热力学p-v-T教学实验设计  

Teaching Experimental Design of Thermodynamics p-v-T

作　　者：孙始财 谷林霖 SUN Shicai;GU Linlin(School of Civil Engineering and Architecture,Shandong University of Science and Technology,Qingdao 266590,Shandong,China)

机构地区：[1]山东科技大学土木工程与建筑学院,山东青岛266590

出　　处：《实验室研究与探索》2025年第4期1-4,共4页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(52074165);山东科技大学研究生教改项目(Yzlts2022063,Yzlts2021064);研究生教育质量提升计划项目和导师指导能力提升项目(KDYC18004)。

摘　　要：随着创新教育理念的不断深入,高校教学实验改革日益重视对学生创新思维的培养。设计了一个热力学p-v-T教学实验,所用实验仪器均来自相关科研设备,实现了设备的高效利用。通过逐步升温法测得不同孔隙内甲烷水合物相平衡温度和压力,突破了传统相平衡实验一轮一点的局限性。提出了对实验数据进行深度挖掘的多样化处理思路,反演获得甲烷水合物分解焓、毛细管压力和孔隙尺寸,并推测得到孔隙内甲烷水合物生成和分解顺序及分布。实践结果表明,学生愿意参与这种具有探索性和挑战性的实验,能够比较准确地描述相平衡条件,并利用理论方程分析实验现象。As the concept of innovative education is deepened,the reform of teaching experiment in universities is placed by more emphasis on cultivating innovative thinking of students.A teaching experiment for thermodynamic p-v-T is designed.The experimental instruments used are taken from the related scientific research equipment,which realizes the efficient utilization of equipment.The phase equilibrium temperature and pressure of methane hydrate in different pores can be measured by stepwise warming method,which breaks through the limitation of one data point per experiment in traditional phase equilibrium experiment.Various data processing ideas are proposed to deeply analyze experimental data.Hydrate dissociation enthalpy,capillary pressure and pore size can be obtained by inversion to predict the hydrate formation/dissociation sequence and hydrate distribution in pores.The practical results show that students are willing to participate in such exploratory and challenging experiments,and are able to accurately describe the phase equilibrium conditions and analyze the experimental phenomena by using theoretical equations,with significant gains in basic theory and exploratory experiment.

关 键 词：甲烷水合物 相平衡 相变焓 毛细管压力 孔隙直径 教学实验 

分 类 号：C45[社会学]