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Relevant bibliographies by topics / Seal performance in turbines

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Academic literature on the topic 'Seal performance in turbines'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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Journal articles on the topic "Seal performance in turbines"

1

Jahn, Ingo HJ. "Design approach for maximising contacting filament seal performance retention." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 229, no. 5 (2014): 926–42. http://dx.doi.org/10.1177/0954406214541433.

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Good sealing is a key requirement for modern efficient turbomachinery such as steam and gas turbines. A class of seals that promise better performance, compared to conventional labyrinth seals, are contacting filament seals such as brush, leaf, or finger seal. When new, these filament seals offer better performance; however, if poorly designed they wear excessively, resulting in leakages higher than a comparable labyrinth seal. This paper outlines a design methodology for selecting ideal contacting filament seal properties for a given operating cycle or set of operating cycles. Following this

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Schädler, Rainer, Anestis I. Kalfas, Reza S. Abhari, Gregor Schmid, Tilmann auf dem Kampe, and Sanjay B. Prabhu. "Novel high-pressure turbine purge control features for increased stage efficiency." Journal of the Global Power and Propulsion Society 1 (July 21, 2017): 68MK5V. http://dx.doi.org/10.22261/68mk5v.

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AbstractRim seals throttle flow and have shown to impact the aerodynamic performance of gas turbines. The results of an experimental investigation of a rim seal exit geometry variation and its impact on the high-pressure turbine flow field are presented. A one-and-a-half stage, unshrouded and highly loaded axial turbine configuration with 3-dimensionally shaped blades and non-axisymmetric end wall contouring has been tested in an axial turbine facility. The exit of the rotor upstream rim seal was equipped with novel geometrical features which are termed as purge control features (PCFs) and a b

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Reggentin, Philip, Jens Friedrichs, Johan Flegler, and Ivan McBean. "INVESTIGATION OF A NOVEL PRESSURE-ACTUATED BRUSH SEAL UNDER HOT STEAM CONDITIONS." Journal of the Global Power and Propulsion Society 4 (April 1, 2020): 14–26. http://dx.doi.org/10.33737/jgpps/117858.

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Due to the increasing demand towards flexible operation of conventional power plants also the seals of their turbines have to adapt to varying loads. Based on the basic design of a clamped brush seal, a novel seal with a pressure-actuated backplate is introduced which is capable of combining the advantages of low and high inclined brush seals while avoiding their undesired properties for flexible operation. During preliminary investigations on a test rig operated with compressed air and without rotation, the functionality of the improved design was demonstrated. It is shown that the leakage ma

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ENACHE, Marius, Razvan CARLANESCU, Andreea MANGRA, Florin FLOREAN, and Radu KUNCSER. "Investigation of Flow through a Labyrinth Seal." INCAS BULLETIN 13, no. 2 (2021): 51–58. http://dx.doi.org/10.13111/2066-8201.2021.13.2.6.

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Growing performance requirements for gas turbines have led to a continuous increase in gas temperature and pressure ratios. Together with the resulting increase in cooling flows, this requires more and more minimization and control of internal gas leaks. To meet future performance goals, the application of a new seal design and an improved understanding of leakage flow characteristics are of particular importance. The air mass flow through a labyrinth seal designed for a low-pressure turbine has been determined both through analytical calculus and CFD modeling. Different radial clearances and

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Ma, Dengqian, Jun Li, Yuanqiao Zhang, Zhigang Li, Xin Yan, and Liming Song. "Application of blade tip shroud brush seal to improve the aerodynamic performance of turbine stage." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 234, no. 6 (2019): 777–94. http://dx.doi.org/10.1177/0957650919883153.

