Log in

Relevant bibliographies by topics / Pressure vessels

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers
Reports

Academic literature on the topic 'Pressure vessels'

Author: Grafiati

Published: 4 June 2021

Last updated: 30 July 2024

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

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Pressure vessels.'

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

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

Journal articles on the topic "Pressure vessels"

1

Cui, Yi Hu, Jun Cheng Jiang, Yuan Yu, and Qing Wu Zhang. "Initial Pressure Influence on Explosion Pressures of Methane-Air Deflagrations in Linked Vessels." Advanced Materials Research 936 (June 2014): 2130–34. http://dx.doi.org/10.4028/www.scientific.net/amr.936.2130.

Full text

Abstract:

An experimental study on pressure evolution during closed explosion and venting progress of methane–air mixtures ([CH4=10%]) in linked vessels was performed, for systems at various initial pressures (P0=0-0.08MPa). The effects of initial pressure on regularity of pressure variation in vessels were discussed. For the closed explosion in isolated vessel, the higher level of the initial pressure in isolated big vessel is, the larger the peak pressure and rate of pressure rise is, and the peak pressure increases nonlinearly with initial pressure; For closed explosion in linked vessels, the higher initial pressure within the linked vessels system leads to the higher peak pressures in two vessels and there is an approximate linear relationship between them, which is similar to explosion in isolated vessel. For vented explosion in linked vessels at higher initial pressure, venting has poorer effect on protection of the linked vessels.

APA, Harvard, Vancouver, ISO, and other styles

2

Guan, Gong Shun, Bao Jun Pang, and Yue Ha. "Investigation into Damage of Aluminum Gas-Filled Pressure Vessels under Hypervelocity Impact." Key Engineering Materials 348-349 (September 2007): 785–88. http://dx.doi.org/10.4028/www.scientific.net/kem.348-349.785.

Full text

Abstract:

Impacts of meteoroids and space debris on pressure vessels can have detrimental consequences for any mission. Depending on the parameters of the impacting particle and the characteristic of the vessel, the damages can range from relatively uncritical craters in the vessel’s surface to the catastrophic bursting of vessels, which besides the loss of vessel may result in severe secondary damages to surrounding components. In order to investigate failure mechanisms of thin-walled aluminum pressure vessels under hypervelocity impact of space debris, a non-powder two-stage light gas gun was used to launch Al-sphere projectiles impacting on unshielded and shielded vessels. Damage patterns and mechanisms leading to catastrophic rupture are discussed. Experimental results indicate that the impact kinetic energy of the projectile and the gas pressure in the vessel have an important effect on the damage modes of the vessel. On the one hand, high pressure gas can lead to a vessel blast. On the other hand, high pressure gas can mitigate the impact of the debris cloud on the rear wall of the vessel. Catastrophic rupture of unshielded gas-filled vessels can be avoided when the impact energy is less than a certain limit value. When the bumper is perforated, damage of shielded pressure vessel might be fatal for vessels with high gas pressure.

APA, Harvard, Vancouver, ISO, and other styles

3

Kapali, A., H. P. Neopane, S. Chitrakar, K. P. Shrestha, and P. Sapkota. "Pressure fluctuation measurement in pressure vessels." IOP Conference Series: Earth and Environmental Science 1037, no. 1 (June 1, 2022): 012052. http://dx.doi.org/10.1088/1755-1315/1037/1/012052.

Full text

Abstract:

Abstract Pressure vessels are mechanical devices that act as a reservoir of fluids at pressure more or less than atmospheric pressure. This research focuses on the application of the pressure vessel for hydraulic testing of hydro turbines to maintain uniform velocity profile and to suppress the pressure surge in the pipeline. An initial assumption for the design of a thin-walled horizontal type pressure vessel with the ellipsoidal type of head is based on the mathematical relations as per ASME code, Section VIII, Division I, for an operating pressure of 0.3 MPa and design pressure of 0.6 MPa. The pressure vessel has been placed, close to outlet of the main pump to prevent the water hammering in the pipeline. The measurement of the pressure fluctuations at the inlet, outlet, and inside of the vessel, due to the dynamic action of fluid forced by the pump are recorded. The study attempts to relate the use of pressure vessels to generate stable flow and pressure at the outlet for hydraulic testing of turbines.

APA, Harvard, Vancouver, ISO, and other styles

4

Earley, Scott, and Benjimen R. Walker. "Endothelium-dependent blunting of myogenic responsiveness after chronic hypoxia." American Journal of Physiology-Heart and Circulatory Physiology 283, no. 6 (December 1, 2002): H2202—H2209. http://dx.doi.org/10.1152/ajpheart.00125.2002.

Full text

Abstract:

Blunted agonist-induced vasoconstriction after chronic hypoxia is associated with endothelium-dependent vascular smooth muscle (VSM) cell hyperpolarization and decreased vessel-wall Ca2+concentration ([Ca2+]). We hypothesized that myogenic vasoconstriction and pressure-induced Ca2+ influx would also be attenuated in vessels from chronically hypoxic (CH) rats. Mesenteric resistance arteries isolated from CH [barometric pressure (BP), 380 Torr for 48 h] or normoxic control (BP, 630 Torr) rats were cannulated and pressurized. VSM cell resting membrane potential was recorded at intraluminal pressures of 40–120 Torr under normoxic conditions. VSM cells in vessels from CH rats were hyperpolarized compared with control rats at all pressures. Inner diameter was maintained for vessels from control rats, whereas vessels from CH rats developed less tone as pressure was increased. Pressure-induced increases in vessel-wall [Ca2+] were also attenuated for arteries from CH rats. Endothelium removal restored myogenic constriction to vessels from CH rats and normalized VSM cell resting membrane potential and pressure-induced Ca2+ responses to control levels. Myogenic constriction and pressure-induced vessel-wall [Ca2+] increases remained blunted in the presence of nitric oxide (NO) synthase inhibition for arteries from CH rats. We conclude that blunted myogenic reactivity after chronic hypoxia results from a non-NO, endothelium-dependent VSM cell hyperpolarizing influence.

