Results 31 to 40 of about 1,022 (178)

Performance analysis of a novel small-scale radial turbine with adjustable nozzle for ocean thermal energy conversion

AIP Advances, 2023
Ocean thermal energy is acknowledged as one of the most promising ocean renewable energy sources in low latitude sea areas. In the ocean thermal energy conversion system, the turbine plays a significant role, and it is responsible for converting the ...
Yunzheng Ge, Jingping Peng, Fengyun Chen, Lei Liu, Wanjun Zhang, Weimin Liu, Jinju Sun   +6 more
doaj   +1 more source

Automated Process Optimization in a Novel Triple Shaft Mixer with Adaptive Mixing Modes

Chemie Ingenieur Technik, EarlyView.
A novel multi‐purpose mixer with adjustable blade angle and a coaxial stirrer is developed, providing three degrees of freedom. An optimization strategy is integrated to autonomously identify optimal operating conditions through automated tests. The current draw of the main stirrer serves as the optimization criterion, while stirrer speeds, directions,
B. Schwarz, H. Kniele, J. A. Lindner
wiley   +1 more source

Prediction of runner eccentricity and Alford force of a Kaplan turbine based on variational mode decomposition

Energy Science & Engineering
The rotor blades of an axial‐flow turbine are cantilever structures, and there is inevitably a gap between them and the casing. Due to factors such as rotor wear and unit vibration, the eccentricity of the impeller will change during the operation of the
Zilong Hu, Qiang Liu, Xiaohang Wang, Mingkun Fang, Taiping Chen, Ran Tao, Junfeng Ding, Di Zhu, Ruofu Xiao, Huanmao Wang   +9 more
doaj   +1 more source

Research for turbocompressors with general impeller for their application in gas turbine engines and power plants

Авіаційно-космічна техніка та технологія
To develop engines and power plants, the issues of improving small-sized engines through the use of a new type of turbomachines – turbo-compressors with general impeller (TCG) have been considered.
Vladimir Shkabura
doaj   +1 more source

Electrical resistance tomography for process intensification of gas–liquid stirred tanks: A comparison of linear back projection and sensitivity conjugate gradient algorithms

The Canadian Journal of Chemical Engineering, EarlyView.
Monitoring gas–liquid dynamics using Electrical resistance tomography for process intensification in stirred tanks Abstract Electrical resistance tomography (ERT) is a non‐invasive technique widely applied to the study of multiphase flows, where phases exhibit different electrical properties.
Federico Alberini, Giuseppina Montante, Alessandro Paglianti   +2 more
wiley   +1 more source

Electronic Nose‐Based Methanol Feedback Precision Control Strategy for High‐Yield Alkaline Phosphatase Fermentation by Hansenula polymorpha

Food Bioengineering, EarlyView.
Establishment of Closed‐Loop Methanol Feedback Precision Control System for Alkaline Phosphatase by Hansenula polymorpha. The electronic nose screened model for methanol detection as the core technical logic of online gas quantification. Methanol feedback control strategy for greatly elevating alkaline phosphatase production.
Jian‐Guang Liang, Shao‐Jie Wang, Jia‐Jia Wang, Muhammad Safwan Siddique, Zishu Zhang, Ciying Xiao, Ze‐Jian Wang   +6 more
wiley   +1 more source

Effect of adjacent impeller on mixing region of impeller in stirred vessel with two stage turbine impellers.

KAGAKU KOGAKU RONBUNSHU, 1987
To evaluate the effect of an adjacent impeller on the axial mixing region of a turbine impeller in a stirred vessel with multiple-stage impellers, the mixing process of liquid was observed by the color reaction method at various distances between two-stage turbine impellers.
Yahata, Toshio, Komatsu, Fujio, Akiyoshi, Makoto, Ando, Koji   +3 more
openaire   +2 more sources

Dynamic Analysis of Electrically Assisted Turbocharger Rotor Considering Contact Effects in Nut Structures

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The rotor system of an electrically assisted turbocharger (EAT) is composed of multiple shaft components; The nonlinear connection and contact effects make it difficult to determine the system dynamic characteristics. To improve the modeling accuracy of EAT rotor system and evaluate the influence of contact between multi‐axis components and ...
Wenchao Liang, Shuqian Cao, Xiaolin Cao, Mingyue Hu, Yanhong Kang, Tianyou Wang   +5 more
wiley   +1 more source

EFFECT OF IMPELLER BLADE THICKNESS ON CRITICAL IMPELLER SPEED IN AN AGITATED VESSEL

Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2017
The successful design and operation of solid-liquid agitators require proper prediction of critical impeller speed (Njs) needed to suspend solids. It depends on system and impeller geometry as well as the properties of both solid and liquid.
LOGANATHAN MURUGANANDAM, DEVARAJULU CHITRA *   +1 more
doaj  

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source