基于实验室朗肯循环装置的实验研究

Experimental Research Based on Rankine Cycle Lab-Equipment

朗肯循环是工程热力学课程最基本且最重要的动力循环。该文通过实验室朗肯循环装置对朗肯循环进行了实验研究,测定不同排汽压力下的循环热效率、涡轮相对内效率、循环摩擦损失等参数。实验结果表明,实验室朗肯循环装置能够模拟朗肯循环的基本热力过程,但是热效率较低、摩擦损失较大。论文对实验结果进行了分析,循环热效率低的主要原因是涡轮摩擦损失大、主蒸汽参数低,同时提出了改进实验室朗肯循环装置的措施。实验室朗肯循环将热力学理论与实验结合,有助于学生理解和分析热力学基本理论,提高实验动手操作能力,提高分析和解决实际问题的能力。同时将自主实验和创新实验融入到实验教学中,激发了学生的学习热情和基础科研能力,为创新性实验教学提供了借鉴。

Rankine Cycle is the most fundamental and important power cycle in Engineering Thermodynamics.This paper conducted Rankine Cycle experiments with Rankine Cycle Lab-Equipment,and measured thermal efficiency,turbine relative internal efficiency,cycle friction loss and other parameters.Results showed that Rankine Cycle Lab-Equipment can simulate the basic thermal processes of Rankine Cycle,but with relatively low thermal efficiency and huge cycle friction loss.The main reasons for low thermal efficiency were huge friction loss of steam turbine and low main-steam parameters.Measures to improve Rankine Cycle Lab-Equipment were proposed according to experimental results and analysis.Laboratory Rankine Cycle combined Thermodynamic theory with experiment to help students understand and analyze the fundamental theory of Thermodynamics,improve their hands-on ability to conduct experiments and problem-solving capability.At the same time,independent and innovative experiments were integrated into experimental teaching,which stimulated students’learning enthusiasm and basic scientific research ability,and provided reference for innovative experimental teaching.