APA, Harvard, Vancouver, ISO, and other styles

5

Yan, C., ZR Wang, F. Jiao, and C. Ma. "Numerical simulation on structure effects for linked cylindrical and spherical vessels." SIMULATION 94, no. 9 (March 21, 2018): 849–58. http://dx.doi.org/10.1177/0037549718763081.

Full text

Abstract:

This paper presents a simulation study on the methane–air mixture explosions through using the eddy-dissipation concept (EDC) model in FLUENT. The aims are to investigate the structure effects of methane–air mixture explosions in a spherical vessel, cylindrical vessel and different systems of cylindrical vessels connected with pipe. Meanwhile, in order to study the characteristics of methane-air mixture explosions in the linked vessels, changes of flame temperature and airflow velocity in the linked vessels are simulated and analyzed. The results suggest that the effect of structural changes of a single vessel on the gas explosion intensity is clear, and the explosion intensity of a spherical vessel is greater than that of a cylindrical vessel. The simulation results of different structural forms of a cylindrical vessel connected with pipelines show that the time to reach the peak value of explosion pressure is the shortest in the linked vessels, and the explosion pressure rising rate is highest at the vessel’s center. For the linked vessels, after ignition, the airflow ahead of the flame propagates to the secondary vessel, and the maximum airflow velocity of every monitoring point in the linked vessels increases. The detonation occurs when the flame propagates to the secondary vessel, which leads to a severe secondary explosion in the secondary vessel. The studies can provide an important reference for the safe design of industrial vessels.

APA, Harvard, Vancouver, ISO, and other styles

6

Walker, M., T. Reiss, and S. Adali. "Optimal Design of Laminated Cylindrical Pressure Vessels for Maximum External Pressure." Journal of Pressure Vessel Technology 119, no. 4 (November 1, 1997): 494–97. http://dx.doi.org/10.1115/1.2842335.

Full text

Abstract:

Finite element solutions are presented for the optimal design of hemispherically and flat-capped symmetrically laminated pressure vessels subjected to external pressure. The effect of vessel length, radius, and wall thickness, as well as bending-twisting coupling and hybridization on the optimal ply angle and buckling pressure are numerically studied. Comparisons of the optimal fiber angles and maximum buckling pressures for various vessel geometries are made with those for a hybrid pressure vessel. The well-known golden section method is used to compute the optimum angle in each case.

APA, Harvard, Vancouver, ISO, and other styles

7

Blach, A. E., V. S. Hoa, C. K. Kwok, and A. K. W. Ahmed. "Rectangular Pressure Vessels of Finite Length." Journal of Pressure Vessel Technology 112, no. 1 (February 1, 1990): 50–56. http://dx.doi.org/10.1115/1.2928587.

Full text

Abstract:

Design Rules in the ASME Code, Section VIII, Division 1, cover the design of unreinforced and reinforced rectangular pressure vessels. These rules are based on “infinitely long” vessels of non-circular cross section and stresses calculated are based on a linearized “small deflection” theory of plate bending. In actual practice, many pressure vessels can be found which are of finite length, often operating successfully under pressures two to three times as high as those permitted under the Code rules cited. This paper investigates the effects of finite length on the design formulae given by the ASME Code, and also a design method based on “large deflection” theory coefficients for short rectangular pressure vessels. Results based on analysis are compared with values obtained from finite element computations, and with experimental data from strain gage measurements on a test pressure vessel.

APA, Harvard, Vancouver, ISO, and other styles

8

Hoffman, J. I., and J. A. Spaan. "Pressure-flow relations in coronary circulation." Physiological Reviews 70, no. 2 (April 1, 1990): 331–90. http://dx.doi.org/10.1152/physrev.1990.70.2.331.

Full text

Abstract:

The blood vessels that run on the surface of the heart and through its muscle are compliant tubes that can be affected by the pressures external to them in at least two ways. If the pressure outside these vessels is higher than the pressure at their downstream ends, the vessels may collapse and become Starling resistors or vascular waterfalls. If this happens, the flow through these vessels depends on their resistance and the pressure drop from their inflow to the pressure around them and is independent of the actual downstream pressure. In the first part of this review, the physics of collapsible tubes is described, and the possible occurrences of vascular waterfalls in the body is evaluated. There is good evidence that waterfall behavior is seen in collateral coronary arteries and in extramural coronary veins, but the evidence that intramural coronary vessels act like vascular waterfalls is inconclusive. There is no doubt that in systole there are high tissue pressures around the intramyocardial vessels, particularly in the subendocardial muscle of the left ventricle. The exact nature and values of the forces that act at the surface of the small intramural vessels, however, are still not known. We are not certain whether radial (compressive) or circumferential and longitudinal (tensile) stresses are the major causes of vascular compression; the role of collagen struts in modifying the reaction of vessel walls to external pressures is unknown but possibly important; direct examination of small subepicardial vessels has failed to show vascular collapse. One of the arguments in favor of intramyocardial vascular waterfalls has been that during a long diastole the flow in the left coronary artery decreases and reaches zero when coronary arterial pressure is still high: it can be as much as 50 mmHg in the autoregulating left coronary arterial bed and approximately 15-20 mmHg even when the vessels have been maximally dilated. These high zero flow pressures, especially during maximal vasodilatation, have been regarded as indicating a high back pressure to flow that is due to waterfall behavior of vessels that are exposed to tissue pressures.(ABSTRACT TRUNCATED AT 400 WORDS)

APA, Harvard, Vancouver, ISO, and other styles

9

Aceves, S. M., and G. D. Berry. "Thermodynamics of Insulated Pressure Vessels for Vehicular Hydrogen Storage." Journal of Energy Resources Technology 120, no. 2 (June 1, 1998): 137–42. http://dx.doi.org/10.1115/1.2795024.

Full text

Abstract:

This paper studies the application of insulated pressure vessels for hydrogen-fueled light-duty vehicles. Insulated pressure vessels are cryogenic-capable pressure vessels that can be fueled with liquid hydrogen (LH2); low-temperature (46 K) compressed hydrogen (CH2); or ambient-temperature CH2. In this analysis, hydrogen temperatures, pressures, and venting losses are calculated for insulated pressure vessels fueled with LH2 or with low-temperature CH2, and the results are compared to those obtained in low-pressure LH2 tanks. Hydrogen losses are calculated as a function of daily driving distance during normal operation; as a function of time during long periods of vehicle inactivity; and as a function of initial vessel temperature during fueling. The results show that insulated pressure vessels have packaging characteristics comparable or better than those of conventional, low-pressure LH2 tanks, with greatly improved dormancy and much lower boil-off, and therefore appear to be a good alternative for vehicular hydrogen storage.

