Relevant bibliographies by topics / Penstocks

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Penstocks'

Author: Grafiati
Published: 4 June 2021
Last updated: 2 February 2022

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Journal articles on the topic "Penstocks"

1

Liu, Jing Min, Lu Feng Yang, Jin Zhang, and Wei Zhang. "Stress Resultant Analysis of Steel Penstocks Using a Flat Shell Element." Applied Mechanics and Materials 170-173 (May 2012): 1887–92. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.1887.

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A finite element procedure of a four-node rectangular flat shell element (FSE) is programmed for structural analysis of steel penstocks. The influence of axial constraint and support settlement on the internal forces of the steel penstocks is investigated. It can be concluded that the FSE is suitable for thin shell structures of steel penstocks and can achieve satisfying accuracy. The axial constraint caused by rest piers would remarkably increase the axial internal forces along pipeline, while the influence of support settlement on the internal forces of the steel penstock is limited, and so
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Nazirul Mubin Zahari, Mohd Hafiz Zawawi, Fei Chong Ng, et al. "Finite Volume Method Numerical Modelling of the Penstock Flows in Dam Intake Sector Subjected to Varying Operating Conditions with Particle Image Velocimetry Validation." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 86, no. 1 (2021): 176–86. http://dx.doi.org/10.37934/arfmts.86.1.176186.

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The formation of vortex and swirling in any flow structures of the hydropower dam is undesirable, as it reduced the performance of turbine as well as lowered the efficiency of hydroelectric power generation. Furthermore, it could lead to the hydraulic losses at the entrance of power intakes, the blockage at the trash racks due to entrain debris and the reduction of the working life of turbines. This paper studied penstocks flows in the dam intake section numerically. The dynamics of penstocks flows at different operating conditions were analyzed to determine the vortex formation. To access the
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Don, Z. R., Q. F. Zhao, C. C. Song, and T. Y. P. Chang. "Nonlinear Analysis of Steel Liner—Reinforced Concrete Penstocks." Journal of Pressure Vessel Technology 112, no. 1 (1990): 57–64. http://dx.doi.org/10.1115/1.2928588.

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This paper is concerned with the nonlinear structural responses of steel liner-reinforced concrete penstocks of a concrete dam subjected to an internal pressure. The study reported herein consists of three major parts: 1) testing of two large penstock specimens, 2) a quasi-analytical solution for preliminary design, and 3) a detailed nonlinear finite element analysis. Each of the three parts are described in the paper with some detail. The quasi-analytical solution, although limited in geometric modeling, can give reasonable predictions on the overall deformation behavior and the ultimate fail
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Pigg, Stacy Leigh. "The Penstocks." Roadsides 002 (August 2019): 5–13. http://dx.doi.org/10.26034/roadsides-20190022.

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Su, Kai, He Gao Wu, and Qian Xiang. "Numerical Analysis of the Bifurcation Embedded in Anchor Block of a Certain PowerStation." Applied Mechanics and Materials 90-93 (September 2011): 2705–11. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.2705.

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The 3-D numerical model of bifurcation embedded in anchor block concrete of a diversion type power station is built. And FEM is adopted to analyze the pipe stresses and displacement. The influence of initial gap along the penstock outside, concrete’s crack status of anchor block and deformation modulus of the bed rock is discussed. Some conclusions can be achieved as follows. Safe factor is enough when the exposed-penstock design scheme is adopted. But enough rebar is required to guarantee the integrity of anchor block. The initial gap, concrete’s crack and the deformation modulus of bed rock
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Humphries, R. W., and L. T. Jory. "Underground design at Andekaleka Hydroelectric Development." Canadian Geotechnical Journal 22, no. 1 (1985): 25–31. http://dx.doi.org/10.1139/t85-004.

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Andekaleka Hydroelectric Development, Republic of Malagasy (Madagascar), comprises an 8 m high intake dam, a 4 km long unlined power tunnel, a surge shaft, a concrete-lined penstock, four steel-lined branch penstocks, an underground powerhouse, and a 0.5 km long tailrace tunnel. The scheme develops a 235 m fall in the Vohitra River. Two 29 MW Francis turbines have been installed, with space left for two more identical units.This paper describes the geotechnical aspects of the underground design for the scheme. The predominant rock type is good quality granitic gneiss, which required minimal un
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Jian-Guo, Hou, An Xu-Wen, and He Ying-Min. "Comments on Design Methods of Penstocks." Journal of Pressure Vessel Technology 126, no. 3 (2004): 391–98. http://dx.doi.org/10.1115/1.1763930.

