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Complete Pulsation Analysis Using BOSpulse – Q&A Session
Is it required to have node increments in piping according to flow direction? The node numbering is not related to the flow direction. The flow
24 April 2026
Is it required to have node increments in piping according to flow direction? The node numbering is not related to the flow direction. The flow
Our 2025 classroom training course schedule for CAESAR II Statics, CAESAR II Dynamic and PV-Elite is online! We also offer a wide range of online training courses in fiberglass engineering, fluid flow, piping and pressure vessel design.
The combustion air system of an incinerator is a crucial component for its operation, consisting of a fan, two skids, interconnecting piping, and the incinerator
Introduction In a large industrial plant located in the southern Netherlands, a complex pipeline network traverses multiple sections separated by two major highways. This network,
A new off-loading system is under consideration for an ammonia storage plant, designed to transfer ammonia (NH3) from a jetty to three storage tanks. This
The exploration of various methods to enhance the Finite Element Analysis (FEA) of a 6-bed polybed vessel focuses on addressing potential fatigue issues. A Finite
During the design phase of a sea jetty for an oil terminal, Dynaflow Research Group (DRG) conducted a comprehensive stress analysis for the glass reinforced
The vessel under consideration features three horizontal trays positioned at different elevations. These perforated trays are supported by and welded to a support ring, which
A finite element analysis (FEA) was requested for a fiberglass coupler used in centrifugal cast fiberglass pipes. The aim was to evaluate the structural integrity
In the framework of a testing program for glass-reinforced epoxy (GRE) pipes, the long-term material strength properties at a high temperature of 150°C are determined
A shell and tube heat exchanger is utilized to condense propylene gas. The temperature of the propylene gas entering the shell side cycles through a
The client requested a static stress analysis for two cooling water headers, which were to be replaced with headers made from Glass Reinforced Epoxy (GRE).
Two identical spherical tanks, designed and commissioned in the 1960s for the storage of pressurized liquid butane, require re-evaluation for a new purpose. Each tank
A dryer vessel is designed for the purpose of removing water from ‘wet’ propylene liquid, where ‘wet’ denotes the presence of a small quantity of
A 5-inch glass-reinforced epoxy (GRE) transportation line has been installed underground, featuring several above-ground steel pipe connections. Designed to withstand a pressure of 150 bar
A planned modification to a cokes gas piping involves the installation of a new pipeline to a gas user and the decommissioning of an existing
A stress analysis was conducted on a tubular heat condenser utilizing finite element analysis (FEA). This condenser configuration includes a rotational asymmetric tube bundle secured
Introduction Following the replacement of an older tail gas heater, issues with leakage from the top tubesheet flange connection have emerged during production. Despite attempts
This case study details the determination of wall thickness for a Glass Reinforced Epoxy (GRE) tank. Analysis The process of defining the wall thickness was
A large-diameter seawater dump caisson, constructed from Glass Reinforced Epoxy (GRE), required a comprehensive strength assessment. This caisson featured five nozzles, with one positioned in
Dynaflow Research Group (DRG) conducted a static analysis of a rectifier or afterwash column, which consisted of a carbon steel shell with a 15 mm
Table of Contents A Good GRP Code Covers a Large Variety of Products and Loading Conditions A robust Glass Reinforced Plastic (GRP) piping code must
Thermal bowing is a structural phenomenon that arises when a temperature gradient exists across the cross-section of a pipe or vessel. In typical pipe design,
Table of Contents As the demand for flexible, energy-efficient, and reliable compressor operation grows—particularly in hydrogen and process gas applications—our clients increasingly turn to stepless
Table of Contents Multiphase flow is a recurring challenge in process engineering, where multiple fluid phases—such as gases, liquids, or solids—interact within a single flow
In the chemical and energy industries, liquid products such as LNG, ammonia, or naphtha are commonly transferred between ships and onshore storage tanks. These transfers
In the engineering domain, accurately simulating transient events in pipeline systems is critical, particularly for essential safety mechanisms such as firewater systems. These systems, typically
Introduction Pressure vessels are critical components in a wide range of industries, including power generation, petrochemical processing, and industrial manufacturing. These vessels are designed to
When Theodor von Kármán first discovered vortex shedding in 1911, he likely had no idea how pivotal his work would become for modern engineering, particularly
In a previous article, we introduced the risks and design considerations of repurposing an existing natural gas compressor system for hydrogen. That discussion focused on
ON-DEMAND 🕖 30 MIN 🌏︎ ENGLISH Understanding and Mitigating AIV and FIV in Modern Plant Design David Tickner Senior Engineer Get instant access
ON-DEMAND 🕖 30 MIN 🌏︎ ENGLISH How To Predict Stresses From Slug Flows Daniëlle de Jong Senior Engineer Get instant access Free recording
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Building models using the import PCF file feature & model verification In BOSfluids Thijs Krijger Project Engineer
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Solving Vibrations In A Two-Phase Process Line Frank Bos Partner Get instant access Free. Recording + slide
ON-DEMAND 🕖 50 MIN 🌏︎ ENGLISH Surge and dynamic stress analysis for an offshore wind farm using BOSfluids Mark Groen Software Lead Engineer
ON-DEMAND 🕖 25 MIN 🌏︎ ESPAÑOL Integración de BOSfluids con Caesar II y otros programas de tensión de tuberías Uri Peker Engineer Get instant
ON-DEMAND 🕖 35 MIN 🌏︎ ENGLISH BOSfluids integration with CAESAR II and other pipe stress programs Ryan Metcalf Manager USA Get instant access
A gas compressor station, comprising five similar compressor units connected by an inlet and outlet header, is planned for offshore construction in Mexico. Each unit features three compressor stages that elevate the gas pressure from ambient levels to 95 bar. This substantial pressure increase is accompanied by a significant temperature
