News & Insights from Dynaflow Research Group

Fiberglass Engineering

Safety Factors Fiberglass Engineering

Safety Factors in Fiberglass Engineeringby Mick Bouman (Fiberglass Engineering) For a pipe system or an individual component an engineer must always verify whether the strength

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Dynaflow Research Group

Dynaflow webinars online

Dynaflow Research Group regularly hosts technical webinars. These webinars, which are FREE to watch, are recorded and made available online through our YouTube channel. A

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Engineering Training

Parallel Programming

Starting February 11th 2020, our Software Director Erik Jan Lingen together with Matthias Möller from the Faculty of Mathematics will present a course (WI4265TU) on

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Dynaflow Research Group

ISO 9001:2015 Certification

Dynaflow Research Group (DRG) has recently been accredited with the quality management standard NEN-EN-ISO 9001:2015. Today, Niels Bos from Dynaflow Research Group received the official  ISO9001 certificate from Vincent

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Engineering Training

NozzlePRO Online training

There has been a demand for Online FEPipe and NozzlePRO training courses for many years. We are happy to announce that next month we will

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ISOtracer
Training

ISOtracer Free Online course

For the last couple of months DRG is expanding its training activities online in association with the e-learning platform EngineeringTrainer.com. Our newest online course regards

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Engineering Training

EngineeringTrainer.com

Besides classroom courses taught at our offices in The Netherlands, The Middle-East or at client premises, we are expanding our training portfolio with online courses.

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Fiberglass Engineering

ISO/TC 138/SC 6

DRG hosting the ISO/TC 138/SC 6 and WG’s meetings Zoetermeer, 17, 18 and 19 September DRG is hosting the 3-day ISO/TC 138/SC 6 and WG’s

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Training

Dutch OpenFOAM user’s group

DRG presents at the Dutch OpenFOAM User’s Group 2018 DRG is actively involved in the research and application for Computational Fluid Dynamics (CFD) and Discrete

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Fluid Flow

API 674 Acoustical study

API 674 Acoustical study, some differences between design approach 1 (DA1) and design approach 2 (DA2) When purchasing or delivering a reciprocating pump an API674

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Fiberglass Engineering

Revised ISO 14692: 2017

Recently in the fall of 2017 a renewed edition of the ISO14692, the governing standard for fiber reinforced plastic piping, was officially released. The objective

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Consulting

The new 2017 ASME B31J

B31J: The answer to Markl’s 1950’s flexibilty factors The new 2017 ASME B31J Up to recent years most pipe flexibility analyses and more specifically Caesar

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Fluid Flow

DFC2017 keynote

DFC2017 keynote: Simulation requirements for oil and gas transport in pipeline systems Presentation by Prof. dr. ir. Ruud A.W.M. Henkes (Shell Projects and Technology/Delft University

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Fluid Flow

DFC2017 abstracts

DFC2017 abstracts: Efficient Industrial Conjugate Heat Transfer in HELYX v3 Presentation by Dr. Eugene de Villiers PhD. MSc. DIC (Engys UK) DRG is proud to

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Software

Upcoming webinar

Analysis of Surge problems with CAESAR II and BOSfluids 5.4 The webinar Together with Hexagon PPM, DRG is co-hosting a free webinar on Analysis of

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Uncategorized

Pulsations Paper

Benefit of computational simulation of a pulsation dampener compared to an analytical method Accumulators are used to reduce pressure pulsations from reciprocating pumps by adding

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Dynamic stress response of the Ærfugl MEG Injection Skid

Dynamic stress response of the Ærfugl MEG Injection Skid

The Ærfugl MEG (Monoethylene Glycol) injection skid, engineered by Hitec Products AS for deployment on the Skarv FPSO, is a critical system designed to inject MEG into subsea flowlines, thereby preventing hydrate formation. Following the comprehensive pulsation analysis, which established compliance with API 674 DA2 pulsation criteria through targeted mitigation

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Pulsation Analysis of the Ærfugl MEG Injection Skid

Pulsation Analysis of the Ærfugl MEG Injection Skid

Following the successful verification of the static mechanical integrity of the Ærfugl MEG injection skid in Phase 1, Hitec Products AS commissioned Dynaflow Research Group to undertake a detailed pulsation analysis in accordance with API 674 DA2. The aim was to address the risks posed by pressure pulsations generated by

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Ærfugl MEG injection skid consisting of a suction (blue), discharge (green) and pressure safety line (red), for transport load cases

Static Pipe Stress Analysis for Ærfugl MEG Injection Skid

The Ærfugl MEG (Monoethylene Glycol) injection skid, designed and produced by Hitec Products AS for installation on the FPSO (Floating Production Storage and Offloading) vessel in the Skarv field, is a mission-critical component in the field’s flow assurance strategy. To ensure mechanical integrity and operational reliability, a comprehensive static pipe

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ANSYS flange model
FEA

Analysis of Large Dissimilar Bolted Flanges

For a coil-wound liquified natural gas (LNG) heat exchanger, an existing 66” and new 72” bolted flange joint have been analysed and reviewed for mechanical loading and multiple thermal load cases in accordance to the 2013 edition of ASME VIII Div.1 and Div.2  by Dynaflow Research Group (DRG) using ANSYS

