二氧化碳工质的低温热源郎肯循环发电系统研究

发布时间：2018-05-06 08:51

本文选题：二氧化碳工质 + 郎肯循环　；参考：《上海交通大学》2014年硕士论文

【摘要】：本课题主要包括了对二氧化碳工质在传热过程中的性质,尤其是超临界状态下二氧化碳工质性质的研究,以及对二氧化碳工质郎肯循环的发电系统研究。本课题所使用的概念性热源可以是任何低温热源,并对根据这一概念所建立的实验系统进行了实验测试,将所得到的实验结果进行深入分析和研究,以验证该系统在发电领域中的可行性和应用前景。依据实验结果和分析来看,该系统的可行性得到了相当可靠的验证,并且显示出未来大规模应用的良好潜力和改良方向。然而,由于实际实验台的某些相关部件,如膨胀机和泵机等部件无法在较高温度和压强的工况下稳定工作,本实验台具有一定的局限性,测试所得的结果仅限温度为80摄氏度的输入热源所得。因此,为了更深入研究这一系统,本课题还使用Dymola软件建立了一个系统的仿真模型,经过优化设计和与实际系统进行比对拟合后,在该仿真模型中对实验工况进行了进一步的拓展,将输入热源温度由80摄氏度提升到150至200摄氏度,所得到的仿真计算结果更深入地揭示了该系统的应用前景和巨大潜力。
[Abstract]:This paper mainly includes the study on the properties of carbon dioxide working fluid in heat transfer process, especially in supercritical state, and the study on the generation system of the Ronkin cycle of carbon dioxide working fluid. The conceptual heat source used in this paper can be any low temperature heat source, and the experimental system established according to this concept has been tested, and the experimental results obtained have been deeply analyzed and studied. In order to verify the feasibility of the system in the field of power generation and application prospects. According to the experimental results and analysis, the feasibility of the system has been proved to be quite reliable, and it shows the good potential and improvement direction of large-scale application in the future. However, due to the fact that some relative parts of the actual test bench, such as expander and pump, can not work stably under higher temperature and pressure, the test bench has some limitations. The test results are limited to input heat sources with a temperature of 80 degrees Celsius. Therefore, in order to study the system more deeply, we also use Dymola software to establish a simulation model of the system. After optimizing design and comparing with the actual system, In the simulation model, the experimental conditions are further expanded to increase the input heat source temperature from 80 degrees Celsius to 150 to 200 degrees Celsius. The simulation results reveal the application prospect and great potential of the system.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM619

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