Author
Changwei Pang
Bio: Changwei Pang is an academic researcher from Kyung Hee University. The author has contributed to research in topics: Nanofluid & Thermal conductivity. The author has an hindex of 7, co-authored 7 publications receiving 448 citations.
Papers
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TL;DR: In this article, the thermal conductivity of methanol-based nanofluids with Al 2 O 3 and SiO 2 nanoparticles was measured using an ultrasonic equipment.
183 citations
TL;DR: In this article, a review of the previous literature on mass transfer enhancement in nanofluids is presented, and the authors suggest that future research on combined heat and mass transfer needs to focus on five main directions.
175 citations
TL;DR: In this article, mono silver nanoparticles were used to prepare binary nanofluids (NH 3 /H 2 O binary mixture with Ag nanoparticles) for application in a bubble absorber.
Abstract: In this study, mono silver (Ag) nanoparticles are used to prepare binary nanofluids (NH 3 /H 2 O binary mixture with Ag nanoparticles) for application of NH 3 /H 2 O absorption in a bubble absorber. The measurements uncertainty in repeatability of absorption rate is yielded within 2.80%. The NH 3 /H 2 O bubble absorption experiments are carried out in two cases, with or without the coolant (water). The results show that the mass transfer in binary nanofluids with the coolant is enhanced more than that without the coolant. With the coolant, the highest absorption rate enhancement is observed to be 55% at 0.02 wt% Ag nanoparticles. In addition, the mass transfer enhancement by the binary nanofluids is discussed in detail.
63 citations
TL;DR: In this article, a new mathematic model for heat conduction of nanofluid is developed based on the experimental findings and the maximum deviation is obtained to be 1.52% for SiO 2 nano-fluid.
60 citations
TL;DR: In this paper, the methanol (CH3OH)-based Al2O3 nanofluids are prepared for application of the CO2 removal system and the suspension stability and thermal characterizations are estimated by the Tyndall effect and by measuring the thermal conductivity of the nanoflids.
26 citations
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TL;DR: In this paper, the preparation of metal and metal oxides nanofluids and hybrid or composite nano-fluids is discussed, and various techniques used to study the physical and chemical characteristics of nanof-luids are presented.
Abstract: Selection of suitable heat transfer fluid for heat dissipation is an important consideration in the design of heat exchanging systems. Nanofluid, a colloidal mixture made of a base fluid and a nanoparticle, is a new generation of heat transfer fluids becoming a high potential fluid in heat transfer applications due to enhanced thermal conductivity. Research studies about nanofluids are on the rise owing to the mounting interest and demand for nanofluids as heat transfer fluids in a wide variety of applications. Recently, nanofluid technology has a new dimension of impregnating two or more nanoparticles in base fluids, namely hybrid or composite nanofluids. This paper reviews the preparation of metal and metal oxides nanofluids and hybrid nanofluids and the various techniques used to study the physical and chemical characteristics of nanofluids. Thermo-physical and heat transfer properties of nanofluids including the improved thermal conductivity, viscosity and specific heat models for nanofluids are presented. Finally, various application areas of nanofluids, such as transportation, electronic cooling, energy storage, mechanical applications etc. are discussed.
462 citations
TL;DR: The preparation of nanofluids by various techniques, methods of stabilization, stability measurement techniques, thermal conductivity and heat capacity studies, proposed mechanisms of heat transport, theoretical models on thermal Conductivity, factors influencing k and the effect of nanoinclusions in PCM are discussed in this review.
341 citations
TL;DR: In this paper, a review of recent advances in the measurement and modeling of thermophysical properties at the nanoscale (from the solid state to colloids) is presented, including thermal conductivity, dynamic viscosity, specific heat capacity, and density.
322 citations
TL;DR: In this paper, the authors summarized the literature from most recent articles on nanoparticles as a liquid fuel additive and discussed the effect of dispersion of several nanoparticles on the enhancement in the performance characteristics and reduction in emission of a CI engine fuelled with diesel-biodiesel blends.
311 citations
TL;DR: In this paper, a review of different aspects of nanofluid stability starting from the preparation stage till implementation in practical applications is presented, focusing on the stability as a function of operating conditions such as high temperature, pressure, confinement, composition, salinity, external magnetic field and shear rate.
266 citations