CALCULATIONS AND TASK EXAMPLES
From a technical task to a documented basis.
See a district heating project carried out by Solutn, illustrations from tank and component calculations, and typical tasks across our sectors and services. Find an area that matches your challenge.
ASME VIII / COMPONENT CALCULATION
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What would you like to solve?
The district heating reference shows a project carried out by Solutn. The tank and tee images illustrate the stated calculation types. The task cards describe typical workflows and possible deliverables.
FROM SOLUTN’S WORK
A district heating project carried out by Solutn.
An example of a district heating project carried out by Solutn. The project model includes piping, pumps, heat exchangers and platforms within the installation.
District heating project · 3D model from Solutn’s work.
TASK EXAMPLES / 01
District heating
Piping routes, thermal movements and supports in new and existing district heating installations.
Pipe stress in a modified piping route
A new piping route needs to be assessed at the facility’s temperatures and operating conditions.
View contribution, deliverables and basis
Solutn’s contribution We define load cases and analyse stresses, movements and reactions at relevant connections.
Possible deliverable A calculation report and loads for anchors, guides and supports.
Basis The project’s agreed piping and design basis.
A new component in an existing facility
A pump or heat exchanger needs to fit between existing installations.
View contribution, deliverables and basis
Solutn’s contribution 3D scanning, layout and mechanical integration can be combined with piping and support assessment.
Possible deliverable A geometric basis, 3D model and drawings within the agreed scope.
Basis The available plant space, component data and operating assumptions.
TASK EXAMPLES / 02
Oil and gas
Mechanical engineering for modifications to existing installations and assessment of pressure components.
Brownfield piping modification
An existing facility needs a new connection or a modified component.
View contribution, deliverables and basis
Solutn’s contribution We examine layout, piping routes, connection loads and relevant supports.
Possible deliverable 3D models, drawings and calculations for the agreed part of the project.
Basis Existing plant data and the project’s design requirements.
FFS for documented metal loss
An inspection has recorded metal loss in a pressure component.
View contribution, deliverables and basis
Solutn’s contribution We clarify damage geometry, measurement data and operating conditions, and perform the agreed Fitness-for-Service assessment.
Possible deliverable An FFS report with method, assumptions and assessment of the intended service.
Basis API 579-1/ASME FFS-1.
TASK EXAMPLES / 03
Wind energy
Equipment and structures for transport, handling and installation of wind turbine components.
Transport frame for a component
A component needs to be restrained and supported during a defined transport operation.
View contribution, deliverables and basis
Solutn’s contribution We work with geometry, contact surfaces, load cases and the strength of the frame and joints.
Possible deliverable A 3D model, calculation report and manufacturing documentation as agreed.
Basis Weight, centre of gravity, transport loads and the customer’s design requirements.
Lifting tool for installation
A tool needs to handle the component during a specific installation operation.
View contribution, deliverables and basis
Solutn’s contribution We clarify suspension, load positions and interfaces, and carry out design and calculations.
Possible deliverable Design and documentation for the agreed mechanical solution.
Basis The relevant lifting-accessory standard, such as EN 13155 where the equipment falls within its scope.
TASK EXAMPLES / 04
PtX and CO₂
Piping, components and mechanical solutions for PtX and CO₂ installations.
Layout around a process unit
Equipment and piping must be positioned to account for connections, installation and access.
View contribution, deliverables and basis
Solutn’s contribution We turn process and component data into a mechanical layout and relevant design clarifications.
Possible deliverable A layout, 3D model and drawings for the agreed installation.
Basis Process data, operating conditions and the project’s mechanical design basis.
Integration into existing installations
New process equipment needs to connect to a facility with limited space.
View contribution, deliverables and basis
Solutn’s contribution We can combine 3D scanning with new modelling and piping to examine the interfaces.
Possible deliverable Scan and model data for further engineering.
Basis The agreed survey scope and the requirements of the new components.
TASK EXAMPLES / 05
Offshore
Defined mechanical and structural tasks based on the project’s offshore loads and interfaces.
Finite element analysis of a structure
A structure needs to be assessed for the load cases included in the project.
View contribution, deliverables and basis
Solutn’s contribution We build the model and assess strength, deformation and relevant critical details.
Possible deliverable A calculation report with the model, loads, assumptions and results.
Basis The project’s offshore design basis and relevant structural requirements.
Supports for piping and equipment
Reactions from an installation need to transfer to the supporting structure.
View contribution, deliverables and basis
Solutn’s contribution We connect piping and equipment loads with the design and calculation of supports and joints.
