Log in

Relevant bibliographies by topics / Turbine casing / Journal articles

To see the other types of publications on this topic, follow the link: Turbine casing.

Journal articles on the topic 'Turbine casing'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Turbine casing.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Yu, Maoyu, Jianfang Wang, Haijun Xuan, Wangjiao Xiong, Zekan He, and Mingmin Qu. "Simulation and Experimental Study of Gas Turbine Blade Tenon-Root Detachment on Spin Test." Aerospace 11, no. 8 (2024): 629. http://dx.doi.org/10.3390/aerospace11080629.

Full text

Abstract:

This paper addresses the critical issue of turbine blade containment in aircraft engines, crucial for ensuring flight safety. Through a comprehensive approach integrating numerical simulations and experimental validations, the containment capabilities of gas turbine engine casings are thoroughly analyzed. The study investigates the impact dynamics, deformation characteristics, and energy absorption mechanisms during blade detachment events, shedding light on the containment process. Based on the multi-stage nature of gas turbines, two different blade structures were designed for turbine blades

APA, Harvard, Vancouver, ISO, and other styles

2

Lazarevikj, M., and Z. Markov. "Automated hydraulic design procedure for a Francis turbine spiral casing." IOP Conference Series: Earth and Environmental Science 1079, no. 1 (2022): 012009. http://dx.doi.org/10.1088/1755-1315/1079/1/012009.

Full text

Abstract:

Abstract The spiral casing of a Francis turbine distributes the water from the penstock to the stay and guide vanes circumferentially and uniformly, which is important for achieving the required flow conditions at the runner entrance. Moreover, the spiral casing is supposed to provide the required inlet velocity in front of the stay vanes and create minimal hydraulic losses. The dimensions and shape of the spiral casing depend on the hydraulic and energy parameters of the turbine. A calculation methodology for a Francis spiral casing hydraulic design is presented in this paper. The methodology

APA, Harvard, Vancouver, ISO, and other styles

3

K, Arunesh Muthiah. "Comparative Study of Gravitational Water Vortex Turbine(GWVT) with Fibonaccian and Conical Casing." International Journal for Research in Applied Science and Engineering Technology 13, no. 6 (2025): 1704–11. https://doi.org/10.22214/ijraset.2025.72492.

Full text

Abstract:

A gravitational vortex turbine is an eco-friendly micro hydropower generation turbine that operates in ultra-low heads to provide energy in rural areas. Nowadays, the challenging aspects of conical casing vortex turbines are low efficiency and poor vortex dynamics. This paper focuses on a conceptual idea study that serves as a comparison of the results of a self-developed golden ratio spiral-based casing for an ultra-low head vortex turbine to a conical gravitational turbine using SolidWorks flow simulation. A six-blade rear turbine is used for the overall simulation. The turbine is placed at

APA, Harvard, Vancouver, ISO, and other styles

4

Komarudin, Udin, Iftika Philo, Nia Nuraeni, and Nissa Syifa Puspani. "Pipe Stress and Turbine Nozzle Load Analysis for HP Steam Inlet and MP Steam Extraction on Turbine Generator 51G201T Capacity 10MW." International Journal of Engineering & Technology 7, no. 4.33 (2018): 214. http://dx.doi.org/10.14419/ijet.v7i4.33.23562.

Full text

Abstract:

Thermal pipe expansion on the turbine greatly affects the performance of the turbine, mainly produces misalignment in turbines. The stress analysis on the pipe and the load on the nozzle is very important to ensure that the stress that occurs is still safe and the load that occurs on the nozzle is still below the allowable load. Field information is known, Steam type of 51-G-201-T, capacity 10 MW, total weighs 58 tons, weight casing 37 tons, which has been operating since July 1989, has been occur misalignment on turbines. Stress pipe and load analysis of turbine nozzles on the turbine using s

APA, Harvard, Vancouver, ISO, and other styles

5

Zhong, Wenyuan, Jiaqi Li, Zhongyu Yang, Yinli Feng, and Tao Sun. "A Numerical Study of Complex Impact Loads on Thin-Walled Casing of Aeroengine Considering Turbine Guide Vane Structure¹." Journal of Physics: Conference Series 2557, no. 1 (2023): 012025. http://dx.doi.org/10.1088/1742-6596/2557/1/012025.

Full text

Abstract:

Abstract As the main load-bearing component of the aero-engine system, the thin-walled casings have the characteristics of large size, complex structure, thin wall, and large area. In addition to the harsh working environment, it is necessary to study applicable preventive measures to contain high-energy fragments to ensure flight safety. The complex load formed by the axial impact and circumferential torsion exerted by the turbine rotor on the exhaust casing is studied, and the model includes the turbine rotor. By analyzing the deformation and energy dissipation of the exhaust casing in the c

APA, Harvard, Vancouver, ISO, and other styles

6

Marzec, Krzysztof. "Low-Pressure Turbine Cooling Systems." Encyclopedia 1, no. 3 (2021): 893–904. http://dx.doi.org/10.3390/encyclopedia1030068.