APA, Harvard, Vancouver, ISO, and other styles

10

Dongaonkar, R. M., T. L. Nguyen, C. M. Quick, J. Hardy, G. A. Laine, E. Wilson, and R. H. Stewart. "Adaptation of mesenteric lymphatic vessels to prolonged changes in transmural pressure." American Journal of Physiology-Heart and Circulatory Physiology 305, no. 2 (July 15, 2013): H203—H210. http://dx.doi.org/10.1152/ajpheart.00677.2012.

Full text

Abstract:

In vitro studies have revealed that acute increases in transmural pressure increase lymphatic vessel contractile function. However, adaptive responses to prolonged changes in transmural pressure in vivo have not been reported. Therefore, we developed a novel bovine mesenteric lymphatic partial constriction model to test the hypothesis that lymphatic vessels exposed to higher transmural pressures adapt functionally to become stronger pumps than vessels exposed to lower transmural pressures. Postnodal mesenteric lymphatic vessels were partially constricted for 3 days. On postoperative day 3, constricted vessels were isolated, and divided into upstream (UP) and downstream (DN) segment groups, and instrumented in an isolated bath. Although there were no differences between the passive diameters of the two groups, both diastolic diameter and systolic diameter were significantly larger in the UP group than in the DN group. The pump index of the UP group was also higher than that in the DN group. In conclusion, this is the first work to report how lymphatic vessels adapt to prolonged changes in transmural pressure in vivo. Our results suggest that vessel segments upstream of the constriction adapt to become both better fluid conduits and lymphatic pumps than downstream segments.

APA, Harvard, Vancouver, ISO, and other styles

More sources

Dissertations / Theses on the topic "Pressure vessels"

1

Lim, C. S. "Plastic limit pressures for pressure vessels with defects at openings." Thesis, Cardiff University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234339.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Kianbakhsh, Pejman. "Recycling polymer composite hydrogen pressure vessels." Thesis, University of Nottingham, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.546472.

Full text

Abstract:

By 2002 the world market for polymer composites was 7.2 Million Tons. The automotive and industrial vehicle industry consumes 25% of the world's composite material output. Composite materials benefit the automotive industry in multiple ways. Regulatory pressure that encourages recyclablity and reduction of energy consumption pushes automotive manufacturers to consider new technologies to meet these environmental standards. The work being undertaken in this research is part of an ED integrated Project under the "Sixth Framework of Research and Development Funding". The project title is "Hydrogen Storage Systems for Automotive Application (StorHy)". Within this project, the Recycling Work Package (WP5) aims to develop recycling techniques for glass and carbon fibre reinforced polymer composite pressure vessels that were proposed for hydrogen storage. This thesis describes the development of a SIze reduction technique for the carbon/epoxy and glass/PP pressure vessels with respect to the particle size and investigates ways of preparing the granulated fractions for subsequent processing. An image analysis technique was successfully developed for the characterisation of the reground material from the carbon/epoxy pressure vessel. The same image analysis technique could not be used to analyse the reground material produced from the thermoplastic vessel. Alternatively, the reground material from the thermoplastic vessel were characterised through a sieve analysis technique. The reground material from the thermoset vessel produced in this work could be processed in a fluidized bed rig which is mentioned in a number of publications. In this work, the reground material from the thermoplastic vessel was successfully processed using an injection moulding machine, with mechanical properties as good as comparable to commercial composites. In this study micro mechanical models available in the short fibre composite literature such as Halpin-Tsai and the rule of mixtures were used to predict the stiffness of the injection moulded composites. The trend observed for the Halpin-Tsai model appeared not to be in a good agreement with the experimental data but the rule of mixtures model was found to predict the experimental data more accurately.

APA, Harvard, Vancouver, ISO, and other styles

3

Tenace, Michael A. "Optimal design of fibre composite pressure vessels." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5819.

Full text

Abstract:

Fibre composite pressure vessels are replacing conventional metallic vessels because of their higher efficiencies (stored energy/unit weight). In this study, multi-layered fibre composite pressure vessels have been designed using a Direct Search method to simultaneously determine the optimal design parameters of layer thickness and wind angle (based upon maximum vessel efficiency according to an interactive failure theory). It was shown that the ability of the fibre composite pressure vessel to resist the internal pressure without failure increased with increasing total wall thickness, up to a certain limit, after which little or no increase in failure pressure was possible. It was also shown that an improved design of a fibre composite pressure vessel can be accomplished by increasing the number of individual equal thickness layers in the vessel wall. Additional improvement in the design can be obtained by allowing the thickness of each individual layer to vary, especially for thicker vessels. Peak vessel efficiency generally occurred at the same wall thickness, implying the efficiency is mostly affected by the type of fibre/matrix combination selected. A slight improvement in efficiency was noticed by increasing the number of individual layers and allowing their thicknesses to vary. Finally, the manufacturing and testing aspects are described.

APA, Harvard, Vancouver, ISO, and other styles

4

Little, Andrew P. F. "The performance of corrugated carbon fibre pressure vessels under external pressure." Thesis, University of Portsmouth, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323284.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Setlock, Robert J. "Hydrostatic pressure retainment." Ohio : Ohio University, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1091108803.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Hovsepian, Sarah. "Digital material skins : for reversible reusable pressure vessels." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/72807.