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This paper selects several representative penstocks codes of hydropower stations in China and foreign countries including USBR Standards (1970), ASCE Steel Penstocks (1993), Japanese Technical Standards for Gates and Penstocks (1993), the former USSR’s code My 34 747-76 and Π 780-83, and Chinese code DL/T 5141-2001; analyzes and compares their different design methods and corresponding safety levels. In addition, the probabilistic limit state design method adopted in DL/T 5141-2001 is described emphatically. What are described can be taken as reference by the engineering technicians who are en
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Wang, Bifei, Yuewei Li, Wenqiang Qi, and Qihang Wang. "Study on calculation method of stability for embedded penstocks with stiffener ring under external pressure." E3S Web of Conferences 272 (2021): 02010. http://dx.doi.org/10.1051/e3sconf/202127202010.

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A three-dimensional FEM(finite element model)is established, including penstocks with initial defect (ovality), backfill concrete, drainage cushion and surrounding rock. The nonlinear static calculation of the model is carried out. The stability of penstocks with backfill concrete, drainage cushion and surrounding rock under external pressure is studied. The sensibility of the embedded penstocks to initial defect, initial gap and elastic modulus of drainage cushion is analyzed. The results of finite element method, Jacobsen method and strength formula in SL281 are compared and analyzed. The re
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Méndez, Fidencio. "Aguamilpa underground penstocks — excavation phase." Canadian Journal of Civil Engineering 21, no. 4 (1994): 585–95. http://dx.doi.org/10.1139/l94-060.

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The Aguamilpa hydroelectric project is one of a number of hydroelectric schemes currently being constructed along the course of the Santiago River in western Mexico. Aguamilpa, with a total cost of $750 million U.S., is a 960 MW installation scheduled for operation by October 1993. As the most important plant in the complex, Aguamilpa qualifies as one of the more spectacular engineering construction jobs of the decade in Mexico. The facility is composed of a complex set of tunnels, including the underground penstocks, the powerhouse and surge chamber caverns, the tailrace tunnel, and temporary
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Hori, Masayuki, Takayuki Nimura, Masamichi Miura, et al. "Development of an Inspection Robot for Penstocks." Journal of Robotics and Mechatronics 2, no. 5 (1990): 373–83. http://dx.doi.org/10.20965/jrm.1990.p0373.

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An inspection robot has been developed jointly with the Electric Power Development Co. for the purpose of inspecting the corrosion and coating deterioration of penstocks (3500 to 5000mm) for electric power generation, particularly their sloping sections. This robot is a simplified device which, equipped with a centering apparatus consisting of cylinders, travels in a spiral fashion by pressing its wheels along the surface of a pipe, and is capable of propelling itself to climb the sloping sections of penstocks after passing through their bends and reducers. After testing with penstocks and twi
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Dissertations / Theses on the topic "Penstocks"

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Adal, Birand. "Use Of Air Chambers Against Waterhammer In Penstocks." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613520/index.pdf.

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All pipeline systems are susceptible to water hammer that can cripple critical infrastructure. One effective method to relieve excessive waterhammer pressures in pipelines is to use air chambers. This study aims to develop an empirical procedure for the quick analysis of penstock-turbine systems to determine dimensions and operating conditions of air-chambers that can effectively diminish the transient phenomena after sudden changes of flow rate in the system. A numerical study has been carried out by obtaining repeated solutions for variable system parameters using a commercial software. The
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Bernard, Dominic. "Numeric Modelling of Water Hammer Effects in Penstocks." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24127.

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Water hammer represents a complex hydraulic phenomenon with significant consequences on the proper functioning and safety of operation for pipe and conduit systems. The complexity and intricate physics of water hammer translated into significant difficulties associated firstly, with finding a proper solution for understanding the mechanism of its occurrence and, secondly, relating to proposing technically and economically viable design methods and devices that would help reduce and mitigate water hammer effects. In this context, the present thesis deals with the numerical modeling of the trans
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Calamak, Melih. "Investigation Of Waterhammer Problems In The Penstocks Of Small Hydropower Plants." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612407/index.pdf.

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Waterhammer is an unsteady hydraulic problem which is commonly found in closed conduits of hydropower plants, water distribution networks and liquid pipeline systems. Due to either a malfunction of the system or inadequate operation conditions, pipeline may collapse or burst erratically resulting in substantial damages, and human losses in some cases. In this thesis, time dependent flow situations in the penstocks of small hydropower plants are investigated. A software, HAMMER, that utilizes method of characteristics for solving nonlinear differential equations of transient flow is used in the
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Dincer, Ali Ersin. "Investigation Of Waterhammer Problems In The Penstocks Of Pumped-storage Power Plants." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615452/index.pdf.

