Relevant bibliographies by topics / Turbo expanders

Contents

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

Academic literature on the topic 'Turbo expanders'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Turbo expanders"

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Adams, Jacob, Nathaniel O’Connor, Matthew Jones, and John Brisson. "Experimental improvements to the acoustic expander with applications to cryogenic refrigeration." IOP Conference Series: Materials Science and Engineering 1327, no. 1 (2025): 012146. https://doi.org/10.1088/1757-899x/1327/1/012146.

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Abstract The acoustic expander is an innovative cryogenic component that uses pressure waves for work transfer as part of a continuous flow, recuperative cycle refrigerator. This expander uses passive reed-valves coupled to an acoustic resonator to produce refrigeration. The passive reed-valves are pressure-controlled by the imposed, static pressure difference across the expander and the natural oscillating pressure in the resonator. The resonator is a series of tubes and cones. The practical implications of these simple components are that the acoustic expander does not require controlled val
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Fermoselli, N. E. G. "PREDICTING THE IMPACT OF A FCC TURBO EXPANDER ON PETROLEUM REFINERIES." Revista de Engenharia Térmica 9, no. 1-2 (2010): 40. http://dx.doi.org/10.5380/reterm.v9i1-2.61929.

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Implementing a turbo expander connected to a fluid catalytic cracking (FCC) unit in order to produce power from flue gas has already become a common practice in oil refineries worldwide. Despite of recovering energy which used to be wasted in an orifice chamber, the implementation of expander and its skids still requires high investment, which often begins with a third-stage cyclones installation to enhance flue gas cleanness. Moreover, machine and also pipes need to be made with special materials in order to resist high temperatures and erosion. Hence, there are some items to be checked befor
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Antipenkov, B. A., A. B. Davydov, A. Sh Kobulashvili, G. A. Perestoronin, and A. A. Fal'chenko. "Turbo-expanders for mobile air separation equipment." Chemical and Petroleum Engineering 21, no. 3 (1985): 125–27. http://dx.doi.org/10.1007/bf01154881.

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Adams, Jacob L., and J. G. Brisson. "Acoustic expanders for use in recuperative cryocoolers." IOP Conference Series: Materials Science and Engineering 1301, no. 1 (2024): 012134. http://dx.doi.org/10.1088/1757-899x/1301/1/012134.

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Abstract An acoustic expander has been developed for use in recuperative cryocoolers. The acoustic expander uses reed-valves to generate a standing acoustic wave from a continuously expanding flow. The mechanical energy from the wave is passively dissipated to the ambient environment. The acoustic expander does not require complex moving parts or control mechanisms at low-temperature; in contrast to piston- or turbo-expanders that require moving displacers or spinning shafts. This expander has demonstrated isentropic expansion efficiencies of 50% for a pressure ratio of 1.4 and expansion effic
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Martyanov, O. A., and V. I. Merkulov. "Overview of the problem of moist air flow in turbo-expanders." Izvestiya MGTU MAMI 8, no. 4-1 (2014): 51–55. http://dx.doi.org/10.17816/2074-0530-67673.

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Ke, Changlei, Lianyou Xiong, Nan Peng, et al. "Efficiency Improvement of Small Cryogenic Helium Turbo-expanders in TIPC." IOP Conference Series: Materials Science and Engineering 1301, no. 1 (2024): 012028. http://dx.doi.org/10.1088/1757-899x/1301/1/012028.

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Abstract An experimental helium liquefier/refrigerator, using ultra high speed cryogenic turbo-expanders is designed and developed in Technical Institute of Physics and Chemistry (TIPC), and liquefaction rate of around 42 L/hr and refrigeration capacity of around 130 W @ 4.5 K is achieved. The turbo-expander constitutes the most critical component of a helium liquefier/refrigerator causing that the turbine efficiency has a great influence on the performance of the whole cryogenic process plant. Inlet Flow Radial (IFR) turbine design is dictated by criteria like velocity ratios. For small flow
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NAKAYAMA, Yoshihiro, Tetsuro MATSUMOTO, and Sadao SATO. "Cool-down characteristics of helium liquefier with turbo-expanders." TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 23, no. 1 (1988): 23–29. http://dx.doi.org/10.2221/jcsj.23.23.