Full text

Abstract:

Modern low-pressure turbine engines are equipped with casings impingement cooling systems. Those systems (called Active Clearance Control) are composed of an array of air nozzles, which are directed to strike turbine casing to absorb generated heat. As a result, the casing starts to shrink, reducing the radial gap between the sealing and rotating tip of the blade. Cooling air is delivered to the nozzles through distribution channels and collector boxes, which are connected to the main air supply duct. The application of low-pressure turbine cooling systems increases its efficiency and reduces

APA, Harvard, Vancouver, ISO, and other styles

7

Bakic, Gordana, Vera Sijacki-Zeravcic, Milos Djukic, Bratislav Rajicic, and Marko Tasic. "Remaining life assessment of a high pressure turbine casing in creep and low cycle service regime." Thermal Science 18, suppl.1 (2014): 127–38. http://dx.doi.org/10.2298/tsci121219179b.

Full text

Abstract:

Thick walled components such as high pressure (HP) steam turbine casings operating under high parameter conditions are subjected to a complex stress state. As a result of that stress state, some parts of HP turbine casing undergo to the creep fatigue caused by the combination of thermal fatigue resulted from repeated start/stop operation and the creep which occurs during long-term operation at high temperature and high-pressure. It is well known that domestic thermal power plants have been in use over 100000 h which means that significant cost is required not only for maintenance, but often fo

APA, Harvard, Vancouver, ISO, and other styles

8

Matthias, Heinz-Bernd, Josef Prost, and Christian Rossegger. "Investigation of the Flow in Pelton Turbines and the Influence of the Casing." International Journal of Rotating Machinery 3, no. 4 (1997): 239–47. http://dx.doi.org/10.1155/s1023621x97000225.

Full text

Abstract:

At the institute for waterpower and pumps at the University of Technology Vienna we do a lot of research work observing the flow in the casing and the buckets of Pelton turbines. One interest of our research is to find criteria to estimate the influence of the splash water distribution in the casing on the turbine efficiency. Knowing the splash water distribution it is further possible to develop methods to provide visual documentation of the flow in and around the buckets from the beginning to the end of interaction.Our measurements have been done on a single jet Pelton turbine with a runner

APA, Harvard, Vancouver, ISO, and other styles

9

Tanino, Tadakazu, Ryo Yoshihara, and Takeshi Miyaguni. "A Study on a Casing Consisting of Three Flow Deflectors for Performance Improvement of Cross-Flow Wind Turbine." Energies 15, no. 16 (2022): 6093. http://dx.doi.org/10.3390/en15166093.

Full text

Abstract:

We investigated the effective use of cross-flow wind turbines for small-scale wind power generation to increase the output power by using a casing, which is a kind of wind-collecting device, composed of three flow deflector plates having the shape of a circular-arc airfoil. Drag-type vertical-axis wind turbines have an undesirable part of about half of the swept area where the inflow of wind results in low output performance. To solve this problem, we devised a casing consisting of three flow deflector plates, two of which were to block the unwanted inflow of wind and the remaining flow deflec

APA, Harvard, Vancouver, ISO, and other styles

10

Salem, Hayder, Adel Mohammedredha, and Abdullah Alawadhi. "High Power Output Augmented Vertical Axis Wind Turbine." Fluids 8, no. 2 (2023): 70. http://dx.doi.org/10.3390/fluids8020070.

Full text

Abstract:

Nowadays, wind energy is one of the most cost-effective and environmentally friendly energies in high demand due to shortages in fossil fuels and the necessity to reduce global carbon footprint. One of the main goals of wind turbine development is to increase the power output of the turbine either by increasing the turbine blade swept area or increasing the velocity of the wind. In this article, a proprietary augmentation system was introduced to increase the power output of vertical axis wind turbines (VAWT) by increasing the free stream velocity to more than two folds. The system comprises t

APA, Harvard, Vancouver, ISO, and other styles

11

M, Muas, Baso Nasrullah, Herdiman Herdiman, and Ahsan Muslimin. "Rancang Bangun Fixture Perakitan Runner dan Casing Turbin Cross Flow." Jurnal Sinergi Jurusan Teknik Mesin 17, no. 1 (2019): 70. http://dx.doi.org/10.31963/sinergi.v17i1.1595.

Full text

Abstract:

One of the important turbine components to consider in its manufacture is the runner and turbine casing components. The large number of parts that must be welded and the use of tools that do not meet functional requirements causes some problems during the assembly process, the problem is due to the difficulty of obtaining straightness between the disc and runner shaft where both components occur run-out deviations that exceed the allowable tolerance, as well as casing component assembly where almost all of the joints undergo a simple welding process and use of aids causing a very large dimensi

APA, Harvard, Vancouver, ISO, and other styles

12

Lian, Wenlei, Yunfei Jiang, Hao Chen, Yi Li, and Xianglei Liu. "Heat Transfer Characteristics of an Aeroengine Turbine Casing Based on CFD and the Surrogate Model." Energies 15, no. 18 (2022): 6743. http://dx.doi.org/10.3390/en15186743.

