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Design of an Automatic Test System for Diesel Inlet Swirl and Evaluation Methods

Wang Jichao,Liu Dexin,Feng Hongqing

Strategic Study of CAE 2007, Volume 9, Issue 5,   Pages 85-90

Abstract:

  Swirl is a key parameter that directly influences the efficiency

Keywords： swirl     diesel engine     paddle wheel anemometer     swirl torque meter     steady test bench    

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Micronization of curcumin with biodegradable polymer by supercritical anti-solvent using micro swirl

Kimthet Chhouk, Wahyudiono, Hideki Kanda, Shin-Ichro Kawasaki, Motonobu Goto

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 184-193 doi: 10.1007/s11705-017-1678-3

Abstract: In this work, a swirl mixer was employed to produce the micronized curcumin with polyvinylpyrrolidone

Keywords： micronization     curcumin     polyvinylpyrrolidone     supercritical anti-solvent     swirl mixer    

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New nonlinear stiffness actuator with predefined torque‒deflection profile

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0721-3

Abstract: A nonlinear stiffness actuator (NSA) could achieve high torque/force resolution in low stiffness rangeincluding leaf springs and especially designed cams, which could perform a predefined relationship between torqueAn analytical methodology that maps the predefined relationship between torque and deflection to theof performing predefined torque‒deflection profiles.Three kinds of prototype experiments, including verification experiment of the predefined torque‒deflection

Keywords： compliant actuator     nonlinear stiffness actuator     nonlinear spring     predefined torque−deflection profile    

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Influence of mass air flow ratio on gas-particle flow characteristics of a swirl burner in a 29 MW pulverized

Rong YAN, Zhichao CHEN, Shuo GUAN, Zhengqi LI

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 68-77 doi: 10.1007/s11708-020-0697-9

Abstract: In a gas/particle two-phase test facility, a three-component particle-dynamics anemometer was used to measure the characteristics of gas/particle two-phase flows in a 29 megawatt (MW) pulverized coal industrial boiler equipped with a new type of swirling pulverized coal burner. The distributions of three-dimensional gas/particle velocity, particle volume flux, and particle size distribution were measured under different working conditions. The mean axial velocity and the particle volume flux in the central region of the burner outlet were found to be negative. This indicated that a central recirculation zone was formed in the center of the burner. In the central recirculation zone, the absolute value of the mean axial velocity and the particle volume flux increased when the external secondary air volume increased. The size of the central reflux zone remained stable when the air volume ratio changed. Along the direction of the jet, the peak value formed by the tertiary air gradually moved toward the center of the burner. This tertiary air was mixed with the peak value formed by the air in the adiabatic combustion chamber after the cross-section of / = 0.7. Large particles were concentrated near the wall area, and the particle size in the recirculation zone was small.

Keywords： industrial pulverized coal boiler     swirl burner     air/particle flow     particle dynamic analyzer (PDA)    

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Control of peak pressures of an HCCI engine under varying swirl and operating parameters

T. KARTHIKEYA SHARMA,G. AMBA PRASAD RAO,K. MADHU MURTHY

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 337-346 doi: 10.1007/s11708-016-0401-2

Abstract: In this paper, an attempt is made to analyze computationally the effect of induction swirl in controllingengine, piston bowl geometry, exhaust gas recirculation (EGR) and equivalence ratio under different swirlThe results show that the swirl ratio has a considerable impact on controlling the peak pressures ofA reduction in peak pressures are observed with a swirl ratio of 4 because of reduced in cylinder temperaturesratios suggest that lower intake temperatures, reentrant piston bowl, higher engine speeds and higher swirl

Keywords： HCCI engine     ECFM-3Z     Swirl ratio     peak pressures     engine speed     piston bowl geometry    

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Analysis and characterization of wind-solar-constant torque spring hybridized model

Shantanu ACHARYA,Subhadeep BHATTACHARJEE

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 279-289 doi: 10.1007/s11708-014-0312-z

Abstract: Solar and wind are the most promising renewable energy resources. But their unpredictable and varying nature prevents them from being used as the sole resource for power generation. This paper presents a model of wind and solar thermal hybrid power plant with a spring storage system which is expected to play an efficient role in combating with the drawbacks related to renewable power generation. In the proposed scheme, wind energy is harnessed by a hybrid vertical axis wind turbine, solar energy is utilized by a Stirling engine, and the surplus energy is stored in a winding spring. The paper discusses the working methodologies and analyses the performance of such 2.6 kW hybrid power plant model. It has been observed that the plant is capable of consistently generating 50% of its rated capacity irrespective of limitations in solar and wind resources.

Keywords： hybrid vertical axis wind turbine     Stirling engine     solar-thermal energy     wind energy     constant torque spring    

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Nonlinear sealing force of a seawater balance valve used in an 11000-meter manned submersible

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0726-y

Abstract: Balance valve is a core component of the 11000-meter manned submersible “struggle,” and its sealing performance

Keywords： seawater balance valve     sealing performance     hybrid ANE model     FEM     minimum sealing force equation    

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Spray characteristics of high-pressure swirl injector fueled with alcohol

WANG Xibin, CHEN Wansheng, GAO Jian, JIANG Deming, HUANG Zuohua

Frontiers in Energy 2007, Volume 1, Issue 1,   Pages 105-112 doi: 10.1007/s11708-007-0012-z

Abstract: The spray characteristics of methanol and ethanol with high-pressure swirl injector were explored experimentallythat methanol and ethanol had a slightly larger Sauter mean diameter (SMD) than that of gasoline with swirlNumerical simulation could successfully demonstrate the spray characteristics of high-pressure swirl

Keywords： low back-pressure     diameter     initial spray     hollow     middle    

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Comparative study of various artificial intelligence approaches applied to direct torque control of induction

