Articles
Feasibility of a water-cooled LED system for climate uniformity in indoor plant factory using numerical analysis
Article number
1423_16
Pages
121 – 128
Language
English
Abstract
This study aims to investigate the feasibility of a water-cooled LED system for regulating heat dissipation to the surrounding environment.
Based on computational fluid dynamics (CFD) analysis, the thermal environment of crop canopies with a water-cooled LED system was simulated, and the results were compared with natural convection cooling conditions.
In the CFD analysis, the climate in the indoor plant factory was simulated under steady-conditions, and a multi-component Eulerian incompressible method was applied to calculate the moist air consisting of air and water vapor.
Lettuce was assumed to be the cultivated crop and was set as porous media, with evaporative cooling and water vapor transfer applied through the transpiration model.
As a result, the water-cooled LED system significantly reduced the amount of heat dissipated from the LEDs to the environment.
Additionally, the uniformity of temperature and humidity distribution in the growth area was increased.
For further research, the energy-saving effect of the water-cooled LED system will be conducted.
Based on computational fluid dynamics (CFD) analysis, the thermal environment of crop canopies with a water-cooled LED system was simulated, and the results were compared with natural convection cooling conditions.
In the CFD analysis, the climate in the indoor plant factory was simulated under steady-conditions, and a multi-component Eulerian incompressible method was applied to calculate the moist air consisting of air and water vapor.
Lettuce was assumed to be the cultivated crop and was set as porous media, with evaporative cooling and water vapor transfer applied through the transpiration model.
As a result, the water-cooled LED system significantly reduced the amount of heat dissipated from the LEDs to the environment.
Additionally, the uniformity of temperature and humidity distribution in the growth area was increased.
For further research, the energy-saving effect of the water-cooled LED system will be conducted.
Authors
D. Lee, E.-J. Choi, S.-M. Lee, W. Oh
Keywords
indoor plant factory, climate uniformity, transpiration, natural convection cooling, water-cooled LED, computational fluid dynamics (CFD)
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