Full text

Abstract:

A good turbine casing cooling design should control the thermal stress and maintain a reasonable tip clearance between the turbine blade and the casing. Since the turbine inlet temperature has been increased yearly, the influence of thermal radiation on the temperature of a turbine casing has become more significant. Therefore, the heat transfer characteristics of a turbine casing considering the radiation effect need to be precisely predicted. In this study, a theoretical model is established for describing the heat transfer characteristics of a turbofan casing, and the model’s effectiveness

APA, Harvard, Vancouver, ISO, and other styles

13

Dambach, R., H. P. Hodson, and I. Huntsman. "1998 Turbomachinery Committee Best Paper Award: An Experimental Study of Tip Clearance Flow in a Radial Inflow Turbine." Journal of Turbomachinery 121, no. 4 (1999): 644–50. http://dx.doi.org/10.1115/1.2836716.

Full text

Abstract:

This paper describes an experimental investigation of tip clearance flow in a radial inflow turbine. Flow visualization and static pressure measurements were performed. These were combined with hot-wire traverses into the tip gap. The experimental data indicate that the tip clearance flow in a radial turbine can be divided into three regions. The first region is located at the rotor inlet, where the influence of relative casing motion dominates the flow over the tip. The second region is located toward midchord, where the effect of relative casing motion is weakened. Finally, a third region ex

APA, Harvard, Vancouver, ISO, and other styles

14

Abbasi, Sarallah, and Afshin Gholamalipour. "Parametric study of injection from the casing in an axial turbine." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 234, no. 5 (2019): 582–93. http://dx.doi.org/10.1177/0957650919877276.

Full text

Abstract:

Tip leakage flow reduces both efficiency and performance of axial turbines and damages turbine blades as well. Therefore, it is of great importance to identify and control tip leakage flow. This study investigated the effect of flow injection (from the casing), alongside flow structure, on turbine performance. Additionally, the effect of different injection parameters, including injection mass flow rate, angle, location, and diameter on the turbine performance are evaluated. A numerical analysis of the flow in a two-stage axial turbine was employed by using CFX software. To ensure the accuracy

APA, Harvard, Vancouver, ISO, and other styles

15

Gordon, J. L. "Hydraulic turbine efficiency." Canadian Journal of Civil Engineering 28, no. 2 (2001): 238–53. http://dx.doi.org/10.1139/l00-102.

Full text

Abstract:

A set of empirical equations has been developed which defines the peak efficiency and shape of the efficiency curve for hydraulic turbines as a function of the commissioning date for the unit, rated head, rated flow, runner speed, and runner throat or impulse turbine jet diameter. The equations are based on an analysis of peak efficiency data from 56 Francis, 33 axial-flow, and eight impulse runners dating from 1908 to the present, with runner diameters ranging from just under 0.6 m to almost 9.5 m. The metric specific speeds (nq) ranged from 5.3 to 294. The root mean square error of the calcu

APA, Harvard, Vancouver, ISO, and other styles

16

Tang, Jin, Yong Zhang, Ge Wang, and Weidong Ma. "Outer casing structure design for the trisection turbine wheel burst of the air turbine starter." PLOS ONE 19, no. 9 (2024): e0310013. http://dx.doi.org/10.1371/journal.pone.0310013.

Full text

Abstract:

The aviation regulations mandate that high-energy rotor components must possesses adequate containment capabilities. Ensuring the containment of the turbine wheel of the air turbine starter is of paramount importance. In this paper, the design thickness of the containment ring was determined and the containment ring deformation was given. Based on the design thickness and deformation of the containment ring, an outer casing structure design method was proposed by using FEM. Then, two containment tests were conducted for different distances between the containment ring and outer casing to valid

APA, Harvard, Vancouver, ISO, and other styles

17

Poursaeidi, E., M. Taheri, and A. Farhangi. "Non-uniform temperature distribution of turbine casing and its effect on turbine casing distortion." Applied Thermal Engineering 71, no. 1 (2014): 433–44. http://dx.doi.org/10.1016/j.applthermaleng.2014.07.019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Febriansyah, Dwijaya, Barman Tambunan, Rudias Harmadi, and Budi Noviyantoro Fadjrin. "PENGARUH PEMUAIAN PANAS TERHADAP KELURUSAN POROS TURBIN UAP." Majalah Ilmiah Pengkajian Industri 14, no. 1 (2020): 71–76. http://dx.doi.org/10.29122/mipi.v14i1.3971.

Full text

Abstract:

Sebagian besar penyebab kegagalan pada mesin-mesin rotasi termasuk turbin uap adalah poros yang berputar dalam kondisi misalignment. Pada turbin uap, panas yang merambat pada casing dapat merubah dimensi turbin uap karena adanya pemuaian (thermal growth) sehingga mempengaruhi kelurusan poros saat berputar. Nilai thermal growth ini perlu diketahui sebagai salah satu spesifikasi dalam penyetelan poros sebelum turbin beroperasi. Dalam studi ini, Â thermal growth pada turbin uap 3 MW diinvestigasi dengan mengukur kelurusan poros dalam kondisi panas setelah berhenti berputar dan dingin menggunakan

APA, Harvard, Vancouver, ISO, and other styles

19

Fei, Cheng-Wei, Guang-Chen Bai, Wen-Zhong Tang, and Yatsze Choy. "Optimum Control for Nonlinear Dynamic Radial Deformation of Turbine Casing with Time-Varying LSSVM." Advances in Materials Science and Engineering 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/680406.

