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Engineering Services

Engineering Services

Donegani Anticorrosione specializes in determining the remaining life of structural elements on which safety inspections have found defects. Equipment often presents elements with flaws such as cracks or areas where thickness readings are below nominal values.

When the question is whether it is possible to operate an item with detected critical issues, potentially until the next plant shutdown, Donegani Anticorrosione can provide a scientific and certain answer, as demonstrated by the hundreds of interventions carried out internationally.

With the same methodological approach, we can define the most suitable inspections and establish the remaining life of a structural element that has operated for a long time at high temperatures.

For this type of problem, we always perform two calculations based on completely different criteria, and only if both yield a positive answer do we take responsibility for the result, thereby affirming the suitability for continued use of the element despite the defect. Our calculations focus not only on analyzing the problem but also on finding a solution to prevent the same problem from recurring in the future.

We also regularly provide dynamic calculations for structures and piping, water hammer analysis, and fatigue assessment on elements operating under cyclic conditions.

  • Pressure Vessel Analysis

    Columns

    Heat Exchangers

    Steam Generators

    Storage Tanks

    Mechanical Analysis with Internal and External Pressure

    Supports

    Nozzle Analysis according to WRC Bulletin 107

    Thermodynamic Analysis

  • Pipe Stress Analysis

    Deadweight and Pressure Analysis (or Self-Weight and Pressure Analysis)

    Thermal Analysis

    Wind and Seismic Analysis

    Dynamic Analysis

    Minimum Required Thickness

    Pump and Flange Analysis

    Bellows Analysis

    Fiberglass Pipes (or Fiberglass Piping)

  • Structural Analysis

    Steel Structures

    Racks (or Pipe Racks)

    Skids (or Modular Skids / Equipment Skids)

    Offshore Platform

    Static Analysis

    Seismic and Wind Analysis

    Response Spectra

    Time History (or Time History Analysis)

  • Stack and Duct Analysis
  • Fracture Analysis

    Metallurgical discipline focused on the investigation of damage phenomena in metallic materials caused by in-service operation.

  • Consulting Services for Machinery

    Scope of Services Efficiency loss assessment Component failure analysis (bearings, seals, couplings, labyrinths, etc.) Major overhaul activities Technical upgrade of machinery (bearings, seals, labyrinths, overspeed governors, diagnostic instrumentation, etc.) Dry Gas Seal applications on centrifugal compressors Steam turbine governor upgrade (electronic instead of hydraulic) Industries Served These activities can be performed in the processing plants of: Oil and Gas (onshore & offshore) Power Generation Petrochemical Production Gas Extraction and Transportation

  • Finite Element Analysis (FEA)
    • Mechanical analysis
    • Thermal analysis
    • Fluid dynamics analysis
    • Fatigue analysis
    • Linearization
  • Fitness for service

    Fitness-For-Service (FFS) Assessment of Equipment according to API 579-1/ASME FFS-1

  • Field Safety Management
  • Calculation Methods and Software

    Our calculations are developed based on international codes used worldwide, as well as specific codes mandated by the client's country. CODES EUROCODE ANSI / ASME: I, III, VIII div. 1 & 2, B31.1, B31.3 ITALIAN CODES: UNI, ISPESL, VSR, VSG UBC AISC API: 579, 610, 620, 650 NEMA TEMA BRITISH STANDARD PED Country-Specific Codes SOFTWARE SARGON & GTSTRUDL: (linear, non-linear, static and dynamic structural analysis, response spectra, time history) ANSYS: (Finite Element Analysis - FEA) PIPEPLUS: (pipe stress analysis) SANT'AMBROGIO: (pressure vessel design) Other dedicated programs for specific client needs

  • Remaining Creep Life Assessment

    When a material is subjected to a constant stress at high temperature, exceeding half of its absolute melting temperature, it may undergo progressive plastic deformation over time.

    This time-dependent deformation is precisely known as high-temperature creep or simply creep.