Engineering Analysis Expertise
At MISF Engineering LLC, we specialize in providing comprehensive pipe stress analysis and flexibility design services that ensure the safety, reliability, and code compliance of piping systems across a wide range of industries — including oil & gas, petrochemical, modular refinery, renewable fuels, and power generation.
With over 80 years of combined experience, our team brings multidisciplinary expertise in mechanical, process, thermal, and structural analysis, serving clients across oil & gas, petrochemical, renewable fuels, and modular refinery sectors.
Our analyses are performed in accordance with ASME, API, TEMA, AISC, and client-specific standards, and are backed by the use of industry-leading software such as HTRI, COMPRESS, PVElite, AFT Fathom/Impulse, ANSYS, and SolidWorks Simulation.
Scope of Expertise
1. Thermal and Heat Transfer Analysis
- Heat exchanger performance evaluation and optimizationusing HTRI Xchanger Suite.
- Thermal rating, derating, and performance troubleshootingfor shell & tube, air-cooled, and plate exchangers.
- Transient thermal stress evaluationfor startup and shutdown conditions.
- Heat recovery and energy integration studiesfor process optimization and carbon reduction.
- Thermal modeling of jacketed piping, heat tracing, and insulation systems.
2. Pressure Vessel and Mechanical Analysis
- Design-by-analysis (DBA)per ASME Section VIII, Division 2, using ANSYS or FEA
- Local stress, fatigue, and buckling analysis of nozzles, skirts, and support structures.
- Fitness-for-service (FFS)evaluations per API 579, including corrosion, pitting, and deformation assessments.
- Wind, seismic, and external pressure analysis per ASCE 7 and UG-22.
- Validation of saddle, lug, and skirt stresses using WRC 107/537 and 3D modeling.
3. Hydraulic and Flow Assurance Studies
- Steady-state and transient hydraulic analysisusing AFT Fathom and AFT Impulse.
- Pressure drop, velocity, and flow distribution analysisacross process and utility systems.
- Water hammer, surge, and pulsation studiesfor reciprocating compressor and pump systems.
- Line sizing and optimizationfor pressure balance, cavitation prevention, and NPSH margin assurance.
- Slug flow and multiphase transient modelingfor upstream and midstream applications.
4. Structural and Finite Element Analysis (FEA)
- Linear and nonlinear FEA for static, dynamic, and thermal loading conditions.
- Stress and deformation analysis of skids, platforms, and support steel using ANSYS and Pro.
- Lifting, transportation, and seismic restraint designof modular equipment packages.
- Fatigue and vibration analysis for rotating equipment bases, foundations, and piping supports.
- Buckling and modal analysis for shells, heads, and thin-walled components.
5. Advanced Studies and Specialized Modeling
- Vibration and dynamic response of piping and equipment systems.
- Flange leakage and gasket compression analysis per ASME VIII Appendix 2 and EN 1591-1.
- Weld joint efficiency, fatigue life estimation, and creep analysis for high-temperature services.
- Thermo-mechanical coupling to evaluate temperature-induced stress under cyclic operation.
- Root-cause failure analysis (RCFA)and performance troubleshooting for in-service equipment.
Software Capabilities
- HTRI Xchanger Suite– Heat exchanger thermal design and rating
- COMPRESS / PVElite– Pressure vessel mechanical design
- ANSYS / SolidWorks Simulation– Finite element analysis (FEA)
- AFT Fathom / AFT Impulse– Hydraulic and surge analysis
- CAESAR II / Autopipe– Piping stress and flexibility analysis
- Pro / RISA– Structural modeling and load evaluation
Deliverables
- Thermal and Mechanical Design Reports
- FEA Models, Plots, and Stress Contour Outputs
- Fitness-for-Service (FFS) Assessments per API 579
- Hydraulic and Surge Analysis Reports
- Structural Load and Deflection Summaries
- Equipment Rating/Rerating Calculations
- Design Verification and Optimization Reports
Integration with Other Disciplines
Engineering analysis at MISF Engineering is seamlessly integrated with process, mechanical, structural, and electrical design, ensuring complete technical alignment:
- Process: Accurate thermodynamic and hydraulic inputs.
- Mechanical: Equipment design validation and nozzle load compliance.
- Structural: Load transfer, foundation reaction, and skid stiffness evaluation.
- Electrical: Dynamic load considerations for motor-driven rotating systems.
This cross-discipline integration results in optimized, fabrication-ready designs with reduced rework and superior reliability in the field.
Recent Project Involvements (Illustrative)
- Pressure Vessel Stress Analysis: ASME Div 2 assessment and skirt stress verification for modular amine contactor.
- Heat Exchanger Optimization: HTRI thermal rating and pressure drop analysis for a cryogenic cooler train.
- Surge Analysis: Transient hydraulic modeling of a 12” condensate pipeline using AFT Impulse.
- Structural FEA: Base skid deflection and dynamic response analysis for a 900 HP compressor package.
- Fitness-for-Service Study: Local thinning and buckling assessment of an existing surge drum per API 579.
Why Clients Choose MISF Engineering
- Depth of Expertise:Multidisciplinary engineers with decades of experience in applied analysis.
- Code Compliance & Accuracy:All analyses performed per ASME, API, AISC, and client standards.
- Data-Driven Optimization:Engineering analysis supports cost reduction, reliability improvement, and design confidence.
- EPC Experience:Deep understanding of fabrication, construction, and field realities ensures practical results.
- Licensed Oversight:All deliverables reviewed and sealed by Registered Professional Engineers for technical assurance.
Partner With Us
From design validation and re-rating to detailed finite element modeling and surge analysis, MISF Engineering delivers high-fidelity engineering analyses that help clients make confident, data-driven decisions.