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The blade tip shroud brush seal is applied to replace the labyrinth seal for the aerodynamic performance improvement of turbine stage. The leakage flow characteristics of the brush seal are numerically predicted by using the Reynolds-Averaged Navier–Stokes equations and non-linear Darcian porous medium model. The numerical leakage flow rate of the brush seal is in well agreement with the experimental data. The last and first long teeth of the labyrinth seal were designed to bristle pack named as the postposed and preposed brush seals based on the 1.5 turbine stage. The leakage flow rate and ae

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Kluka, J. A., and D. G. Wilson. "Low-Leakage Modular Regenerators for Gas-Turbine Engines." Journal of Engineering for Gas Turbines and Power 120, no. 2 (1998): 358–62. http://dx.doi.org/10.1115/1.2818130.

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One of the significant problems plaguing regenerator designs is seal leakage resulting in a reduction of thermal efficiency. This paper describes the preliminary design and analysis of a new regenerative heat-exchanger concept, called a modular regenerator, that promises to provide improved seal-leakage performance. The modular regenerator concept consists of a ceramic-honeycomb matrix discretized into rectangular blocks, called modules. Separating the matrix into modules substantially reduces the transverse sealing lengths and substantially increases the longitudinal sealing lengths as compar

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Soulas, Thomas, and Luis San Andres. "A Bulk Flow Model for Off-Centered Honeycomb Gas Seals." Journal of Engineering for Gas Turbines and Power 129, no. 1 (2002): 185–94. http://dx.doi.org/10.1115/1.2227031.

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A computational analysis for prediction of the static and dynamic forced performance of gas honeycomb seals at off-centered rotor conditions follows. The bulk-flow analysis, similar to the two-control volume flow model of Kleynhans and Childs (1997, “The Acoustic Influence of Cell Depth on the Rotordynamic Characteristics of Smooth-Rotor/Honeycomb-Stator Annular Gas Seals,” ASME J. Eng. Gas Turbines Power, 119, pp. 949–957), is brought without loss of generality into a single-control volume model, thus simplifying the computational process. The formulation accommodates the honeycomb effective

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Xi, Jinxiang, and David L. Rhode. "Rotordynamics of Turbine Labyrinth Seals with Rotor Axial Shifting." International Journal of Rotating Machinery 2006 (2006): 1–11. http://dx.doi.org/10.1155/ijrm/2006/93621.

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Rotors in high-performance steam turbines experience a significant axial shifting during starting and stopping processes due to thermal expansion, for example. This axial shifting could significantly alter the flow pattern and the flow-induced rotordynamic forces in labyrinth seals, which in turn, can considerably affect the rotor-seal system performance. This paper investigates the influence of the rotor axial shifting on leakage rate as well as rotordynamic forces in high-low labyrinth seals over a range of seal clearances and inlet swirl velocities. A well-established CFD-perturbation model

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Dinc, Saim, Mehmet Demiroglu, Norman Turnquist, et al. "Fundamental Design Issues of Brush Seals for Industrial Applications." Journal of Turbomachinery 124, no. 2 (2002): 293–300. http://dx.doi.org/10.1115/1.1451847.

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Advanced seals have been applied to numerous turbine machines over the last decade to improve the performance and output. Industrial experiences have shown that significant benefits can be attained if the seals are designed and applied properly. On the other hand, penalties can be expected if brush seals are not designed correctly. In recent years, attempts have been made to apply brush seals to more challenging locations with high speed (>400 m/s), high temperature (>650 °C), and discontinuous contact surfaces, such as blade tips in a turbine. Various failure modes of a brush seal can b

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Du, Qiuwan, and Di Zhang. "Numerical Investigation on Flow Characteristics and Aerodynamic Performance of a 1.5-Stage SCO2 Axial-Inflow Turbine with Labyrinth Seals." Applied Sciences 10, no. 1 (2020): 373. http://dx.doi.org/10.3390/app10010373.

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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 this paper, a 1.5-stage SCO2 axial-inflow turbine is established and labyrinth seals are arranged on the top of the first stage stator and rotor blades. The effects of seal clearance, groove on seal cavity surface and circle groove shape on flow characteristics and aerodynamic performance under different pressure ratio are investigated. Increasi

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Dissertations / Theses on the topic "Seal performance in turbines"

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Dadkhah, S. "Ingestion and sealing performance of rim seals in rotor-stator wheelspaces." Thesis, University of Sussex, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328303.

