Consulting
Sulphur Recovery Burners Stress Analysis and Assessment
DRG was engaged to conduct a comprehensive stress analysis for three sulphur recovery burners, in accordance with ASME VIII Division 1 of the Boiler and
19 July 2024
DRG was engaged to conduct a comprehensive stress analysis for three sulphur recovery burners, in accordance with ASME VIII Division 1 of the Boiler and
The customer needed to determine the flow split between six cooling towers within a cooling tower arrangement. Analysis The six cooling towers were fed from
This project presented the assessment results of the analysis of the pressure-containing part of an actuator. The focus was on evaluating the actuator’s integrity through
In this study, the details and results of the stress analysis performed for the design of two platforms attached to the reinforcement rings of a
This case study detailed the static and dynamic assessment of a Wintrack Tower. Wintrack Towers represented a new geometrical design for suspension towers for high-tension
Dynaflow Research Group conducted a comprehensive stress analysis on three critical components of a high-pressure heat exchanger: the stationary tubesheet, cone-shaped channel, and shell with
This case study examines the stress analysis conducted on a firewater piping system constructed entirely of Glass Fiber Epoxy (GRE) piping. The system featured a
This case study examines the thermal stress analysis conducted on three critical components of a high-pressure heat exchanger: Stationary tubesheet Cone-shaped channel Shell including cone
This case study examines the static stress analysis conducted on the underground portion of a Seawater Network in a Gas Field development project. The underground
A fuel jetty terminal operator expressed concerns about potential two-phase flow issues during off-loading operations. The client indicated that trapped nitrogen used for purging lines
This case study introduces the stress assessment of two caissons: a sea water dump caisson with a 1000mm diameter header to which seven smaller diameter
An unloading line was being commissioned for use with cyclohexane. This line featured two ship loading arms located at the end of a jetty, and
During a certain period, scaffolding was required around three 30m tall depropanizer columns. Since the scaffolding was laterally supported from the columns, all wind loads
Introduction This study presents the findings from a comprehensive stability and stress analysis conducted on a planned high scaffolding construction surrounding a 30-meter-high column. The
Introduction A detailed pulsation analysis was conducted to evaluate the sensitivity of a new Measurement Proving Facility to disturbances. This facility, a piping installation designed
Computational Fluid Dynamics Analysis In this case study, we conducted a comprehensive analysis of the water flow in a pipeline featuring a 20-inch butterfly valve.
Surge And Dynamic Stress Analysis During the construction of a 1.6 km long steel pipeline intended for the offloading of naphtha from ships at a
Introduction In this case study, we examine the static stress analysis performed on eight metering skids designed for a flow station. These skids, intended for
This case study discusses the results of a stress analysis conducted on the external section of the pressure equalizing piping at a reactor. The analysis
In this study, the dividing wall of a vessel was subjected to a design pressure differential of 0.03 bar, while the shell had a design
This study presents the results of a static stress analysis conducted on a compressor and the exit area of a compression station. Analysis A static
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 new unit was added to an existing gas complex, and the firewater ring main was extended to serve it. Three sets of four 3-inch hydrant valves were modelled, twelve hydrants in total. Each hydrant is required to produce a minimum of 1452 l/min at 7.0 barg, and the hydrant
Extending an LNG terminal with a new cryogenic bunkering line At an LNG storage and loading terminal, a new line was constructed to supply liquefied natural gas directly to ferries. This 8-inch bunkering line branches from an existing 12-inch line that is used to load LNG into cargo ships. A
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
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