ENERGY MANAGEMENT IN LIGHTING SYSTEMS

摘要

In the past few years more and more attention has been focused on the application of lighting controls to provide an energy efficient lighting installation in indoor as well as in outdoor applications. As we move steadily into the new century it seems abundantly clear that the major issue confronting commercial building designers, developers, owners and occupiers is energy efficiency. Although efficient energy usage has been a recurring theme throughout the past two decades we are now approaching the subject with greater rationale and maturity than perhaps we tended to in the past. Energy management must stand on its own, rather than appeal to the investors sense of society; thus measures to improve energy efficiency must offer investors competitive returns on investment. Savings are achieved by simply to utilise available daylight, compensate for lamp lumen depreciation, compensate for over design and due to that save on air-conditioning costs. The total savings of a stepless lighting control system range from 20% to 50%, typically 35%. Daylight is not absolutely necessary to achieveinood savings. Important is that a lighting control system is not disturbing the occupants, meaning a successful system is completely transparent to the ,,user". Systems can be installed in new installations as well as in retrofit situations. The proper design and the commissioning are important to achieve good savings. Lighting control systems can be linked to a building control system however the experience shows that the simpler a system the easier they are to operate and the more reliable they operate. "Everything has to be done as simple as possible but not simpler" (quote Albert Einstein).