Possible deliverable Loads, calculations and a design basis as agreed.
Basis The agreed operating, transport and installation loads.
TASK EXAMPLES / 06
Crane analysis and calculations
Examples of calculation tasks for cranes, lifting accessories and crane-supporting structures.
Changed lifting capacity on a jib crane
The owner wants to assess a changed SWL or a different hoist.
View contribution, deliverables and basis
Solutn’s contribution We assess new load cases, the jib, column, joints and support reactions.
Possible deliverable A crane analysis with assumptions, limitations and any proposals for modifications.
Basis The relevant crane standard and EN 13001 basis, according to the task’s scope.
Crane runway after a bridge crane modification
A change in hoist, capacity or use affects loads on the crane runway.
View contribution, deliverables and basis
Solutn’s contribution We examine wheel loads, load positions, load capacity, deformation and relevant joints.
Possible deliverable Documented loads and calculations for the agreed crane-supporting structures.
Basis EN 15011 for the relevant crane requirements and EN 1991-3/EN 1993-6 where applicable.
Lifting beam or spreader for a defined task
A lifting accessory needs to suit a specific load and lifting geometry.
View contribution, deliverables and basis
Solutn’s contribution We clarify suspension, centre of gravity, load distribution and calculations for the structure and joints.
Possible deliverable A design and calculation basis for the agreed technical documentation.
Basis EN 13155 and the relevant design rules for the equipment.
Read about crane analysis and calculations / Choose another area ↑
TASK EXAMPLES / 07
Pipe stress analysis
From analysis of a complete piping system to detailed calculations for an individual component.
ASME VIII calculation for a piping tee
A piping tee needs to be assessed for its specific geometry and loads.
View contribution, deliverables and basis
Solutn’s contribution We build the component model and assess it against the agreed ASME VIII basis.
Possible deliverable A component report with the model, loads, method and relevant acceptance criteria.
Basis ASME VIII, with the division and calculation method defined for the project.
Stress analysis in ROHR2
Stresses and thermal movements need to be examined for a defined layout.
View contribution, deliverables and basis
Solutn’s contribution We model the piping system, supports and relevant load cases.
Possible deliverable A calculation report with stresses, movements and reactions for further design.
Basis The project’s agreed piping code, component data and operating conditions.
TASK EXAMPLES / 08
3D scanning
Capture of existing geometry and use of scan data in subsequent engineering.
Scanning an existing installation
The project needs a geometric basis for an agreed area.
View contribution, deliverables and basis
Solutn’s contribution We carry out 3D scanning and process the data for the agreed deliverable.
Possible deliverable A point cloud with a description of scope and relevant limitations.
Basis Agreed requirements for area, access, level of detail and format.
From point cloud to a new 3D model
A new solution needs to be assessed against existing space constraints.
View contribution, deliverables and basis
Solutn’s contribution We use the point cloud alongside models of relevant new and existing components.
Possible deliverable A model basis for layout, piping and mechanical integration.
Basis The project’s selected interfaces and agreed modelling scope.
TASK EXAMPLES / 09
Fitness-for-Service
FFS examples for gas pipelines, hydrogen pipelines and other pressure equipment. We select the method according to damage, materials and operating conditions, and document the relevant API/ASME and DNV basis.
Gas pipeline with local metal loss
An inspection reveals corrosion and reduced wall thickness in a gas pipeline. The pipe needs to be assessed for the intended operating pressure.
View contribution, deliverables and basis
Solutn’s contribution We compare thickness measurements and the extent of damage with the pipe geometry, material, pressure and temperature. We calculate remaining strength using the relevant FFS method and apply DNV-RP-F101 where the damage and loads fall within its scope.
Possible deliverable A calculation report assessing the agreed operating conditions, relevant operating limits and inputs to a decision on continued operation, repair or replacement. Remaining life requires a documented basis for future damage progression.
Basis API 579-1/ASME FFS-1, DNV-RP-F101 where relevant, and the piping system’s original design basis.
Hydrogen pipelines and conversion to hydrogen
A piping system needs to be assessed for hydrogen or a hydrogen blend, or an inspection has identified a crack-like flaw in a hydrogen pipeline.
View contribution, deliverables and basis
Solutn’s contribution We review pipes, welds, flaw geometry, hydrogen fraction, pressure, temperature and load cycles. The calculation accounts for hydrogen’s effects on fracture toughness and crack growth using material data relevant to the specific hydrogen environment.
Possible deliverable A technical decision basis assessing the agreed operating conditions, data requirements and any need for material testing. For conversion projects, FFS forms part of the overall assessment and requalification of the piping system.
