Relevant bibliographies by topics / ASME nozzle

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

Academic literature on the topic 'ASME nozzle'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "ASME nozzle"

1

Ma, Lin Wei, Jia Sheng He, An Qing Shu, Xiao Tao Zheng, and Yan Wang. "Structural Integrity Analysis of Nuclear Power Plant Pressure Vessel Penetration Nozzle Repaired." Applied Mechanics and Materials 853 (September 2016): 346–50. http://dx.doi.org/10.4028/www.scientific.net/amm.853.346.

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Primary water stress corrosion cracking (PWSCC) has been observed in CRDM nozzles, BMI nozzles and other penetration nozzles. The industry has used the repair method of replacement of nozzles fabricated of Alloy 690. After the replacement of the nozzle, the structural integrity analysis of new nozzle and welds should be performed to ensure the pressure boundary compliance with the original design requirement. In this paper, the pressurizer top head instrument nozzle of PWR nuclear power plant is evaluated as a typical pressure vessel penetration nozzle. The results showed that the repaired nozzle satisfies the ASME Code design requirement and the crack growth of the postulated flaw in 40 years of the nuclear plant life is acceptable.PWSCC degradation mechanism has been observed in CRDM nozzles, BMI nozzles and other penetration nozzles [1]. In some nuclear power plants built in China earlier, such as DAYABAY nuclear power plant and QINSHAN nuclear power plant, PWSCC degradation mechanism has been found in CRDM nozzle welds which manufactured of Alloy 600 and welded of Alloy 82/182[2]. The repair of the degraded nozzles is the popular choice for the nuclear power plant owners. After the replacement of the nozzle, the structural integrity analysis of new nozzle and welds should be performed to ensure the pressure boundary compliance with the original design requirement. In this paper, the pressurizer top head nozzle of PWR nuclear power plant is evaluated as a typical pressure vessel penetration nozzle. Stress intensities were conservatively determined for pressure and applicable thermal transients and compared to the allowable values of the ASME Code, Section III. Thermal stress of the transients was obtained from 3D finite element model (FEM). Residual stress of J-groove weld was obtained from 2D FEM analysis and used for fracture mechanics analysis. All of the analysis showed that the repaired nozzle satisfies the ASME Code design requirement and the crack growth of the postulated flaw in 40 years of the nuclear plant life is acceptable.
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Friedman, E., and D. P. Jones. "The Effect of Flaw Shape on the Fracture Propensity of Nozzle Corner Flaws." Journal of Pressure Vessel Technology 110, no. 1 (1988): 59–63. http://dx.doi.org/10.1115/1.3265568.

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Three-dimensional finite element models were formulated to evaluate the distribution of the elastic stress intensity factor around the periphery of cracklike flaws postulated to exist at the corners of nozzles intersecting cylindrical shells. The effect of the assumed shape of the nozzle corner flaw on the distribution of the stress intensity factor along the crack front was determined in order to indicate where initiation of crack growth is most likely to occur and what shape the crack is most likely to take subsequent to stable crack growth. This is important because of the uncertainty associated with the flaw shape and its effect on crack growth in the nozzle corner region. Stress intensity factors computed from the nozzle corner flaw models were also compared with solutions evaluated using 1) a simplified procedure similar to that given in Section XI of the ASME Boiler and Pressure Vessel Code that makes use of the stresses calculated in the absence of the flaw, 2) the method recommended specifically for nozzle corner flaws in Section III of the ASME Code, and 3) a previously published empirical formula. The results of this paper confirm the adequacy of the simplified procedure for the analysis of nozzle corner flaws of different shapes.
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Vasilescu, Serban, and Costin Ilinca. "A Strength Calculation of a Nozzle Using Comparative Methods." Key Engineering Materials 601 (March 2014): 84–87. http://dx.doi.org/10.4028/www.scientific.net/kem.601.84.

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The stresses and deflections developed due to all piping loads produce some significant deformation in the nozzles of the pressure vessels. In this paper a spherical pressure vessel with two cylindrical nozzles are analyzed. The stresses in the nozzles are evaluated using two comparative methods: one of them represents the classical way of using the superposition of the axial, bending and torsional loads; the other one is based on the requirements of the ASME Boiler and Pressure Vessel Cod, Section VIII, Division 2 and is developed by a FE analysis. In order to obtain the loads (forces and moments) at the end of the nozzle a specialized finite element program has been used. This program (Coade Caesar 5.30) allows studying the strength and flexibility behavior of the pipes that connect the analyzed nozzle with the rest of the plant. The results obtained are compared in order to find when the using of the classical methods of strength of materials can be used as conservative approaches. The finite element method is applied in order to check the most important load cases that appear during the interaction between pipes and shell. In this respect the sustained (proper gravity loads), expansion (thermal loads) and occasional (wind and seismic loads) are combined in order to check all the requirements of ASME. This study contains also the effect of the pressure trust and the influence of the real geometry of the junction (nozzle-shell) in the peaks of the stresses.
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Wilkening, W. W. "3-D Elastic Analysis of a Circular Nozzle Corner Crack." Journal of Pressure Vessel Technology 108, no. 4 (1986): 474–78. http://dx.doi.org/10.1115/1.3264815.