Full text

Abstract:

Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 50-51).
Spacecraft missions have traditionally sacrificed fully functional hardware and entire vehicles to achieve mission objectives. Propellant tanks are typically jettisoned at different stages in a spacecraft mission and left to burn in the atmosphere after one use, creating a substantial amount of waste and redundancy which leads to high operational costs. Spaceflight programs cannot continue to rely on current methods of discarding hardware, since the cost to transport materials from Earth is extremely high. Significant improvements need to be made in recovery and reuse of valuable hardware, to be able to lower costs per mission and increase the number of missions. Strategies need to focus on avoiding complete loss of hardware. This thesis proposes a new class of materials called digital material skins, that will revolutionize the fabrication and assembly of everyday functional objects to spacecraft structural applications, by embedding the intelligence not in the fabrication tools but in the materials themselves, to create reusable and recyclable materials. A workflow for digital material skins is also demonstrated, based on existing fabrication tools to rethink the entire lifecycle of functional skins from design to fabrication to disassembly. When a child builds a structure out of Legos, precision lies not in the human assembler but in the material, component geometry, and linking mechanism to dictate how and where each material interlocks within the larger material system. A digital material skin is made of discrete units with a finite set of parts and joints used to construct a functional structural skin for airtight,waterproof, high or low pressure applications.The surface is enclosed or the surface is open. Digital material skins are used to construct any shape or interior volume that is regular or amorphous. A digital material skin is an exterior structure which relies on an interior digital material structure for support, or a digital material skin is self-supported with few or no interior support. Parts and links are arranged and configured in a regular pattern to create a surface larger than the units themselves. The skin is part of a larger assembly or part of a single unitary structure of any size or shape. The skin may have a thickness that is smaller or larger than any dimension. The skin is made of one or more layers of one material or multi-material units. The joints are reversible, allowing transfer of forces from one unit to adjacent units to create a continuous bulk material. The work will develop a prototype of a digital material skin concept for pressure vessel skins, and adumbrate a new design methodology that considers the entire lifecycle of digital material skins.
by Sarah Hovsepian.
S.M.

APA, Harvard, Vancouver, ISO, and other styles

7

Kandaz, Murat. "Computer Aided Design And Structural Analysis Of Pressure Vessels." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/2/12607261/index.pdf.

Full text

Abstract:

This study is conducted for the design and analysis of pressure vessels and associated pressurized equipment using various codes and methods. A computer software is developed as the main outcome of this study, which provides a quick and comprehensive analysis by using various methods utilized in codes and standards together with theoretical and empirical methods which are widely accepted throughout the world. Pressure vessels are analyzed using ASME Boiler and Pressure Vessel Code, whereas auxiliary codes, especially ASCE and AISC codes are utilized for structural analyses of these equipment. Effect of wind, seismic, and other types of loadings are also taken into consideration in detail, with dynamic analyses. Support structures and their auxiliary components are also items of analysis. Apart from pressure vessels, many pressurized process equipments that are commonly used in the industy are also included in the scope of the study. They include safety valves which are an integral part of those kinds of pressurized or enclosed systems, two of the heat exchanger components with great importance -tubesheets and expansion joints-, and API 650 tanks for oil or water storage. The computer software called as VESSELAID is written in Microsoft Visual Basic 6.0 using SI units. Design and analysis methods of VESSELAID are based on various code rules, recommended design practices and alternative approaches.

APA, Harvard, Vancouver, ISO, and other styles

8

Rohrauer, Greg. "Ultra-high-pressure composite vessels with efficient stress distributions." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0015/NQ43586.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

CASTRO, ARISTAGORAS MORAES DE. "STRESS ANALYSIS NOZZLES IN PRESSURE VESSELS WITH CONICAL CAPS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1992. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=25613@1.

Full text

Abstract:

COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
O presente trabalho tem por objetivo o estudo de tensões críticas em bocais cilíndricos soldados a vasos de pressão, também cilíndricos, com tampas de geometria cônica submetidos a pressão interna e a um carregamento axial externo. O problema é atacado analiticamente através da teoria de cascas de revolução, particularizada para cascas finas axissimétricas. É utilizado o método de flexibilidade para imposição da continuidade dos esforços e deslocamentos nas junções bocal/tampa e tampa/vaso. Foi desenvolvido um programa de computador que fornece as tensões máximas que ocorrem no bocal, bem como as resultantes de tensão, momentos, deslocamentos e rotações ao longo da estrutura. Observou-se que para uma dada configuração do sistema (diâmetros do bocal e vaso, e ângulos da tampa cônica) existe uma relação ótima entre as espessuras do bocal e da tampa, para a qual o fator de concentração de tensões é mínimo. Esta relação é independente da rasão entre os carregamentos axial e a pressão.
The present work is concerned whit critical stresses due to the combined affect of axial loads and intornal pressure in nossles welded to cilindrical pressure vessels whit conical hoads. The problem is treatod analytically through, axisimetric, thin ahell theory. The method of flexibility is employed to enforce the continuity of loads, moments, displacements and rotations at the junctions. A computer code has been developed for the calculation of the critical atresses in the nozzle, as well as the stresses resultants, moments, displacements, and the rotations along the atracture. It has been observed that for a griven configuration (nozzle and vessel diameters and angle of the conical head), there is an optimum between the nozzle and head thickness for which the stress concentration factor is minimum. This ratio is independent of the relation between the axial hoad and internal pressure.

APA, Harvard, Vancouver, ISO, and other styles

10

Zhao, Yingzi, and 趙瑩子. "Acute and chronic impact of pressure on vascular responsiveness." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/207185.

Full text

Abstract:

