학술논문

LED lamp for dairy barns - design and thermal management
Document Type
Conference
Source
2016 XXV International Scientific Conference Electronics (ET) Scientific Conference Electronics (ET), International. :1-4 Sep, 2016
Subject
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Nuclear Engineering
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Light emitting diodes
Lighting
Temperature measurement
Cows
Thermal resistance
Thermal management
Temperature dependence
LED thermal management
illumination dairy barns
Language
Abstract
Investigations in this work are connected with the design and thermal management of LED lamp with spectral characteristics suitable for dairy barns. Spectral power distribution (SPD), optimal for dairy cows is achieved by combinations of LEDs with different spectral characteristics and the control of the LEDs' operation. The thermal management theoretical calculations and the heat sink choice are experimentally tested at various ambient conditions (air temperatures from 20°C to 45°C) and at different currents through the LEDs. Infrared thermography is used for evaluation of temperature distribution at the LEDs' solder points and the heat sink. Thermal management investigations allow the determination of safe operating conditions for the LEDs at various ambient conditions.