Full text

Abstract:

With the development of the high performance and high reliability of aeroengine, the blade-tip radial running clearance (BTRRC) of high pressure turbine seriously influences the reliability and performance of aeroengine, wherein the radial deformation control of turbine casing has to be concerned in BTRRC design. To improve BTRRC design, the optimum control-based probabilistic optimization of turbine casing radial deformation was implemented using time-varying least square support vector machine (T-LSSVM) by considering nonlinear material properties and dynamic thermal load. First the T-LSSVM

APA, Harvard, Vancouver, ISO, and other styles

20

Cwiek, Janusz, Jerzy Łabanowski, Santina Topolska, and Maria Sozańska. "Determination of Failure Causes of a Steam Turbine Casing." Solid State Phenomena 183 (December 2011): 37–42. http://dx.doi.org/10.4028/www.scientific.net/ssp.183.37.

Full text

Abstract:

The paper presents results of research and failure analysis undertaken to determine failure causes of a steam turbine casing. After 130,000 hours of service the crack in a outer shell of the turbine casing was found. The inner shell of the casing was made of cast steel grade G21CrMoV5-7, and the outer shell of grade G20CrMo4-5. Following research were performed in order to determine causes of the casing failure: chemical analysis; microstructure examinations with the use of light microscope, scanning electron microscope (SEM); mechanical properties examinations using the Charpy impact test, an

APA, Harvard, Vancouver, ISO, and other styles

21

Chernousenko, Olga, Dmitriy Ryndyuk, and Vitaliy Peshko. "Re-Extension of 200 MW Turbine Cast Casing Service." Journal of Mechanical Engineering 22, no. 2 (2019): 14–20. http://dx.doi.org/10.15407/pmach2019.02.014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Shrestha, Ujjwal, and Young-Do Choi. "A CFD-Based Shape Design Optimization Process of Fixed Flow Passages in a Francis Hydro Turbine." Processes 8, no. 11 (2020): 1392. http://dx.doi.org/10.3390/pr8111392.

Full text

Abstract:

In recent times, optimization began to be popular in the turbomachinery field. The development of computational fluid dynamics (CFD) analysis and optimization technology provides the opportunity to maximize the performance of hydro turbines. The optimization techniques are focused mainly on the rotating components (runner and guide vane) of the hydro turbines. Meanwhile, fixed flow passages (stay vane, casing, and draft tube) are essential parts for the proper flow uniformity in the hydro turbines. The suppression of flow instabilities in the fixed flow passages is an inevitable process to ens

APA, Harvard, Vancouver, ISO, and other styles

23

Irasari, Pudji, Priyono Sutikno, Puji Widiyanto, and Qidun Maulana. "Performance Measurement of a Compact Generator - Hydro Turbine System." International Journal of Electrical and Computer Engineering (IJECE) 5, no. 6 (2015): 1252. http://dx.doi.org/10.11591/ijece.v5i6.pp1252-1261.

Full text

Abstract:

<p>This study aims to investigate the characteristic of a compact generator – hydro turbine system. The generator is of permanent magnet type and the turbine operates in a very low head. The integration of the two components is conducted in such a way that simplifies the construction of the conventional turbine generator. The method is by mounting the generator stator to the turbine casing and the permanent magnets are assembled in the perimeter of the turbine blade rotor. This simple construction is approached by making the stator from individual teeth and yoke. The permanent magnet gen

APA, Harvard, Vancouver, ISO, and other styles

24

Olga, Chernousenko, Rindyuk Dmitro, Peshko Vitaliy, and Goryazhenko Vladyslav. "DEVELOPMENT OF A TECHNOLOGICAL APPROACH TO THE CONTROL OF TURBINE CASINGS RESOURCE FOR SUPERCRITICAL STEAM PARAMETERS." Eastern-European Journal of Enterprise Technologies 2, no. 1 (92) (2018): 51–56. https://doi.org/10.15587/1729-4061.2018.126042.

Full text

Abstract:

A comprehensive model for evaluation of the resource of HPC of the turbine K-800-240-2, which includes calculation of thermal, stressed-strained state, cyclic and static damageability, is presented here. The numerical studies conducted with the use of modern methods of mathematical modeling showed a high impact of forces of pins’ tightening on the stressed-strained state of the casing elements (the stress level increased by 17.7 %). A technological approach to resource control, aimed at a change in pins’ tightening efforts, was proposed. It was established that this method dec

APA, Harvard, Vancouver, ISO, and other styles

25

Witek, Lucjan, Marek Orkisz, Piotr Wygonik, Daniel N. Musili, and Tadeusz Kowalski. "Fracture analysis of a turbine casing." Engineering Failure Analysis 18, no. 3 (2011): 914–23. http://dx.doi.org/10.1016/j.engfailanal.2010.11.005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Dunn, M. G., R. M. Adams, and V. S. Oxford. "Response of Large Turbofan and Turbojet Engines to a Short-Duration Overpressure." Journal of Engineering for Gas Turbines and Power 111, no. 4 (1989): 740–47. http://dx.doi.org/10.1115/1.3240321.