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Waterhammer is an undesirable event, caused by sudden flow changes in a confined pipe system. When it occurs, its consequences can be very costly and even sometimes deadly. In general, it may be encountered in the penstocks of hydropower plants, water transmission lines, water networks, etc. Therefore, the operation guidelines of the hydropower plants should be defined correctly. In this thesis, waterhammer problems in pumped storage hydropower plants are investigated. Time dependent flow conditions in the penstocks are studied by the help of computer software, HAMMER. The software solves nonl
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Mansoor, Sa'ad. "Behaviour and operation of pumped storage hydro plants." Thesis, Bangor University, 2000. https://research.bangor.ac.uk/portal/en/theses/behaviour-and-operation-of-pumped-storage-hydro-plants(c1905e46-af51-444a-b85b-f2ee7ad1b598).html.

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The thesis describes the development of a generic nonlinear computer model of a pumped storage hydroelectric scheme. The model combines the hydraulic, electrical and control systems. In particular, this model includes the water hammer effects, the hydraulic coupling in the common water supply tunnel, the power system stiffness and the electrical coupling between the generator and the power system. The benefit of the simulation is that it gives insight into the plant characteristics and improves understanding of the physical phenomena involved. A specific case of the model for Dinorwig power st
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Hrubý, Erik. "Metoda tlak-čas pro stanovení průtoku na velkých vodních dílech." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318148.

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The aim of this master thesis is to explain using of the pressure-time method, commonly known as Gibson’s method for non-stationary discharge evaluation through water machineries. The thesis included the principle of this method, deriving the method and the problems, which happened in thanks of using this method. In the second part of this thesis are in details shown results of non-stationary discharge by pressure-time method and also there is the computation of the kinetic member on the resulting discharge. Next part is about refinement of this method by evaluation Penstock factor for each se
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Teuteberg, B. H. "Design of a pump-as-turbine microhydro system for an abalone farm." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4400.

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ENGLISH ABSTRACT: This document details the design process of a 97 kW microhydro system for Roman Bay Sea Farm in Gansbaai in the Western Cape Province of South Africa. It contains a literature study of microhydro power, with a focus on the use of Pump-as-Turbine technology and direct-drive systems. The literature study leads to several possible concepts for the project, which are then evaluated and the most suitable design is found to be a reverse running pump that powers a different pump through a direct drive system. Experimental data from KSB is used to test the accuracy of various c
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Školník, Martin. "Studie přečerpávací vodní elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372130.

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This master’s thesis deals with the feasibility study of the pumped-storage hydropower plant. Design is divided at three parts – upper water-reservoir with water intake, penstock with cabel tunnel and mechanical room with four Francis reversible turbine. Study contains engineering report, hydraulic calculations, photodocumentation and drawing documentation.
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Prado, Victor. "Desenvolvimento de um aplicativo em CAD para auxiliar o processo de fabricação em produtos de caldeiraria para hidrelétricas." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/18/18135/tde-01022016-162903/.

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O planejamento da fabricação de peças de caldeiraria para hidrelétricas tais como caixa espiral, tubo de sucção e conduto forçado, necessita de bons conhecimentos em caldeiraria e muita experiência na área devido à complexidade dos cálculos, tornando-se uma tarefa trabalhosa e com muitas possibilidades de erros. A seqüência de operações, no entanto, é altamente repetitiva facilitando o desenvolvimento de um sistema computacional de apoio. O trabalho proposto a seguir tem como objetivo apresentar um sistema desenvolvido como um aplicativo em software CAD para auxiliar as tarefas de proj
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Sundberg, Sebastian, and Tobias Amsköld. "Inspektionsmetoder för inre vattenvägar i vattenkraftverk." Thesis, KTH, Betongbyggnad, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-170015.

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Den svenska vattenkraften står för nästan 50 % av landets elproduktion vilket gör dess konstruktioner till en viktig del av samhällets infrastruktur. För att ett vattenkraftverk ska fungera effektivt och säkert ställs höga krav på komponenternas funktion och kondition. I dagsläget genomförs därför rutinmässiga kontroller på, i och runt dessa anläggningar. För de aggregatnära inre vattenvägarna genomförs detta ca vart åttonde år i samband med reparationer av turbinerna, vilka då måste tömmas på vatten. För till- och utloppstunnlarna, som ofta är drivna i berg, finns det dock inte några sådana r
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Books on the topic "Penstocks"

1

American Society of Civil Engineers. Task Committee on Steel Penstock Design, ed. Steel penstocks. American Society of Civil Engineers, 2012.

