Bolted Flange Design
PRG's unique design techniques incorporate the latest ASME and EN14445 design criteria.
Non-linear finite element analysis is used in leakage rate predictions using laboratory
test data correlated to ASME preliminary appendix BFJ "Gb", "Gs" and "a" parameters.
Bolt load interaction studies not previously possible are now used to estimate gasket
pressure (and flange leakage) for loose or tight individual bolt or series of bolts.
Stud bending and shear stresses due to initial tightening, tight/loose bolt interaction,
pressure and direct forces and bending moments are included in our analytical capabilities.
We routinely apply these high standard techniques to standardized flanges including
ASME B16.5, B16.47, DIN2600 flanges and heat exchanger body flanges.
Dynamic Analysis
PRG dynamics experts undertake field vibration problems in piping, fixed and
rotating equipment to effectively where necessary field measure, analyze, and
then engineer solutions Compressor analysis ,Wind and seismic analysis including
equipment in sensitive locations, typhoon and high earthquake zones. Our
engineers are fully conversant with the key seismic and wind design specifics.
Fitness for Service
Fracture mechanics , stress, equipment behavior condition and service, materials,
fabrication and quality are all part of the equation that determines equipment
life. Experienced engineers weigh these factors and seek the data that provides
these answers from stress state analysis to spec and Code compliance.
We have answered the questions” will it last and how long “ for coffin boxes,
nozzles and vessel components.
PRG Software encompasses API 579 modules to provide solutions to this growing
area of plant engineering requirement. These tools effectively allow your
engineers to satisfy these rigorous requirements. Custom consulting is offered
to provide integrity and remaining life assessments. Appropriate Fracture
Mechanics and Stress Analysis tools round out the ability to provide managers
and operators with the key survival answers they need on distressed or critical
equipment.
Integrity Assessment
PRG dynamics experts undertake field vibration problems in piping, fixed and rotating
equipment to effectively measure, analyze and then engineer solutions for compressor
analysis, wind and seismic analysis including equipment in sensitive locations, typhoon
and high earthquake zones. Our engineers are fully conversant with the key seismic and
wind design specifics.
Pressure Vessel Consulting
With a full suite of fabrication background tools and people, PRG has been performing
pressure vessel design, analysis and fabrication support for years.
We tackle the difficult problems. Unusual loadings, complicated assemblies, weird
attachments, non-standard components. This is where the unique features of FE/Pipe shine while providing the essential code compliance and evaluation answers sought to make informed judgments.
PRG staff completed the Engineering Design and Construction supervision of the
World's largest Coker Drum in Millennium Oilsand's Plant. Detailed FEA of the
head superstructure permitted custom attachment for difficult road transport.
A sample of our portfolio is listed below.
- Buckling examination prediction or evaluation is now as never before
readily undertaken.
- Drums, Elutriators, Calandrias, absorption towers, towers in wind and
earthquake.
- LPO reactors have been validated including fatigue and pulsation
difficulties.
- Hydrotest, PWHT analysis, and in-service failures.
- Thermal analysis and FE/Pipe models of CCR reactors, thermal sleeves,
thermal analysis, heat exchangers refractory lined heat transfer
problems can and all have been successfully performed for major high
pressure high temperature equipment plants.
- Thermal FEA of Cokers in service.
Vibration
PRG performs both Engineering Design and Field Analysis of piping, compressor, vessel
and rotating equipment vibration. This includes rotating tumblers, spin dryers, agitators,
field piping and vessel vibration.
We will go to the field and measure what is critical and constructive and apply this
knowledge and data to the tools that yield verifiable solutions. This includes solving
problems in piping components, fittings, expansion joints, attachments, failures, design,
static and dynamic analysis, and design certification.