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Marie, Hazel. "A STUDY OF NON-CONTACTING PASSIVE-ADAPTIVE TURBINE FINGER SEAL PERFORMANCE." University of Akron / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=akron1134587932.

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Bonet, Mathias Usman. "Techno-environmental assessment of marine gas turbines for the propulsion of merchant ships." Thesis, Cranfield University, 2011. http://dspace.lib.cranfield.ac.uk/handle/1826/7386.

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This research study seeks to evaluate the techno-economic and environmental implications of a variety of aero-derivative marine gas turbine cycles that have been modelled for the propulsion of different types of merchant ships. It involves the installation and operation of gas turbine propulsion systems in different marine environmental conditions and aims to evaluate the effect of the aerodynamic and hydrodynamic variations expected to be encountered by these ships when they navigate across different climates and oceans along selected fixed trade routes. A combination of simulation tools deve

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Kline, Sara E. "An Investigation of the Performance of Compliant Finger Seals for use in Gas Turbine Engines using Navier-Stokes and Reynolds Equation Based Numerical Models and Experimental Evaluation." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1478984223281402.

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Leahy, Mark John. "Detecting seal-to-rotor rubs within steam turbines : the suitability of acoustic emission monitoring." Thesis, Cranfield University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.539403.

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Green, T. "Effect of external flow on the sealing performance of rotor-stator rim seals." Thesis, University of Sussex, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358187.

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Zhang, Zijun. "Performance optimization of wind turbines." Diss., University of Iowa, 2012. https://ir.uiowa.edu/etd/3024.

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Improving performance of wind turbines through effective control strategies to reduce the power generation cost is highly desired by the wind industry. The majority of the literature on performance of wind turbines has focused on models derived from principles versed in physics. Physics-based models are usually complex and not accurate due to the fact that wind turbines involve mechanical, electrical, and software components. These components interact with each other and are subjected to variable loads introduced by the wi

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Eastwood, Daniel. "Investigation of rim seal exchange and coolant re-ingestion in rotor stator cavities using gas concentration techniques." Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/48875/.

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Gas turbine engine performance requires effective and reliable internal cooling over the duty cycle of the engine. Understanding the effectiveness of cooling flows when making life predictions for rotating components subject to the main gas path temperatures is crucial. A test facility has been developed at the University of Sussex incorporating a two stage turbine designed to support a European funded research project with the objective of enhancing the understanding of interactions between main annulus gas paths and secondary air systems. This thesis describes the specific contribution of th

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Milne, Terence Ian. "Towards a performance related seal design method for Bitumen and modified road seal binders." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/856.

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Thesis(PhD (Civil Engineering))-- University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: Bitumen based road surfacing seals and asphalt wearing courses have been used by society's Engineers "to counter the damage to the existing unsurfaced roadways by the newly developed automobile with its rubber driving wheels" since the early 1900's. Early experiments were conducted with both tar and bitumen to find a suitable material to alleviate the situation, and ongoing research has been carried out through the past century and into the new millennium, throughout the world, examining improvements, fro

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Jones, Geoffrey B. "Performance modelling of windmilling gas turbines." Thesis, Cranfield University, 2002. http://dspace.lib.cranfield.ac.uk/handle/1826/8747.

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This thesis presents work carried out with the aim of improving the modelling of windmilling in gas turbine performance. The work also examines the phenomenon of relight. Methods of representing the performance of the turbomachinery components are investigated and recommendations are made for the use of a number of non- dimensional variables on which to map turbomachinery performance. A performance model was built using the turbomachinery characteristics proposed in order to test the robustness of the representations. The model was written in Fortran 90 and coupled directly to a spreadsheet pa

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Books on the topic "Seal performance in turbines"

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Hendricks, Robert C. Straight cylindrical seal for high-performance turbomachines. National Aeronautics and Space Administration, Scientific and Technical Information Office, 1987.

