B. GMP Indoor Litg Design 2009

7/28/2019 B. GMP Indoor Litg Design 2009

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2. Eco-friendly Indoor Lighting Design

BCA-GMP-Sesh-2009

BCA Academy (GMP) Programme

Module: Efficient Eco-lighting systems

(indoor & Outdoor)

Changing Scenario of Offices

ComfortComfort

CostCost

PerformancePerformance

BCA-GMP-Sesh-2009

AmbienceAmbienceImageImage


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What does this mean for Lighting ?Change in Lighting Parameters

Changing Scenario in Offices

Lighting Equipment : Trends in lamps, ballastsand luminaires

Light Quantity ( lux) : As per National Standards

Light Quality : Glare Control

: Colour Temperature

BCA-GMP-Sesh-2009

: o our en on

Lighting Controls : Flexibility to users

: Energy Savings Vs investment ??

WORKING ENVIRONMENT

What is good Lighting ?

WORKING ENVIRONMENT

What is good Lighting ?

Sound/noise

Hygiene

Heating/cooling

LIGHTING

health

vision

surrounds

Eye/vision

(Visual) task

performance

Speed/failure rate

Physical/mental health

Productivity

Sound/noise

Hygiene

Heating/cooling

LIGHTING

vision

surrounds

Eye/vision

(Visual) task

performance

Speed/failure rate

Physical/mental health

Productivity

BCA-GMP-Sesh-2009

n rastructureFurniture

Machinery

Etc.

TASKAbsenteeism

It is a Facilitator of vision and health

Infrastructure

Furniture

Machinery

Etc.

TASK

Safety/accidentsAbsenteeism

It is a Facilitator of vision and health


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Bare fittings

light in all direction

Optical Systems : Evolution

lamp visible .. glare

Basic look

J ust White reflector

upward light directed downward

BCA-GMP-Sesh-2009

lamp still visible .. no ambience

Opal/Prismatic cover

diffused li hts


lamp not visible .. glare reduction

decorative look

high absorption

reduction in efficiency

Mirror systems

BCA-GMP-Sesh-2009

Shaping light distribution

Controls glare

Improves System and energy efficiency


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Mirrors


Precise control of light distribution

Directs light to where needed

The right light at the right place

Consist of

Side Reflectors and cross lamellae

Shape , Size and Finish determines light distribution / screening

BCA-GMP-Sesh-2009

Different Types of Optical Systems

Optical Systems: Evolution

BCA-GMP-Sesh-2009

M5 parabolic side-

mirrors with parabolic

lamellae

M2 facetted mirror

with profiled lamellae


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Different Types of Optical Systems


C6 ( High Gloss)

parabolic mirror and

special parabolic

lamellae

BCA-GMP-Sesh-2009

StandardsStandards

BCA-GMP-Sesh-2009


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National

Lighting society Standardisation institute

LiTG (D) DIN

Indoor lighting standards

Europe

NSVV (NL) NEN

IES (USA) ANSI

CEN

BCA-GMP-Sesh-2009

World CIE ISO

Recommendations

1) Entrance Halls : 200 - 500 Lux

SS 531: 2006 general recommendations

2) Dining Areas : 200 - 500 Lux3) Kitchen : 300 - 750 Lux4) Guest Rooms : 75 - 150 Lux5) Corridors & Stairs : 100 - 200 Lux6) Lift Interior : 75 - 150 Lux7) Enquiry Desk : 300 - 750 Lux8) Offices : 300 - 750 Lux

-

BCA-GMP-Sesh-2009

10) Ramps : 50 - 100 Lux11) Entrance & Exit : 50 - 300 Lux12) Control Booth : 150 - 300 Lux


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Key Lighting ParametersKey Lighting Parameters

Office LightingOffice Lighting

BCA-GMP-Sesh-2009

Quality aspect Quality parameter

SS 531: 2006 Office areas

Lighting level

Uniformity

Glare restriction

Colour rendering

maintained illuminance

Emin /E avUGR

CRI = Ra

BCA-GMP-Sesh-2009


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Sl.No

Type of Interior E(Lux)

UGR Ra

SS 531: 2006 Office areas

. ,

3.2 Writing, reading, Dataprocessing

500 19 80

3.3 Technical drawings 750 16 80

3.4 CAD work stations 500 19 80

BCA-GMP-Sesh-2009

3.5 Conf&Meeting rooms 500 19 80

3.6 Reception desk 300 22 80

3.7 Archives 200 25 80

Lighting of Indoor workplaces

LIGHTING ENVIRONMENT

BCA-GMP-Sesh-2009


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Lighting for indoor work places

Definitions Luminance distributionLuminance distribution

Reflectance of surfaces

Illuminance of surfaces

Useful reflectance Min. Max.

Ceiling 0.7 0.6 0.9

BCA-GMP-Sesh-2009

Wall 0.5 0.3 0.8

Working plane 0.6 0.2 0.6

Floor 0.3 0.1 0.5


Definitions Task and surrounding areasTask and surrounding areas

Task / Surroundin areaTask / Surroundin area Illuminance

Task Surrounding

750 lux 500 lux500 lux 300 lux

300 lux 200 lux

200 lux 200 luxTask

Surrounding

BCA-GMP-Sesh-2009

Uniformity (Emin/Eave)

Task Surrounding

0.70 0.50

> 0.5 m


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Previous Approach - lighting requirements for offices (CIE)

Lighting requirements (Traditional)

Former approach (Space related)Avera e illuminancelevels onthe workin lane

500 lux (minimal on the w orking plane)500 lux (minimal on the w orking plane)

0.8m

1.6m

BCA-GMP-Sesh-2009

filing, copying, circulation areas 300 luxwriting, typing, reading, data processing areas 500 lux

technical drawing offices 750 luxCAD work stations 500 luxconference and meeting rooms 500 luxreception desk areas 300 luxarchives 200 lux