Basis API 579-1/ASME FFS-1 and relevant parts of DNV-RP-F123, edition 2026-03. DNV-RP-F108 may apply to girth-weld flaws; DNV-ST-F101 applies where the task concerns a submarine pipeline designed to that standard.
FFS can also be applied to other pressure components and changed operating conditions.
Local corrosion in a component
An inspection reveals a defined area with reduced wall thickness.
View contribution, deliverables and basis
Solutn’s contribution We review measurement data, component geometry and operating conditions, and carry out the relevant FFS assessment.
Possible deliverable A report with assumptions and assessment of the agreed service.
Basis API 579-1/ASME FFS-1.
Assessment for changed operating conditions
Existing equipment needs to be assessed for a proposed change in operation.
View contribution, deliverables and basis
Solutn’s contribution We clarify condition, documentation and the loads to be included in the assessment.
Possible deliverable A technical decision basis with results and required clarifications.
Basis API 579-1/ASME FFS-1 and the equipment’s relevant design basis.
TASK EXAMPLES / 10
Project management
Planning, coordination and follow-up for technical projects and defined deliverables.
Coordinating a plant modification
Several technical deliverables need to work together in a modification project.
View contribution, deliverables and basis
Solutn’s contribution We clarify responsibilities and interfaces, follow up on the schedule and bring together the necessary decisions.
Possible deliverable A project plan, status updates and an overview of clarifications and responsibilities.
Basis The project’s purpose, organisation and agreed authority.
Following up on an engineering deliverable
Models, drawings and calculations need to be handed over in an agreed sequence.
View contribution, deliverables and basis
Solutn’s contribution We coordinate inputs, reviews and deliverables, and make outstanding questions and changes visible.
Possible deliverable A deliverables overview and follow-up on milestones and documentation.
Basis The agreed task, schedule and the customer’s review process.
TASK EXAMPLES / 11
Mechanical design
Concepts, design and drawing documentation for a mechanical solution.
Specialist equipment from concept to drawings
A tool or frame needs to suit a specific component and function.
View contribution, deliverables and basis
Solutn’s contribution We develop geometry, joints and interfaces, and connect the design to relevant calculations.
Possible deliverable A 3D model, drawings and a calculation basis.
Basis Component data, loads and manufacturing requirements.
A mechanical modification in a facility
A new component needs to be integrated while accounting for existing space constraints.
View contribution, deliverables and basis
Solutn’s contribution We review layout and connections, and design the agreed mechanical components.
Possible deliverable A model and drawings for engineering or installation.
Basis Existing geometry and the new component’s requirements.
TASK EXAMPLES / 12
Finite element analysis
Detailed analysis of structural response to defined loads.
Critical details in a crane structure
Stresses and deformation at a load position need to be examined.
View contribution, deliverables and basis
Solutn’s contribution We build a model with relevant materials, loads and supports, and assess the results.
Possible deliverable A report with assumptions and relevant criteria.
Basis The crane’s agreed EN 13001 and product-standard basis.
Component analysis of a piping tee
A component requires a detailed assessment of geometry and loads.
View contribution, deliverables and basis
Solutn’s contribution We carry out finite element analysis using the selected method and assess the relevant results.
Possible deliverable A component report with the model, loads and acceptance criteria.
Basis ASME VIII, with the division and method defined for the project.
TASK EXAMPLES / 13
Pressure calculations
Tank and component calculations with a clear standards basis.
EN 13445 pressure calculation for a large tank
The tank plates and stiffeners need to be assessed under the defined loads.
View contribution, deliverables and basis
Solutn’s contribution We model the structure and assess the relevant load cases against the selected EN 13445 basis.
Possible deliverable A calculation report with method, assumptions and assessment.
Basis EN 13445; the relevant edition and analysis method are defined for the task.
ASME VIII calculation for a piping tee
A piping tee needs to be assessed as a pressure component.
View contribution, deliverables and basis
Solutn’s contribution We analyse the specific geometry and loads using the selected ASME VIII method.
Possible deliverable A documented component calculation.
Basis ASME VIII, with the division and method defined for the project.
CONTACT
What needs to be calculated or designed?
Send a short description, a drawing or a photo. Tell us what you want to modify or assess and when you need the deliverable. We will clarify the technical basis and next steps.
You are also welcome to call if the scope is still taking shape.
Jon Svenninggaard
Director · Solutn ApS
Opens your email application. You can attach drawings and images.
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8700 Horsens · Denmark