2014

Improvement and optimization of the lighting system in our classroom by means of: ◦ Uniformity of the lighting level.

◦ Improvement of the lighting comfort and its adaptation to the teaching activity.

◦ Improvement of the chromatic reproduction.

◦ Decrease of the electric power comsumption.

◦ Awareness of everything related to energy consumption.

Information from teachers as well as energy and environment issues studied in different subjects.

IDAE (Instituto de Diversificación y Ahorro Energético). Energy Efficiency on Ligting at Schools Guide

Remove the traditional electric ballast.

› Each luminaire consumes 1.5 times the power of the intalled fluorescent lamps.

Reduce the reactive power.

Get rid of the stroboscopic effect.

Increase the useful life of the fluorescent lamps.

Increase and improve the lighting levels and the choromatic reproduction.

Save energy and money. Raise awareness of the unnecessary comsuption.

Turn off

the light

13

18

Watts

2.000 hours

17.000 hours

NO FLASHING

BEST VISUAL COMFORT

EVEN BETTER THAN THE

HIGH EFFICIENCY

FLUORESCENT LAMPS

ELECTRIC POWER MEASUREMENT

ELECTRIC CURRENT MEASUREMENT

VOLTAGE MEASUREMENT

DIMENSIONS OF THE CLASSROOM

COLOURS OF THE FLOOR, CEILING AND WALL

NUMBER OF LUMINARIES AND THEIR COORDINATES

LEVELS OF LIGHTING

DATA OBTAINED FROM THE FORMER SYSTEM OF THE CLASSROOM

Electrical voltage 236,8 V

Total current 6,01 A

Active power 840 W

Reactive power 1125 VAr

Apparent power 1404 VA

Cos phi 0,59 inductive

Surface 56,2 m2

Nº of installed luminaires 8 de 4 fluorescents each one

Luminaires coordinates See plans

Average lighting level 191, 67 lux

Uniformity factor: Emax/Emin 1,70

Computer Aided Design –CAD 3D- and Spreadsheet

Y

8 m 113 224 172 170 203 167

7 m 134 226 215 216 240 181

6 m 160 240 227 232 246 151

5 m 165 167 181 195 190 174

4 m 125 187 160 168 240 221

3 m 116 245 191 202 310 203

2 m 154 237 196 197 263 195

1 m 146 150 175 171 203 156

1 m 2 m 3 m 4 m 5 m 6 m X

LIGHTING LEVELS MEASURED WITH ORIGINAL INSTALLATION

CLASSROOM 203 December 19th, 2013

LEVEL OF LIGHTING WITH BLINDS PULL DOWN (LUX)

Y

8 m 240 330 260 260 350 210

7 m 260 390 320 310 410 240

6 m 270 410 330 320 420 250

5 m 230 350 280 280 365 220

4 m 230 420 300 280 450 240

3 m 270 630 380 350 650 310

2 m 270 610 360 340 630 320

1 m 240 550 320 300 570 260

1 m 2 m 3 m 4 m 5 m 6 m X

LIGHTING LEVELS MEASURED AFTER NEW INSTALLATION

CLASSROOM 2013

LEVEL LIGHTING WITH BLINDS PULL DOWN (LUX)

Y

8 m 212% 147% 151% 153% 172% 126%

7 m 194% 173% 149% 144% 171% 133%

6 m 169% 171% 145% 138% 171% 166%

5 m 139% 210% 155% 144% 192% 126%

4 m 184% 225% 188% 167% 188% 109%

3 m 233% 257% 199% 173% 210% 153%

2 m 175% 257% 184% 173% 240% 164%

1 m 164% 367% 183% 175% 281% 167%

1 m 2 m 3 m 4 m 5 m 6 m

Green shaded area fitted with LED lights

Average increase above the original system 160%

Brown shaded area fitted with high efficiency fluorecent lamps

Average increase above the original system 201%

INCREASED LEVELS OF LIGHTING REGARDING

THE ORIGINAL SYSTEM

Amortization period taking into

account the energy saving and

the useful life of the different

lighting systems:

• LED LIGHTING =6,9 YEARS

• HIGH EFFICIENCY FLUORESCENT

LAMPS = 2,8 YEARS

Turn

off

the

light