Temperature Sensitive Material for the Desiccant Dehumidification System
Abstract
To minimize the energy consumption of an air-conditioning sub-system, we synthesized temperature sensitive hydrogel with temperature non-sensitive silicon gel. After changing the synthesis polymer ratio between the poly N-isopropylacrylamide hydrogel and the porous silica gel, the characterization of the synthesized polymer was obtained. The temperature sensitivity for different ratios of the synthesized gel polymer was made through solution polymerization. The polymer yield, water absorption, and the water discharge rate were observed using a differential thermal graph. This graph provided the details of the temperature response of water molecules. These gels were placed on glass paper soaked with acid for dehumidification system. The characterization of the temperature sensitive response for the synthesized hydrogel silica polymer was compared with the pure silica gel. Then, we put forward the concept of critical temperatures for the synthesized polymer and discovered that it had similar physical meanings of lower critical solution temperatures of the pure hydrogel. Based on this new finding, we were able to use the synthesized polymer to modify the desiccant dehumidification system. As a result, we reduced the cost and improved performance by using the optimized synthesizing ratio.
Keywords
N-isopropylacrylamide, Temperature sensitivity, Water absorption rate, Silica gel, Dehumidification Dessicant.
DOI
10.12783/dtmse/amst2016/11332
10.12783/dtmse/amst2016/11332
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