Results 11 to 20 of about 657,721 (268)

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

Advances in High-Temperature Molten Salt-Based Carbon Nanofluid Research

open access: yesEnergies, 2023
Molten salt is an excellent medium for heat transfer and storage. The unique microstructure of carbon nanomaterials leads to good mechanical stability, low density, high thermal conductivity, and high strength, etc.
Xia Chen   +3 more
doaj   +1 more source

Numerical Study of the Dynamic Response of Heat and Mass Transfer to Operation Mode Switching of a Unitized Regenerative Fuel Cell

open access: yesEnergies, 2016
Knowledge concerning the complicated changes of mass and heat transfer is desired to improve the performance and durability of unitized regenerative fuel cells (URFCs).
Hong Xiao   +3 more
doaj   +1 more source

A Review on the Rural Household Energy in China From 1990s—Transition, Regional Heterogeneity, Emissions, Energy-Saving, and Policy

open access: yesFrontiers in Energy Research, 2022
Rural energy is related to the domestic energy supply, consumption, and improvement of living standards of more than one-third of the population in China.
Xinxin Zhang   +6 more
doaj   +1 more source

Study on the Characteristics of Expander Power Output Used for Offsetting Pumping Work Consumption in Organic Rankine Cycles

open access: yesEnergies, 2014
The circulation pump in an organic Rankine cycle (ORC) increases the pressure of the liquid working fluid from low condensing pressure to high evaporating pressure, and the expander utilizes the pressure difference to generate work.
Yu-Ting Wu   +6 more
doaj   +1 more source

Nonlinear Dynamic Characteristics of Rod Fastening Rotor with Preload Relaxation

open access: yesEnergies, 2022
Compared to ordinary rotor, rod fastening rotor has the advantages of lighter weight, higher strength and easier installation, so it is widely used in gas turbine.
Li Zhao   +3 more
doaj   +1 more source

Experimental Study on Heat Loss of a Single Screw Expander for an Organic Rankine Cycle System

open access: yesFrontiers in Energy Research, 2020
For displacement expanders, the irreversible losses include leakage, friction, heat dissipation, and flow resistance. Currently, the research on the heat loss of expanders is scarce, especially with regards to experimental studies.
Wei Wang   +9 more
doaj   +1 more source

Energy-Saving Strategies of Axial Flow Fans for Direct Dry Cooling System

open access: yesEnergies, 2021
The operating conditions of axial flow fans are closely related to the thermo-flow characteristics of the mechanical draft direct dry cooling system. Moreover, the uneven distribution of cooling air driven by axial flow fans may lead to the deterioration
Wenhui Huang   +3 more
doaj   +1 more source

Two-Dimensional Simulation of Mass Transfer in Unitized Regenerative Fuel Cells under Operation Mode Switching

open access: yesEnergies, 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
doaj   +1 more source

Performance Study on a Single-Screw Expander for a Small-Scale Pressure Recovery System

open access: yesEnergies, 2016
A single-screw expander with 195 mm diameter is developed to recover pressure energy in letdown stations. An experiment system is established using compressed air as a working fluid instead of natural gas.
Guoqiang Li   +5 more
doaj   +1 more source

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