Full text

Abstract:

The influences of thrust setting and overpressure level on engine operating characteristics have been obtained for two different high-thrust engines. The thrust setting was varied from engine-off to take-off rated thrust (TRT) and the overpressure was varied from 6.9 kPa (1.0 psi) to 19.4 kPa (2.8 psi). The specific engines under consideration were the Pratt/Whitney TF33 low bypass ratio turbofan and the Pratt/Whitney J57 turbojet. The experimental results suggest that overpressure has little influence on either the HP compressor speed or the exhaust gas total temperature. However, the magnitu

APA, Harvard, Vancouver, ISO, and other styles

27

Simmons, H. R., A. J. Smalley, R. W. Frischmuth, G. Lapini, and G. Robinson. "Tools for Diagnosing Case Deflections and Alignment on a Power Utility Combustion Turbine." Journal of Engineering for Gas Turbines and Power 116, no. 1 (1994): 190–97. http://dx.doi.org/10.1115/1.2906791.

Full text

Abstract:

This paper discusses development, installation, and analysis of instrumentation systems for reliably measuring casing, thermal distortion, and alignment deviation on a large combustion turbine in power utility service. A variety of redundant measurement systems were installed to document casing distortion during the cooldown period after firing. The operating principles of each measurement system are described and presented with the rationale developed for installing and locating sensors. A vertical deflection sensor used for casing bow and bearing misalignment measurement is highlighted in th

APA, Harvard, Vancouver, ISO, and other styles

28

Becker, B., and B. Schetter. "Gas Turbines Above 150 MW for Integrated Coal Gasification Combined Cycles (IGCC)." Journal of Engineering for Gas Turbines and Power 114, no. 4 (1992): 660–64. http://dx.doi.org/10.1115/1.2906639.

Full text

Abstract:

Commercial IGCC power plants need gas turbines with high efficiency and high power output in order to reduce specific installation costs and fuel consumption. Therefore the well-proven 154 MW V94.2 and the new 211 MW V94.3 high-temperature gas turbines are well suited for this kind of application. A high degree of integration of the gas turbine, steam turbine, oxygen production, gasifier, and raw gas heat recovery improves the cycle efficiency. The air use for oxygen production is taken from the gas turbine compressor. The N2 fraction is recompressed and mixed with the cleaned gas prior to com

APA, Harvard, Vancouver, ISO, and other styles

29

Bajic´, Branko, and Andreas Keller. "Spectrum Normalization Method in Vibro-Acoustical Diagnostic Measurements of Hydroturbine Cavitation." Journal of Fluids Engineering 118, no. 4 (1996): 756–61. http://dx.doi.org/10.1115/1.2835506.

Full text

Abstract:

Full-scale vibro-acoustical diagnostic measurements of cavitation in four Francis 6 MW double runner turbines were performed. Two types of sensors were used—a hydrophone sensing waterborne noise at the pressure side of a runner and an accelerometer mounted at various points at the outer turbine casing, facing the runner’s pressure side. The correlation of noise and acceleration intensity with suction-side pressure fluctuations and runner position was checked. A simple but efficient method of spectrum normalization, which rejects the influence of the measurement set characteristics and vibro-ac

APA, Harvard, Vancouver, ISO, and other styles

30

Ao, Liang Bo, Yuan Sheng Li, Zhi Xun Wen, Lei Li, and Zhu Feng Yue. "Multidisciplinary Design Optimization Framework for Aeroengine Turbine Based on Life and Reliability." Advanced Materials Research 538-541 (June 2012): 2690–93. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.2690.

Full text

Abstract:

The multidisciplinary design optimization(MDO) framework for aeroengine turbine based on life and reliability which covers the total process is developed. The framework consists of three parts: design module of parts, subsystem and system. The parametric model and optimization of turbine components such as rotor, stator, disk, casing and axle, can be created in parts design module. The interaction in subsystems, such as rotor-stator interaction, blade-casing gap and tenon-mortise contact problem can be solved in subsystem design module. The system design module can give out the global optimal

APA, Harvard, Vancouver, ISO, and other styles

31

Danieli, Piero, Massimo Masi, Andrea Lazzaretto, and Gianluca Carraro. "An engineering approach for the fast simulation of radial inflow turbines with vaneless spiral casing by single-channel CFD models." E3S Web of Conferences 312 (2021): 11003. http://dx.doi.org/10.1051/e3sconf/202131211003.