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A 3-D linear elastic analysis has been performed for a circular crack located in the nozzle corner region of a nuclear pressure vessel. The stress intensity factor, K, was found to be virtually constant along the crack front for this particular nozzle corner flaw, which extends one quarter of the distance through the nozzle corner diagonal. The magnitude of K is discussed in relation to the stress intensity factor for the ASME Maximum Postulated Flaw, and is compared to the results of a number of other analyses reported in the literature.
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Oikawa, T., and T. Oka. "A New Technique for Approximating the Stress in Pad-Type Nozzles Attached to a Spherical Shell." Journal of Pressure Vessel Technology 109, no. 2 (1987): 188–92. http://dx.doi.org/10.1115/1.3264894.

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The generally applicable approximate analysis for pad-type nozzles was shown statistically to be reliable through the use of the design of experiments. The focus was on membrane stresses due to an internal pressure in discontinuous portions of the pad-type nozzle attached to a spherical shell designed in the ASME Boiler and Pressure Vessel (BPV) Code, Section VIII, Division 1. Although Division 1 does not require stress evaluations in discontinuous portions, the results given in this paper show that the maximum membrane stress can be above the yield stress for some generally used materials. This evidence will be reviewed in future work.
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Yu, S. C. M., H. J. Poh, and C. P. Tso. "Numerical Simulation on the Flow Structure Around the Injection Nozzles for Pneumatic Dimensional Control Systems." Journal of Fluids Engineering 122, no. 4 (2000): 735–42. http://dx.doi.org/10.1115/1.1319497.

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A numerical simulation on the airflow exiting from a nozzle in a pneumatic dimensional control system has been conducted using computational fluid dynamics code FLUENT (V. 4.3), which solves finite-difference equations. The important changes occurring in the velocity and pressure fields in the vicinity of the nozzle, as the air exiting from the nozzle and impinging on a flat plate, are the prime objectives of the present studies. Simulation studies were first focus on examining the flow characteristics of the system with the conventional nozzle geometry design. Some comparisons with the experimental results previously obtained by Crnojevic et al. (Crnojevic, C., Roy, G., Bettahar, A., and Florent, P., “The Influence or the Regulator Diameter and Injection Nozzle Geometry on the Flow Structure in Pneumatic Dimensional Control Systems,” ASME J. Fluids Eng., 119, pp. 609–615) were also made. Further simulation studies were conducted with particular attention to a more efficient nozzle geometry. It was found that a divergent type of nozzle design could effectively eliminate the flow separation regions within the nozzle head. By allowing the divergent angle of the nozzle head (α) to vary (from zero to about 25 degrees), a more extensive and sensitive measurement range can be achieved at a given pressure regulator diameter to nozzle diameter ratio. [S0098-2202(00)02404-4]
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Lengsfeld, Manfred, Ken Bardia, Jaan Taagepera, Kanajett Hathaitham, Donald La Bounty, and Mark Lengsfeld. "Analysis of Loads for Nozzles in API 650 Tanks." Journal of Pressure Vessel Technology 129, no. 3 (2006): 474–81. http://dx.doi.org/10.1115/1.2748829.

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The analysis of tank nozzles for API 650, (American Petroleum Institute, 1998, API Standard 650, 10th ed.) tanks is a complex problem. Appendix P of API 650 provides a method for determining the allowable external loads on tank shell openings. The method in Appendix P is based on two papers, one by Billimoria and Hagstrom, 1997, ASME Paper No. 77-PVP-19 and the other by Billimoria and Tam 1980, ASME Paper No. 80-C2/PVP-5. Although Appendix P is optional, the industry has used it for a number of years for large diameter tanks. For tanks less than 120feet(33.6m) in diameter this Appendix is not applicable. In previously published papers, the authors used finite element analysis (FEA) to verify the experimental results reported by Billimoria and Tam for low-type nozzles. The analysis showed the variance between stiffness coefficients and stresses obtained by FEA and API 650 methods for tanks. In this paper, the authors have expanded the scope to include almost any size of nozzle as well as tank size. Stress factors for nozzles at different elevations on the shell are provided. Nozzles located away from a discontinuity are analyzed based on the method provided by the Welding Research Council (WRC), New York, Bulletin No. 297, 1987. Stress reduction factors have been developed using FEA for nozzles located closer to a discontinuity. Mathematical equations are provided together with the curves for the stress factors. The results of this paper have been incorporated into Appendix P of API 650 with the Addendum 3 of the 10th edition which was issued in 2003.
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Kim, Hyun Sik, Il Taek Lee, Sung Mo Yang, and Dong Pyo Hong. "Structural Design of Regenerator CA Nozzle in FCC Unit." Advanced Materials Research 702 (May 2013): 280–85. http://dx.doi.org/10.4028/www.scientific.net/amr.702.280.

