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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
Hydrogen is considered to be a key element in the energy transition. This molecule is the most notable option for the decarbonisation of hard-to-abate sectors
As part of our responsibilities at DRG, we conduct both standard pressure drop calculations and surge/slug analyses for firewater systems. Our involvement spans various stages,
Geothermal energy is a promising renewable energy source, but it comes with its own set of challenges. Two significant issues in geothermal well operations are
Flow-induced vibrations in piping systems are a critical aspect of mechanical engineering, impacting the reliability and integrity of various industrial setups. The Japan Society of
Introduction In the field of engineering design, the precision of pipe flexibility analysis models is critically important for accurately assessing nozzle loads in steel piping
In 2013, a major incident occurred in a Louisiana chemical plant. In a nonroutine operation, plant operators attempted to start a heat exchanger which had
To understand pressure surges in large piping systems, a good place to start is at home. When you finish washing your hands, turning off the
Brief introduction to piping vibrations Vibrations are an oscillatory motion about an equilibrium. The oscillatory movement causes alternating stresses in the system, which, if excessive
The pulsation challenge of a variable speed reciprocating compressorA pulsation analysis according to the API 618 is a good method of preventing excessive vibrations in
ON-DEMAND 🕖 50 MIN 🌏︎ ENGLISH Acoustically Induced Fatigue in Gas Filled Piping Systems Using BOSfluids Remco Boere Senior Software Engineer Get instant access
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Simulation Strategies and Practical Application for Vapour Cavity Formation Dr. Ir. Erik Jan Lingen Software Director Get
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Fundamentals, Failure Mechanisms, and Engineering Consequences of Vapor Cavity Formation Dr. Ir. Erik Jan Lingen Software Director
ON-DEMAND 🕖 45 MIN 🌏︎ ENGLISH Bridging the Gap: From NFPA 15 Steady-State Design to Transient Surge Analysis in Tank Terminals Uri Peker
ON-DEMAND 🕖 45 MIN 🌏︎ ENGLISH Support Stiffness Effects on Mechanical Natural Frequencies in Reciprocating Compressor Piping Systems Thijs Krijger Project Engineer Get
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Beyond hydraulics: a practical guide to fire water analyses with BOSfluids Dr. Ir. Erik Jan Lingen Software
AIV Fundamentals At what pipe diameter and wall thickness should one be concerned about AIV? What is the relevant D/T ratio? This depends on the
ON-DEMAND 🕖 3 SESSIONS x 45 MIN 🌏︎ ENGLISH Complete Pulsation Analysis Using BOSpulse Tim Gebraad Software Lead Engineer Marienne Faro Software Sales Engineer
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Getting the Timing Right: Why Time Step Size Is Critical In Surge Analysis Dr. Ir. Erik Jan
ON-DEMAND 🕖 30 MIN 🌏︎ ENGLISH Protecting Tank Terminal Assets Through Surge and FFS Analyses Thijs Krijger Project Engineer Katrine van Overhagen Engineer
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Choosing the right GRE piping standard: a comparison of ISO 14692 and ASME NM.2 Edwin Schimmel Project Engineer
ON-DEMAND 🕖 50 MIN 🌏︎ ENGLISH How Stepless Capacity Control Shapes Flow and Pulsations Thijs Krijger Project Engineer Get instant access Free. Recording
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Water Hammer Analysis & Mitigation in Pipeline Systems with BOSfluids Dr. Ir. Erik Jan Lingen Software Director
ON-DEMAND 🕖 60 MIN 🌏︎ ENGLISH Water Hammer Analysis & Mitigation in Pipeline Systems with BOSfluids Dr. Ir. Erik Jan Lingen Software Director
ON-DEMAND 🕖 35 MIN 🌏︎ ENGLISH Understanding, Modelling, and Managing Thermal Bowing using CAESAR II David Tickner Senior Engineer Get instant access Free.
What are the key challenges in applying CFD to simulate and optimize multiphase processes in complex industrial systems? The main challenge here is the ability
Do CAESAR II formulas for thermal bowing and output results match with FEA? Short Answer: There can be significant differences between the results of CAESAR II and FEA.Explanation:The
ON-DEMAND 🕖 35 MIN 🌏︎ ENGLISH Using CFD for optimizing multiphase process engineering Bart van der Zalm Senior Engineer Get instant access Free.