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Hendricks, Robert C. Straight cylindrical seal for high-performance turbomachines. National Aeronautics and Space Administration, Scientific and Technical Information Office, 1987.

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Hendricks, Robert C. Three-step cylindrical seal for high-performance turbomachines. Lewis Research Center, 1987.

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Hendricks, Robert C. Three-step cylindrical seal for high-performance turbomachines. National Aeronautics and Space Administration, Scientific and Technical Information Office, 1987.

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Hendricks, Robert C. Three-step cylindrical seal for high-performance turbomachines. National Aeronautics and Space Administration, Scientific and Technical Information Office, 1987.

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Hendricks, Robert C. Brush seal performance and durability issues based on T-700 engine test results. National Aeronautics and Space Administration, 1994.

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7

Walsh, Philip P. Gas turbine performance. Blackwell Science, 1998.

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Walsh, Philip P. Gas turbine performance. Blackwell Science, 1998.

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9

Ciafone, Donna J. Gas turbines: technology, efficiency, and performance. Nova Science Publisher's, 2011.

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10

Milne, Michael. Contracts under seal and performance bonds. Chartered Institute of Building, 1993.

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Book chapters on the topic "Seal performance in turbines"

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Anker, Jan E., Jürgen F. Mayer, and Heinz Stetter. "Computational Study of the Flow in an Axial Turbine with Emphasis on the Interaction of Labyrinth Seal Leakage Flow and Main Flow." In High Performance Computing in Science and Engineering ’01. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-56034-7_35.

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Wood, David. "Starting and Low Wind Speed Performance." In Small Wind Turbines. Springer London, 2011. http://dx.doi.org/10.1007/978-1-84996-175-2_6.

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Sant, Tonio, Robert N. Farrugia, and David Arroyo López-Carro. "Coupling Floating Wind Turbines with Large- Scale Air-Conditioning Systems Through Deep Sea Water Pumping: Case Studies of System Performance in European Deep Waters." In Renewable Energy in the Service of Mankind Vol I. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17777-9_83.

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Madhlopa, Amos. "Economic Performance of Solar Gas Turbines." In Principles of Solar Gas Turbines for Electricity Generation. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-68388-1_8.

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Stamatis, A. G., and K. D. Papailiou. "Using HPC in gas turbines blade fault diagnosis." In High-Performance Computing and Networking. Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/bfb0031575.

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Kwon, Soon-Duck, Seung-Ho Lee, and Han Kyu Lee. "Aerodynamic performance of bridges equipped small wind turbines." In Dynamics of Bridges, Volume 5. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9825-5_9.

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Zibo, Ye, Huang Xing, and Liang Rongguang. "Sealing Performance and Wear Mechanism of PTFE Oil Seal." In Advanced Tribology. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03653-8_90.

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Lei, Junjie, Meihong Liu, Xiangping Hu, Junfeng Sun, and Yuchi Kang. "Analysis of Wear Performance of Two Finger Seal Structure." In Lecture Notes in Electrical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6318-2_36.

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Mathew, Sathyajith, Geetha Susan Philip, and Chee Ming Lim. "Analysis of Wind Regimes and Performance of Wind Turbines." In Advances in Wind Energy Conversion Technology. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-540-88258-9_2.

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Goudarzi, Navid. "Computational Fluid Dynamics Methods for Wind Turbines Performance Analysis." In Advanced Wind Turbine Technology. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-78166-2_2.

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Conference papers on the topic "Seal performance in turbines"

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Sangan, Carl M., James A. Scobie, J. Michael Owen, Gary D. Lock, Kok Mun Tham, and Vincent P. Laurello. "Performance of a Finned Turbine Rim Seal." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25626.

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In gas turbines, rim seals are fitted at the periphery of the wheel-space between the turbine disc and its adjacent casing; their purpose is to reduce the ingress of hot mainstream gases. A superposed sealant flow, bled from the compressor, is used to purge the wheel-space or at least dilute the ingress to an acceptable level. The ingress is caused by the circumferential variation of pressure in the turbine annulus radially outward of the seal. Engine designers often use double rim seals where the variation in pressure is attenuated in the outer wheel-space between the two seals. This paper de

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Jahn, Ingo H. J. "Maximizing Contacting Filament Seal Performance Retention." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94261.

