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Huan-liang Tsai – One of the best experts on this subject based on the ideXlab platform.

  • self sufficient energy recycling of light emitter diode thermoelectric generator module for its Active Cooling application
    Energy Conversion and Management, 2016
    Co-Authors: Huan-liang Tsai

    Abstract:

    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.

  • Self-sufficient energy recycling of light emitter diode/thermoelectric generator module for its ActiveCooling application
    Energy Conversion and Management, 2016
    Co-Authors: Huan-liang Tsai, Phuong Truong Le

    Abstract:

    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.

Emmanuel Guillot – One of the best experts on this subject based on the ideXlab platform.

  • solar furnace temperature control with Active Cooling
    Solar Energy, 2018
    Co-Authors: Bertinho A Costa, J M Lemos, Emmanuel Guillot

    Abstract:

    Abstract The article describes a control architecture for solar furnaces where Active Cooling is employed to improve the tracking of a time-varying temperature reference. This capability is important during the decreasing phase of the temperature reference where heat loss must be increased. The results of two different control methodologies, exact linearization and model predictive control with integral action, are shown with Active Cooling that is done in coordination with the command of the shutter which adjusts the solar incident power. The controller parameters are computed from the temperature dynamics which is identified off-line from collected process data. This approach is used to avoid online adaptation mechanisms of the controller parameters, that may cause stability problems during the controller startup, and may melt the testing material sample. The novelty of the present work is to present a control architecture that coordinates the operations of the shutter together with the application of Active Cooling. This methodology improves temperature reference tracking and increases the usability and the operation of solar furnaces.

  • ECC – Control of a solar furnace using Active Cooling
    2016 European Control Conference (ECC), 2016
    Co-Authors: Bertinho A Costa, J M Lemos, Emmanuel Guillot

    Abstract:

    This paper explores a control architecture for a solar furnace that uses Active Cooling to improve the temperature reference tracking during the decreasing phase of the reference. This is done in conjunction with the command of the shutter that adjusts the incident power and compensates sun power variability due to weather conditions. The controller uses exact linerization coupled with a PI controller to handle model parameter uncertainty. Off-line identification is employed to characterize the temperature dynamics, this is used to avoid online adaptation mechanisms that may cause stability problems during the controller startup, that may melt the material sample. Experimental results obtained from the plant in closed loop control using Active Cooling are presented.

Phuong Truong Le – One of the best experts on this subject based on the ideXlab platform.

  • Self-sufficient energy recycling of light emitter diode/thermoelectric generator module for its ActiveCooling application
    Energy Conversion and Management, 2016
    Co-Authors: Huan-liang Tsai, Phuong Truong Le

    Abstract:

    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.