Full text

Abstract:

The basic RANS-CFD analysis of the simplest radial-inflow turbine configuration is the subject of this paper. An original technique is here proposed to model the effect of the vaneless spiral casing using single-channel CFD calculations and providing an effective alternative to the more complex simulation of the 360-degree domain otherwise required to simulate this turbine configuration. The aim of the paper is to verify the effectiveness of the proposed modelling technique as a reliable engineering approach conceived to support the preliminary design phase of radial-inflow turbines with time-

APA, Harvard, Vancouver, ISO, and other styles

32

Gao, Jie, Xuezheng Liu, Xudong Zhao, Weiliang Fu, Guoqiang Yue, and Qun Zheng. "Steady and unsteady numerical investigation of flow interaction between low-pressure turbine blade, intermediate turbine duct and power turbine vane." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 232, no. 23 (2018): 4312–31. http://dx.doi.org/10.1177/0954406217751819.

Full text

Abstract:

Flows in an intermediate turbine duct connecting low-pressure turbines and power turbines are very complex, affected by the upstream low-pressure turbine flow structures. Non-uniformities originating from the duct with struts also affect the power turbine inflow conditions, resulting in reduced efficiency. The present investigation is done to clarify the flow and loss mechanisms within the intermediate turbine duct and the power turbine. Steady and unsteady numerical investigations of the flow interaction between low-pressure turbine blade, intermediate turbine duct and power turbine vane were

APA, Harvard, Vancouver, ISO, and other styles

33

Mathioudakis, K., E. Loukis, and K. D. Papailiou. "Casing Vibration and Gas Turbine Operating Conditions." Journal of Engineering for Gas Turbines and Power 112, no. 4 (1990): 478–85. http://dx.doi.org/10.1115/1.2906192.

Full text

Abstract:

The results from an experimental investigation of the compressor casing vibration of an industrial gas turbine are presented. It is demonstrated that statistical properties of acceleration signals can be linked with engine operating conditions. The power content of such signals is dominated by contributions originating from the stages of the compressor, while the contribution of the shaft excitation is secondary. Using nonparametric identification methods, accelerometer outputs are correlated to unsteady pressure measurements taken by fast response transducers at the inner surface of the compr

APA, Harvard, Vancouver, ISO, and other styles

34

Adhikari, Pradhumna, Umesh Budhathoki, Shiva Raj Timilsina, Saurav Manandhar, and Tri Ratna Bajracharya. "A Study on Developing Pico Propeller Turbine for Low Head Micro Hydropower Plants in Nepal." Journal of the Institute of Engineering 9, no. 1 (2014): 36–53. http://dx.doi.org/10.3126/jie.v9i1.10669.

Full text

Abstract:

Most of the turbines used in Nepal are medium or high head turbines. These types of turbines are efficient but limited for rivers and streams in the mountain and hilly region which have considerably high head. Low head turbines should be used in the plain region if energy is to be extracted from the water sources there. This helps in the rural electrification and decentralized units in community, reducing the cost of construction of national grid and also to its dependency, in already aggravated crisis situation. There are good turbine designs for medium to high heads but traditional designs f

APA, Harvard, Vancouver, ISO, and other styles

35

Kudinov, V. A., E. V. Kotova, O. Yu Kurganova, and V. K. Tkachev. "Experimental and Theoretical Research of a Hot Condition of High Pressure Cylinder of the T-100-130 Steam Turbine." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 62, no. 5 (2019): 459–68. http://dx.doi.org/10.21122/1029-7448-2019-62-5-459-468.

Full text

Abstract:

The results of experimental and theoretical studies of the temperature state of the high- pressure cylinder (HPC) of the T-100-130 steam turbine for one of the start modes are presented. Taking into account the dependence of the coefficient of linear expansion on the temperature, the elongations of the individual sections of the casing under different temperatures and its total elongation after the turbine operation starts to correspond to the stationary operation mode have been found. The studies have shown that in the process of actuation the turbine there is a significant difference in temp

APA, Harvard, Vancouver, ISO, and other styles

36

Zhang, Zongwei, Hao Chen, Cong Liu, and Qingkun Meng. "Effect of inlet conditions on the thermal insulation performance of marine gas turbine exhaust systems." Thermal Science, no. 00 (2024): 160. http://dx.doi.org/10.2298/tsci240206160z.

Full text

Abstract:

A marine gas turbine insulation solution was designed to reduce exhaust system temperatures. The effects of cooling gas temperature (45?C, 55?C, 65?C), cooling air velocity (2 m/s - 10 m/s), and a range of classic aerodynamic conditions ranging on the thermal insulation performance of the gas turbine exhaust system were investigated using numerical simulations. The results indicate that the use of aerogel insulation material effectively reduces the average temperature of the exterior volute casing to 71?C from 315?C under rated turbine conditions. The exterior volute casing temperature increas

APA, Harvard, Vancouver, ISO, and other styles

37

Putra, Fajri Dwi, Nota Effiandi, and Desmarita Leni. "Pengoperasian dan Perawatan PLTMH pada Pembangkit Listrik Mikro Hidro (PLTMH) di Sungai Batang Geringging Kota Padang." Jurnal Teknik Mesin 10, no. 2 (2019): 25–30. http://dx.doi.org/10.30630/jtm.10.2.183.