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The initial superior performance of contacting filament seals compared to traditional seals such as labyrinth seals has been well reported in the literature. A challenge that remains for these seals is ensuring that this performance advantage is retained throughout their operating life, especially if there is uncertainty in the operating cycle. In the current paper, a seal model based on generic seal characteristics is used to explore the relationships between these characteristics, the seal performance, and the seal performance retention. Using this approach seal characteristics are identifie

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Schwarz, H., J. Friedrichs, and J. Flegler. "Design Parameters of Brush Seals and Their Impact on Seal Performance." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68956.

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Brush seals, which were originally designed for gas turbine applications, have been successfully applied to large-scale steam turbines within the past decade. From gas turbine applications, the fundamental behavior and designing levers are known. However, the application of brush seals to a steam turbine is still a challenge. This challenge is mainly due to the extreme load on the brush seal while operating under steam. Furthermore, it is difficult to test brush seals under realistic conditions, i.e. under live steam conditions with high pressure drops. Due to these insufficiencies, 2 test rig

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Herrmann, N., K. Dullenkopf, and H. J. Bauer. "Flexible Seal Strip Design for Advanced Labyrinth Seals in Turbines." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95424.

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The paper discusses the potential benefit of flexible seal strips in labyrinth seals for turbines. By reducing the radial stiffness compared to a standard straight and stiff knife, seal clearance could be reduced without significantly reducing the seal durability and long-term performance. As contact between the seal strips and the rotor can occur especially during transient operating phases, a more flexible design of the seal strips can prevent damage and wear, keeping the discharge rates constantly low. However, the pressure difference across the fin will cause a deflection of the seal strip

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Kuwamura, Yoshihiro, Kazuyuki Matsumoto, Hidekazu Uehara, Hiroharu Ooyama, Yoshinori Tanaka, and Shin Nishimoto. "Development of New High-Performance Labyrinth Seal Using Aerodynamic Approach." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94106.

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As key technologies to improve the performance of steam turbines, various types of high performance seal, such as active clearance control (ACC) seals and leaf seals, have been developed by Mitsubishi Heavy Industries, LTD (MHI). Moreover, a new seal concept has also been developed, which remarkably reduces the leakage flow through the blade tip/base clearance by using an aerodynamic approach. The main concept of this technology is to control and utilize the vortex structure in the cavities of the labyrinth seal by optimizing the cavity geometry. In the optimized geometry, locally-controlled f

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Neef, Matthias, Erik Sulda, Norbert Su¨rken, and Jan Walkenhorst. "Design Features and Performance Details of Brush Seals for Turbine Applications." In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-90404.

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Adaptive and contacting seals such as brush seals have been successfully applied to turbomachinery for several years. In large steam turbine applications, however, various challenges still persist. Special focus is directed at the long-term performance and longevity of brushes on conventional spring-backed seal segments in steam turbines. This issue is particularly related to wear during startup conditions. This paper discusses the results of wear tests, derived from simulated transient turbine behavior, where the resultant seal leakage under steady state conditions is monitored. It is shown t

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Hajmrle, Karel, Petr Fiala, Anthony P. Chilkowich, and Lawrence T. Shiembob. "Abradable Seals for Gas Turbines and Other Rotary Equipment." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-53865.

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Abradable seals are typically used in compressors of aircraft and industrial gas turbines to decrease clearance between the stator casing and rotor blade tips, and hence, to increase compressor efficiency and decrease fuel consumption. The abradable seal concept originally developed for aircraft gas turbine applications is presently applied to other types of rotary equipment such as steam turbines and turbochargers. Among the most important variables influencing the choice of abradables for a particular section of a gas turbine are: application temperature, material of the rubbing element (tit

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Deo, Hrishikesh V., Ajay Rao, and Hemant Gedam. "Compliant Plate Seals: Design and Performance Simulations." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-69348.

