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
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
Introduction This case study recounts the stress analysis conducted for the design of two structural platforms attached to reinforcement rings on a vacuum tower. These
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 🕖 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
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,
A coil anchored at both ends, with the cross-over overloaded In a refinery furnace, the radiant coil carries crude. Under a project designated high TAN, the existing carbon steel radiant coil piping is to be replaced by stainless steel, grade A312 TP316Ti. This account presents the stress analysis of the
Lines assessed 4 Pipe content Two-phase gas-liquid flow, all process conditions Flow regime, start-up Slug flow Flow regime, normal operation Annular flow Pipe material A 358 type 321, main material Design temperature 400 °C Design pressure 77.5 bar, Lines 1 and 3; 81.0 bar, Lines 2 and 4 Liquid slug
Line temperature 700 °C Design temperature 755 °C Design pressure 4.2 barg Pipe material A 312 type 304H Allowable stresses ASME B31.3 Appendix A Expansion loop 4 inch, 6,000 mm deep Creep-range service on the catalyst withdrawal line A waste catalyst line runs from the regenerator to the waste catalyst
Recently, fatigue cracks were discovered in the first-stage discharge line’s small-bore instrumentation branches of a hydrogen compressor. Initial investigations pointed to excessive out-of-plane vibrations as the primary driver of these failures. While the system was originally installed in 1995 with a pulsation study, and further axial supporting was added in
In industrial effluent systems, piping integrity is often threatened by the geotechnical behavior of the surrounding soil. This case study examines the peer review of a stress analysis for effluent pipelines situated between valve chambers. The primary challenge identified is differential settlement, where unpiled concrete pit walls shift relative to
Introduction This case study presents the finite element analysis (FEA) and verification process conducted for the pressure-containing parts of the F35-340 actuator, developed by Actuator Technology Company. The primary goal was to demonstrate the structural integrity of the actuator under specified operating conditions and to ensure compliance with the requirements
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