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Barmby, T. H., and A. Cleveland. "Control Systems for Turbo Expanders in Pressure Reduction Service." Journal of Engineering for Gas Turbines and Power 113, no. 2 (1991): 296–99. http://dx.doi.org/10.1115/1.2906562.

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Kitt, S. R., and B. D. Rose. "Foothills Decompression/Recompression Facilities—Unique Power Recovery Application in Gas Pipelines." Journal of Engineering for Gas Turbines and Power 116, no. 1 (1994): 143–51. http://dx.doi.org/10.1115/1.2906783.

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Foothills Pipe Lines Ltd. is the Canadian sponsor of the Alaska Natural Gas Transportation System (ANGTS), a pipeline project selected in Canada and the United States as the means for transporting Alaskan gas reserves to the lower 48 United States. Currently, certain Prebuild portions of the ANGTS are in operation delivering Canadian gas to U. S. markets. A recent system expansion of the Eastern Leg Prebuild to accommodate increased Canadian gas exports entailed the construction of Decompression/Recompression facilities at Empress, Alberta to enable high-pressure operation of the Foothills pip
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Renuke, Avinash, Alberto Traverso, and Matteo Pascenti. "Experimental Campaign Tests on a Tesla Micro-Expanders." E3S Web of Conferences 113 (2019): 03015. http://dx.doi.org/10.1051/e3sconf/201911303015.

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This paper presents the experimental campaign on Tesla turbo expanders carried out at Thermo-chemical Power group (TPG) of University of Genoa, Italy. An experiment system is established using compressed air as a working fluid. A 200 W turbine is tested with rotational speed up to 40000 rpm. Experimental analysis focused mainly on the efficiency features of this expander, showing the impact on performance of different disk gaps, disk thickness, discharge holes, exhaust geometry, as a function of speed and mass flow. An improved version of 3 kW air Tesla turboexpander is built. Preliminary expe
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Dissertations / Theses on the topic "Turbo expanders"

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Gabrielli, Paolo. "Design and optimization of turbo-expanders for organic rankine cycles." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/6829/.

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In a world focused on the need to produce energy for a growing population, while reducing atmospheric emissions of carbon dioxide, organic Rankine cycles represent a solution to fulfil this goal. This study focuses on the design and optimization of axial-flow turbines for organic Rankine cycles. From the turbine designer point of view, most of this fluids exhibit some peculiar characteristics, such as small enthalpy drop, low speed of sound, large expansion ratio. A computational model for the prediction of axial-flow turbine performance is developed and validated against experimental data. Th
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Zou, Aihong. "Uncertainty quantification in high-density fluid radial-inflow turbo-expanders and diffusers for renewable low-grade temperature cycles." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/128481/1/Aihong_Zou_Thesis.pdf.

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This research investigated the radial-inflow turbo-expander, the conical diffuser, and the annular-radial diffuser using high-density working fluid in typical renewable energy power system. This study highlights the need to achieve a high performance of a whole radial-inflow turbine including a radial-inflow turbo-expander and a new designed annular-radial diffuser in order to improve overall energy conversion efficiency, which is critical to further development of renewable power solutions.
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Alshammari, Fuhaid. "Radial turbine expander design, modelling and testing for automotive organic Rankine cycle waste heat recovery." Thesis, Brunel University, 2018. http://bura.brunel.ac.uk/handle/2438/16007.

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Since the late 19th century, the average temperature on Earth has risen by approximately 1.1 °C because of the increased carbon dioxide (CO2) and other man-made emissions to the atmosphere. The transportation sector is responsible for approximately 33% of the global CO2 emissions and 14% of the overall greenhouse gas emissions. Therefore, increasingly stringent regulations in the European Union require CO2 emissions to be lower than 95 gCO₂/km by 2020. In this regard, improvements in internal combustion engines (ICEs)must be achieved in terms of fuel consumption and CO2 emissions. Given that o
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Nayak, Asutosh. "Development of design software for Cryogenic Turbo Expander." Thesis, 2010. http://ethesis.nitrkl.ac.in/1641/1/thesis10603004.pdf.

