Z
Zhifeng Ren
Researcher at Texas Center for Superconductivity
Publications - 726
Citations - 84970
Zhifeng Ren is an academic researcher from Texas Center for Superconductivity. The author has contributed to research in topics: Thermoelectric effect & Thermoelectric materials. The author has an hindex of 122, co-authored 695 publications receiving 71212 citations. Previous affiliations of Zhifeng Ren include Massachusetts Institute of Technology & University of Cincinnati.
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Enhanced thermal conductivity and viscosity of copper nanoparticles in ethylene glycol nanofluid
Jivtesh Garg,Bed Poudel,Matteo Chiesa,J. B. Gordon,J. J. Ma,Jianbo Wang,Zhifeng Ren,Yong Tae Kang,Hiroko Ohtani,Jagjit Nanda,Gareth H. McKinley,Gang Chen +11 more
TL;DR: In this article, the authors investigated the thermal conductivity and viscosity of copper nanoparticles in ethylene glycol and found that the measured increase in thermal conductivities was twice the value predicted by the Maxwell effective medium theory.
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Relationship between thermoelectric figure of merit and energy conversion efficiency.
TL;DR: An engineering dimensionless figure of merit (ZT)eng and an engineering power factor (PF)eng are defined as functions of the temperature difference between the cold and hot sides to predict reliably and accurately the practical conversion efficiency and output power, respectively, overcoming the reporting of unrealistic efficiency using average ZT values.
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A review of cermet-based spectrally selective solar absorbers
TL;DR: In this article, the progress of cermet-based spectrally selective absorbers with high solar absorptance and low thermal emittance, such as Cr2O3, Al2O 3, AlN, SiO2, and ZrO2 based cermets as absorption layers, is reviewed.
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High thermoelectric cooling performance of n-type Mg 3 Bi 2 -based materials.
TL;DR: In this article, the authors reported n-type magnesium bismuthide (Mg3Bi2)-based materials with a peak figure of merit (ZT) of 0.9 at 350 kelvin.
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Dropwise condensation on superhydrophobic surfaces with two-tier roughness
TL;DR: In this paper, the authors reported continuous dropwise condensation on a superhydrophobic surface with short carbon nanotubes deposited on micromachined posts, a two-tier texture mimicking lotus leaves.