Small Equipment: Infrared Thermography System for Temperature Measurements in Microchannel/Minichannel and Droplet

0853832 Kumar将采购一种红外热成像系统，其特征是一个（3至5微米）红外摄像机，一个50 mm透镜，从-10 ℃至350 ℃的热成像校准，以及一个4倍显微镜套件，能够对50至100微米的物体成像。该设备包括同步模拟和数字视频和同步能力，以及温度灵敏度和光斑尺寸分别为0.02 ℃和10微米。该系统将被用来调查运输现象（a）燃料电池，（B）生物燃料液滴蒸发，和（c）流动沸腾。智力优势：热成像系统将被用来解决微通道和小通道内的温度分布，并在微液滴的空间和时间。该设备将与现有的速度测量仪器（微型PIV）和物质测量仪器（可调谐二极管激光吸收光谱和激光诱导荧光）一起使用。由此产生的实验数据将有助于解开与这些复杂的两相系统相关的复杂物理机制，并验证全球正在开发的模型。更广泛的影响：将开发课程，课程和研讨会，以教育学生和专业人员在红外热成像和激光诊断领域应用于燃料电池，生物燃料和电子封装冷却等领域。本科生将在实验设计和先进的测量策略的关键领域进行培训，无论是在高级设计项目还是现有NSF REU计划的研究模块。新的夏季REU项目将包括红外相机。通过荣誉论文计划，本科生将接触到激光诊断和红外热成像。这些活动将激发当前和未来学生对工程的兴趣，包括来自代表性不足群体的学生。

0853832KumarAn infrared thermography system will be procured that features a (3 to 5 micron) infrared camera, a 50 mm lens, thermographic calibration from -10 C to 350 C, and a 4x microscope kit, capable of imaging 50 to 100 micron objects. The equipment includes simultaneous analog and digital video and synchronization capabilities, and a temperature sensitivity and spot size of 0.02 C and 10 microns, respectively. The system will be used to investigate transport phenomena in (a) fuel cells, (b) biofuel droplet evaporation, and (c) flow boiling. Intellectual Merit: The thermography system will be employed to spatially and temporally resolve temperature distributions within microchannels and minichannels, and on microdroplets. The equipment will be used in conjunction with existing velocity measurement instrumentation (micro PIV) and species measurement instrumentation (tunable diode laser absorption spectroscopy and laser induced fluorescence). The resulting experimental data will serve to unravel the complicated physical mechanisms associated with these complex, two phase systems, and validate models that are being developed worldwide. Broader Impact: Courses, curriculum and workshops will be developed to educate students and professionals in the fields of IR thermography and laser diagnostics as applied to areas such as fuel cells, biofuels and cooling of electronic packages. Undergraduate students will be trained in the critical areas of experimental design and advanced measurement strategies, both in senior design projects and with research modules for an existing NSF REU program. New summer REU projects will incorporate the IR camera. Through the Honors Thesis program, undergraduate students will be exposed to laser diagnostics and IR thermography. These activities will pique interest in engineering among current and prospective students, including students from underrepresented groups.