Results 11 to 20 of about 536,814 (315)

xEV thermal system control [PDF]

open access: yes, 2019
The increasing electrification of vehicle powertrains has resulted in complex thermal systems. The performance of the thermal system has a strong impact on the electric range. This paper will discuss different thermal system concepts and the related control strategies to optimise their performance.
Fussey, Peter   +2 more
core   +2 more sources

Flow Distribution Characteristics in Microchannel Heat Sinks in Pumping Liquid Cooling System

open access: yesShanghai Jiaotong Daxue xuebao, 2023
With the continuous improvement of pump-driven liquid cooling requirements for electronic devices, the cooling requirements for multiple dispersed units are inevitable, resulting in higher requirements of equal cooling capacity for parallel microchannel ...
XIN Pengfei, MIAO Jianyin, KUANG Yiwu, ZHANG Hongxing, WANG Wen
doaj   +1 more source

Assessment of vibration suppression methods for spacecraft electric pump unit

open access: yesКосмические аппараты и технологии, 2023
This article characterizes the spacecraft as a means of performing various tasks, including by precision equipment. Emphasis is placed on vibration as one of the influencing factors and on the need for a low level of vibration on the spacecraft.
O. V. Shirobokov   +3 more
doaj   +1 more source

Electrodeposition Patterned Copper Foam with Micro/Nanostructures for Reducing Supercooling in Water-Based Cool Storage Phase-Change Materials

open access: yesApplied Sciences, 2020
Copper foam is widely used in industrial catalysis, flow boiling, and latent heat storage systems. It is expected that a multi-level topology copper foam with micro/nanostructures can further enhance performance.
Mou Xu   +4 more
doaj   +1 more source

Nonequilibrium Control of Thermal and Mechanical Changes in a Levitated System [PDF]

open access: yesPhysical Review Letters, 2022
Fluctuation theorems are fundamental extensions of the second law of thermodynamics for small nonequilibrium systems. While work and heat are equally important forms of energy exchange, fluctuation relations have not been experimentally assessed for the generic situation of simultaneous mechanical and thermal changes.
Markus Rademacher   +5 more
openaire   +4 more sources

Dynamic Characteristics and Experimental Research of Dual-Rotor System with Rub-Impact Fault

open access: yesShock and Vibration, 2016
Rub-impact fault model for dual-rotor system was further developed, in which rubbing board is regarded as elastic sheet. Sheet elastic deformation, contact penetration, and elastic damping support during rubbing of sheet and wheel disk were considered ...
Hongzhi Xu   +4 more
doaj   +1 more source

The calculation of the heat control accumulator volume of two-phase heat transfer loop of a spacecraft thermal control system

open access: yesАвіаційно-космічна техніка та технологія, 2021
Spacecraft thermal control systems based on two-phase mechanically pumped loops have advantages in terms of mass and power consumption for auxiliary needs compared to single-phase thermal control systems.
Artem Hodunov   +2 more
doaj   +1 more source

Dynamic Response of Rub Caused by a Shedding Annular Component Happening in a Steam Turbine

open access: yesShock and Vibration, 2015
Rub caused by a shedding annular component is a severe fault happening in a steam turbine, which could result in a long-term wearing effect on the shaft.
J. M. Chen   +3 more
doaj   +1 more source

The Fault Feature Extraction of Rolling Bearing Based on EMD and Difference Spectrum of Singular Value

open access: yesShock and Vibration, 2016
Nowadays, the fault diagnosis of rolling bearing in aeroengines is based on the vibration signal measured on casing, instead of bearing block. However, the vibration signal of the bearing is often covered by a series of complex components caused by other
Te Han, Dongxiang Jiang, Nanfei Wang
doaj   +1 more source

The Development Strategies and Technology Roadmap of Bioenergy for a Typical Region: A Case Study in the Beijing-Tianjin-Hebei Region in China

open access: yesEnergies, 2020
The Beijing-Tianjin-Hebei region has abundant biomass resources, which are difficult to collect and thus are underutilized. However, the potential estimation of biomass energy can result in a comprehensive understanding of bioenergy resources in order to
Xin Zhang   +5 more
doaj   +1 more source

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