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ASCE Task Committee Manual of Practice for Steel Penstocks., ed. Steel penstocks. ASCE, 1993.

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American Society of Civil Engineers. Task Committee on Guidelines for Aging Penstocks., ed. Guidelines for evaluating aging penstocks. American Society of Civil Engineers, 1995.

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American Society of Civil Engineers. Task Committee on Inspection and Monitoring of In-Service Penstocks., ed. Guidelines for inspection and monitoring of in-service penstocks. American Society of Civil Egineers, 1998.

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The 2006-2011 World Outlook for Fabricated Steel Plate Pipe, Penstocks, Tunnel Lining, Stacks, and Breeching. Icon Group International, Inc., 2005.

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Parker, Philip M. The 2007-2012 World Outlook for Fabricated Steel Plate Pipe, Penstocks, Tunnel Lining, Stacks, and Breeching. ICON Group International, Inc., 2006.

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Gidravlicheskie poteri na trenie v vodovodakh ėlektrostant͡s︡iĭ. Ėnergoatomizdat, 1985.

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Penstock Canyon. Dagmar Miura, 2018.

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Book chapters on the topic "Penstocks"

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Harvey, Adam. "7. Penstocks; Materials; Penstock Jointing; Valves; Penstocks – Sizing and Costing." In Micro-Hydro Design Manual. Practical Action Publishing, 1993. http://dx.doi.org/10.3362/9781780445472.007.

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Harvey, Adam. "8. Penstocks – Supports and Anchors." In Micro-Hydro Design Manual. Practical Action Publishing, 1993. http://dx.doi.org/10.3362/9781780445472.008.

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Tibau, Guilherme, Erik Gutenwik, Maurício Santana, and Pierre Jean Pellegri. "Serra da Mesa project, Brazil: excavation of shafts and penstocks." In Tunnelling’ 94. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2646-9_41.

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Zheng, Shengyi, Guangming Yang, and Shifeng Xia. "Safety Inspection and Evaluation of Steel Penstocks in Hydroelectric Stations." In Advances in Water Resources and Hydraulic Engineering. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89465-0_325.

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Özaslan, Tolga, Shaojie Shen, Yash Mulgaonkar, Nathan Michael, and Vijay Kumar. "Inspection of Penstocks and Featureless Tunnel-like Environments Using Micro UAVs." In Springer Tracts in Advanced Robotics. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-07488-7_9.

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Edzham, O., and L. Jansen. "Visual Inspection of Penstocks and Water Tunnels for Hydropower Plants in Malaysia." In Water Resources Development and Management. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-1971-0_3.

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Shankar, A. N., Imran Hussain, and S. C. Gupta. "Anchorage System for Penstocks—Case Study of Champawat Town Pumping Water Supply Scheme." In Springer Transactions in Civil and Environmental Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-32-9956-6_1.

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Rodríguez, Luis, and Teodoro Sánchez. "Penstock." In Designing and Building Mini and Micro Hydro Power Schemes. Practical Action Publishing, 2011. http://dx.doi.org/10.3362/9781780440552.008.

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Kono, Yukio, Takahiro Sugano, and Yukihito Sugai. "Analysis of Penstock Fracture by Water Hammer." In Pipeline Systems. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-017-2677-1_14.

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Sur, Suchintya Kumar. "Fabrication and Erection of Steel Structure and Penstock." In A Practical Guide to Construction of Hydropower Facilities. CRC Press, 2019. http://dx.doi.org/10.1201/9781351233279-15.

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Conference papers on the topic "Penstocks"

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Lattouf, Dominic, and B. P. Huynh. "Flow Across a Butterfly Valve in a Dam Penstock." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71322.

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Butterfly valves are typically used as emergency closure devices in dam penstocks; these valves must be capable of closing if a penstock bursts. This paper summarizes a 3D CFD (Computational Fluid Dynamics) study that was conducted on the water flow across a sizable butterfly valve (1.6m in diameter) in a dam penstock with 57m of water head. The main aim is to determine the maximum torque required to close the valve. Thus semi steady flow conditions across the valve at various degrees of closure were investigated and the corresponding torque calculated. A maximum torque of about 87 700 N-m has
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Zihou Yuan and Yichen Yuan. "Calculation of structure coefficient in design of penstocks as subentry coefficient." In 2011 International Conference on Multimedia Technology (ICMT). IEEE, 2011. http://dx.doi.org/10.1109/icmt.2011.6003368.