Full text

Abstract:

Water turbine is a tool to convert the potential energy of water into mechanical energy, this mechanical energy is then converted into electrical energy by a generator. Crossflow turbines are radial, small pressurized turbines with tangential injection from fan rotation with a horizontal shaft. The flow of water flows through the pipe entrance, and is arranged by a propeller and into the turbine fan rotation. After the water passes through the turbine fan rotation, the water is at the opposite fan rotation, thus providing additional efficiency. Finally, water flows from the casing either freel

APA, Harvard, Vancouver, ISO, and other styles

38

Hamzah, Mohd Herzwan, and Azri Alias. "Heat Propagation Across Turbocharger Unit with Variable Turbine Inlet Temperature." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 122, no. 2 (2024): 102–17. http://dx.doi.org/10.37934/arfmts.122.2.102117.

Full text

Abstract:

Currently, issues about emission gains serious attention among the lawmakers and governments. Multiple regulation and enforcements have been applied to reduce the level of emission that released to the environment. Vehicle emissions have been identified as one of the major polluters thus forcing the carmakers to explore new technology to reduce the vehicle emissions. One of the technologies that have been preferred by the carmakers is the applications of forced induction system to the internal combustion engine. By using the forced induction system where currently turbocharger system is more o

APA, Harvard, Vancouver, ISO, and other styles

39

Gordon, J. L. "Hydroelectric turbine setting – a rational approach." Canadian Journal of Civil Engineering 18, no. 1 (1991): 27–35. http://dx.doi.org/10.1139/l91-004.

Full text

Abstract:

There are no standards for the setting of a hydraulic turbine with respect to the tailwater level. Manufacturers rely on hydraulic model data to determine the required protection against cavitation, and never publish these data. Utilities and consultants must then rely on the interpretation of published statistical data relating submergence to various turbine parameters. In this paper, an alternative approach is proposed wherein a general equation is developed relating the submergence of a stainless steel or cast steel runner to the number of runner blades, the plant capacity factor, the turbi

APA, Harvard, Vancouver, ISO, and other styles

40

Price, John W. H. "The failure of the Dartmouth turbine casing." International Journal of Pressure Vessels and Piping 75, no. 7 (1998): 559–66. http://dx.doi.org/10.1016/s0308-0161(98)00048-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Antar, E., and M. Elkhoury. "Casing optimization of a Savonius wind turbine." Energy Reports 6 (February 2020): 184–89. http://dx.doi.org/10.1016/j.egyr.2019.08.040.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

CHOI, WOOSUNG, and JUNGSEOB HYUN. "A LIFE ASSESSMENT FOR STEAM TURBINE CASING USING INELASTIC ANALYSIS." Modern Physics Letters B 22, no. 11 (2008): 1141–46. http://dx.doi.org/10.1142/s0217984908015978.

Full text

Abstract:

An important characteristic of a fossil power plant is its ability to maintain reliability and safety of the plant against frequent start-ups and load changes. Unstable states arising during start-ups, shutdowns and load changes give rise to unsteady temperature distribution with time in steam turbine innercasing (HP/IP), which results in non-uniform strain and stress distribution. The rapid increase of temperature during starts-ups, especially, causes susceptible to failure and reduction of expected life for steam turbine components. Thus accurate knowledge of thermal stresses is required for

APA, Harvard, Vancouver, ISO, and other styles

43

Kalashnikov, D. A., A. S. Pugachuk, E. O. Kalashnikova, and A. V. Chernyshev. "Analysis of Methods for Reducing Power Losses in the Compressor Impeller when Balancing the Turbine Generator Rotor at the Operating Speed." Proceedings of Higher Educational Institutions. Маchine Building, no. 2 (731) (February 2021): 26–33. http://dx.doi.org/10.18698/0536-1044-2021-2-26-33.

Full text

Abstract:

The article considers the problems of performing full-scale tests, including balancing the rotors of the gas turbine engines together with body parts. Since during balancing it is necessary to distance the natural frequency of the oscillatory system as much as possible from the test imbalance frequency, it is recommended to balance at the operating frequencies of the rotor without stator parts forming the flow path of the compressor and turbine stages. Therefore, when testing or balancing, large power is required for performing the work of air ventilation, as well as the work against viscous f

APA, Harvard, Vancouver, ISO, and other styles

44

Kim, Jae Hoon, Duck Hoi Kim, Kyoung Joo Kim, Woo Sung Sim, Young Shin Lee, and Won Shik Park. "The Study on Failure Behavior and Low Cycle Fatigue Life of Hot Gas Casing for Gas Turbine." Key Engineering Materials 353-358 (September 2007): 499–502. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.499.

Full text

Abstract:

In this study, failure behavior of hot gas casing for gas turbine was investigated. The microstructure and damage mechanism of serviced hot gas casing were examined. Also low cycle fatigue tests of the Inconel 617 super alloy is used for structural material of hot gas casing were performed. To predict the low cycle fatigue life, Coffin-Manson and strain energy density methods were used.

