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Sunday, July 26, 2020 | History

3 edition of Evaluation of the leakage behavior of inflatable seals subject to severe accident conditions found in the catalog.

Evaluation of the leakage behavior of inflatable seals subject to severe accident conditions

Evaluation of the leakage behavior of inflatable seals subject to severe accident conditions

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  • 9 Currently reading

Published by Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission in Washington, DC .
Written in English

    Subjects:
  • Nuclear reactors -- Containment -- Safety measures.,
  • Sealing (Technology).

  • Edition Notes

    Statementprepared by M.B. Parks.
    ContributionsU.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15367580M

    Air Leakage Effects Controlling shell air leakage is a key to a successful weatherization job. Decisions made about sealing air leaks will affect a building throughout its lifetime. The following list highlights important ways air leakage effects buildings. 1. Air leakage can significantly change the net heat loss through a framing cavity. 2. Start studying Fasteners, Gaskets, Seals, and Sealants. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

    dynamic behavior of two different types of tip seals, which are the multi-blade and the monobloc tip seals. Youn et al. [13] developed the experimental apparatus to measure the leakage flow using tip seal under the actual operating conditions. However, it is not enough to clarify the leakage characteristics of tip seal because of the. Assessment of the Potential Consequences of a Large Primary to Secondary Leakage Accident – Final Report Francesco S. D’Auria prevention of the accident from developing into a severe accident. The control of these accidents typically requires many operator actions. To carry out a comprehensive evaluation of these accidents, it is Author: F. D'Auria, A Sartmadjiev, S Spalj, J Macek, H Kantee, J Elter, P Kostka, N Bukin, A Gudoshnikov, M.

    ANS Issues Response to Inquiry on ANSI N, “Containment Isolation Provisions for Fluid Systems” (redesignated ANS). (Nuclear News, July ) Inquiry: I am requesting an interpretation or clarification for criteria (3) of ANSI NFile Size: 9KB. 1 () - To protect packing rings or seals from damage when it is necessary to install them over or inside threaded sections, the C- threaded section should be covered with a suitable sleeve. 2 () - To prevent external and internal leakage in aircraft hydraulic units, the most commonly used type of seal is the.


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Evaluation of the leakage behavior of inflatable seals subject to severe accident conditions Download PDF EPUB FB2

Nuclear Engineering and Design () North-Holland Leakage behavior of inflatable seals subject to severe accident conditions 1 M.B. Parks Containment Technology Division, Sandia National Laboratories, P.O.

BoxAlbuquerque, NMUSA Received 13 February ; revised version 30 September The paper describes tests to determine Author: M.B. Parks. Get this from a library. Evaluation of the leakage behavior of inflatable seals subject to severe accident conditions.

[M Brad Parks; Sandia National Laboratories.; U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering.].

Evaluation of the leakage behavior of inflatable seals subject to severe accident conditions Technical Report Parks, M.B. Sandia National Laboratories, under the sponsorship of the United States Nuclear Regulatory Commission, is currently developing test validated methods to predict the pressure capacity of light water reactor containment.

Evaluation of the leakage behavior of inflatable seals subject to severe accident conditions Technical Report Parks, M B Sandia National Laboratories, under the sponsorship of the United States Nuclear Regulatory Commission, is currently developing test validated methods to predict the pressure capacity of light water reactor containment.

Often seal face leakage rates will depend on pump/motor operating conditions. If operating vibration levels are high, the shaft suffers from excessive radial or axial movement or is mis-aligned excessively, leakage rates tend to be higher.

Typically, seals leak more during dynamic operation than in a static condition under fl uid Size: KB. Leakage behaviour of elastomer seals under dynamic unloading conditions at low temperatures Article (PDF Available) in Polymer Testing. Leakage Testing During Lateral Displacement of Metallic Seals Under Mechanical Accident Impact.

transmission behavior of the He-leakage measur ing. For the evaluation of the leakage behaviour, the leakage rate of the system is measured.

The leakage rate is a value that is dependent on the number of particles passing a gap between two volumes within a specific period of time. It is usually defined by the change in pressure Δp in a volume V over a period of time by: 8.

seals, especially regarding its leakage behavior (Munson and Steinetz, ; Flouros et al., ). Further benefits are the lower weight and the reduced design space.