Dynaflow Research Group (DRG) conducted comprehensive pipe stress analyses for a large oil and gas extraction facility. This facility comprises three onshore flow stations, one offshore flow station, and a gas export compressor station. Crude oil and gas are transported from the wells to the flow stations, where the crude
A steel pipeline was under construction for offloading naphtha from ships arriving at a jetty. A surge analysis was conducted to evaluate the pipeline’s capability under various transient upset scenarios. Following this, a dynamic stress and flexibility study was performed based on the calculated pressure surges. Analysis A transient one-dimensional
A comprehensive stress and surge analysis was performed for the firewater piping system of an LNG plant located in South America. The system, constructed using Glassfiber Reinforced Epoxy (GRE) pipes, underwent a dynamic response analysis to account for the largest and most critical unbalanced forces. Surge Analysis The existing firewater
This case study examines the detailed fatigue stress analysis conducted on a heat exchanger used to heat Polyol before it entered a refinery reactor. The complex 8-pass, U-tube configuration with a flanged stationary tube sheet required thorough investigation to ensure operational integrity and longevity. Analysis Methodology Engineers identified and analyzed
In this case study, a number of critical sections in an already installed fire water system were selected for review. At the time of the analysis, earlier on-site interventions had already been made, motivated by pipe failures. The analysis aimed to determine if additional interventions were necessary. Analysis Based on
This case study describes the stress analysis performed on a firewater piping system located in the Middle East. The system was constructed using Glassfier Reinforced Epoxy (GRE) pipes. Most of the piping was buried underground and included several connections to above-ground steel piping, fire hydrants, and similar equipment. Analysis The
Introduction At a Flow Station in Nigeria, vibration issues were observed in the suction and discharge headers, as well as the pump recirculation line. To address these concerns and identify potential underlying issues, DRG conducted a comprehensive pulsation analysis combined with a mechanical response assessment. Analysis A stress model was
Introduction In this case study, we explored the pulsation and vibration phenomena at a gas compression station equipped with four centrifugal compressors. These compressors generate flow pulsations due to the action of the impellors, which can excite the system’s acoustic and mechanical natural frequencies. To understand and evaluate the system’s
Introduction During the start-up and normal operation phases of a Gasoil Hydrofiner system, significant vibrations were observed in its piping. These vibrations, described as “large amplitude,” were particularly concerning. The unit’s piping was divided across four separate pipelines. Analysis Upon examining the system under various process conditions, it was determined
Pressure surges ocurr in piping systems whenever there are sudden changes in flow resistance from steady operation. Surges can cause significant damage, also at locations far removed from where they are initiated. For large or complex piping systems, this can make their impact challenging to predict without specialist analysis. Dynaflow
Introduction In this case study, we encountered undesirable vibrations in the downstream line of an angle control valve within a wash oil line. Initially, the upstream wash oil boasted a pressure of 150 bar and a temperature of 400°C. However, downstream of the valve, there was a significant pressure drop
Introduction A surge analysis and static stress analysis were necessitated for an FRP ballast water system following a prior incident to prevent its recurrence. The ballast system’s function was to redistribute water among compartments to balance oil storage. Analysis Surge Analysis One of the main objectives of the surge analysis
Introduction In the North Sea, three monopiles were equipped with a deluge fire-fighting system. To ensure its effectiveness, a water hammer calculation was carried out. This system comprised a two-ring fire water setup, with four sprinkler lines linked to the lower ring. Additionally, considerations were made for potential future scenarios
Introduction In the context of a gas facility, the addition of new units necessitated the enhancement of the existing firewater system. This system was designed to ensure a reliable source of firewater storage, make-up, and distribution capacity to effectively address the plant’s fire safety requirements. Analysis The objectives of the
Hydrogen generation equipment has an inherent risk for internal explosions, posing an issue to safety. The hydrogen piping and equipment are required to withstand internal explosions by limiting the damage to deformation. Although this disqualifies the component for future use, safety is not compromised. The objective was to find a
A District Cooling System (DCS) fits the sustainability challenges that our society is challenged with. It provides cooling capacity from a central facility; chilled water is distributed from this central facility to multiple buildings through a network of underground pipelines. The central cooling facility works more power efficient and it
Shell is building a biofuels facility at the Shell Energy and Chemicals Park Rotterdam, the Netherlands (Pernis Refinery) that will have an annual production capacity of 820,000 tonnes of biofuel. The biofuels facility is expected to start production in 2024. The project is ranked at position 7 in the top
Why Pay Attention to a Line Filling Process? During a start-up/line filling process a wave front of fluid progresses it’s way through the empty* parts of the line. However, when this front is required to change direction through bends the change in momentum generates an unbalanced force, this unbalanced force
What is Hogging and Sagging and what are the effects on piping? When waves pass over the length of a ship, the ships profile rises and bows following the peaks and troughs of said wave due to the changes in bouyancy along the length. This effect is known as hogging
For an ammonia plant in Western Australia, cooling water is supplied by a Sea Cooling water (SCW) as well as a Fresh Cooling Water (FCW) system. Both piping systems were constructed out of fiberglass material with pipe diameters of up to 72”. Heat exchangers acts as the interface between the
DYNAFLOW RESEARCH GROUP (“DRG”) Enters into Reseller Agreement with Quality Professional Software (“QPS”) RIJSWIJK, The Netherlands – January 24, 2024 (Dynaflow Research Group BV) –
Dynaflow Research Group and Seawind Ocean Technology announce collaboration focusing on technical readiness of floating offshore wind applications in the Mediterranean Sea. This landmark partnership