Hypertension leads to vascular complications including endothelial dysfunction, heart failure and stroke. The purpose of the present studies was to investigate the chronic and acute impact of high pressure on vascular responsiveness. In Study I, isometric tension measurements demonstrated that contractions to phenylephrine, in the presence of indomethacin (inhibitor of cyclooxygenase), were smaller in aortae of spontaneously hypertensive rats (SHR) with, than in those without, endothelium, while they were comparable in such preparations of normotensive Wistar-Kyoto rat (WKY); the difference in SHR aortae was not affected by L-NAME [inhibitor of nitric oxide synthase (NOS)]. This endothelium-dependent, NOS-independent inhibition of phenylephrine-induced contraction was greater in older SHR (36 versus 18 weeks), and abolished by NO scavengers and ODQ (inhibitor of soluble guanylyl cyclase). It was observed not only in the presence of indomethacin but also apocynin (antioxidant), but inhibited by diphenyleneiodonium (inhibitor of cytochrome P450 reductase). These results suggest that the endothelium-dependent, eNOS-independent inhibition is caused by NO produced by cytochrome P450 reductase in the endothelium of the SHR aorta. Study II investigated the mechanisms underlying the reduced contractions to prostaglandin E2 [agonist of prostaglandin E2 and thromboxane-prostanoid (TP) receptors] by a previous exposure to phenylephrine (agonist of α1-adrenoceptor) in the aortic smooth muscle of the SHR. This inhibition induced by the pre-activation of α1-adrenoceptor was augmented in aortae of older SHR (36 versus 18 weeks) and was not present in WKY preparations. Pre-exposure to the protein kinase C (PKC) activator, phorbol 12,13-dibutyrate, also inhibited subsequent contractions to prostaglandin E2 in SHR aortae. Inhibition of PKC by calphostin C abolished the effect of pre-exposure to phenylephrine. The mRNA expressions of PKC isoforms differed in WKY and SHR smooth muscle. These experiments suggest that in the SHR but not the WKY aorta, α1-adrenergic activation causes heterologous desensitization of TP receptor through activation of a specific PKC isoform(s). In Study III, experiments were performed in a pressure myograph to determine whether or not acute elevation of transmural pressure in the isolated carotid artery of adult mouse (10-12 weeks) impairs endothelium-dependent dilatation by increasing angiotensin II expression or by directly activating AT1 receptors. Transient exposure of arteries to increased pressure (150 mmHg, three hours) inhibited endothelium-dependent, NO-mediated dilatations to acetylcholine, but did not affect responses to the NO donor DETA-NONOate. Inhibiting angiotensin II signaling or angiotensin converting enzyme prevented the impairment of endothelium-dependent dilatation by elevated pressure. Elevated pressure increased the expression of angiotensinogen [precursor of angiotensin II]. Thus, exposure of carotid arteries to elevated pressure leads to local release of angiotensin II, which activates AT1 receptors to cause endothelial dysfunction. In summary, chronic increased pressure increased the endothelial NO release produced by cytochrome P450 reductase from nitrate and developed the heterologous desensitization of TP receptor caused by PKC in SHR aorta. Acute increased pressure impaired endothelium-dependent NO-mediated vasodilatation by activation of local angiotensin system in adult mouse carotid artery. These processes likely contribute to the pathogenesis of hypertension-induced vascular dysfunction and organ injury.
published_or_final_version
Pharmacology and Pharmacy
Doctoral
Doctor of Philosophy

APA, Harvard, Vancouver, ISO, and other styles

More sources

Books on the topic "Pressure vessels"

1

Ross, C. T. F. Pressure vessels: External pressure technology. 2nd ed. Cambridge, UK: Woodhead Publishing, 2011.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

Fryer, Donald M., and John F. Harvey. High Pressure Vessels. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5989-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

M, Fryer Donald, ed. High pressure vessels. New York: Chapman & Hall, 1997.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

4

Fryer, Donald M. High Pressure Vessels. Boston, MA: Springer US, 1998.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

5

Gaddam, Subhash Reddy. Design of Pressure Vessels. Edited by Subhash Reddy Gaddam. First edition. | Boca Raton, FL : CRC Press/Taylor & Francis Group, LLC, 2021.: CRC Press, 2020. http://dx.doi.org/10.1201/9781003091806.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Vullo, Vincenzo. Circular Cylinders and Pressure Vessels. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-00690-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

ASME Boiler and Pressure Vessel Committee. Subcommittee on Pressure Vessels. Rules for construction of pressure vessels: Alternative rules for construction of high pressure vessels. 2nd ed. New York, N.Y: American Society of Mechanical Engineers, 2007.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

8

E, Carson Bryce, ed. Pressure vessels: The ASME code simplified. 7th ed. New York: McGraw-Hill, 1993.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

9

McLaughlan, Pat B. Composite overwrapped pressure vessels: A primer. Houston, TX: National Aeronautics and Space Administration, Johnson Space Center, 2011.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

10

F, Harvey John, ed. Theory and design of pressure vessels. New York: Van Nostrand Reinhold, 1985.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

More sources

Book chapters on the topic "Pressure vessels"

1

Singh, Dinesh Kumar. "Pressure Vessels." In Strength of Materials, 495–564. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59667-5_12.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Tooley, Mike, and Lloyd Dingle. "Pressure vessels." In Engineering Science, 69–80. 2nd edition. | Boca Raton, FL : Routledge [2021]: Routledge, 2020. http://dx.doi.org/10.1201/9781003002246-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Mott, Robert L., and Joseph A. Untener. "Pressure Vessels." In Applied Strength of Materials, Sixth Edition SI Units Version, 671–703. Sixth edition, SI units version. | Boca Raton : Taylor & Francis, CRC Press, 2018.: CRC Press, 2017. http://dx.doi.org/10.1201/9781315153056-12.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Kumar, B. Raghu. "Pressure Vessels." In Strength of Materials, 153–65. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003298748-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Golwalkar, Kiran R., and Rashmi Kumar. "Pressure Vessels." In Practical Guidelines for the Chemical Industry, 55–80. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-96581-5_4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Hout, Sam A. "Pressure Vessels." In Advanced Manufacturing Operations Technologies, 21–24. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003384199-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Fryer, Donald M., and John F. Harvey. "High Pressure Vessels." In High Pressure Vessels, 1–10. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5989-4_1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Fryer, Donald M., and John F. Harvey. "Stresses and Deflection." In High Pressure Vessels, 11–75. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5989-4_2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Fryer, Donald M., and John F. Harvey. "Theories of Material Failure." In High Pressure Vessels, 76–114. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5989-4_3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Fryer, Donald M., and John F. Harvey. "Cyclic Service Influence." In High Pressure Vessels, 115–37. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5989-4_4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Pressure vessels"

1

Muscat, Martin, Duncan Camilleri, and Brian Ellul. "Fibre Reinforced Composite Pressure Vessel Heads Subject to External Pressure." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65365.

