Development of Microclimate Control Room using IoT System for Atmospheric Water Harvesting Research
doi: 10.14456/mijet.2022.42
Keywords:
Microclimate control room, IoT system, Atmospheric water harvesting, Computational fluid dynamicsAbstract
For testing the entire system of atmospheric water harvesting (AWH), large microclimate control room was required to provide the stable climate conditions. The objective of this work was to develop an innovative microclimate control room using IoT system to provide the realistic and stable situation for AWH research. A room with dimensions of 2.5 × 4.5 × 3 m (W × L × H) was selected. Main controller units were used to collect data from a group of temperature and relative humidity sensors and to control microclimate through the operating devices, i.e. air conditioner, heaters, humidifier and dehumidifier. Modes of the control can be selected as offline control by the control panel or online control by the IoT platform. Flow and temperature distribution were assessed by computational fluid dynamics. The desired conditions at temperature and relative humidity between 20-45 oC and 40-80%, respectively, can be maintained by the control system with high stability. The alignment of the operating devices allowed homogeneous temperature distribution. Flow distribution can be adjusted by the air guide vane of the air conditioner to provide proper conditions for different AHW types.
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