Concentration area Communication area ED

New Direction Lighting requirements

TASK - Communication

zone (B) Lighting level : 300-1000 lux Colour Temp. : 3000-5000K Colour rendering: 80-100

TASK - concentration

zone (A) Lighting level : 300-1000 lux Colour Temp. : 3000-5000K Colour rendering: 80-100

Control

switching

steps

300 lux (orientation lightin g)300 lux (orientation lightin g)

A A B

C

dualtask

Club officeO.2m

BCA-GMP-Sesh-2009

Glare restriction :No direct glare

uniformity :>0.5 (table) Beam shape : wide beam

Glare restriction :0.7 (task area) Beam shape : triangle or asym

ROOM - Walls (E)

Lighting level : >200 lux (Vert.) Colour Temp. : 3000-4000K Colour rendering: 80-100 Glare restriction : - uniformity : >0.1 Beam shape : -

ROOM - Ceiling (D)

Lighting level : >150 lux Colour Temp. : 3000-4000K Colour rendering: 80-100 Glare restriction : - uniformity : >0.5 Beam shape : -

ROOM - Floor(C)

Lighting level : >300 lux (hor.) Colour Temp. : 3000-4000K Colour rendering: 80-100 Glare restriction : - uniformity : >0.3 Beam shape : -

Controlcollectivelycontrolled

Indivi

Collectivespace

Decorative

elementsVariation& surpriseHow often

are theextremesapplied?


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> 500 lx

Example Office Lighting


mm

mm

mm

uniformity

> 0.7> 300 lx

uniformity

> 0.5

BCA-GMP-Sesh-2009

4800mm

360

360

> 200 lx

Illuminances are maintained levels

Lighting for indoor work placesDefinitions Maintenance factor

Initial illuminance

Maintained

illuminance

Service illuminance

100%

Eave

BCA-GMP-Sesh-2009

Operating time

Maintenanceinterval


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Lighting of Indoor workplaces

DIRECT AND INDIRECT GLARE

BCA-GMP-Sesh-2009

Luminance and illuminance

Lighting for indoor work placesDefinitions (direct and indirect glare)

luminous

intensit Iluminance L

2

luminance L

[candela/m2]

BCA-GMP-Sesh-2009

illuminance E [lux]

[candela]


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UGR


Definitions (direct glare) UGR

Complicated system to limit direct

glare caused by the luminaires

in the room

BCA-GMP-Sesh-2009

Luminance limits for

Lighting for indoor work placesDefinitions (indirect glare)

luminaires which can bereflected in the screen

Two luminaire classifications:

Screen quality2

BCA-GMP-Sesh-2009

Screen quality

poor < 200 cd/m2

above 650


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Definitions (indirect glare)

reflected in the screen

Screen classes in accordance

with ISO 9241-7I IIIII

Screen quality good poor medium

Average luminance of luminaires 1000 200

BCA-GMP-Sesh-2009

which are reflected in the screen cd / m2 cd / m2

above 650

Note: In some special places 550 should be appliedFor display screen with screen tilt up to 150

Industrial lighting

BCA-GMP-Sesh-2009


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Basic lighting solutions: Linear light sources

Industry Lighting

Point light sources

(High intensity

Dischar e lam s

BCA-GMP-Sesh-2009

Application h < 6 m

Industry Lighting

95-100 % 'TL'D lamps

5% HID lamps

BCA-GMP-Sesh-2009


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Application 6 < h < 12 m

Industry Lighting

TL'D lamps HID lamps

BCA-GMP-Sesh-2009

Application h. 12 m

Industry Lighting

HID lamps

BCA-GMP-Sesh-2009


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PrinciplesPrinciples

BCA-GMP-Sesh-2009

1.Determine the function and

need2. Select the Lighting

level from relevant

Standards for particular

Guidelines

function

BCA-GMP-Sesh-2009


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Calculate No. of luminaires

Determine light ing

parameters

Input Preparation Output Preparation

Guidelines

Prepare Recommendation

Cost Calculation

g ng eve

uniformity

colour Rendering

colour temperature

glare

BCA-GMP-Sesh-2009

e ec qu pmen

lamp

luminairegears

control

Determine , length , width and height of working space

Calculate Room Index

Lumen method of Calculation

engt x w t

K = Mounting height x (length +width)

Select the reflection factors of ceiling/wall /floor rc / rw,/ rf(For offices , 0.7 . 0.5,0.3 .. are common values)

Select the luminaire and lamp types

Choose Utilisation factor (UF) from the UF table

BCA-GMP-Sesh-2009

eec an enance ac or Use the pre-selected illuminance

Calculate no. of luminaires

Arrange the luminaires in a suitable grid


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Utilisation Factor TableIndication of efficiency ofluminaire

Utilisation Factor Table

..... with respect to

Room Index

Surface Reflection factors

Designers tool for

calculation of quantity of

BCA-GMP-Sesh-2009

Maintenance Factors: Guidelines

Air Conditioned interiors 0.85

Non Air-conditioned interiors 0.80

Industrial Areas ( normal) 0.7 - 0.75

Industrial Areas ( dusty) 0.65- 0.7

BCA-GMP-Sesh-2009


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Calculation of No. of luminaires (N) by LumenMethod

Step by Step Approach for Calculation

E X L X W

N =

C X T X UF X MF

where ,

E = Average Illuminance (lux)

L = Length of room in m

BCA-GMP-Sesh-2009

W = Width of Room in m

C = Light output / lamp

T = No. of lamps per luminaire

UF = Utilisation factor

MF = Maintenance Factor

B. GMP Indoor Litg Design 2009

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