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This thesis provides the complete designing procedures encapsulated in an object oriented programming. The software is written in C++codes and gives the detail design of each component of the cryogenic turbo expander. The design procedure is complied in a very systematic manner due to the work of various person in this typical region. The thesis begins with the introduction of a Turbo expander. It contains the literature review which states the work done by various person with passage of time. The anatomy of turbo expander provides the complete picture and the understanding basics of each par
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Senthooran, Ravikumar. "Computational Fluid Flow analysis in Cryogenic Turbo expander." Thesis, 2014. http://ethesis.nitrkl.ac.in/5765/1/110ME0647-7.pdf.

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Cryogenic turbo expander is one of the components used in cryogenic plant to achieve low temperature refrigeration. Basic components in cryogenic Turbo expander are Turbine wheel, brake Compressor, shaft, nozzle, Thrust bearing, Journal Bearing etc. In expansion Turbine Temperature of gases decreases due to expansion and produces coldest level of Refrigeration. This project is all about Computational Fluid flow analysis of high speed rotating turbine. This involves with the three dimensional analysis of flow through a radial expansion turbine, using nitrogen as flowing fluid. Cfd packages, Bla
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Behera, Ranjit. "CFD Analysis of Aerostatic Bearing for Cryogenic Turbo-Expander." Thesis, 2016. http://ethesis.nitrkl.ac.in/8369/1/2016_MT_214M85442_RBehera.pdf.

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Expansion turbine plays the major role in any cryogenic plants like helium and hydrogen liquefier,air separation plants and low temperature refrigerator.These turbines run at speed around 50,000 to 5,00,000 rpm.At such a high speed no bearing is feasible to support the load except gas bearing.In gas bearing there is no physical contact between stator and rotor takes place so the friction between the stator and rotor is negligible.Because of this the rotor can move smoothly inside the stator.Hence aerostatic bearing used for achieving high accuracy and precession. Due to cleanness of aerostatic
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talluri, lorenzo. "Micro turbo expander design for small scale ORC: Tesla turbine." Doctoral thesis, 2019. http://hdl.handle.net/2158/1153897.

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Over the last years, the increase in energy consumption coupled with ever more stringent regulations on pollutants emissions and the massive advent of renewables in the energy market, have promoted the development of distributed energy systems and thus of an increasing interest towards small and micro power generation systems. In this context, the ORC progressively became the leading technology in the field of low size energy conversion systems (<100 kW) and low temperature applications (<150°C). Nonetheless, this technology still deserves further developments, especially regarding the design
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Book chapters on the topic "Turbo expanders"

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Yang, Jintang, Jiaohua Shi, Gongfa Li, Zhaohui Xia, Shiyang Zhou, and Wen Chen. "Design and Realization of Turbo-expander Control System." In Lecture Notes in Electrical Engineering. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19706-2_50.

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Ino, N., A. Machida, K. Ttsugawa, et al. "Development of High Expansion Ratio Helium Turbo Expander." In Advances in Cryogenic Engineering. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3368-9_9.

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Kato, T., Y. Kamiyauchi, E. Tada, et al. "Development on a Large Helium Turbo-Expander with Variable Capacity." In Advances in Cryogenic Engineering. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3368-9_8.

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Izumi, H., S. Harada, K. Matsubara, and S. Saito. "Development of Small Size Claude Cycle Helium Refrigerator with Micro Turbo-Expander." In Advances in Cryogenic Engineering. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-2213-9_91.

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Bavarian, Behzad, Jia Zhang, and Lisa Reiner. "Corrosion Inhibition of Stress Corrosion Cracking and Localized Corrosion of Turbo-Expander Materials." In ICAA13: 13th International Conference on Aluminum Alloys. John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118495292.ch60.

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Bavarian, Behzad, Jia Zhang, and Lisa Reiner. "Corrosion Inhibition of Stress Corrosion Cracking and Localized Corrosion of Turbo-Expander Materials." In ICAA13 Pittsburgh. Springer International Publishing, 2012. http://dx.doi.org/10.1007/978-3-319-48761-8_60.

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Qiu, Shun, Nan Peng, Liangwei Zheng, et al. "Multi-field Coupling Rotor Characteristics Analysis for High Speed Turbo Expander Generator Brake." In Proceedings of the 28th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2022. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-6128-3_26.

