Results 41 to 50 of about 211,478 (216)
Heat Transfer Enhancement with Nanofluids – A Review
JOURNAL OF MECHANICAL ENGINEERING AND SCIENCES, 2013 This paper presents a review of the studies undertaken on convection heat transfer with nanofluids. Initial studies were directed towards the determination of the properties of nanofluids, especially their thermal conductivity and viscosity. The studies indicate that thermal conductivity and viscosity increase with an increase in the concentration of ...
A.M. Hussein +3 more
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Energies, 2016 A two-dimensional, single-phase, isothermal, multicomponent, transient model is built to investigate the transport phenomena in unitized regenerative fuel cells (URFCs) under the condition of switching from the fuel cell (FC) mode to the water ...
Lulu Wang +3 more
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Case Studies in Thermal Engineering, 2021 Bus rides have become a routine choice for the large population to travel in Beijing. By the end of November 2020, 82.84% of all buses in Beijing had switched to electric vehicles.
Xinxin Zhang +3 more
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Heat transfer enhancement by Görtler instability
International Journal of Heat and Fluid Flow, 2002 Abstract Measurements of mean velocity field and mean temperature field were performed in a concave boundary layer. The growth of the induced Gortler vortices embedded in this boundary layer has been determined in two ways by a criterion based equally on spanwise distortion of velocity or temperature profile.
Toe, R, Ajakh, A, Peerhossaini, H
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What can Beijing learn from the world megacities on energy and environmental issues?
Energy Reports, 2022 In order to build Beijing into a world-class harmonious and livable capital city, its energy and environmental issues deserve special attention. Considering London’s experience and achievements in tackling smog crisis, New York’s world-class city ...
Xinxin Zhang +3 more
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EnergiesBased on the single-screw compressor (SSC) structure, a new type of composite slide valve (CSV) has been proposed and designed, featuring internal volume ratios of 2.8, 3.9, and 5.6 and operating under a partial load of 35%.
Shanwei Liu +5 more
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Working Fluid Selection for Organic Rankine Cycle Using Single-Screw Expander
Energies, 2019 The organic Rankine cycle (ORC) is a popular technology used in waste heat recovery and medium-low-temperature heat utilization. Working fluid plays a very important role in ORC.
Xinxin Zhang +5 more
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Energy-saving renovation of old urban buildings: A case study of Beijing
Case Studies in Thermal Engineering, 2021 Energy saving and environmental protection have become the core development concept of China construction industry. There are still a large number of old urban buildings in Beijing, whose energy consumption far exceeds the current building energy ...
Xinxin Zhang +3 more
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HEAT TRANSFER ENHANCEMENT IN PHASE-CHANGE HEAT EXCHANGERS
Aviation, 2014 The paper presents the results of boiling heat transfer enhancement due to the application of additional mesh on the heat exchanger surface. The copper mesh of porosity of 75% was sintered to the copper heater producing strong bonds between the elements.
Chatys, Rafał +2 more
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An enhanced nodal gradient finite element for non-linear heat transfer analysis [PDF]
, 2019 The present work is devoted to the analysis of non-linear heat transfer problems using the recent development of consective-interpolation procedure. Approximation of temperature is enhanced by taking into account both the nodal values and their averaged ...
Nguyen, Minh Ngoc +2 more
core +1 more source