APA, Harvard, Vancouver, ISO, and other styles

45

Chana, Kam S., and Terry V. Jones. "An Investigation on Turbine Tip and Shroud Heat Transfer." Journal of Turbomachinery 125, no. 3 (2003): 513–20. http://dx.doi.org/10.1115/1.1575253.

Full text

Abstract:

Detailed experimental investigations have been performed to measure the heat transfer and static pressure distributions on the rotor tip and rotor casing of a gas turbine stage with a shroudless rotor blade. The turbine stage was a modern high pressure Rolls-Royce aero-engine design with stage pressure ratio of 3.2 and nozzle guide vane (ngv) Reynolds number of 2.54E6. Measurements have been taken with and without inlet temperature distortion to the stage. The measurements were taken in the QinetiQ Isentropic Light Piston Facility and aerodynamic and heat transfer measurements are presented fr

APA, Harvard, Vancouver, ISO, and other styles

46

Turner, M. G. "Multistage Turbine Simulations With Vortex–Blade Interaction." Journal of Turbomachinery 118, no. 4 (1996): 643–53. http://dx.doi.org/10.1115/1.2840920.

Full text

Abstract:

The average passage approach of Adamczyk et al. (1990) has been used to simulate the multistage environment of the General Electric E3 low-pressure turbine. Four configurations have been analyzed and compared to test data. These include the nozzle only, the first stage, the first stage and a half, and the first two stages. A high casing slope on the first-stage nozzle causes the secondary flow vortex to separate off the casing and enter the downstream rotor. The detrimental effect on performance due to this vortex interaction has been predicted by the above approach, whereas isolated blade row

APA, Harvard, Vancouver, ISO, and other styles

47

Todorov, Georgi, Ivan Kralov, Konstantin Kamberov, Evtim Zahariev, Yavor Sofronov, and Blagovest Zlatev. "An Assessment of the Embedding of Francis Turbines for Pumped Hydraulic Energy Storage." Water 16, no. 16 (2024): 2252. http://dx.doi.org/10.3390/w16162252.

Full text

Abstract:

In this paper, analyses of Francis turbine failures for powerful Pumped Hydraulic Energy Storage (PHES) are conducted. The structure is part of PHES Chaira, Bulgaria (HA4—Hydro-Aggregate 4). The aim of the study is to assess the structure-to-concrete embedding to determine the possible causes of damage and destruction of the HA4 Francis spiral casing units. The embedding methods that have been applied in practice for decades are discussed and compared to those used for HA4. A virtual prototype is built based on the finite-element method to clarify the influence of workloads under the generator

APA, Harvard, Vancouver, ISO, and other styles

48

Choi, Young Jin, Young Shin Lee, Jae Hoon Kim, Won Shik Park, and Hyun Soo Kim. "A Study on the Flow and Thermal Stress Analysis of the Hot Gas Casing of the Gas Turbine." Key Engineering Materials 306-308 (March 2006): 169–74. http://dx.doi.org/10.4028/www.scientific.net/kem.306-308.169.

Full text

Abstract:

The hot gas casing of the gas turbine has operated in high temperatures and thermal gradients. The structure safety of hot gas casing will be highly depend on the thermal stress. In this paper, flow and thermal stress analysis of the hot gas casing is carried out using ANSYS program. The obtained temperature data by flow analysis of hot gas casing is applied to the load condition of the thermal analysis. The thermal stress analysis is carried out the elastic-plasticity analysis. The pressure, temperature and velocity of the flow and thermal stress of the hot gas casing are presented

APA, Harvard, Vancouver, ISO, and other styles

49

Mahto, Navin, and Satyanarayanan R. Chakravarthy. "Comparison of Response Surface Based Preliminary Design Methodologies for a Gas Turbine Combustor." Defence Science Journal 74, no. 2 (2024): 216–24. http://dx.doi.org/10.14429/dsj.74.19624.

Full text

Abstract:

Preliminary design of gas turbine combustor is a multi-objective optimization problem. The methodology to be used at the preliminary design stage depends on the freedom of design choices available. In this article, we explore three preliminary design methodologies for gas turbine combustor - M1: combustion liner design for a given casing; M2: combustion liner design without the casing and M3: coupled design of combustion liner and casing. A workflow for the automated design space exploration of gas turbine combustor using response surface methodology is presented. Computational fluid dynamics

APA, Harvard, Vancouver, ISO, and other styles

50

Balakumar., C., Chandrasekhar U., and Chandra Mohana Reddy B. "Assessment of Mechanical Design Parameters for an Aero Gas Turbine Engine Jet Pipe Casing using Finite Element Analysis." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 5 (2020): 1197–201. https://doi.org/10.35940/ijeat.E1072.069520.

Full text

Abstract:

Aero Gas Turbine engines power aircrafts for civil transport application as well as for military fighter jets. Jet pipe casing assembly is one of the critical components of such an Aero Gas Turbine engine. The objective of the casing is to carry out the required aerodynamic performance with a simultaneous structural performance. The Jet pipe casing assembly located in the rear end of the engine would, in case of fighter jet, consist of an After Burner also called as reheater which is used for thrust augmentation to meet the critical additional thrust requirement as demanded by the combat envir

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!