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FCC Unit (Fluid Catalytic Cracking Unit) is a mechanical device used to convert bunker C oil into high quality gasoline. During the refining operation, pressure vessel of FCC unit operates in high-temperature and high-pressure environment. Careful structural analysis and design are necessary for such equipment.In this paper, FEA (Finite element analysis) of the FCC unit was performed to evaluate its structural stability. The equivalent stress of the FCC unit was investigated and compared against the ASME code design specifications.The area of high stress concentration with maximum stress higher than the prescribed value was analyzed locally to carefully evaluate the stress.CA nozzle in the FCC unit was found to have significant margins for factor of safety and was redesigned for weight reduction. Tensile test was carried out to verify the integrity of the welded parts. Tensile strength of the welded partssatisfies all design requirements.
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Fanous, Ihab F. Z., and R. Seshadri. "Stress Classification Using the r-Node Method." Journal of Pressure Vessel Technology 129, no. 4 (2006): 676–82. http://dx.doi.org/10.1115/1.2767357.

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The ASME Code Secs. III and VIII (Division 2) provide stress-classification guidelines to interpret the results of a linear elastic finite element analysis. These guidelines enable the splitting of the generated stresses into primary, secondary, and peak. The code gives some examples to explain the suggested procedures. Although these examples may reflect a wide range of applications in the field of pressure vessel and piping, the guidelines are difficult to use with complex geometries. In this paper, the r-node method is used to investigate the primary stresses and their locations in both simple and complex geometries. The method is verified using the plane beam and axisymmetric torispherical head. Also, the method is applied to analyze 3D straight and oblique nozzles modeled using both solid and shell elements. The results of the analysis of the oblique nozzle are compared with recently published experimental data.
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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.

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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 software (Autopipe V8i Select Series 3 Edition by Bentley). In this perspective, calculation methodologies were developed in order to do quick analysis of the most common configurations, according to the codes ASME B31.1 (Piping Power). The results of the pipe stress analysis showed that the maximum sustained stress ratio occurred at point A39 (0.32), maximum displacement stress ratio at point A39 (0.97) and maximum hoop stress ratio at point A09 (0.44), all values below 1. This shows that the stress is still safe. The result of load analysis on the turbine casing is the direction x = -880 kg, y = 6246.4kg, z = -3697.7kg, smaller than the weight of the 37 tones turbine casing, so misalignment is not caused by shifting the turbine casing.
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Dissertations / Theses on the topic "ASME nozzle"

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Sasson, Jonathan. "Small Scale Mass Flow Plug Calibration." Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1417540797.

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Book chapters on the topic "ASME nozzle"

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"Failure Analysis of Silica Phenolic Nozzle Liners." In ASM Failure Analysis Case Histories: Air and Spacecraft. ASM International, 2019. http://dx.doi.org/10.31399/asm.fach.aero.c9001491.

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"Failure Analysis of Gas Turbine Engine Fuel Nozzle Heat Shields." In ASM Failure Analysis Case Histories: Improper Maintenance, Repair, and Operating Conditions. ASM International, 2019. http://dx.doi.org/10.31399/asm.fach.usage.c9001508.

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"Stress-Corrosion Cracking of an Inconel 600 Safe-End on a Reactor Nozzle." In ASM Failure Analysis Case Histories: Power Generating Equipment. ASM International, 2019. http://dx.doi.org/10.31399/asm.fach.power.c0091655.

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"A Microstructural Examination of Hot Corrosion of a Co-Cr-Fe Alloy Cast Burner Nozzle from a Coal Gasification Plant." In ASM Failure Analysis Case Histories: Failure Modes and Mechanisms. ASM International, 2019. http://dx.doi.org/10.31399/asm.fach.modes.c9001681.

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Conference papers on the topic "ASME nozzle"

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Hagemann, G., H. Immich, and M. Terhardt. "Flow phenomena in advanced rocket nozzles - The plug nozzle." In 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. American Institute of Aeronautics and Astronautics, 1998. http://dx.doi.org/10.2514/6.1998-3522.