Full text

Abstract:

The increase in stiffness to weight ratio and relative ease of manufacturing fibre reinforced composite pressure vessels, have put such vessels at the forefront of technology. However only limited research and specific codes pertaining exclusively to composite pressure vessel design can be found in literature. The ASME Boiler and Pressure Vessel (BPVC) Section X Code and the European design codes EN 13121-3:2016 (GRP tanks and vessels for use above ground) together with EN 13923:2005 (Filament wound FRP pressure vessels — materials, design, manufacturing and testing) are some of the few known design codes applicable to composite pressure vessels. These codes utilise both design by rule (DBR) and design by analysis (DBA) methods. The authors believe that more studies along the DBA route would benefit the composite pressure vessel design community and make it more accessible to designers and engineers. A similar scenario has already been seen in the last 10 to 15 years for steel pressure vessel design codes when DBA based on inelastic analysis was introduced. In line with these thoughts, this study compares the different design methods to prevent buckling and applies finite element analysis (FEA) to analyse a hemispherical GFRP pressure vessel head subjected to external pressure. The effect of material damage and geometrical imperfections on the final collapse failure is examined and discussed.

APA, Harvard, Vancouver, ISO, and other styles

2

Ramirez, Guillermo, Kollin Kenady, and Joshua E. Jackson. "A Method for Field Evaluation of Heat Treatment to Identify Vessels That Are Susceptible to Sulfide Stress Cracking." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65216.

Full text

Abstract:

Inadequate heat treatment in the head and head-to-shell weld areas of a low-pressure separator vessel was determined to have led to conditions which allowed for the development of sulfide stress cracks, and ultimately resulted in rupture of the vessel. This determination was made through the use of destructive testing and failure analysis of the ruptured vessel. Generally, verification of vessel heat treatment is done through review of temperature recordings from manufacturing documentation or third party verification at the time of fabrication. Unfortunately, heat treatment records of pressure vessels are often misplaced, lost during acquisitions/mergers, or simply never existed. Under the assumption that these vessels were adequately heat treated, the vessel’s owners do not normally take into consideration the high residual stresses which create favorable conditions for sulfide stress cracking (SSC) and other stress corrosion cracking type damage mechanisms. In this case, cold formation of the head resulted in high residual stresses in the flange and knuckle regions. The welds, which had not been properly post-weld heat treated, similarly had high residual stresses. These high stresses resulted in favorable conditions for the SSC to occur when exposed to a corrosive environment such as oil and gas operations. In an effort to prevent similar events from occurring in the future, it was determined to be necessary to evaluate other vessels for inadequate heat treatment that may result in SSC. A non-destructive approach was investigated to evaluate vessels, especially in the absence of the aforementioned heat treatment records, to determine if the formed heads and heat affected zones after welding had adequate heat treatment. A method was developed to identify vessels without adequate heat treatment utilizing standard non-destructive testing techniques. There is the potential that many other low pressure vessels in lethal service could have received inadequate heat treatment. This methodology can therefore be used to determine the heat treatment state for these pressure vessels without destructive testing.

APA, Harvard, Vancouver, ISO, and other styles

3

Deng, Yang-chun, and Gang Chen. "Elastic-Plastic Stress Analysis of Pressure Vessels." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78138.

Full text

Abstract:

To save material, the safety factor of pressure vessel design standards is gradually decreased from 5.0 to 2.4 in ASME Boiler and Pressure Vessel Codes. So the design methods of pressure vessel should be more rationalized. Considering effects of material strain hardening and non-linear structural deformation, the elastic-plastic stress analysis is the most suitable for pressure vessels design at present. This paper is based on elastic-plastic theory and considers material strain hardening and structural deformation effects. Elastic-plastic stress analyses of pressure vessels are summarized. Firstly, expressions of load and structural deformation relationship were introduced for thin-walled cylindrical and spherical vessels under internal pressure. Secondly, the plastic instability for thin-walled cylindrical and spherical vessels under internal pressure were analysed. Thirdly, to prevent pressure vessels from local failure, the ductile fracture strain of materials was discussed.

APA, Harvard, Vancouver, ISO, and other styles

4

Underwood, John H. "Kendall Analysis of Cannon Pressure Vessels." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78377.

Full text

Abstract:

Engineering mechanics analysis of cannon pressure vessels is described with special emphasis on the work of the late US Army Benet Laboratories engineer David P. Kendall. His work encompassed a broad range of design and analysis of high pressure vessels for use as cannons, including analysis of the limiting yield pressure for vessels, the autofrettage process applied to thick vessels, and the fatigue life of autofrettaged cannon vessels. Mr. Kendall’s work has become the standard approach used to analyze the structural integrity of cannon pressure vessels at the US Army Benet Laboratories. The methods used by Kendall in analysis of pressure vessels were simple and direct. He used classic results from research in engineering mechanics to develop descriptive expressions for limiting pressure, autofrettage residual stresses and fatigue life of cannon pressure vessels. Then he checked the expressions against the results of full-scale cannon pressure vessel tests in the proving grounds and the laboratory. Three types of analysis are described: [i] Yield pressure tests of cannon sections compared with a yield pressure expression, including in the comparison post-test yield strength measurements from appropriate locations of the cannon sections; [ii] Autofrettage hoop residual stress measurements by neutron diffraction in cannon sections compared with expressions, including Bauschinger corrections in the expressions to account for the reduction in compressive yield strength near the bore of an autofrettaged vessel; [iii] Fatigue life tests of cannons following proving ground firing and subsequent laboratory simulated firing compared with Paris-based fatigue life expressions that include post-test metallographic determination of the initial crack size due to firing. Procedures are proposed for Paris life calculations for bore-initiated fatigue affected by crack-face pressure and notch-initiated cracking in which notch tip stresses are significantly above the material yield strength. The expressions developed by Kendall and compared with full-scale cannon pressure vessel tests provide useful first-order design and safety checks for pressure vessels, to be followed by further engineering analysis and service simulation testing as appropriate for the application. Expressions are summarized that are intended for initial design calculations of yield pressure, autofrettage stresses and fatigue life for pressure vessels. Example calculations with these expressions are described for a hypothetical pressure vessel.

APA, Harvard, Vancouver, ISO, and other styles

5

Yang, Kun, Guide Deng, Haifeng Liang, and Lin Liang. "Numerical Simulation on Fire Test of 45 MPa Hydrogen Storage Vessels for Hydrogen Stations." In ASME 2021 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/pvp2021-62147.

