基于热流片的冰的导热系数测量  

Measurement of Ice Thermal Conductivity Based on Heat Flow Sensor

作　　者：何林珈 王润松 叶炜豪 高思岚 李健豪 杨初平 HE Linjia;WANG Runsong;YE Weihao;GAO Silan;LI Jianhao;YANG Chuping(College of Electronic Engineering,South China Agricultural University,Guangzhou 510640,China)

机构地区：[1]华南农业大学电子工程学院,广东广州510640

出　　处：《大学物理实验》2023年第4期1-5,共5页Physical Experiment of College

基　　金：华南农业大学质量工程项目(zlgc2022);国家自然科学基金项目(12104165)。

摘　　要：设计了基于稳态法导热系数测量原理并结合热流片测量冰的导热系数的实验装置,对冰的导热系数进行测量。该实验装置采用的冰块尺寸(长×宽×高)为13 cm×8 cm×1.5 cm,冰块初始温度为0℃,以4℃的冰水混合物作为稳定的供热端,通过半导体制冷器获得-7℃的稳定冷端,采用热流片测量冰块中传导的热量,采用温差电偶测量温度差。测量的冰块导热系数基本稳定在2.00 W·m^(-1)·K^(-1)附近,与已有关于冰的导热系数的实验结果较为接近,可以为冰导热系数的测量提供新的思路。Based on the principle of steady-state thermal conductivity measurement,an experimental device for measuring the thermal conductivity of ice with heat flow sensor is designed to measure the thermal conductivity of ice.The size of ice used in the experimental device is 13 cm×8 cm×1.5 cm(L×W×H),the initial temperature of the ice is 0℃,the ice-water mixture of 4℃is used as the stable heat supply end,and the stable cold end of-7℃is obtained with the semiconductor cooler.The conducted heat through the ice is measured by the heat flow sensor,and the temperature difference is measured by the thermocouple.In this experimental device,the measured thermal conductivity of ice is basically stable around 2.00,which is close to the existing experimental results on the thermal conductivity of ice.

关 键 词：稳态法 冰的导热系数 热流片 热电偶 

分 类 号：O469[理学—凝聚态物理]