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Chunrui Liu, Lidong He, Xingyun Jia, Haozhe Zhu, Tao Chen and Wenhao Wang
The rotary seal is a key component of the aero engine. Under actual working conditions, most rotary seals always operate in an eccentric state (caused by installation errors), and when a large eccentricity occurs, it may lead to a large amount of gas lea...
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Robin M. Robrecht and Peter F. Pelz
Grooved liquid annular seals have a significant influence on the design of turbomachines. Corresponding lubrication film models need to account for the different friction behavior of the grooves compared to plain seals. However, there is a lack of reliab...
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Xuepeng Liu, Shiping He and Jianhua Zheng
Deep-sea pressure vessels are specialized pressure vessels designed for automatic deployment from underwater to the surface. These vessels find extensive applications in underwater life-saving and transportation. Their interiors are furnished with a pair...
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Anna Bru Revert, Paul F. Beard and John W. Chew
An investigation of hot gas ingestion driven by the disc pumping effect in a chute seal was conducted at the Oxford Rotor Facility. Measurements of mean pressure, unsteady pressure and gas concentration have been logged and analysed under different opera...
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Michael Flouros, Francois Cottier, Markus Hirschmann and Christina Salpingidou
Seals are considered one of the most important flow elements in turbomachinery applications. The most traditional and widely known seal is the labyrinth seal but in recent years other types like the brush or carbon seals were introduced since they consid...
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Michael Flouros, Francois Cottier, Markus Hirschmann and Christina Salpingidou
Seals are considered one of the most important flow elements in turbomachinery applications. The most traditional and widely known seal is the labyrinth seal but in recent years other types like the brush or carbon seals were introduced since they consid...
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DingXin Cheng and Lerose Lane
Single chip seals are used by many agencies to maintain or preserve their roadways. While the construction and performance of single chip seals can be easily found from literature, the construction of double chip seals with and without paving fabric or p...
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Qingcai Zhang, Qinqin Wang, Xiaoming Tan and Jingzhou Zhang
A rim seal is often used to prevent the ingress of high-temperature gas into the turbine disk cavity and protect the turbine disk from damage. Based on the overlapping rim seal (Seal-A), this paper proposes two more composite sealing structures (Seal-B a...
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Audrius Vaitkus, Viktoras Vorobjovas, Faustina Tuminiene, Judita Gra?ulyte
Pág. 2441 - 2448
In Lithuania more than third (33.9%) of state roads are gravel roads. Maintenance of these roads needs large budget and operation of them results in social discomfort. The best method to improve driving conditions and avoid social discomfort for the inha...
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Minghua Wei, Shaopeng Wu, Peide Cui, Tianyuan Yang and Yang Lv
Steel slag, the by-product of steelmaking, is a desirable alternative material for natural aggregate. However, there are few studies applying steel slag in the preventive maintenance of asphalt pavements, especially chip seal. The main objective of this ...
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Manuel Hildebrandt, Heiko Schwarz, Corina Schwitzke, Hans-Jörg Bauer and Jens Friedrichs
Reducing losses in the secondary air system of gas and steam turbines can significantly increase the efficiency of such machines. Meanwhile, brush seals are a widely used alternative to labyrinth seals. Their most valuable advantage over other sealing co...
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Manuel Hildebrandt, Heiko Schwarz, Corina Schwitzke, Hans-Jörg Bauer and Jens Friedrichs
Reducing losses in the secondary air system of gas and steam turbines can significantly increase the efficiency of such machines. Meanwhile, brush seals are a widely used alternative to labyrinth seals. Their most valuable advantage over other sealing co...
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Dakshina R. Seal, Oscar Liburd and Jian Li
Vegetable leafminer, Liriomyza trifolii (Burgess) is a common pest of almost all vegetable crops grown in Florida, USA. Leafminer infestation begins as soon as vegetable seedlings are above the ground. Growers start using insecticides of various chemical...
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Purvi Jhawar and Jayanta Kumar Seal
The literature on the influence of political and policy-related uncertainties on financial aspects has gained an impetus in the last two decades. This study adds to the existing literature by reviewing the impact of political uncertainty on initial publi...
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F. H. Rahman, S. Mukherjee, S. Das, K. Mukhopadhyay, R. R. Bera, Antara Seal
Pág. Page:99 - 108Abstrac
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Kyriaki Kyriakou, Brenda Seal
Pág. Page:129 - 146Abstrac
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Yizhen Zhao and Chunhua Wang
To reduce gas leakage, shape optimization of a straight labyrinth seal was carried out. The six design parameters included seal clearance, fin width, fin height, fin pitch, fin backward, and forward expansion angle. The CFD (Computational Fluid Dynamics)...
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Qiuwan Du and Di Zhang
The leakage problem of supercritical carbon dioxide (SCO2) axial-inflow turbine brings great challenges to the efficiency and security of the power system. Labyrinth seals are usually utilized to improve the leakage characteristics of the blade tip. In t...
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Oscar Bermejo, Juan Manuel Gallardo, Adrian Sotillo, Arnau Altuna, Roberto Alonso and Andoni Puente
Labyrinth seals are commonly used in turbomachinery in order to control leakage flows. Flutter is one of the most dangerous potential issues for them, leading to High Cycle Fatigue (HCF) life considerations or even mechanical failure. This phenomenon dep...
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Darko Lovrec, Roland Kalb and Vito Tic
Manufacturers of hydraulic fluids invest a lot of effort and resources in improving their physico-chemical properties, with the goal of getting as close as possible to the properties of an ideal hydraulic fluid. It should be non- flammable, environmental...
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