Full text

Abstract:

Abstract In recent years, there have been a number of fire and explosion accidents of hydrogen storage vessels in hydrogen stations all over the world. China is vigorously developing the hydrogen fuel cell vehicle industry. At present, more than 80 hydrogen refueling stations have been built, and 1000 hydrogen refueling stations are planned to be built in 2025. In order to study the response law and pressure relief requirements of hydrogen storage vessels in hydrogen refueling stations under fire condition, fire tests of hydrogen storage vessels filled with high pressure hydrogen is planning to carry out. In this paper, numerical simulation of fire tests of hydrogen storage vessels was carried out. The hydrogen storage vessel is a horizontal single-layer seamless structure with working pressure of 45 MPa, wall thickness of 35.4 mm, volume of 205 L and material of 4130X. Propane is used as fuel for fire test. Based on CFD software, the thermal structural response calculation model of the hydrogen storage vessel under fire condition was established. The response law of hydrogen temperature rise and pressure rise in the hydrogen storage vessel was analyzed, and the influence of filling medium, filling pressure and ambient temperature on the hydrogen storage vessel was studied. The research results provide technical guidance for the subsequent fire test of the hydrogen storage vessels.

APA, Harvard, Vancouver, ISO, and other styles

6

Xuedong, Chen, Fan Zhichao, Dong Jie, Ai Zhibin, and Hu Mingdong. "Safety Assessment of Pressure Vessels in Service for More Than 20 Years." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21238.

Full text

Abstract:

Abstract In recent years, a large number of pressure vessels for the petrochemical plants built in China in the 20th century have been in service for more than 20 years. The Chinese pressure vessel safety specification TSG 21-2016 “Supervision Regulation on Safety Technology for Stationary Pressure Vessel” stipulates that if the pressure vessels without definite design lives have been in service for more than 20 years, they shall be considered to have reached the design service lives. For these pressure vessels, if they are all blindly scrapped, it will cause huge economic losses. However, if they continue to be used blindly, it may bring great safety risks. In this paper, the failure mode, mechanism and damage evolution law are analyzed through a number of failure accident investigations and experimental studies, for typical pressure vessels such as large LPG spherical tanks, pressure swing adsorbers and coke drums. The classification method of pressure vessel for the time-independent and time-dependent failure modes has been proposed. As for the pressure vessels with time-independent failure modes, the principle to determine target life, and the strategy of inspection and maintenance have been proposed. While for the time-dependent failure modes, the safety evaluation and remaining life prediction methods for the pressure vessels with and without defects have been provided. Finally, the advices on amendment to the relevant regulations on pressure vessels have been proposed. The research findings could provide guidance for rationally determining the safety grades and scientifically extending the service lives of pressure vessels.

APA, Harvard, Vancouver, ISO, and other styles

7

Pease, Derrick, George Abatt, and Keith Clutter. "Assessment of Gaseous Detonations in Pressure Vessels." In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-84269.

Full text

Abstract:

Abstract This paper covers several practical engineering aspects of gaseous detonations in pressure vessels: (1) Description of the phenomena and physics of deflagration, detonation, deflagration-to-detonation transition, and reflections in pressure vessels; (2) Development of pressures and loads caused by the detonation process in pressure vessels; (3) Analytical evaluation techniques and assessment criteria in the context of the ASME B&PV Code Section VIII. There are many factors that govern the type and severity of gaseous detonations in pressure vessels including gas composition, initial pressure, and ignition location within the pressure vessel. This paper addresses several of these factors, how they affect the resulting pressure transients in the vessels, and how the pressure transient loads can be applied to the Abaqus structural model. The method of load application is easily adapted to other FEA software packages. The structural integrity of the vessel is evaluated using the Abaqus Johnson-Cook plasticity model and associated strain limit damage criterion. The paper is specifically focused on pressure vessels where gaseous detonations have unique characteristics compared with more constrained space such as piping systems. A companion paper (PVP2022-84291) addresses the unique characteristics of gaseous detonations in piping systems and pipelines.

APA, Harvard, Vancouver, ISO, and other styles

8

Adibi-Asl, R. "Autofrettaged Spherical Pressure Vessels Design." In ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/pvp2007-26804.

Full text

Abstract:

Autofrettage process, adopted by the pressure vessel industry, enhances the static limit pressure of components. In addition, a significant increase in the fatigue life autofrettage components is also observed due to the inhibition of crack initiation and propagation. The application of autofrettage treated vessels can be extended to the power generation industry (fossil and nuclear), the petrochemical industry, the food industry (bacterial eradication container), and automotive applications (injection pump), among many others. In particular, spherical pressure vessels, due to their inherent stress and strain distributions require thinner walls compared to cylindrical vessels; therefore, they are extensively used in gas-cooled nuclear reactors, gas or liquid containers rather than heads of close-ended cylindrical vessels. In this paper analytical expressions have been derived for stress and strain during autofrettage process of spherical vessels with different material models. These formulas have been applied to evaluate the residual stresses, and optimized design in monotonic and cyclic loading conditions.

APA, Harvard, Vancouver, ISO, and other styles

9

Rodriguez, Edward A., and Christopher Romero. "Hydrodynamic Modeling of Detonations for Structural Design of Containment Vessels." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93737.

Full text

Abstract:

Los Alamos National Laboratory (LANL), under the auspices of the U.S. Department of Energy (DOE) and the National Nuclear Security Administration (NNSA), has been conducting confined high explosion experiments utilizing large, spherical, steel pressure vessels to contain the reaction products and hazardous materials from high-explosive (HE) events. Structural design of these spherical vessels was originally accomplished by maintaining that the vessel’s kinetic energy, developed from the detonation impulse loading, be equilibrated by the elastic strain energy inherent in the vessel. In some cases, the vessel is designed for one-time use only, efficiently utilizing the significant plastic energy absorption capability of ductile vessel materials [1]. Alternatively, the vessel can be designed for multiple use, in which case the material response is restricted to the elastic range [2]. Within the last decade, designs have been accomplished utilizing sophisticated and advanced 3D computer codes that address both the detonation hydrodynamics and the vessel’s highly nonlinear structural dynamic response. This paper describes the hydrodynamic modeling of HE reaction products phase, which produces transient pressures resulting in an impulsive load on the vessel shell. Modeling is accomplished through either (a) empirical/analytical methods utilizing a vast experimental database developed primarily for the Department of Defense (DoD) or (b) through application of numerical hydrodynamics codes, such as the Sandia National Laboratories (SNL) shock-wave physics code, CTH [3], which accurately model the thermochemistry and thermophysics of a detonation. It should be noted that this paper only addresses blast load prediction using the methods stated and does not include an assessment of structural response methods.