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Kato, T., A. Miyake, K. Kawano, et al. "Design and Test of a Wet Type Helium Turbo-Expander with an Alternator as a Brake." In Advances in Cryogenic Engineering. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2522-6_111.

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Ribary, Marton, Paul Krause, Miklos Orban, Eugenio Vaccari, and Thomas Wood. "Prompt Engineering and Provision of Context in Domain Specific Use of GPT." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2023. http://dx.doi.org/10.3233/faia230979.

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Large Language Models (LLMs) can appear to generate expert advice on legal matters. However, at closer analysis, some of the advice provided has proven unsound or erroneous. We tested LLMs’ performance in the procedural and technical area of insolvency law in which our team has relevant expertise. This paper demonstrates that statistically more accurate results to evaluation questions come from a design which adds a curated knowledge base to produce quality responses when querying LLMs. We evaluated our bot head-to-head on an unseen test set of twelve questions about insolvency law against the
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Street, Joe. "The Turbo-capitalist Tech Bro." In Silicon Valley Cinema. Edinburgh University Press, 2023. http://dx.doi.org/10.3366/edinburgh/9781399505826.003.0010.

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Part three’s final chapter expands on chapter eight to reveal how the science fiction films critique Silicon Valley capitalism through their villains, linking this to the ‘tech-bro’ phenomenon that emerged in the early twenty first century. It links the villains’ Promethean urges to their fidelity to a winner-takes-all form of individualist capitalism that has its roots in Ayn Rand’s philosophy.
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Conference papers on the topic "Turbo expanders"

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Bavarian, Behzad, Jia Zhang, and Lisa Reiner. "Electrochemical and SCC Inhibition of Multi-alloy Systems Using Vapor Corrosion Inhibitors." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02130.

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Abstract Commercially available inhibitors were successfully investigated for their effectiveness in reducing the corrosion susceptibility of the turbo expander and steam/gas turbine industry alloys. However, due to the fact that the power generating system is complex and consists of a multi-alloy system, the investigation was expanded to study the corrosion behavior and stress corrosion susceptibility of other alloys such as, copper, brass C36000, C69300, red brass C83600, and nickel plated-copper in the presence of these inhibitors. Electrochemical behavior (cyclic polarization and EIS) of t
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Cleveland, Anthony. "Energy Recovery With Turbo Expanders." In ASME 1986 International Gas Turbine Conference and Exhibit. American Society of Mechanical Engineers, 1986. http://dx.doi.org/10.1115/86-gt-66.

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In the oil, gas and petrochemical industry, there are many instances where energy is under-utilized, if not actually wasted. In many cases it may be possible to recover some of this energy and obtain useful work, thereby improving plant efficiency and the economics of the operation. The turbo expander is a simple device that can make a significant contribution to the recovery of energy in all kinds of plants. This paper considers some ways in which turbo expanders may be used and looks in detail at an application in the gas industry where the energy lost in pressure reduction may be recovered
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Wang, Xing, Xiaomin Liu, and Chuhua Zhang. "Performance Analysis of Organic Rankine Cycle With Preliminary Design of Radial Turbo Expander for Binary-Cycle Geothermal Plants." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95933.

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In order to produce less emission of greenhouse gas, many studies have been done on the binary-cycle geothermal power plant to obtain the better performance. The radial turbo expander plays an important role in the performance of Organic Rankine Cycle (ORC) for binary-cycle geothermal plants. However, few studies have investigated the effect of parameters of radial turbo expander on the performance of ORC. In this paper, a new thermodynamic model of ORC coupled with the preliminary design of radial turbo expanders is developed. The effects of geothermal water temperature on the ORC performance
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Cleveland, A. "Turbo Expanders for Energy Recovery; Design and Installation of a 250 Kw Unit." In ASME 1988 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1988. http://dx.doi.org/10.1115/88-gt-266.

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Turbo expanders have been used in a number of installations to generate electricity from the energy available in the process of pressure reduction. The turbo expander replaces the regulating valve and duplicates the functions of the valve, controlling pressure and flow while at the same time generating electricity.
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Perri, Alessandro, Avinash Renuke, and Alberto Traverso. "Innovative Expanders for Supercritical Carbon Dioxide Cycles." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-83116.

