摘要
This study investigates the characteristics of transparent light in a greenhouse using different Building Integrated Photovoltaic (BIPV) modules (crystalline light-through module, colorful module, and see-through module) to evaluate the ideal spectrum and illuminance distributions for plant growth. This study creates an IES-CPC model for a greenhouse in Taiwan, and performs a series of simulations to determine the average illuminance values and the uniformity ratios under various transparencies of light-guide plates installed in the greenhouse. Simulated results show that the average illuminance values increase as the transparencies of the light-guide plates increase; however, the uniformity decreases. Spectrum measurement experiments are also executed at different modules. Experiment results show the peak illuminance ranges of transparent light are 550-600, 600-700, and 480-600 nm for the crystalline light-through module, colorful module, and see-through module of BIPV modules, respectively. The appropriate selection of BIPV modules yields transparent light with a wavelength distribution that is good for plant growth in a greenhouse.
- 出版日期2012-12