Pinwei Liu

Experimental investigations on charging-discharging performance of paraffin in a vertical multi-tube latent heat thermal energy storage system

Songzhen Tang, Dongliang Zhang, Pinwei Liu, Ming Guo et autres

cn (code pays fourni par la source)

Solidification performance enhancement of a latent heat thermal energy storage system: A novel discontinuous fin configuration for vertical shell-and-tube design

Songzhen Tang, Pinwei Liu, Yuling Song, Huan Xi et autres

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Experimental study on discharging characteristics of thermal energy storage system with discontinuous fins

Songzhen Tang, Pinwei Liu, Yuling Song, Xuehong Wu et autres

Efficient thermal storage technologies are of vital importance for addressing the intermittent supply issue of renewable energy and the problem of industrial waste heat recovery. However, the application efficiency of traditional tubular thermal storage systems is limited due to their low heat …

Experimental study on melting performance and uniformity of thermal energy storage systems with discontinuous fins

Songzhen Tang, Yuling Song, Pinwei Liu, Xuehong Wu et autres

cn (code pays fourni par la source)

Design and optimization of a vertical shell-and-tube latent heat thermal energy storage system via discontinuous fins

Songzhen Tang, Yuling Song, Pinwei Liu, Xuehong Wu et autres

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Experimental study and numerical simulation of the kinetic energy recovery of the mine’s exhaust gas

Yefeng Jiang, Xiaochuan Li, Xiang Guo Wu, Li Wang et autres

In mines, the exhaust gas is mainly discharged from main ventilators in free dissipation state. The effective recovery of its kinetic energy is lucrative from economical and technical standpoints. This study is focused on recovering the kinetic energy of the exhaust gas …

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Broadband near-infrared TiO2 dielectric metamaterial absorbers

Yanhong Zhu, Tian Lan, Pinwei Liu, Jiaqi Yang

Metamaterial absorbers (MAs) have drawn increasing attention due to their prospects in many fields such as sensing, thermal emission, solar energy harvesting, etc. However, it remains challenging to realize broadband MAs with a simple structure. Here, we propose a broadband, polarization-insensitive, and …

cn (code pays fourni par la source)

Broadband TiO2 dielectric metamaterial absorber

Pinwei Liu, Tian Lan, Xiaomei Chen

In this paper, we demonstrate a broadband, polarization-insensitive, and omnidirectional metamaterial absorber which is relatively easy to fabricate. This device exhibits absorption above 90% in the wavelength range from 639 nm to 1339 nm.

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Polarization-insensitive, high numerical aperture metalens with nanoholes and surface corrugations

Yiwen Jia, Tian Lan, Pinwei Liu, Zhigao Li

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Single particle aerosol mass spectrometry of coal combustion particles associated with high lung cancer rates in Xuanwei and Fuyuan, China

Senlin Lü, Zhengying Tan, Pinwei Liu, Hui Zhao et autres

cn, hk, jp (code pays fourni par la source)

Wide-angle, polarization-insensitive, and broadband metamaterial absorber based on multilayered metal–dielectric structures

Pinwei Liu, Tian Lan

A wide-angle, polarization-insensitive, and broadband metamaterial absorber (MA) based on multilayered metal-dielectric structures was designed and investigated using the finite-difference time-domain solution. The device exhibited polarization-insensitive absorption in the 475-592 nm range, with the absorption higher than 95%. At the same time, …

cn (code pays fourni par la source)

Distribution of PAHs in Size-resolved Particles Emitted from Xuanwei C1 Coal Combustion and Their Health Risk Assessment

Zhang Rongchi, Xiaojie Hao, Wenchao Zhang, Pinwei Liu et autres

宣威煤燃烧排放产物与其所导致的肺癌高发率一直是国际学术界关注的热点,但煤燃烧排放颗粒物中的关键致毒组分还不清楚.以肺癌高发区产出的晚二叠世C1煤燃烧排放不同粒径颗粒物为研究对象,分析其中主要有害有机污染物多环芳烃(PAHs)的分布特征及其健康风险.结果表明宣威煤燃烧排放的颗粒物中16种PAHs的总质量浓度为77 359.21 ng·m-3,其中含量最高的是苯并(g,h,i)苝,其他主要的PAHs依此为:屈、苯并(b)荧蒽、苯并(a)蒽、荧蒽、二苯并(a,h)蒽、菲、苯并(k)荧蒽、茚并(1,2,3-cd)芘;强致癌化合物苯并a芘(BaP)总浓度亦可达到10 060.13 ng·m-3;这些有害有机物主要分布在细颗粒物中;不同粒径颗粒物的毒性当量存在明显差异,细颗粒的毒性当量占可吸入颗粒物中PAHs总毒性当量的87.4％,远高于粗颗粒(12％)和超细颗粒物(04％)的毒性当量.