News & Insights from Dynaflow Research Group

Software

DRG software Cloud Licenses

Use DRG cloud licenses: Work more effective from home! During these Covid-19 times many people are working remotely. Software programs which rely on physical devices

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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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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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pulsation studies, fpso, Compressor systems
Fluid Dynamics

Pulsation and Vibration Analysis of FPSO Compressor System

Floating Production Storage and Offloading (FPSO) units play a crucial role in offshore oil and gas production. A critical component of these systems is the compressor skid, which compresses natural gas for processing or export. This case study focuses on the pulsation and vibration analysis of a three-stage reciprocating compressor

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pulsation analysis, reciprocating compressor system
Compressor Systems

Pulsation Analysis and Optimization of a Compressor System

This case study examines a reciprocating compressor system operated by a leading energy company, used for compressing natural gas. The system consists of three identical compressor units, each with two stages (suction and discharge pulsation suppression devices and connected piping), supplying gas to a common header. This system had been

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water hammer, jetty fire protection systems
Fluid Flow

Mitigating Water Hammer Effects in Jetty Fire Protection Systems

This case study examines the cooling water and foam systems located in two jetties (Jetty A and Jetty B) of a major industrial facility. These systems, critical for fire protection, have experienced significant issues related to water hammer effects and structural integrity. The primary objectives of this study are to

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water gas mixture
Firewater

Surge and Stress Analysis for a Firewater System

A client designed a foam piping system that covers the three tanks in a tank pit in the harbor. The firewater system is directly connected to the general water supply. The main pipeline passes through the foam house where the water is mixed with foam. A manifold divides the mixture

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Rotary Lobe Blower
Fluid Flow

Pulsation damper sizing according to API 619

A manufacturer of pulsation dampers requested Dynaflow Research Group to verify the performance of one of its discharge silencer designs in combination with a double rotary lobe gas blower by means of a pulsation study. The scope of the study consisted of a connecting straight pipe spool and the silencer

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nozzle, local mesh refinement, FEA
Fatigue Assessment

Fatigue Analysis For A Reactor Feed Pressurization Drum

A fatigue analysis has been done for a reactor feed pressurization drum. The vessel operates under cyclic pressure ranging from 25 psig to 200 psig (1.7 – 13.8 bar), with a design life of more than 5 million cycles. Additionally, it is subjected to 200 full-range cycles from atmospheric pressure

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seawater supply header, static stress analysis, GRE piping, CAESAR II, ISO 14692, pipe stress analysis, pressure surges, support arrangement, unbalanced loads, expansion bellow
Fiberglass Engineering

Seawater Supply Header: Static Stress Analysis

The above-ground seawater supply header is designed to transport seawater from two tie-ins in a discharge manifold of the seawater pumps to AGA. A comprehensive static stress analysis was necessary to determine the stress levels within the Glass Reinforced Epoxy (GRE) line. Additionally, it was crucial to define a support

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LNG terminal settlement, piping failure analysis, plastic deformation piping, Vacuum Insulated Piping assessment, pipe stress analysis, Dynaflow Research Group, mitigation strategies for piping, soil settlement impact, pipeline deformation analysis
Finite Element Analysis

Incident Analysis for Plastically Deformed Line Due to Settlement

At an LNG terminal, an unexpected settlement of 12 inches of soil, containing several sections of Vacuum Insulated Piping (VIP), occurred. Because the above-ground pipe supports were unaffected by the settlement, the differential displacement between the above-ground supports and the underground soil resulted in plastic deformation of some of the

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gasholder sizing review, cokes gas network, annual flaring volume, substitute gas, gasholder size impact, gas production-consumption mismatch, statistical analysis of gasholder, operational strategy in gas networks

Gasholder Sizing Review: An Analytical Case Study

This case study presents a comprehensive review of gasholder sizing within a cokes gas network. The primary objective is to evaluate the impact of adjusting the gasholder size on reducing annual flaring volumes and providing a buffer for short-term discrepancies between cokes gas production and consumption. The study explores various

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sulphur recovery burners, stress analysis ASME VIII Division 1, Finite Element Analysis burner, nozzle load assessment, burner design modifications, burner stress analysis, pressure vessel code compliance, burner structural integrity
Pipe Stress

Sulphur Recovery Burners Assessment: Stress Analysis

DRG was engaged to conduct a stress analysis for two sulphur recovery burners, adhering to ASME VIII Division 1 Boiler and Pressure Vessel Code. This analysis involved traditional Division 1 calculations complemented by Finite Element Analysis (FEA) to evaluate the impact of nozzle loads on critical junctions. Additionally, an assessment

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