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2篇 您的检索式:作者名="FENG Daili"
    题名 作者 年代 出处 被引量
1Superior Latent Heat Eutectic Salt Na_(2)CO_(3)-Li_(2)CO_(3)-LiF for Thermal Energy Storage:Preparation and Performance Investigation显示文摘In this paper,a novel ternary eutectic salt Na_(2)CO_(3)-Li_(2)CO_(3)-LiF was designed and investigated for concentrated solar power(CSP).The FactSage software was used to predict the composition and eutectic point of Na_(2)CO_(3)-Li_(2)CO_(3)-LiF.The microstructure,thermophysical properties,and thermal stability of eutectic salts were experimentally measured using various analytical methods.With a mass ratio of 57%:32%:11%,the eutectic salt exhibited excellent thermal storage properties with a fusion enthalpy of 413 J/g and a melting point of 426.8℃.The excellent thermal stability of the eutectic salt was reflected by a weight loss of only 0.8% at 600℃.LI Weiwei MIAO Qi ZHANG Yelong DING Hongliang YANG Sa LAI Yuan FENG Daili DING Yulong JIN Yi TAN Linghua 2024Journal of Thermal Science2024,33,2:0
2Measuring Thermal Conductivity of an Individual Carbon Nanotube Using Raman Spectroscopy显示文摘In this paper,a non-contact method based on Raman spectroscopy was used to measure the thermal conductivity of an individual single-walled carbon nanotube(SWCNT)and a multi-walled carbon nanotube(MWCNT).The effect of laser-induced heating on carbon nanotubes(CNTs)was considered.The local temperatures along the longitudinal direction of carbon nanotube were determined by Raman shift,combined with one-dimensional heat conduction model,and the thermal conductivity was finally obtained.The thermal conductivity of the SWCNT with a length of 25μm and a diameter of 1.34 nm decreases as the temperature increases in the measuring temperature range(316 K–378 K).The corresponding thermal conductivities change from 1651 W/(m·K)to 2423 W/(m·K);the thermal conductivities of the MWCNT with 40μm length and 9.2 nm diameter are within 1109–1700 W/(m·K)at 316 K–445 K.To further analyze the size effect on the thermal conductivity,molecular dynamics simulation has been carried out.The result shows that the thermal conductivity of an individual carbon nanotube increases with increasing nanotube length and eventually converges.This work is expected to provide some reference data for the studies of thermal properties of individual CNTs.LI Pei FENG Daili FENG Yanhui LIU Xiaofang XIONG Mengya ZHANG Xinxin LIU Jinhui 2022Journal of Thermal Science2022,31,4:0
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