Mathematical Calculation Model and Its Verification for Temperature Distribution of LED Lighting's Heatsinks for Plant Growth in the Summer Greenhouse

被引：0
|
作者：
Lyu B.-X. [1 ]
Chen Y.-R. [2 ]
Xiong F. [1 ]
机构：
[1] Key Laboratory of Manufacturing Intelligent and Robotics of Shanghai, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai
[2] Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2018年 / 39卷 / 08期
关键词：
Greenhouse environment; LED heat dissipation; Mathematical model of temperature distribution; Numerical simulation; Optical device;
D O I：
10.3788/fgxb20183908.1115
中图分类号：
学科分类号：
摘要：
A mathematic model of LED heatsinks in greenhouses was established by the condition that the heat conducted into the fin heat equals the total heat from the air convection and the condensation of wet air. The air physical parameters under the worst condition were obtained by the physical simulation model of the greenhouse environment established by experiment and simulation. After obtaining the specific air physical parameters, combined with the constructed mathematical model, the temperature values of the key nodes of a 150 W plant growth LED lamp's heatsink suspended at the height of 2.5 m in the middle of the greenhouse were calculated in the worst case. The correctness of the model was verified by experiment and simulation, the data show that the relative error is not more than 5%, thus this has a positive effect for the design of LED lamps' heatsink for greenhouse. © 2018, Science Press. All right reserved.
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页码：1115 / 1122
页数：7
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