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ingineria iluminatului - Journal of Lighting Engineering - Prof. Florin ...

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C BIANCHI, Andreea BIRO<br />

Buildings designed for intellectual and<br />

physical activities world-wide are equipped<br />

with automatic, intelligent control systems,<br />

shown in Figure 2, that act upon the<br />

functional installation systems to ensure the<br />

The architectural and<br />

constructive structure<br />

Figure 2 Automatic control scheme for intelligent modern buildings<br />

2 Main factors that contribute to the<br />

energy efficiency <strong>of</strong> buildings<br />

Researches made at global level show that<br />

the energy consumption <strong>of</strong> lighting systems<br />

is different in the case <strong>of</strong> buildings with<br />

different functions. Buildings designed for<br />

intellectual and commercial activities use<br />

up to 40-50% <strong>of</strong> the total consumed energy,<br />

while in the case <strong>of</strong> industrial buildings the<br />

ENERGETIC STRUCTURE<br />

<strong>of</strong> a building<br />

Automatic (intelligent) and<br />

permanent<br />

command and control system<br />

EFFECTS<br />

recommended parameters in order to<br />

achieve the state <strong>of</strong> comfort (thermal, air<br />

quality, acoustic and luminous) required by<br />

human activities.<br />

Functional installation<br />

systems<br />

Permanently and constantly ensuring<br />

the comfort required by human activity<br />

(heating, air quality, acoustic and<br />

luminous comfort)<br />

percentage goes down to 20% (in this case,<br />

the structures that support the industrial<br />

process have a greater importance).<br />

Figure 3 shows that the only way to<br />

reduce the energy consumption <strong>of</strong> interior<br />

lighting systems is by implementing<br />

modern designs that are based on the<br />

integrated use <strong>of</strong> natural light and electric<br />

light.<br />

24 Ingineria Iluminatului 2010; 12, 2: 23-31

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