Results 11 to 20 of about 211,478 (216)

Study on Chemical Kinetics Mechanism of Ignition Characteristics of Dimethyl Ether Blended with Small Molecular Alkanes

open access: yesEnergies, 2022
Dimethyl ether (DME)/C1-C4 alkane mixtures are ideal fuel for homogeneous charge compression ignition (HCCI) engines. The comparison of ignition delay and multi-stage ignition for DME/C1-C4 alkane mixtures can provide theoretical guidance for expanding ...
Kai Niu   +5 more
doaj   +1 more source

A review of imidazolium ionic liquid-based phase change materials for low and medium temperatures thermal energy storage and their applications

open access: yesGreen Energy and Resources, 2023
The application of ionic liquids (ILs) in the field of thermal energy storage is attracting increasing attention owing to their thermophysical properties, such as an adjustable phase change temperature, low flammability/volatility, and good thermal and ...
Qi Li   +6 more
doaj   +1 more source

Impact of COVID-19 pandemic on energy consumption and carbon dioxide emissions in China's transportation sector

open access: yesCase Studies in Thermal Engineering, 2021
The COVID-19 pandemic has put the whole world in a great lockdown and greatly changed our lives. The lockdown caused by the COVID-19 pandemic has greatly affected the transportation industry in China.
Xinxin Zhang, Zhenlei Li, Jingfu Wang
doaj   +1 more source

Isothermal Performance of Heat Pipes: A Review

open access: yesEnergies, 2022
Heat pipes transfer heat via phase transformation of the working fluid, where the working fluid will keep the temperature constant and absorb or release a large amount of latent heat during phase transformation.
Hongzhe Zhang   +3 more
doaj   +1 more source

Sodium-Potassium Alloy Heat Pipe under Geyser Boiling Experimental Study: Heat Transfer Analysis

open access: yesEnergies, 2021
In the geyser boiling mode, the working fluid state is divided into a boiling process and a quiet process, and the sodium-potassium (Na-K) alloy heat pipe can discontinuously transfer heat at each boiling.
Hongzhe Zhang   +3 more
doaj   +1 more source

Effects of Heating Temperature on the Isothermal Performance of a Potassium Concentric Annular Heat Pipe

open access: yesEnergies, 2022
For high-precision thermocouple calibration, the uniformity of the temperature field provided by the metal temperature equalizing block is low, and the structure of the gas-controlled heat pipe is complex. In order to improve the thermocouple calibration
Hongzhe Zhang   +3 more
doaj   +1 more source

HEAT TRANSFER ENHANCEMENT IN LAMINAR CONVECTIVE HEAT TRANSFER WITH NANOFLUIDS

open access: yesProceeding of TMNN-2011. Proceedings of the International Symposium on Thermal and Materials Nanoscience and Nanotechnology - 29 May - 3 June , 2011, Antalya, Turkey, 2011
In order to utilize nanofluids in practical applications, accurate prediction of forced convection heat transfer of nanofluids is necessary. In the first part of the present study, we consider the application of some classical correlations of forced convection heat transfer developed for the flow of pure fluids to the case of nanofluids by the use of ...
Ozerinc, S.   +2 more
openaire   +3 more sources

The augmentation of internal tip heat transfer in gas turbine blades using a pair of delta-winglet vortex generators

open access: yes, 2021
A novel method to enhance the heat transfer on the internal tip surface of gas turbine blades was developed. Effects of delta-winglet vortex generators (DWVG) and their angle of attack on the vortical structures and mechanism of enhanced heat transfer ...
Wang, Zhongqi,   +6 more
core   +1 more source

Acoustically enhanced boiling heat transfer [PDF]

open access: yes2007 13th International Workshop on Thermal Investigation of ICs and Systems (THERMINIC), 2007
An acoustic field is used to increase the critical heat flux (CHF) of a flat-boiling-heat-transfer surface. The increase is a result of the acoustic effects on the vapor bubbles. Experiments are performed to explore the effects of an acoustic field on vapor bubbles in the vicinity of a rigid-heated wall. Work includes the construction of a novel heater
Douglas, Z. W., Smith, M. K., Glezer, A.
openaire   +3 more sources

Statistical data-based prediction of carbon dioxide emission factors of China's power generation at carbon peak in 2030

open access: yesCase Studies in Thermal Engineering, 2023
China has promised to reach its peak carbon dioxide emissions by 2030. Power generation emits the most carbon dioxide in China. Fossil fuels are currently still the largest sources of energy for electricity generation in China.
Xinxin Zhang, Kaili Xu
doaj   +1 more source

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