调制差示扫描量热法测定二元醇型冷却液的比热容
Specific heat of diol coolant determined by modulated differential scanning calorimetry
蒋晓煜 1雒焕婷 1洪瑞 1杜文静1
作者信息
- 1. 山东大学能源与动力工程学院,山东济南 250061
- 折叠
摘要
冷却液的选择对于高功率散热用液冷系统的性能起到关键作用.目前乙二醇型和丙二醇型冷却液应用最为广泛.利用差示扫描量热仪对不同冰点的二元醇型冷却液进行了限定温度区间的比热容的测量.利用调制差示扫描量热法(MDSC),通过傅里叶变换将产生的热流信号分解成热容成分和动力学成分,得到可逆比热容值,并将实验结果进行了二次多项式的曲线拟合.相关测试结果可为二元醇型冷却液的研究提供参考和借鉴.
Abstract
The choice of coolant plays a key role in the performance of liquid cooling systems for high power heat dissipation.At present,glycol and propylene glycol coolants are the most widely used.The specific heat capacity of diol coolant with different freezing points was measured by differential scanning calorimeter.By means of Fourier transform,the heat flow signal is decomposed into heat capacity components and kinetic components by modulated differential scanning calorimetry(MDSC),and the reversible specific heat value is obtained.The relevant test results provide an important reference for the research of diol coolant.
关键词
冷却液/比热容/MDSC/醇/预测/实验验证/混合物Key words
coolant/specific heat/modulated differential scanning calorimetry/alcohol/prediction/experimental validation/mixtures引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据