Figure 1 Axial view of a brush seal. A brief history of brush seal development The development of brush seals at MTU Aero Engines AG started in Current and advanced engine seals (i.e., labyrinth, brush, finger, and non-contacting seals) are tested at NASA’s Glenn Research Center turbine seal rig at unique temperature, pressure, and surface speed combinations.

In addition to measuring seal leakage, the seal rig can measure seal torque by means of a torquemeter installed between the air. CiteScore: ℹ CiteScore: CiteScore measures the average citations received per document published in this title.

CiteScore values are based on citation counts in a given year (e.g. ) to documents published in three previous calendar years (e.g. – 14), divided by the number of documents in these three previous years (e.g. – 14). Mechanical Seal Failure Modes William H.

Skewis Support Systems Technology Corp. Mechanical seals are used in industrial pumps, compressors, and other applications to provide a leakproof seal between component parts.

There are many different designs of a mechanical seal to meet specific applications. A mechanical seal may be an assembly designedFile Size: 79KB. Mechanical Seal Leakage in Pumps How much, if at all, mechanical seals do, must or must not leak is a controversial subject for which there are few clear answers.

This document is intended to clarify what to expect on mechanical seals found in COLFAX® products. A mechanical seal, figure 1, consists of a stationary member (seat)File Size: KB.

MODELING AND SIMULATION OF OIL LEAKAGE IN RADIAL LIP SEALS Yıldız, MeltemMechanical Engineering Department Supervisor: Prof. Metin Akkök April92 pages Radial lip seals are used to prevent leakage between machine elements in many industrial applications.

During operation, fluid film between seal lip and shaft surface. Containment Integrity Research at Sandia National Laboratories An Overview Manuscript Completed: March Date Published: July Prepared by M. Hessheimer1 R. Dameron2 1 Sandia National Laboratories P.O.

Box Albuquerque, NM 2 David Evans and Associates, Inc. Granite Ridge Drive Suite San Diego, CA A. Sheikh. Leakage testing handbook, Issue J. William Marr, General Electric Company, Jet Propulsion Laboratory (U.S.) National Aeronautics and Space Administration; for sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Va., - Leak detectors.

Failure of mechanical shaft seals 76 1. Introduction to failures Failure of the mechanical shaft seal is the most common cause of pump downtime.

The shaft seal is exposed to widely varying operating conditions. Sometimes operating conditions change to become quite different from the specific conditions for which the seal was Size: KB. Other times, failure is a result of poor selection or installation errors.

Here are 6 of the most common reasons mechanical seals can fail. ALLOWING THE PUMP TO RUN DRY Allowing your pump to run dry can be very damaging to a mechanical seal. Under the right conditions, mechanical seals can experience thermal shock and shatter within 30 seconds.

the seals, will be at fault. If a suitable material can’t be found, an artificial environment must be created by flushing the seal from an external source. Leaching normally caus-es a minor increase in seal leakage and a sharp increase in wear of the carbon faces.

Ceramic and tungsten car-bide faces that have been leached will appear dull andFile Size: KB. be contaminated by leakage from the injection zone. To an-swer questions related to such a multilayer system, the ana-lytical solution developed for two connected zones is extended to enable evaluation of vertical leakage attenua-tion by considering multiple overlying formations with alternating confining layers.

Such calculations can be doneCited by:. Fluid Leakage across a Pressure Seal Ruby R. P.*1, G. Kulkarni2, and U. Kanade1 1Noumenon Multiphysics, 2Oneirix Labs *, “Sharman”, Sahajanand Soc, Kothrud, PuneINDIA. Email: @ Abstract: Seals or gaskets that are compressed between walls of a container are important to many industrial applications.

In this File Size: 2MB.An Experimental Investigation into the Pressure Leakage Relationship of some failed water pipes Another important hydraulic future comes into play in laminar flow, which is characterised by a linear relationship between head loss and flow rate.

Flow through orifices is laminar at Re below about 10 and turbulent above about Intermediate.This instruction book outlines the procedures that we recommend you to adopt in order to get complete ® ® products.

Technical data on the main VAM satisfaction with these VAM connections are also included. While every effort has been made to ensure the accuracy of this book we do not accept any responsibility for the information contained herein.