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István Derzsi, János Takács
Pág. 156 - 163
At present times, in the context of rising fuel and energy prices the energy saving is very actual phenomenon. A better building insulation and the replacement of large transparent constructions will significantly reduce heat loss of the building. The hy...
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Yong Zhu, Qingyi Wu, Shengnan Tang, Boo Cheong Khoo and Zhengxi Chang
As the modern industry rapidly advances toward digitalization, networking, and intelligence, intelligent fault diagnosis technology has become a necessary measure to ensure the safe and stable operation of mechanical equipment and effectively avoid major...
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Eleonora Grazioli, Cristiana Guerranti, Paolo Pastorino, Giuseppe Esposito, Emanuele Bianco, Emilio Simonetti, Simona Rainis, Monia Renzi and Antonio Terlizzi
Striped venus (Chamelea gallina) is one of the most important fish resources on the west coast of the Adriatic Sea. Recently, there has been a widespread die-off of C. gallina populations in Friuli-Venezia Giulia (northern Adriatic Sea, Italy), probably ...
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In recent years, the interest of industry towards condition-based maintenance, substituting traditional time-based maintenance, is growing. Indeed, condition-based maintenance can increase the system uptime with a consequent economic advantage. In this p...
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Andrea Formato, Domenico Guida, Domenico Ianniello, Francesco Villecco, Tony Leopoldo Lenza and Arcangelo Pellegrino
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János Csemniczky
Pág. 17 - 21
At the prerotation control there is an adjustable blade row before the pump impeller for producing a peripheral component of the inlet flow velocity. The effect of prerotation is changing along the H - Q characteristic and the range of control depends on...
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Adam Deptula, Piotr Osinski and Marian A. Partyka
This study focuses on the construction of a prototype series of pumps. The technological capabilities of the entire series of gear pumps with a three-poly-involute outline were determined. We developed neural networks to analyze the dimensional tolerance...
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Ján Takács, Zuzana Straková, Luká? Rácz
Pág. 10 - 15
Circulation pumps are mechanical devices, which are used to create the overpressure required for the transportation of a heat-transfer medium in heating technology as well as in other related technologies. In a circulation pump the mechanical energy gene...
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Marijonas Bogdevicius, Vigaile Semaskaite, Tatjana Paulauskiene, Jochen Uebe and Algimantas Danilevicius
Global natural gas resources are growing and are increasingly geographically diverse. A Floating Storage and Regasification Unit (FSRU) is one of the most commonly used vessel types in the global ship fleet due to the possibility of storage, reloading to...
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Yang Yang, Ling Zhou, Hongtao Zhou, Wanning Lv, Jian Wang, Weidong Shi and Zhaoming He
Marine centrifugal pumps are mostly used on board ship, for transferring liquid from one point to another. Based on the combination of orthogonal testing and numerical simulation, this paper optimizes the structure of a drainage trough for a typical low-...
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Alexander Sperlich, Dino Pfeiffer, Jens Burgschweiger, Enrique Campbell, Marcus Beck, Regina Gnirss and Mathias Ernst
Due to their lower energy consumption, permanent magnet synchronous motor (PMSM) submersible pumps have been introduced in ground water well field operation. Besides direct savings of energy, the introduction of PMSM pumps together with the required vari...
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Baoling Cui and Mingyu Shi
Centrifugal pumps are essential fluid transfer devices in marine engineering. As the two most critical components of a centrifugal pump, the dynamic?static interference between the volute and the impeller makes the flow near the cutwater highly unstable,...
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Guisheng Zhao, Shaonan Chen, Yixiang Liu and Kai Guo
In real-world applications, hydraulic pressure control performance is influenced by model uncertainties, the control bandwidths of valves and pumps, and deviations from the linear working region. To overcome the aforementioned obstacles, a novel referenc...
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Sangbeom Woo, Timothy Opperwall, Andrea Vacca and Manuel Rigosi
As a key component in power transfer, positive displacement machines often represent the major source of noise in hydraulic systems. Thus, investigation into the sources of noise and discovering strategies to reduce noise is a key part of improving the p...
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Lingbo Nan, Yumeng Wang, Diyi Chen, Weining Huang, Zuchao Zhu and Fusheng Liu
Traditional centrifugal pump performance prediction (CPPP) employs the semi-theoretical and semi-empirical approaches; however, it can lead to many prediction errors. Considering the superiority of deep learning when applied to nonlinear systems, in this...
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Nicu?or Baroiu, Virgil Gabriel Teodor, Viorel Paunoiu, Georgiana-Alexandra Moro?anu and Iona?-Catalin Dumitrescu
In most situations, for the proper design of a gerotor pump, numerous parameters must be taken into account: the pump geometry, the properties of the materials from which the pumps are made (Young?s modulus, Poisson?s coefficient, friction coefficients, ...
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Alexander Mitov, Tsonyo Slavov and Jordan Kralev
A system for the rapid prototyping of real-time control algorithms for open-circuit variable displacement axial-piston pumps is presented. In order to establish real-time control, and communication and synchronization with the programmable logic controll...
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Jiaqi Chen, Jieyun Mao, Hongbo Shi and Xikun Wang
In order to study the characteristics of a bidirectional shaft tubular pump with S-type symmetric airfoil blades, a prototype model was designed, manufactured, and tested. The energy characteristics, cavitation characteristics, and runaway characteristic...
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Wei Li, Mingjiang Liu, Leilei Ji, Yulu Wang, Muhammad Awais, Jingning Hu and Xiaoyan Ye
This paper presents the matching characteristics of impellers and guide vanes of high capacity and pressure seawater desalination pumps by using computational fluid dynamics (CFD). The single-stage pump is numerically calculated, and its external charact...
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Lei Jiang, Ling Bai, Peng Xue, Guangjie Peng and Ling Zhou
The slurry pump is one of the most important pieces of equipment in mineral transportation and separation systems, and it has complex two-phase flow characteristics and wear mechanisms. By employing numerical and experimental methods, the solid?liquid tw...
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