APA, Harvard, Vancouver, ISO, and other styles

10

McGuffie, Sean, and Nathan Barkley. "A Case Study for Using Engineering Judgement When Analyzing Finite Element Results." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21643.

Full text

Abstract:

Abstract The authors were tasked with designing and fabricating a thick walled (t > 4.5″) ASME Division 2 – Class 2 separator vessel. Due to its service requirements, the vessel is to be regularly hydrotested at 18.87 MPa (2,737 psig). Linear-elastic finite element (FE) evaluations of the vessel indicated that it passed all required Code checks, including the hydrotest check specified in Section VIII, Division 2, Paragraph 4.1.6.2. To develop a greater understanding of the advantages and disadvantages of each method, the FE analyst on the project routinely reanalyzes vessels that have been evaluated per the linear-elastic procedures of Part 5 of the ASME Section VIII, Division 2 Code with the nonlinear procedures also specified in Part 5. This practice allows for direct comparisons of the linear and nonlinear results and for identification of situations where nonlinear analyses could provide benefit. Such an analysis was performed on this vessel under the hydro-static test condition. However, this analysis failed due to solver failure / gross instability (plastic collapse) before the full hydro-static load was applied. The solver failure was confirmed and repeated in multiple FE packages. This presented a conundrum for the authors: should the linear-elastic results be accepted since the vessel passed the linear evaluations, or should they be invalidated since the nonlinear evaluations indicated that failure could occur during a hydrotest, which given the vessel’s operations, will occur frequently? This paper discusses the additional evaluations that were required to establish confidence that the vessel could be successfully hydrotested when fabricated. These included both the Code specified evaluations, and evaluations that allowed engineering judgement to be applied to the design.

APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Pressure vessels"

1

Colletti, Lisa M., and Frank P. III Dickson. Pressure Study of Savillex Vessels. Office of Scientific and Technical Information (OSTI), July 2013. http://dx.doi.org/10.2172/1087611.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

DeTeresa, S. Orbiter Composite Overwrapped Pressure Vessels. Office of Scientific and Technical Information (OSTI), February 2005. http://dx.doi.org/10.2172/917914.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Corwin, W. R. (Irradiation embrittlement of reactor pressure vessels). Office of Scientific and Technical Information (OSTI), September 1990. http://dx.doi.org/10.2172/6565390.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Underwood, J. H. Kendall Analysis of Cannon Pressure Vessels. Fort Belvoir, VA: Defense Technical Information Center, April 2012. http://dx.doi.org/10.21236/ada586513.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Simson, Bert G. Conformity assessment workshop on pressure vessels. Gaithersburg, MD: National Institute of Standards and Technology, 1991. http://dx.doi.org/10.6028/nist.ir.4542.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Mulholland, G. T., and R. A. Rucinski. Technical Appendix to Cryogenic Pressure Vessels. Office of Scientific and Technical Information (OSTI), February 1990. http://dx.doi.org/10.2172/1031850.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Malej, Matt, and Fengyan Shi. Suppressing the pressure-source instability in modeling deep-draft vessels with low under-keel clearance in FUNWAVE-TVD. Engineer Research and Development Center (U.S.), May 2021. http://dx.doi.org/10.21079/11681/40639.

Full text

Abstract:

This Coastal and Hydraulics Engineering Technical Note (CHETN) documents the development through verification and validation of three instability-suppressing mechanisms in FUNWAVE-TVD, a Boussinesq-type numerical wave model, when modeling deep-draft vessels with a low under-keel clearance (UKC). Many large commercial ports and channels (e.g., Houston Ship Channel, Galveston, US Army Corps of Engineers [USACE]) are traveled and affected by tens of thousands of commercial vessel passages per year. In a series of recent projects undertaken for the Galveston District (USACE), it was discovered that when deep-draft vessels are modeled using pressure-source mechanisms, they can suffer from model instabilities when low UKC is employed (e.g., vessel draft of 12 m¹ in a channel of 15 m or less of depth), rendering a simulation unstable and obsolete. As an increasingly large number of deep-draft vessels are put into service, this problem is becoming more severe. This presents an operational challenge when modeling large container-type vessels in busy shipping channels, as these often will come as close as 1 m to the bottom of the channel, or even touch the bottom. This behavior would subsequently exhibit a numerical discontinuity in a given model and could severely limit the sample size of modeled vessels. This CHETN outlines a robust approach to suppressing such instability without compromising the integrity of the far-field vessel wave/wake solution. The three methods developed in this study aim to suppress high-frequency spikes generated nearfield of a vessel. They are a shock-capturing method, a friction method, and a viscosity method, respectively. The tests show that the combined shock-capturing and friction method is the most effective method to suppress the local high-frequency noises, while not affecting the far-field solution. A strong test, in which the target draft is larger than the channel depth, shows that there are no high-frequency noises generated in the case of ship squat as long as the shock-capturing method is used.

APA, Harvard, Vancouver, ISO, and other styles

8

Dodge, W. G., and A. Escalona. Fabrication of toroidal composite pressure vessels. Final report. Office of Scientific and Technical Information (OSTI), November 1996. http://dx.doi.org/10.2172/505724.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Mitlitsky, F., B. Myers, and A. H. Weisberg. Lightweight pressure vessels and unitized regenerative fuel cells. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/460339.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Newhouse, Norman L. Development of Improved Composite Pressure Vessels for Hydrogen Storage. Office of Scientific and Technical Information (OSTI), April 2016. http://dx.doi.org/10.2172/1249338.

Full text

APA, Harvard, Vancouver, ISO, and other styles

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