RI = 1.5

Required Average Illuminance (Eave) for warehouse as per standard is 100 lux



Solution (cont.):

Since mounting height is 8m, use high bay fixture.From UF table of Thorn High Bay, UF = 0.78

Substituting to equation: F x n x N x MF x UFsE = ------------------------------

A (100)(600)

N = ------------------------------- (27500)(1)(0.8)(0.78)

N = 3.49, use 4 sets 250W SON-T high bay lighting fixtureChecking the lighting level, E = 114.4 lux



DIALUX 4.6

HISTORYHISTORY

-- a software project launched by Dial GmbH

-- It started in 1994 in Dial, Ludenscheid, Germany

-- lighting design tool which is continually updated and adapted to the requirements of the planners


WHY SHOULD I USE IT?WHY SHOULD I USE IT?

~ A complete software package FREE OF CHARGE with photo realistic visualization.

~ Available in all main languages of the world (26 languages at present)

~ Import and export to and from all CAD programmes in .dxf and .dwg format

~ Import and use 3ds file format for more realistic models

~ Creation of films for the presentation of photo realistic visualization

~ DIALux is independent and manufacturer-neutral.

~ Incorporates the latest norms and standards as well as the accepted approaches in any respective country

~ Functional in most common Operating Systems

~ Also available, Dialux Light, for quick indoor calculation

~ Ready customizable Indoor, Road, Area and Sports lighting calculation

~ Available wizard for easy calculations


WHERE CAN I DOWNLOAD IT?WHERE CAN I DOWNLOAD IT?

http://dial.de/CMS/English/Articles/DIAL/DIAL.html?ID=1

http://dial.de/CMS/English/Articles/DIAL/DIAL.html?ID=1


DIALUX BASIC OPERATOR USE TRAININGDIALUX BASIC OPERATOR USE TRAINING

ARE YOU READY?

overview of lighting design using dialux 4.6

Career

lighting installation

development of lighting

light source unit

lux street lighting

source ep

tasks source

information source

energy importance