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Abstract Supercritical carbon dioxide plants are attracting strong interest, particularly for distributed power generation, thanks to the high-power density, allowing high compactness and efficiencies due to the particular features of the fluid conditions near the critical point. In the present work, the feasibility of innovative turboexpanders is evaluated for the first European demonstrator of MW size, coupling small volumetric flows with technological simplicity, typical of these types of plants. In particular, the possibility of replacing conventional turbines with bladeless expanders is s
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Sengupta, Amrita, Prashant Kumar, Pardeep Garg, Nirmal Hui, Matthew S. Orosz, and Pramod Kumar. "Moment Analysis of a Scroll Expander Used in an Organic Rankine Cycle." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26935.

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Recent studies on small-scale power generation with the organic Rankine cycle suggest superior performance of positive displacement type of expanders compared to turbines. Scroll expanders in particular achieve high isentropic efficiencies due to lower leakage and frictional losses. Performance of scroll machines may be enhanced by the use of non-circular involute curves in place of the circular involutes resulting non-uniform wall thickness. In this paper, a detailed moment analysis is performed for such an expander having volumetric expansion ratio of 5 using thermodynamic models proposed ea
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Kannan, Balaji, Krishnamurthy Vaidyanathan, Kiran Pithamber, and Suvendu Mahapatra. "An Investigation in to the Rotordynamics Behavior of Mechanically Coupled Turbo Expander." In ASME 2014 Gas Turbine India Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gtindia2014-8256.

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Considerable amount of mathematical modeling backed by extensive experimental investigations have gone in to the study of the rotordynamics behavior of high speed turbo expanders. These investigations revolve predominantly around the linear &amp; non-linear aspects of hydrodynamic bearings that support these rotating elements. Further, these expanders are not mechanically coupled to the prime mover and hence the impact of lateral vibrations imposed by the interfacing assemblies downstream is not a concern. However, when the expander is mechanically coupled to a prime mover, say by means of gea
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Yoon, Eunkoo, Hyun Jun Park, Hyun Dong Kim, Kyung Chun Kim, and Sang Youl Yoon. "Experimental Study on the Organic Rankine Cycle Power System Adopting Dual Expanders in Parallel." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26767.

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This study aims to evaluate the performance of an organic Rankine cycle (ORC) power system adopting dual expanders in parallel by experiment. A dual-expander ORC system was designed to provide competitive advantages over a general single expander ORC system in typical applications with large thermal fluctuation of heat sources such as solar heat, marine waste heat, and etc. The ORC system consists of two scroll expanders installed in parallel, a hydraulic diaphragm type pump to feed and pressurize the working fluid, R-245fa, two plate heat exchangers for the evaporator and the condenser, and t
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Barmby, T. Hugh, and Anthony Cleveland. "Control Systems for Turbo Expanders in Pressure Reduction Service." In ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/90-gt-349.

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This paper considers some of the aspects of control of a turbo expander used in pressure reduction service to generate electricity. The parameters governing the performance of the expander and the connection of the expander generator system into a grid or electric supply system are discussed and the practical requirements of a suitable control system are outlined. The essential elements of a system to provide stability and control of certain selected parameters are described and extensions of control to include other functions and to provide additional data for evaluation are reviewed.
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Rubechini, Filippo, Michele Marconcini, Andrea Arnone, Alberto Scotti Del Greco, and Roberto Biagi. "Special Challenges in the CFD Modeling of Transonic Turbo-Expanders." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95554.

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High pressure ratio turbo-expanders often put a strain on CFD modeling. First of all, the working fluid is usually characterized by significant departures from the ideal behavior, thus requiring the adoption of a reliable real gas model. Moreover, supersonic flow conditions are typically reached at the nozzle vanes discharge, thus involving the formation of a shock pattern, which is in turn responsible for a strong unsteady interaction with the wheel blades. Under such circumstances, performance predictions based on classical perfect gas, steady-state calculations can be very poor. While reaso
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Reports on the topic "Turbo expanders"

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Moore, Jeff. Development of a High-Efficiency Hot Gas Turbo-expander and Low-Cost Heat Exchangers for Optimized CSP Supercritical CO2 Operation. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1560368.

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Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers (Fact Sheet). Office of Scientific and Technical Information (OSTI), 2012. http://dx.doi.org/10.2172/1053322.

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