perforator Articles

  • Perforated Metal Panels in Architectural Work

    Perforated metal panels are useful and can be applied in many ways. They make excellent building facades, special types of fencing, unique railings, especially in commercial settings. Here’s how metal panels with holes strategically punched, may be the answer to your problems. Building Panels- Building Facades Perforated metal panels are ideal for building ...

  • Effect of voids on the acoustics of perforated dissipative silencers

    The effect of voids on the acoustic performance of a perforated dissipative expansion chamber is investigated by axially staggering filled/empty segments external to the perforations. A two-dimensional analytical approach is used to determine the Transmission Loss (TL) through pressure and velocity matching at the boundaries of the inlet/outlet ducts, rigid end-plates, and the interfaces between ...


    By Inderscience Publishers

  • Perforation of ABS pipes by boring bivalve Martesia striata: a case study

    Acrylonitrile butadiene styrene (ABS) pipes are considered to be immune for boring organisms. However, inspection of the o0shore cooling water conduits of Lumut combined cycle power plant, Malaysia show that ABS pipes may not necessarily be immune for wood boring pholads, Martesia striata. M. striata caused heavy damage by drilling holes in ABS pipes used (about 5 years) for transportation of ...


    By Aquator B.V.

  • Hydrodynamic performance of retrofitted offshore structures using perforated cylinders

    Direct impact caused by the waves on ocean structures can be efficiently reduced by encompassing the member with a perforated cover. One of the successful attempts to reduce wave forces on the damaged members is using perforated outer cover on a damaged member. Experimental investigations are carried out on perforated outer cylinder encompassing the inner cylinder for different perforation ratios ...


    By Inderscience Publishers

  • Modelling and simulation of gravel-pack damage due to particle transport by single phase flow in cased hole completion

    Migration of formation fines into a gravel pack frequently causes a severe reduction of gravel pack permeability and consequently affects well’s productivity. In sand-producing formations, a cased hole gravel-pack is usually the preferred completion method. The unsteady state migration of formation fines into gravel-filled perforations during single phase flow has not been included in previous ...


    By Inderscience Publishers

  • Geoweb system stability test over soft subgrades, Assn of American Railroads, Transportation Technology Center, Pueblo, Colorado

    The Association of American Railroads (AAR) maintains a very special research facility near Pueblo, Colorado, the Transportation Technology Center (TTC). Within the TTC is the Facility for Accelerated Service Testing (with the apt acronym “FAST”) where years of extreme stress conditions can be applied in a few months. On FAST’s High Tonnage Loop, a 2.7 mile “loop of track” dedicated to High Axle ...


    By Presto Geosystems

  • Sample preparation for the analysis of matured timber

    The matured timber statute dedicates itself with the utilization and application of matured timber. A perfect assistant for the sample preparation are the FRITSCH Cutting Mills.  It especially includes rules concerning analysis for the examination of matured timber in regards to heavy metals (lead, cadmium, chromium etc.), arsenic, as well as PCP and PCB (pentachlorophenol and ...


    By Fritsch Milling and Sizing

  • Performance of a solar dryer using hot air

    A solar dryer for drying herbs and spices using hot air from roof-integrated solar collectors was developed. The dryer is a bin type with a rectangular perforated floor. The bin has a dimension of 1.0 m!2.0 m!0.7 m. Hot air is supplied to the dryer from fiberglass-covered solar collectors, which also function as the roof of a farmhouse. The total area of the solar collectors is 72 m2. To ...


    By Thai Solar Power

  • Ground drainage with Filtram

    The A11 Thetford Bypass comprises approximately 7.5km of single and double carriageway. The design called for a roadside fin drain system to act as a vertical water flow interceptor in conjunction with a horizontal under channel drainage layer incorporated within the roadbase. The combined system discharges to conventional drainage outlets. Filtram 1B1 -ED was chosen as the vertical fin drain and ...

  • Pore Size Distribution of Nonwoven Geotextiles

    The applicability of the mercury intrusion technique to determine the pore size distribution (PSD) of geotextiles was evaluated. The method was found to be simple and rapid, and an ASTM standard for soils and rocks already exists (ASTM Test Method for Determination of the Pore Volume and Pore Volume Distribution of Soil and Rock by Mercury Intrusion Porosimetry [D 4404]). The PSD determined from ...


