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 off reactive power. Turn Get rid of the stroboscopic effect. the the light Increase 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.
18
13
Watts
2.000
17.000
hours
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
Nยบ 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 LIGHTING LEVELS MEASURED WITH ORIGINAL INSTALLATION CLASSROOM 203 December 19th, 2013 LEVEL OF LIGHTING WITH BLINDS PULL DOWN (LUX)
Y 8m
113
224
172
170
203
167
7m
134
226
215
216
240
181
6m
160
240
227
232
246
151
5m
165
167
181
195
190
174
4m
125
187
160
168
240
221
3m
116
245
191
202
310
203
2m
154
237
196
197
263
195
1m
146
150
175
171
203
156
1m
2m
3m
4m
5m
6m
X
LIGHTING LEVELS MEASURED AFTER NEW INSTALLATION CLASSROOM 2013 LEVEL LIGHTING WITH BLINDS PULL DOWN (LUX)
Y 8m
240
330
260
260
350
210
7m
260
390
320
310
410
240
6m
270
410
330
320
420
250
5m
230
350
280
280
365
220
4m
230
420
300
280
450
240
3m
270
630
380
350
650
310
2m
270
610
360
340
630
320
1m
240
550
320
300
570
260
1m
2m
3m
4m
5m
6m
X
Y
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:
8m
212%
147%
151%
153%
172%
126%
7m
194%
173%
149%
144%
171%
133%
6m
169%
171%
145%
138%
171%
166%
5m
139%
210%
155%
144%
192%
126%
4m
184%
225%
188%
167%
188%
109%
• HIGH EFFICIENCY FLUORESCENT
3m
233%
257%
199%
173%
210%
153%
LAMPS =
2m
175%
257%
184%
173%
240%
164%
1m
164%
367%
183%
175%
281%
167%
1m
2m
3m
4m
5m
6m
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%
• LED LIGHTING =6,9
2,8 YEARS
YEARS
Turn off the light