Moulay Rachid DOUIRI, Mohamed CHERKAOUI

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 456-467 doi: 10.1007/s11708-013-0264-8

Abstract: In this paper, three intelligent approaches were proposed, applied to direct torque control (DTC) ofobtained demonstrate the feasibility of the adaptive network-based fuzzy inference system based direct torqueCompared with the classical direct torque control, fuzzy logic based direct torque control (FL-DTC),and neural networks based direct torque control (NN-DTC), the proposed ANFIS-based scheme optimizes theelectromagnetic torque and stator flux ripples, and incurs much shorter execution times and hence the

Keywords： adaptive neuro-fuzzy inference system (ANFIS)     artificial neural network     direct torque control (DTC)     fuzzy    

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Analytical model and finite element computation of braking torque in electromagnetic retarder

Lezhi YE,Guangzhao YANG,Desheng LI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 368-379 doi: 10.1007/s11465-014-0314-x

Abstract:

An analytical model has been developed for analyzing the braking torque in electromagnetic retarderThe magnetic field distribution in air gap, the eddy current induced in the rotor and the braking torqueThe influencing factors of braking torque have been studied.

Keywords： electromagnetic retarder     magnetic field distribution     magnetic circuit     finite element method    

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Erratum to: Meter-scale variation within a single transect demands attention to taxon accumulation curves

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-022-1560-5

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Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 836-849 doi: 10.1007/s11708-017-0444-z

Abstract: It describes a coupling of sliding mode direct torque control (DTC) with sliding mode flux and speedThis algorithm uses direct torque control basics and the sliding mode approach.A robust electromagnetic torque and flux controllers are designed to overcome the conventional SVM-DTC

Keywords： induction motor     direct torque control (DTC)     space vector modulation (SVM)     sliding mode control (SMC)    

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A total torque index for dynamic performance evaluation of a radial symmetric six-legged robot

Kejia LI, Xilun DING, Marco CECCARELL

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 219-230 doi: 10.1007/s11465-012-0320-9

Abstract: A novel index of total torque is proposed by considering the posture of the supporting legs.

Keywords： six-legged robots     dynamic modeling     performance index    

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Sensorless direct torque control for salient-pole PMSM based on extended Kalman filter fed by AC/DC/AC

F. BENCHABANE, A. TITAOUINE, O. BENNIS, K. YAHIA, D. TAIBI, A. GUETTAF

Frontiers in Energy 2012, Volume 6, Issue 3,   Pages 247-254 doi: 10.1007/s11708-012-0190-1

Abstract: synchronous motor (IPMSM) drives method with extended Kalman filter (EKF) for speed, rotor position and load torqueThe direct torque control (DTC) technique for permanent magnet synchronous motor (PMSM) is receiving

Keywords： direct torque control (DTC)     sensorless control     extended Kalman filter (EKF)     permanent magnet synchronous    

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Definition and Verification of Shape Meter Method

Zhang Jinzhi,Duan Chunhua,Zhu Jianqin

Strategic Study of CAE 2001, Volume 3, Issue 12,   Pages 47-51

Abstract: analytical theory for shape stiffness and the shape and gauge coordination control law are called shape meter, two experimental methods had been adopted to verify the correctness and practicality of the shape meter

Keywords： shape meter methcxl     shape stiffness equation     survey and control mathematics model     follow-up calculation    

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Title Author Date Type Operation

Design of an Automatic Test System for Diesel Inlet Swirl and Evaluation Methods

Wang Jichao,Liu Dexin,Feng Hongqing

Journal Article

Micronization of curcumin with biodegradable polymer by supercritical anti-solvent using micro swirl

Kimthet Chhouk, Wahyudiono, Hideki Kanda, Shin-Ichro Kawasaki, Motonobu Goto

Journal Article

New nonlinear stiffness actuator with predefined torque‒deflection profile

Journal Article

Influence of mass air flow ratio on gas-particle flow characteristics of a swirl burner in a 29 MW pulverized

Rong YAN, Zhichao CHEN, Shuo GUAN, Zhengqi LI

Journal Article

Control of peak pressures of an HCCI engine under varying swirl and operating parameters

T. KARTHIKEYA SHARMA,G. AMBA PRASAD RAO,K. MADHU MURTHY

Journal Article

Analysis and characterization of wind-solar-constant torque spring hybridized model

Shantanu ACHARYA,Subhadeep BHATTACHARJEE

Journal Article

Nonlinear sealing force of a seawater balance valve used in an 11000-meter manned submersible

Journal Article

Spray characteristics of high-pressure swirl injector fueled with alcohol

WANG Xibin, CHEN Wansheng, GAO Jian, JIANG Deming, HUANG Zuohua

Journal Article

Comparative study of various artificial intelligence approaches applied to direct torque control of induction

Moulay Rachid DOUIRI, Mohamed CHERKAOUI

Journal Article

Analytical model and finite element computation of braking torque in electromagnetic retarder

Lezhi YE,Guangzhao YANG,Desheng LI

Journal Article

Erratum to: Meter-scale variation within a single transect demands attention to taxon accumulation curves

Journal Article

Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Journal Article

A total torque index for dynamic performance evaluation of a radial symmetric six-legged robot

Kejia LI, Xilun DING, Marco CECCARELL

Journal Article

Sensorless direct torque control for salient-pole PMSM based on extended Kalman filter fed by AC/DC/AC

F. BENCHABANE, A. TITAOUINE, O. BENNIS, K. YAHIA, D. TAIBI, A. GUETTAF

Journal Article

Definition and Verification of Shape Meter Method

Zhang Jinzhi,Duan Chunhua,Zhu Jianqin

Journal Article