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Compliant Plate Seals are being developed for various turbomachinery sealing applications including gas turbines, steam turbines, aircraft engines and oil & gas compressors. These seals consist of compliant plates attached to a stator in a circumferential fashion around a rotor. The compliant plates have a slot that extends radially inwards from the seal outer diameter, and an intermediate plate extends inwards into this slot from stator. This design is capable of providing passive hydrostatic feedback forces acting on the compliant plates that balance at a small tip–clearance. Due to this

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Rai, Aakash C., Deoras Prabhudharwadkar, Sunil Murthy, Andrew Giametta, and David Johns. "Effect of Air-Curtains on Labyrinth Seal Performance." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-57188.

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Labyrinth seals are used in many key sealing locations in gas turbines to control various leakage flows, e.g., to control the secondary air-flow from the compressor (bypassing the combustor), the turbine inter-stage leakages and blade tip leakages. This study was performed to assess the improvement in the performance of a labyrinth seal by using an air-curtain (cross-flow jet(s)) from the stator. Detailed parametric studies were performed to study the effect of the air-curtain jet pressure, location, and the number of jets on the seal performance with respect to the leakage flow. The analysis

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Giovannetti, Iacopo, Manuele Bigi, Massimo Giannozzi, Dieter R. Sporer, Filippo Cappuccini, and Marco Romanelli. "Clearance Reduction and Performance Gain Using Abradable Material in Gas Turbines." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-50290.

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An improvement in the energy efficiency of industrial gas turbines can be accomplished by developing abradable seals to reduce the stator/rotor gap to decrease the tip leakage flow of gases in the hot gas components of the turbine. “ABRANEW” is a project funded by the European Commission aimed at developing a high temperature abradable material capable of controlled abrasion and resistant to erosion and oxidation. In order to define the basic parameters such as the component shape, the existing gap, the expected gap reduction, the seal thickness and other geometric parameters, a comprehensive

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Reports on the topic "Seal performance in turbines"

1

Wu, K. C. Performance of RHIC Refrigerator II: Turbines. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/1119225.

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Montgomery, Sharlan R., and John E. Haddock. Fog Seal Performance on Asphalt Mixture Longitudinal Joints. Purdue University, 2018. http://dx.doi.org/10.5703/1288284316572.

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Lee, Jusang, Todd Shields, and Hyung Jun Ahn. Performance Evaluation of Seal Coat Materials and Designs. Purdue University Press, 2011. http://dx.doi.org/10.5703/1288284314619.

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Sherwood, Larry. Final Report - Certifying the Performance of Small Wind Turbines. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1252708.

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Siegel, Jerome, and Oleg Lyamin. Continuous Performance in the Fur Seal: A Bridge to Extended Waking in Humans. Defense Technical Information Center, 2007. http://dx.doi.org/10.21236/ada490788.

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BRONOWSKI, DAVID R. Performance testing of elastomeric seal materials under low and high temperature conditions: Final report. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/756442.

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LOBITZ, DONALD W., PAUL S. VEERS, G. RICHARD EISLER, DAVID J. LAINO, PAUL G. MIGLIORE, and GUNJIT BIR. The Use of Twist-Coupled Blades to Enhance the Performance of Horizontal Axis Wind Turbines. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/783086.

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Deng, Z., T. J. Carlson, G. R. Ploskey, and M. C. Richmond. Evaluation of blade-strike models for estimating the biological performance of large Kaplan hydro turbines. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/1218139.

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Deng, Zhiqun, Thomas J. Carlson, Gene R. Ploskey, and Marshall C. Richmond. Evaluation of Blade-Strike Models for Estimating the Biological Performance of Large Kaplan Hydro Turbines. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/877059.

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Peterson, E. W., P. L. Lagus, and K. Lie. Fluid flow measurements of Test Series A and B for the Small Scale Seal Performance Tests. Office of Scientific and Technical Information (OSTI), 1987. http://dx.doi.org/10.2172/5697691.

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