Rack-Mounted Light Engine with Mirror-Lined Ducts for Data Center Illumination
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Solution Overview
Problem
Data centers face inefficiencies in lighting systems, relying on overhead fluorescent fixtures that over-illuminate server racks and aisles, leading to energy wastage and glare, while advanced light management techniques using solid-state lighting and intelligent controls are underutilized.
Innovation Solution
A rack-mounted light engine with a light source and distribution ducts that direct light efficiently to the fronts and backs of electronics cabinets, using mirror-lined ducts for collimated light transport and customizable extraction, minimizing unnecessary illumination and glare.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If overhead fluorescent fixtures are used for general room illumination, then sufficient illumination of equipment panels is achieved, but energy is wasted by over-illuminating server racks and aisle flooring
Solution Approach 1:
The lighting function is extracted from the general overhead fluorescent fixtures and relocated to dedicated rack-mounted light engines positioned at the top of server racks. This extraction allows light to be delivered directly to equipment panels without illuminating unnecessary areas like aisle flooring, thereby maintaining adequate illumination while eliminating energy waste from over-illumination.
Solution Approach 2:
The lighting system transitions from uniform general illumination to localized targeted illumination. Rack-mounted light engines provide focused light directly at equipment panels where it is needed, creating local quality variations in illumination intensity. This ensures sufficient lighting for task performance while avoiding energy waste in areas where light is not required.
2Ease of operation
If overhead fluorescent fixtures provide general illumination, then all areas are lit, but glare is generated and energy efficiency is reduced
Solution Approach 1:
The lighting source is extracted from overhead positions and relocated to rack-mounted units positioned at the top of server racks. This extraction changes the geometry of light delivery, directing illumination downward onto equipment panels at appropriate angles that eliminate glare while maintaining visibility for operators.
Solution Approach 2:
The system implements localized illumination quality control by positioning light sources at the top of racks and directing light precisely onto equipment panels. This creates optimal illumination conditions at the work surface without generating glare, improving ease of operation while eliminating harmful glare effects.
3Ease of manufacture
If conventional fluorescent lighting is used, then simple installation is achieved, but energy consumption is high and cooling loads increase
Solution Approach 1:
The lighting system merges with the existing rack infrastructure by mounting light engines directly on rack units. This integration leverages the established rack mounting ecosystem and standardized installation practices, maintaining ease of manufacture and installation simplicity while transitioning to energy-efficient LED technology that reduces overall energy consumption and cooling loads.
Solution Approach 2:
The system changes the fundamental parameters of the lighting technology from fluorescent to LED sources. This parameter change in the light source technology enables dramatically reduced energy consumption and lower heat generation, thereby reducing cooling loads while maintaining installation simplicity through rack-mounted deployment.
4Area of stationary object
If light is distributed generally throughout the room, then all areas are illuminated, but light efficiency is reduced
Solution Approach 1:
The lighting function is extracted from general room distribution and concentrated at specific rack locations. Rack-mounted light engines deliver light directly to equipment panels, extracting the useful illumination function from wasteful general distribution and concentrating it where needed, thereby improving light distribution efficiency while maintaining coverage of all equipment areas.
Solution Approach 2:
The system implements local quality control by directing light precisely onto equipment panels rather than distributing it generally throughout the room. This localized approach ensures that light energy is concentrated on the intended targets, improving light distribution efficiency while still providing comprehensive coverage of all equipment areas through the distributed rack-mounted units.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces energy consumption by targeting only necessary areas, minimizing glare, and allowing remote heat management, thereby enhancing energy efficiency and reducing cooling loads in data centers.
Implementation Method 1
an electronics enclosure including a plurality of components that includes at least one light source
Implementation Method 2
a light distribution duct positioned to accept an input light from the light source and distribute the input light
Data Source
AI summary
Generally, the present disclosure provides for a light engine, in particular a rack-mounted light engine that can be used in a lighting system. The rack mounted light engine can be positioned in an electronics component rack such a light distribution system using hollow light ducts may distribute the light over a large area, such as a data center. Such a light distribution can use a generated light more efficiently by directing the light to the fronts or backs of the electronics cabinet, rather than for general room illumination.