Self-sufficient energy recycling of light emitter diode/thermoelectric generator module for its active-cooling application

•A novel light emitting diode/thermoelectric generator module is implemented.•The waste heat recycling for both self-sufficient and active-cooling functions is validated.•The improvements in the illuminance and working temperature of the lighting device are demonstrated. This paper presents the ener...

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Bibliographic Details
Published in:Energy conversion and management 2016-06, Vol.118, p.170-178
Main Authors: Tsai, Huan-Liang, Le, Phuong Truong
Format: Article
Language:English
Subjects:
Active cooling
Computer simulation
Cooling
Devices
Illuminance
Light emitting diode
Matlab
MATLAB/Simulink
Modules
Recycling
Thermoelectric generator
Thermoelectric generators
Waste heat recovery
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Summary:•A novel light emitting diode/thermoelectric generator module is implemented.•The waste heat recycling for both self-sufficient and active-cooling functions is validated.•The improvements in the illuminance and working temperature of the lighting device are demonstrated. This paper presents the energy recycling and self-sufficient application of a novel high-power light emitting diode integrating with a thermoelectric generator module. The proposed lighting module in which a thermoelectric generator device is sandwiched between light emitting diode device and heat sink autonomously recycles the waste heat to self-sufficiently support for its active cooling with an electrical fan. The start-up responses of illuminance, temperature, current and power for the proposed module were evaluated through experimental measurement. The corresponding mathematical model was derived and simulation model was built using MATLAB/Simulink for verification. The illuminance, electrical, and thermal performances have a close agreement between experiment and simulation results. The technological viability about both autonomous operation and self-sufficient energy recycling for the novel module with the active cooling was validated. Compared with passive-cooling devices, the proposed module declines the working temperature and improves illuminance simultaneously.
ISSN:0196-8904
1879-2227
DOI:10.1016/j.enconman.2016.03.077