    By ASTM International

  • Pemex implements Xp3 Fuel Additives to extend equipment life

    Xp3 is part of their maintenance budget and operations to extend equipment life. Used on oil rig equipment and perforation equipment. Petroleos Mexicanos, which translates to Mexican Petroleums, is the Mexican state-owned petroleum company, created in 1938 by nationalized petroleum. It is the biggest enterprise in Mexico, the largest taxpayer in the country and one of the largest companies in ...


    By Xp3 Canada

  • Permeable stabilization for embankments - case study summary

    The Problem After years of receiving record rainfall events and continuously saturated soils, severe surface slope failure occurred on a railroad embankment. All vegetation, including large trees, was part of a resulting mudslide that covered and blocked a critical section of track between Portland, Oregon and Seattle, Washington. An immediate repair was critical since track closure for any ...


    By Presto Geosystems

  • Application of a CFD Model to Improve the Performance of Rectangular Clarifiers

    There has been a long standing debate about the relative merits of circular and rectangular clarifiers. Both have been shown to be capable of excellent performance and both have experienced problems. The hydrodynamics of each configuration under similar hydraulic loading differ in fundamental aspects that determine what types of geometric modifications are likely to improve the clarifier ...

  • Flow Profiling on Demand – Illuminating the reservoir with Silixa’s intelligent Distributed Acoustic Sensor (iDAS) and ULTIMA Distributed Temperature Sensor (DTS)

    As energy demands increase rapidly, the goal of energy companies is to maximize ultimate recovery in an economically sound manner. One critical capability is the accurate measurement and monitoring of production from individual layers / perforated intervals in a multi-zone completion. This data allows operators to optimize zonal production, improve recovery, increase production per well and ...


    By Silixa Ltd

  • Deep groundwater collection tenches by the bio-polymer drain method

    Introduction The installation of deep drainage trenches has long been a risk-filled and costly endeavor, conventional installation techniques involve dewatering, sheeting and shoring, and danger to personnel working in the trench from trench collapse. Recently, due to the public's concern for the environment and the need to preserve groundwater resources, there has been an increased demand ...


    By Geo-Con, Inc.

  • West bouldin creek Watershed protection program city of Austin - Case Study

    The Watershed Protection Department of the City of Austin is enthusiastic about cellular confinement technology. Though only recently added as a favorite system in their problem solving toolkit, this technology has been applied with dramatic success by in-house personnel in designing and building a 22 foot retaining wall to reinforce an eroding streambank. West Bouldin Creek makes a 90 degree ...


    By Presto Geosystems

  • LiquiDrainer

    LiquiDrainer – automatic, quick and profitable emptying of filled liquid containers Efficient and automatic emptying – time-consuming manual emptying is over! The LiquiDrainer empties filled PET bottles, TetraPak and beverage cans. Even entire packages can be emptied. High-cost manual opening of the bottles is no longer necessary, the LiquiDrainer takes over this job ...

  • 2000 IFAI award west Bouldin Creek, Austin, Texas

    The Watershed Protection Department of the City of Austin is enthusiastic about cellular confinement technology. Though only recently added as a favorite system in their problem solving toolkit, this technology has been applied with dramatic success by in-house personnel in designing and building a 22 foot retaining wall to reinforce an eroding streambank. West Bouldin Creek makes a 90 degree ...


    By Presto Geosystems

  • First commissioned LFG power generation unit in Iran

    The first landfill gas (LFG) power generation station in Iran was officially commissioned in July 2009. This plant is located in old landfill site of Mashhad, the second largest city in Iran. This landfill has been receiving municipal solid wastes (MSW) since 1975 but the first activity for biogas extraction in this site was started in 2000. The LFG extraction system in this site is based on ...


  • Fine screens help New Jersey wastewater treatment plant stop rag and grease problems

    A few years ago the Hammonton Wastewater Treatment Plant, located in the lush green countryside of southern New Jersey, faced continuous problems with rags, trash and plastics passing right through a rusty old bar screen and into the oxidation ditch and final clarifier.After years spent unclogging pumps, clearing out trash and untangling the UV system – plant managers decided to find a better ...


    By JWC Environmental

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you