Solar Interfacial Evaporation Properties of Carbon Nanotube Polyvinyl Alcohol Composite Surface
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Data of research article title of "Solar Interfacial Evaporation Properties of Carbon Nanotube Polyvinyl Alcohol Composite Surface".
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The leading equipment includes a solar simulator (Solar-500, Beijing Newbit Technology Co., Ltd., China) for simulating sunlight, an irradiation meter (GEL-NP2000-2A, Beijing Zhongjiao Jinyuan Technology Co., Ltd, China), accuracy of 0.01mW∙cm-2, for measuring the intensity of sunlight radiation, electronic analytical balance (G&G JJ1023BF, Changshu Shuangjie Testing Instrument Factory, China), accuracy of 0.001g, for recording the mass changes during the experiment, a data acquisition unit (National Instruments, Austin, TX, USA) for measuring the real-time temperature and recording on the computer. Solar interfacial evaporation was performed in experiments at room temperature of 25°C and ambient relative humidity of 60%. The solar radiation intensity of composite surfaces is 1kW∙m-2 because of the daily maximum solar radiation is about 1kW∙m-2 and most scholars also mainly study the evaporation performance when the solar radiation intensity is 1kW∙m-2. The experimental steps were as follows: (1) The solar simulator was turned on and adjusted the radiation intensity of the light source to 1kW∙m-2 using an irradiation meter. (2) The evaporator was surrounded using a 2cm thick polyethylene foam for insulation. (3) Placed the thermocouples on the temperature measurement points of the evaporator and put the evaporator into the beaker with 200ml, 25°C deionized water. (4) Placed the beaker on the electronic analytical balance under the light source. The thermocouples signal was collected in real-time during the experiment using a data acquisition instrument, and the beaker quality changes was recorded by an electronic analytical balance every 5 minutes interval.