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Clarke, Edward, and Robert Frith. "The Effect of Nozzles and Nozzle Loadings on Shell Buckling." In ASME 2015 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/pvp2015-45090.

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This paper investigates the effect of nozzles and nozzle loadings on the overall buckling capacity of a vessel subject to external pressure designed to ASME VIII Div 1. ASME VIII Div 1 provides a well-established design-by-rule (DBR) approach for vessels subject to external pressure, but this takes no consideration for the presence of openings or nozzles. There are empirical rules regarding nozzle reinforcement for external pressure, but these do not directly consider the buckling capacity of the overall vessel. This paper therefore assesses the impact of nozzles on the buckling capacity of a cylindrical shell, where the nozzle is reinforced as per code requirements. The effect of reduced reinforcement is also analyzed. Subsequently the effect of nozzle loads is also assessed. Nozzles are loaded with ‘allowable’ loads, determined using finite element analysis in accordance with industry practice and code principles. The buckling capacities are assessed using ASME VIII Div 2 Part 5 methods, using a parametric study with over 500 models. Variables considered are vessel diameter, vessel length, nozzle diameter, and both integral and pad-reinforced nozzles are used.
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Boury, Didier. "From P80 Nozzle Demonstration To A5 SRM Nozzle Evolution." In 43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. American Institute of Aeronautics and Astronautics, 2007. http://dx.doi.org/10.2514/6.2007-5811.

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Baker, Mary, and Carl Pray. "Understanding Critical Dynamic Loads for Nozzle and Nozzle Extension Design." In 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-5686.

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Chasman, Daniel, Stephen Haight, and Andrew Facciano. "Excessive Nozzle Erosion in a Multi-Nozzle Grid (MNG) Test." In 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-4495.

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Castner, Raymond. "Exhaust Nozzle Plume Effects on Sonic Boom Test Results for Vectored Nozzles." In 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-5974.

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Hagemann, Gerald, Roland Ryden, Manuel Frey, Ralf Stark, and Jan Alting. "The Calorimeter Nozzle Programme." In 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. American Institute of Aeronautics and Astronautics, 2002. http://dx.doi.org/10.2514/6.2002-3998.

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Zebbiche, Toufik. "Supersonic Plug Nozzle Design." In 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-4490.

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Mohamed, Bassel Y., and Tamer I. Eid. "Analytical Comparison Between Separate Reinforcement Nozzle and Integral Reinforcement Nozzle Behaviors Under Cyclic Loading." In ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/pvp2016-63318.

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ASME code explicitly addresses design for fatigue due to pressure or temperature cycles. Protection against fatigue failure due to cyclic external mechanical loads (e.g. piping loads) is not tackled in depth. This paper provides a less-tedious yet fit-for-purpose approach to evaluate the effect of cyclic external mechanical loads as well as the pressure fluctuations — as a result of piping slug flow — on nozzles fatigue life. The evaluation compares between two types of nozzles construction (configuration); separate reinforcement nozzle and readily radiographed (lip type) integrally reinforced nozzle. Within the analysis, a unity fatigue damage ratio or exceeding the ratcheting allowable limits was selected as the indication for the inadequacy of the reinforcement configuration. COMPRESS® FEA software results comprehensively predict that the separate reinforcement nozzles can’t withstand the imposed cyclic loads since the accumulated fatigue damage are greater than 1 (one) implying that the nozzle will experience fatigue failure before the end of its life time. COMPRESS® FEA results were examined at four locations, namely “shell next to nozzle”, “nozzle next to shell”, “nozzle thickness transition” and “shell away from nozzle”. The maximum stress of the four locations was always at “shell next to nozzle”. These results have been verified against SOLIDWORKS® simulation FEA results. The results show that the separate reinforcement nozzle construction, although adequate for static loadings, has less fatigue life compared to the integral reinforcement nozzle construction. Moreover, progressive distortion of the non-integral (separate) reinforcement connection is predicted showing that the mating members may become loose at the end of each complete operating cycle which could eventually cause disengagement. Additionally, the results support ASME 2004, VIII-2 para. 5-112 recommendations in prohibiting fillet welds in joints of category D for components subject to fatigue service. The paper concludes the advantage of integral reinforced readily radiographed nozzle construction in protection against fatigue failure and ratcheting and also provides a roadmap for simplified fatigue analysis using commercially available software.
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Chang, I.-Shih. "Unsteady-State Rocket Nozzle Flows." In 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. American Institute of Aeronautics and Astronautics, 2002. http://dx.doi.org/10.2514/6.2002-3884.

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