Results 21 to 30 of about 97,348 (264)

An RL-Guided Hybrid Forecasting Framework for Aircraft Engine RUL and Performance Emission Prediction

Applied Sciences
In this paper, a new hybrid prediction method is proposed for estimating remaining useful life, emissions, and performance parameters using experimental data obtained from a micro-turbojet engine. Experiments were conducted under various rotational speed
Ukbe Üsame Uçar, Hakan Aygün
doaj   +1 more source

Study effects of bio-inspired flow filed design on Polymer Electrolyte Membrane fuel cell performance

Case Studies in Thermal Engineering, 2021
The performance of the Polymer Electrolyte Membrane (PEM) fuel cells is affected by the flow fields design and dimensions because this fields distribute gases to reactive sites, remove reaction products efficiently, and supply a path for electrons of ...
Safaa A. Ghadhban, Wissam H. Alawee, Hayder A. Dhahad   +2 more
doaj   +1 more source

Fuel flow prediction of domestic civil aircraft based on LSTM-XGBoost

Hangkong gongcheng jinzhan
The neural network model is widely used in fuel consumption prediction，but single model is less used in the application of civil aircraft because of its low prediction accuracy.
YANG Junli, LI Likun, QIAN Yu, TANG Shengxiang, YANG Peida   +4 more
doaj   +1 more source

Numerical Simulation of Cross Flow Characteristic for Annular Fuel Mixed Core

Yuanzineng kexue jishu, 2023
Annular fuel is a new type of pressurized water reactor fuel with inner and outer dual coolant channels. Selecting the actual reactor and annular fuel pilot assembly to form a mixed core to carry out irradiation test is one of the important links in the ...
HU Liqiang;TIAN Zihao;JI Songtao;HE Xiaojun
doaj  

Use of Multi-Functional Flexible Micro-Sensors for in situ Measurement of Temperature, Voltage and Fuel Flow in a Proton Exchange Membrane Fuel Cell

Sensors, 2010
Temperature, voltage and fuel flow distribution all contribute considerably to fuel cell performance. Conventional methods cannot accurately determine parameter changes inside a fuel cell.
Chung-Ju Lee, Pin-Cheng Chan, Chi-Yuan Lee   +2 more
doaj   +1 more source

Trajectory Optimization with Constraints Using Neural Networks and Genetic Algorithms

Aerospace
Improving the flight trajectory in climb phases, such as in the continuous climb operation, has the potential to reduce fuel consumption. In this paper, we propose an approach that combines a neural network and genetic algorithms to determine the fuel ...
Haruto Taguchi, Eri Itoh
doaj   +1 more source

Expansion of the feedstock base for the production of diesel fuel by involving the heavy fractions and cold flow improvers

Oil & Gas Science and Technology, 2020
In this paper, the viability of expanding the feedstock base of diesel fuel production by the involvement of the heavy diesel fraction and the use of cold flow improvers was shown.
Kirgina Maria, Bogdanov Ilya, Belinskaya Nataliya, Altynov Andrey, Morozova Yana   +4 more
doaj   +1 more source

Investigation of mixing characteristics of gaseous kerosene scramjet combustor with an oxygen-supplemented strut

AIP Advances, 2023
The mixing state of the fuel determines whether the scramjet combustor can work with high performance. The flow field structure and mixing characteristics of the supersonic combustor are studied by using large eddy simulation.
Fuxu Quan, Juntao Chang, Chen Kong, Guangwei Wu, Dayi Wang   +4 more
doaj   +1 more source

Analysis of Transverse Flow Characteristics in LBE-cooled Wire-wrapped Fuel Assembly

Yuanzineng kexue jishu, 2022
LBE-cooled fast reactor (LBFR) has a promising application prospect in energy generation and transmutation of highlevel radioactive waste. Wirewrapped fuel rods are usually used in LBFR to reach high heat transfer efficiency and selfsupport.
CONG Tenglong;WANG Junjie;XIAO Yao;LIU Maolong;GU Hanyang
doaj  

Finding best operational conditions of PEM fuel cell using adaptive neuro-fuzzy inference system and metaheuristics

Energy Reports, 2022
The optimum output power of the proton exchange membrane fuel cell (PEMFC) is dependent on operational conditions such as fuel pressure, oxidant pressure, fuel flow rate, and oxidant flow rate.
Hegazy Rezk, Tabbi Wilberforce, Enas Taha Sayed, Ahmed N.M. Alahmadi, A.G. Olabi   +4 more
doaj   +1 more source