DRG CONFERENCE – 35TH ANNIVERSARY 🌏︎ ENGLISH Innovations that Change the Engineering Industry Get instant access Free. Recording + slide deck available Event Description
ON-DEMAND 🕖 35 MIN 🌏︎ ENGLISH Fatigue Assessment According to ASME B&PV VIII Div.2 Lukas Bajarunas Senior Software Engineer Get instant access Free
ON-DEMAND 🕖 45 MIN 🌏︎ ENGLISH Fiberglass Piping Stress Envelope According to ISO 14692 using CAESAR II Edwin Schimmel Project Engineer Get instant
Surge loads from deluge valve closure were applied to nine composite firewater deluge systems in a CAESAR II time-history analysis and checked as occasional stresses against the ISO 14692 envelope. With three axial stops added in S4, all stress points lie within the envelope; the highest of the nine Smax
Elbows replaced after hydrotest problems A 5-inch glass-reinforced epoxy (GRE) transportation line runs buried between two locations. It connects to above-ground steel piping at both ends and to a steel manifold at about halfway. In total there are four connections between GRE and steel. The line is designed for 150
Buried Fibreglass Piping and an Undefined Compression Envelope The underground part of a seawater network at a gas field development was to be built in filament-wound fibreglass reinforced epoxy pipe buried in sand. The scope covered two systems, 1001 and 1002. Each system consists of a header of 54-inch and
This project covered a family of glass fibre reinforced plastic (GRP) couplers, designated FWC, in five configurations: a DN600 coupler in a small (S) and a medium (M) variant, a DN1200 medium coupler, a DN2400 large coupler, and a DN3600 extra large coupler. Each coupler is a long cylindrical GRP
Technical Evaluation of Three Candidate GRP Pipe Suppliers For a glass-reinforced plastic (GRP) pipe system on a project, the client selected three potential GRP pipe suppliers, each to be evaluated from a technical perspective. Each supplier submitted a set of technical documents describing its component design, qualification testing and system
A seawater dump caisson made of glass-reinforced epoxy (GRE) needed its wall, laminate and joint details defined. The task was to find thicknesses and bonding lengths that would keep stresses within the allowable stress envelope conforming to ISO 14692, and to determine the loads that the restraints, flanges, laminated joints
The Firewater Network The firewater network in this case is built from glass-fibre reinforced epoxy (GRE), grade Wavistrong EST 20, with DN150 pipe running mainly underground. Above ground, steel sections connect to the GRE by flanges, and vertical branches rise to fire hydrants and similar connections. The system was specified
A manhole interrupts the load-bearing shell of an elbow or tee, so the component is regarded as a non-standard piping fitting. The three fittings here are two 20 inch long-radius elbows, EX-23 and EZ-22, in SA-234 Gr. WP11 Cl. 1, and one 32 inch ASME B16.9 welding tee, FB-11, in
Furnace F-501 at a refinery heats crude through radiant coils made of A312 TP316Ti stainless steel. Each coil enters the radiant section at grade level, runs 21 loops parallel to the refractory lined furnace wall, crosses over to the roof section, makes 8 further loops against the roof, and leaves
Two identical Visbreaker bottom pumps at an onshore refinery were due for replacement. The existing pumps were of single side suction execution, the new pumps of double side suction execution. For the new pumps a minimum straight length of five times the diameter (5D) was specified directly upstream of the
A gas line between the high and low pressure separators of a hydrocracking unit failed in service, probably through material fatigue caused by vibration. An additional 3-way stop was fitted just downstream of the TSO valve to reduce vibration levels, and vibration was then measured at nine locations on the
The crude heating system serves one of two distillation trains: crude is preheated in a convection box, heated in the radiant section of the furnace and carried by a feed line to the tower. Crude heating generates two-phase flow, whose fluctuations impose the unsteady unbalanced loads at elbows and tees
At a refinery, a branch connection designated W31056, the 2″ line that ties in to the high-pressure steam attemperator J-3103 (a desuperheater), failed in service. A similar failure had occurred about twenty years earlier, in 1992. On-site observations report periodic movement of the connecting header, line 6″-S31022, which contains the
A refinery operator is replacing two existing steel main cooling water headers with Glass Reinforced Epoxy (GRE) piping. The two changes were raised as Technical Change Requests, and this case study covers the second of them, the “lube” cooling water header. The GRE consists of a header and a branch
A wash oil line was vibrating in the vertical section downstream of its angle control valve. It has been reported that the vibration amplitude increases with increasing flow, and in the future the mass flow rate may still be increased further. No vibration measurements had been carried out, so the
Undesirable vibrations were observed in the wash oil line between two vessels during activation of the wash oil flow, most severe in the vertical section immediately downstream of the angle control valve. An earlier study had already identified slug flow as the most probable cause and proposed mitigation measures, and
The 10″ inlet and outlet lines of furnace H301 carry two-phase content during all process conditions. Under certain process conditions, staff reported feeling like getting seasick when standing on the platform of the furnace, and the piping was seen vibrating mainly near the furnace. The impact of these dynamic effects
A flue-gas overhead line runs from a third stage separator to a waste heat boiler. It carries gas at a maximum operating temperature of 740 °C upstream of the orifice chamber and is designed for 755 °C in the hot-walled sections. At those temperatures the hot-wall material, stainless steel A240
Two existing steel cooling water headers were to be replaced with Glass Reinforced Epoxy (GRE) piping under two Technical Change Requests. This case study covers the first request, for the main cooling water header “boiler”. The second, covers the “lube” header. A flexibility analysis was required, together with recommendations, to
An 8-inch line carrying two-phase content from a heat exchanger to a gasoil stripper at a refinery had been vibrating for years, mainly in the two shorter horizontal sections, one downstream of the heat exchanger and one just upstream of the stripper. The operator had reported vibration for 5 to
A line in the creep range, where the weight loads set the support design The line studied here is the revised fluegas overhead line between the third stage separator and the superheater. It operates at 725 °C in the hot walled sections and 200 °C in the cold walled section,
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