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modelling aspects
Fiberglass Engineering

Pipe Stress Analysis for a Firewater GRE system

An existing fiberglass firewater piping system was expanded to enhance its capacity, necessitating validation for the newly added components. The client, engaged in the RDCG Rotterdam capacity growth project, specializes in producing renewable fuels through the chemical conversion of vegetable and animal oils. The firewater system at this facility is

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Stable vortex with higher flow velocities
BOSfluids

Mixing Flow, Surge and Pipe Stress Analysis

Our client was looking to repurpose a liquid transport and storage system for a different fuel. The new fuel blend has a larger viscosity and density. Heat tracing is applied to the pipe line to reduce the liquid viscosity during transport. The new fuel is pumped into a storage tank,

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CFD

Multiphase CFD Study of Separation Tank

Our client reported multiple cracks at weld locations on a separation tank. These cracks are suspected to be caused by dynamic flow effects from the mixed inflow of acid gas and liquid. To address this issue, the client requested a Computational Fluid Dynamics (CFD) analysis to quantify the forces exerted

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cfd, computational fluid dynamics
CFD

Multiphase Flow & Vibration Analysis of PSV Discharge

A client approached Dynaflow with concerns about potential dynamic loads on their piping system during the activation of a Pressure Safety Valve (PSV) protecting a degasser. During PSV opening, both gas and liquid (methane and water) are discharged together, creating complex flow conditions that could lead to transient forces and

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compressor analysis. pulsation analysis, vibration analysis
Fluid Flow

Pulsation and Vibration Analysis of Compressor System

A client operates a reciprocating compressor at their terminal facilities, which is integral to their gas processing operations. During routine operations, excessive vibrations were observed within the system, raising concerns regarding equipment reliability, safety, and compliance with relevant industry standards. The compressor system in question features a 6-cylinder design with

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oil and gas, pulsation and vibration, compressor
BOSpulse

API 618 DA3 Pulsation and Vibration Study for Compressor

The Tesoro Salt Lake City Refinery initiated a project to reduce the sulfur content in its products, necessitating modifications to the piping system on the discharge side of compressors K-701A/B. These changes prompted concerns about excessive pulsations and vibration-induced stresses, particularly as no previous pulsation study had been conducted. The

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heat exchanger, cfd, computational fluid dynamics
CFD

Flow-Induced Vibration Analysis in Heat Exchanger Tube Bundles

Heat exchangers are essential in industrial applications for transferring heat between fluids. However, they are susceptible to multiple mechanical failures, being one of them flow-induced vibrations (FIV). This case study examines a specific incident where a heat exchanger experienced multiple failures at the welded connections of tube bundles to the

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catalyst withdrawal
CFD

CFD and FEA Analysis of a High-Temperature Tee in Chemical Processing

In the chemical processing industry, equipment integrity under extreme conditions is paramount for safety and efficiency. This case study examines the thermal and mechanical analysis of a 2” equal tee subjected to high-temperature fluidized catalyst streams. The project’s objective was to assess the tee’s integrity where a 690°C catalyst stream

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fiberglass, frp, fiberglass engineering, cooling water network
Asset Integrity

Asset Integrity Review of Fiberglass Piping in Cooling Water Network

A petrochemical facility has been experiencing recurring failures in its fiberglass piping Cooling Water (CW) network. With seven failures reported up to 2014 and a recent failure in November 2023, the integrity of the system has come under scrutiny. As the fiberglass piping approaches its 20-year design lifetime, a comprehensive

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fiberglass, gas pipeline, surge analysis, steady-state analysis, transient analysis, fiberglass gas pipeline
Fiberglass Engineering

Surge Analysis of a Fiberglass Gas Pipeline

A fiberglass gas pipeline is being implemented to supply gas from a compressor station to a delivery point. As the pipeline approaches completion, ensuring its operational safety and integrity is paramount. This case study examines the surge analysis conducted on the buried portion of the pipeline to identify potential vulnerabilities

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ammonia plant, colling water system, fiberglass, frp, design review
Ammonia Plant

Design Review of Cooling Water Systems for Ammonia Plant

An ammonia plant in Australia has experienced recurring failures in its cooling water systems since its commissioning in the mid-2000s. The plant utilizes two primary cooling systems: a Sea Cooling Water (SCW) system and a Fresh Cooling Water (FCW) system. The SCW system, with a high capacity, consists of multiple

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fatigue analysis, industrial pressure vessel
Fatigue Assessment

Fatigue Analysis of Industrial Pressure Vessel

This case study examines the structural integrity of an industrial pressure vessel subjected to cyclic thermal and pressure loading. In processes where such vessels experience significant temperature and pressure fluctuations, ensuring the longevity and safety of these critical components is paramount. The primary objective of this study is to assess

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Finite Element Analysis, FEA, Thermal Fatigue, Heat Exchanger, Header Boxes
Fatigue Assessment

Thermal Stress Analysis of Air Cooler Heat Exchanger Header Box

This case study examines the structural integrity of header boxes in an industrial air cooler heat exchanger subjected to cyclic thermal loading and static pressure. In processes where heat exchangers experience significant temperature fluctuations, ensuring the longevity and safety of critical components is paramount. The primary objective of this study

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