Pandiselvam Ravi, Chandrasekar Veerapandian, Thirupathi Venkatachalam
Physiology, Biochemistry and Post Harvest Technology Division, ICAR - Central Plantation Crops Research Institute, Kasaragod, Kerala, India.
Food and Agricultural Process Engineering, ICAR - Central Institute of Post Harvest Engineering and Technology, Ludhiana, Punjab, India.
Pest Manag Sci. 2017 Aug;73(8):1698-1702. doi: 10.1002/ps.4516. Epub 2017 Feb 3.
Ozone has shown the potential to control stored product insect pests. The high reactivity of ozone leads to special problems when it passes though an organic medium such as stored grains. Thus, there is a need for a simulation study to understand the concentration profile and flow characteristics of ozone in stored paddy bulks as a function of time.
Simulation of ozone concentration through the paddy grain bulks was explained by applying the principle of the law of conservation along with a continuity equation. A higher ozone concentration value was observed at regions near the ozone diffuser whereas a lower concentration value was observed at regions away from the ozone diffuser. The relative error between the experimental and predicted ozone concentration values for the entire bin geometry was less than 42.8%.
The simulation model described a non-linear change of ozone concentration in stored paddy bulks. Results of this study provide a valuable source for estimating the parameters needed for effectively designing a storage bin for fumigation of paddy grains in a commercial scale continuous-flow ozone fumigation system. © 2017 Society of Chemical Industry.
臭氧已显示出控制储粮害虫的潜力。当臭氧穿过诸如储存谷物等有机介质时，其高反应性会导致特殊问题。因此，需要进行模拟研究，以了解臭氧在储存稻谷堆中的浓度分布和流动特性随时间的变化情况。
通过应用守恒定律原理和连续性方程，对臭氧在稻谷堆中的浓度模拟进行了解释。在靠近臭氧扩散器的区域观察到较高的臭氧浓度值，而在远离臭氧扩散器的区域观察到较低的浓度值。整个仓体几何形状的实验和预测臭氧浓度值之间的相对误差小于42.8%。
该模拟模型描述了储存稻谷堆中臭氧浓度的非线性变化。本研究结果为估算在商业规模连续流臭氧熏蒸系统中有效设计稻谷熏蒸储存仓所需的参数提供了有价值的依据。© 2017化学工业协会。