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Mattson, Richard A., and Charles S. Ahlgren. "Nondestructive Examination of Steel Liners and Penstocks to Ascertain Structural Integrity." In Waterpower Conference 1999. American Society of Civil Engineers, 1999. http://dx.doi.org/10.1061/40440(1999)30.

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Ajenjo, Antoine, Emmanuel Ardillon, Vincent Chabridon, Scott Cogan, and Emeline Sadoulet-Reboul. "Robustness Evaluation of Reliability Assessments of Penstocks using Info-Gap Method." In Proceedings of the 29th European Safety and Reliability Conference (ESREL). Research Publishing Services, 2020. http://dx.doi.org/10.3850/978-981-14-8593-0_5804-cd.

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Cordoba, Alejadro Tapia, Alvaro Rodriguez del Nozal, Daniel Gutierrez Reina, and Pablo Millan Gata. "A Genetic Algorithm To Optimize Penstocks For Micro-Hydro Power Plants." In 2021 IEEE Congress on Evolutionary Computation (CEC). IEEE, 2021. http://dx.doi.org/10.1109/cec45853.2021.9504994.

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Ozaslan, Tolga, Kartik Mohta, James Keller, et al. "Towards fully autonomous visual inspection of dark featureless dam penstocks using MAVs." In 2016 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS). IEEE, 2016. http://dx.doi.org/10.1109/iros.2016.7759734.

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Mochizuki, Masahito, and Tomoya Kawabata. "Effect of Undermatched Weld on Deformation and Brittle Fracture Behaviors in High-Tensile Strength Steel Plate Welded Joint." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78813.

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High tensile strength steel such as 950 MPa class is used in hydropower plant components due to its lower cost and higher reliability. This steel is already used for penstocks in the Kanna-gawa and Omaru-gawa hydropower plants in Japan. Proper welding is one of the most critical factors to ensure integrity of the plant components against brittle fracture from weld defects. For example, preheat- and interpass-temperature controls are essential to avoid weld defects and to ensure strength, since the weld process induces residual stress and possible weld deformations such as angular distortion or
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Palatka, Petr. "Highly Efficient Renewal of A Hydropower Plant Pipe Coating." In Offshore Technology Conference. OTC, 2021. http://dx.doi.org/10.4043/30997-ms.

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Abstract Many pumped storage hydropower plants have long large diameter steep steel pipes (penstocks) between reservoirs. The coating inside such pipes protects the surface from corrosion. Lifetime of the coating is limited and it has to be renewed several times during expected lifetime of the hydropower plant. The coating renovation was a manual process until now. A modification of the process is proposed. The modification of the process includes changes in the technological steps as well robotization of these steps. The new process provides more stability in the quality of coating and elimin
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Galindo-Garci´a, Iva´n F., Antonio Tavira-Mondrago´n, and Sau´l Rodri´guez-Lozano. "A Hydroelectric Plant Simulation Model to Test the Performance of Actual Governor Control Systems." In ASME 2008 Power Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/power2008-60152.

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A simulation model of the hydraulic system of a hydroelectric power plant is developed and implemented in a real time simulator. The main purpose of the simulator is to test the performance of actual governor control systems using hardware-in-the-loop techniques, in which the actual governor control system is connected to a real time simulator instead of being connected to real equipment. This paper focuses on the modeling of the hydraulic system to be implemented in the simulator. The model consists of an unrestricted reservoir, conduits to transport water, and a turbine to convert the potent
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João Maria Marra, Liliana Madalena Gramani, Christian Wendt dos Santos, and Eloy Kavisky. "HYDRAULIC TRANSIENTS IN PENSTOCKS: COMPARISON OF RESULTS OF THE SOLUTION USING RUNGE-KUTTA AND METHOD OF CHARACTERISTICS APPLIED IN THE HYDRAULIC CIRCUIT OF THE TURBINES OF THE ITAIPU POWERPLANT." In 23rd ABCM International Congress of Mechanical Engineering. ABCM Brazilian Society of Mechanical Sciences and Engineering, 2015. http://dx.doi.org/10.20906/cps/cob-2015-2490.

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Reports on the topic "Penstocks"

1

Report on siphon penstocks for hydroelectric projects. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/5658277.

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Report on siphon penstocks for hydroelectric projects. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/7248319.

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